chemical reaction Crossword Puzzles

Adjectives in Chemistry 2022-06-23

Adjectives in Chemistry crossword puzzle
Across
  1. chemical reaction that release heat.
  2. is a stable chemical that does not produce chemical reaction.
  3. chemical reaction that absorb heat.
  4. is substance that are not acidic or basic.
  5. reactions where chemicals react strongly with each other.
  6. substance is alkaline.
  7. substances react instantly with other chemicals.
  8. is chemical reactions that occurs naturally.
Down
  1. is used to describe the chemicals involve in the chemical reaction.
  2. substances are very dangerous and acidic.
  3. is the total of the atomic weights of all the elements in a compound.
  4. compounds contains carbon atoms.
  5. compounds have carbon atoms.
  6. substance is acid.
  7. reactions where chemicals don'react with each other.

15 Clues: substance is acid. • compounds have carbon atoms. • substance is alkaline. • compounds contains carbon atoms. • chemical reaction that absorb heat. • chemical reaction that release heat. • substances are very dangerous and acidic. • is substance that are not acidic or basic. • is chemical reactions that occurs naturally. • ...

Chemical Reactions 2023-05-01

Chemical Reactions crossword puzzle
Across
  1. The energy stored in the chemical bonds of a substance
  2. When a single compound breaks down into two or more products
  3. The substances present after a chemical reaction occurs
  4. Reactions that absorb energy from the surroundings
  5. The mass of the reactants always equals the mass of the products
  6. A reaction involving the exchange of positive ions between two compounds
  7. Reactions that release energy to the surroundings
  8. Energy is neither created nor destroyed in a chemical reaction
  9. When one element replaces another element in a compound
  10. This theory states that bonds are broken when molecules collide
Down
  1. A chemical; equation that does not indicate
  2. These are used to balance the chemical equation
  3. A chemical change that happens when an element or compound reacts with oxygen
  4. A compound composed of hydrogen and carbon
  5. The relative reactivities of elements within groups
  6. When tow or more substances react to from a single new substance
  7. The speed at which reactants become products
  8. Substances present before the chemical reaction occurs

18 Clues: A compound composed of hydrogen and carbon • A chemical; equation that does not indicate • The speed at which reactants become products • These are used to balance the chemical equation • Reactions that release energy to the surroundings • Reactions that absorb energy from the surroundings • The relative reactivities of elements within groups • ...

Changes In Matter Vocab 2024-05-15

Changes In Matter Vocab crossword puzzle
Across
  1. the form of energy transferred between two things
  2. a characteristic of a substance that can be observed in a chemical reaction
  3. matter sticking together
  4. the part that goes through change in a reaction
  5. the science that deals with chemicals and properties
  6. a change of material into another
  7. reactants to products
  8. holds molecules together
  9. a characteristic of a substance that can be observed without change`
Down
  1. a type of change where the physical properties undergo a change
  2. makes up everything
  3. releasing heat
  4. enduring chemical reaction without actually being a chemical reaction
  5. smallest unit of matter
  6. the ability to do work
  7. has weight
  8. 2 elements together
  9. absorbing heat

18 Clues: has weight • releasing heat • absorbing heat • makes up everything • 2 elements together • reactants to products • the ability to do work • smallest unit of matter • matter sticking together • holds molecules together • a change of material into another • the part that goes through change in a reaction • the form of energy transferred between two things • ...

Elements, Compounds, and Mixtures 2022-05-24

Elements, Compounds, and Mixtures crossword puzzle
Across
  1. forms a chemical element
  2. undergoes change during a reaction
  3. group 18 of the periodic table
  4. row on the periodic table
  5. composition is uniform throughout the mixture
  6. has the properties of both metals and nonmetals
  7. brittle, dull, and poor conductors
  8. positively charged particle
  9. ductile, lustrous, and good conductors
  10. cannot be further broken down by any chemical reaction
Down
  1. substance that is formed from a chemical reaction
  2. column on the periodic table
  3. quantity of matter in an atom of an element
  4. neutral particle
  5. composition is not uniform throughout the mixture
  6. tabular display of the chemical elements
  7. made of identical molecules consisting of atoms of two or more chemical elements
  8. equal protons but different neutrons
  9. length*width*height
  10. negatively charged particle

20 Clues: neutral particle • length*width*height • forms a chemical element • row on the periodic table • positively charged particle • negatively charged particle • column on the periodic table • group 18 of the periodic table • undergoes change during a reaction • brittle, dull, and poor conductors • equal protons but different neutrons • ductile, lustrous, and good conductors • ...

Changes In Matter Vocabulary Crossword 2025-04-24

Changes In Matter Vocabulary Crossword crossword puzzle
Across
  1. result of chemical reaction
  2. substance made of one type of atom
  3. amount of matter in an object
  4. how hot or cold something is
  5. how chemicals react to each other
  6. is there at the start of the reaction, gone at the end
  7. Molecules attraction to one another
  8. blend of two substances
Down
  1. branch of science
  2. amount of matter in something
  3. two or more atoms together
  4. releases heat
  5. kept in chemical bonds
  6. speeds up chemical reaction
  7. energy transferred
  8. has weight and takes up space
  9. smallest unit of matter, building Block for matter
  10. holds chemicals together

18 Clues: releases heat • branch of science • energy transferred • kept in chemical bonds • blend of two substances • holds chemicals together • two or more atoms together • result of chemical reaction • speeds up chemical reaction • how hot or cold something is • amount of matter in something • amount of matter in an object • has weight and takes up space • how chemicals react to each other • ...

Adjectives in Chemistry 2022-06-23

Adjectives in Chemistry crossword puzzle
Across
  1. substances are very dangerous and acidic.
  2. reactions where chemicals react strongly with each other.
  3. substances react instantly with other chemicals.
  4. is a stable chemical that does not produce chemical reaction.
  5. chemical reaction that release heat.
  6. is used to describe the chemicals involve in the chemical reaction.
Down
  1. compounds contains carbon atoms.
  2. reactions where chemicals don'react with each other.
  3. is a bitter substance.
  4. is the total of the atomic weights of all the elements in a compound.
  5. is substance that are not acidic or basic.
  6. chemical reaction that absorb heat.
  7. is chemical reactions that occurs naturally.
  8. atoms exist in inorganic compounds.
  9. is a sour substance.

15 Clues: is a sour substance. • is a bitter substance. • compounds contains carbon atoms. • chemical reaction that absorb heat. • atoms exist in inorganic compounds. • chemical reaction that release heat. • substances are very dangerous and acidic. • is substance that are not acidic or basic. • is chemical reactions that occurs naturally. • ...

sience 2025-05-16

sience crossword puzzle
Across
  1. what is the flow of energy
  2. change the change that transforms chemicals
  3. speeds up chemical reaction
  4. the ability to work
  5. result of chemical reaction
  6. small group of two or more atoms
  7. what is the natural branch of science
  8. building block of matter
  9. the force of two molecules
Down
  1. change what alters appearence
  2. what takes up space or weight
  3. what substances introduce
  4. how hot or cold something is
  5. holds atoms together
  6. two or more substances combined
  7. the reaction from chemicals
  8. intreads or transforms
  9. what is the quantity of matter

18 Clues: the ability to work • holds atoms together • intreads or transforms • building block of matter • what substances introduce • what is the flow of energy • the force of two molecules • speeds up chemical reaction • result of chemical reaction • the reaction from chemicals • how hot or cold something is • change what alters appearence • what takes up space or weight • ...

Biomolecules/Enzymes 2020-10-23

Biomolecules/Enzymes crossword puzzle
Across
  1. Many Monomers joined together
  2. Monomers of Carbohydrates
  3. Attaches to the Enzyme at the Active Site
  4. Quick energy
  5. Elements in Proteins
  6. Most Enzymes end in...
  7. Monomer of Nucleic Acid
  8. A _____ Reaction is when one chemical turns into another
  9. Monomers of Lipids
  10. Make up cell membranes
Down
  1. Store genetic information
  2. Long-lasting energy
  3. Without this enzyme, you'd be considered Lactose intolerant
  4. To function properly, an Enzyme needs a specific pH and...what?
  5. Monomers of Proteins
  6. A substance that speeds up a Chemical Reaction
  7. An Enzyme ____ the amount of energy needed for a chemical reaction
  8. Carbohydrates end in...
  9. Elements in Nucleic Acid
  10. Elements in Carbohydrates and Lipids

20 Clues: Quick energy • Monomers of Lipids • Long-lasting energy • Monomers of Proteins • Elements in Proteins • Most Enzymes end in... • Make up cell membranes • Carbohydrates end in... • Monomer of Nucleic Acid • Elements in Nucleic Acid • Store genetic information • Monomers of Carbohydrates • Many Monomers joined together • Elements in Carbohydrates and Lipids • ...

Chemistry Vocabulary Final 2025-05-06

Chemistry Vocabulary Final crossword puzzle
Across
  1. ion that consists of two or more atoms bonded together, which collectively have a net charge
  2. negatively charged subatomic particle found outside the nucleus
  3. distance from the nucleus of an ion to the outermost electron after the atom has gained or lost electrons to form an ion
  4. chemical compound consisting of a hydrogen and a carbon
  5. the ability of an atom to attract electrons towards itself when it is part of a chemical bond
  6. deals with quantitative relationships between reactants and products in a chemical reaction; uses a balanced chemical reaction
  7. chemical bond formed when two nonmetal atoms share electrons in order to achieve a full outer electron shell
  8. substance in a chemical reaction that is used up first
  9. pairs of electrons that are shared between two atoms in a chemical bond
  10. solid that forms and separates from a liquid solution during a chemical reaction
  11. amount of space an object takes up
  12. substances that are present at the beginning of a chemical reaction
  13. refers to the region around a central atom where electrons are likely to be found
  14. positively charged ion that has lost electrons
  15. substance made of two or more elements chemically combined in a fixed ratio
  16. number of protons in the nucleus of an atom
  17. pure substance made of only one type of atom
  18. type of chemical reaction in which a compound breaks down into simpler substances
  19. chemical compound formed when two nonmetal atoms share electrons in order to achieve a full electron shell
  20. an ionic compound formed with a metal and a nonmetal
  21. combination of two or more substances physically combined in variable proportions
  22. refers to the emission and transmission of energy in the form of waves or particles when an atoms nucleus decays
  23. 6.022x10^23 particles
  24. process in which reactants are transformed into products through the breaking and forming of chemical bonds
  25. subatomic particle found in the outermost shell of an atom
  26. states that atoms tend to gain, lose, or share electrons in order to have a full outer electron shell
  27. new substances formed from a chemical reaction
  28. molecule that has a net dipole, meaning there is an uneven distribution of electrons
  29. force of attraction that holds atoms together in a compound by either transferring or sharing electrons to become more stable
  30. mixture in which the components are not evenly distributed and composition is not uniform
  31. measure of the efficiency of a chemical reaction, compares actual and theoretical yield
  32. total number of protons and neutrons found in the nucleus of an atom
  33. region of space around the nucleus of an atom where there is a high probability of finding an electron
  34. the amount of energy required to remove one electron from a neutral atom
  35. substance in a chemical reaction that is not completely used up when the reaction is finished
  36. maximum amount of product that can be formed in a chemical reaction, calculated based on the balanced chemical equation and the amount of limiting reactant
  37. chemical reaction in which one element replaces another in a compound
Down
  1. measure of a fluids resistance to flow
  2. the temperature at which a liquid changes to a gas
  3. diagram that shows a representation of valence electrons of an element or molecules represented by dots
  4. chemical compound formed by the electrostatic attraction between cations and anions
  5. chemical reaction in which two or more compounds exchange ions to form two new compounds
  6. used to convert a quantity from one unit to another without changing its value
  7. number assigned to an atom that represents its charge in an ionic compound
  8. conversion factor derived from the coefficients of a balanced equation, showing the ratio of moles between substances
  9. the distance from the nucleus of an atom to the outermost electron shell
  10. positively charged subatomic particle found in the nucleus
  11. a regular, repeating arrangement of atoms, ions, or molecules in a solid
  12. the arrangement of electrons in their most stable form in an orbital
  13. same element with different different number of neutrons
  14. neutrally charged subatomic particle found in the nucleus
  15. mass of one mole of a substance
  16. mixture in which the components are evenly distributed and has uniform composition
  17. building block of all matter
  18. type of chemical reaction in which two or more simple substances combine to form a complex compound
  19. type of chemical bond formed when electrons are transferred from one atom to another,resulting in the formation of cations and anions
  20. chemical reaction that absorbs energy, usually in the form of heat
  21. Pairs of valence electrons that are not involved in bonding with other atoms
  22. elements that naturally exist as molecules composed of two identical atoms bonded together because they are more stable in this form than as individual atoms
  23. used to measure the amount of a substance
  24. anything that has mass and takes up space
  25. refers to the percentage by mass of each element in a compound
  26. atom or molecule with an electric charge because it has gained or lost electrons
  27. amount of matter in an object
  28. weighted average of all the masses of all the naturally occurring isotopes on the periodic table
  29. chemical reaction in which a substance reacts with oxygen to produce carbon dioxide and water
  30. chemical compound containing at least one oxygen atom
  31. measured amount of product obtained from a chemical reaction
  32. chemical reaction that releases energy in the form of heat or light
  33. family on the periodic table that corresponds to the number of valence electrons
  34. sum of the atomic masses of all the atoms in a chemical formula, expressed in amu
  35. horizontal row in the periodic table that corresponds to the number of energy levels
  36. negatively charged ion that has gained electrons
  37. measure of how readily an element or compound undergoes a chemical reaction
  38. molecules that do not have a net dipole, meaning there is an even distribution of charge

75 Clues: 6.022x10^23 particles • building block of all matter • amount of matter in an object • mass of one mole of a substance • amount of space an object takes up • measure of a fluids resistance to flow • used to measure the amount of a substance • anything that has mass and takes up space • number of protons in the nucleus of an atom • pure substance made of only one type of atom • ...

Arianna Rice Crossword Puzzle 2017-03-01

Arianna Rice Crossword Puzzle crossword puzzle
Across
  1. substance that takes part in and undergoes change during a reaction.
  2. article or substance that is manufactured or refined for sale.
  3. replacement- s a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound. This type of reaction is typically pictured like this: Here, A replaces B in the compound BC.
  4. Combustion reactions always involve molecular oxygen O2. Anytime anything burns (in the usual sense), it is a combustion reaction. Combustion reactions are almost always exothermic
  5. chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
  6. replacement- double replacement reaction or metathesis reaction, is a type of reaction that occurs when the cations and anions switch between two reactants to form new products.
  7. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. ion- A polyatomic ion, as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit. The prefix poly- means "many," in Greek, but even ions of two atoms are commonly referred to as polyatomic.
  9. produce or provide (a natural, agricultural, or industrial product).
  10. the process or result of oxidizing or being oxidized.
  11. They are hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, iodine and astatine.
Down
  1. combination or composition, in particular.
  2. equation- A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.
  3. compound- A binary compound is a chemical compound that contains exactly two different elements. [1] Examples of binary ionic compounds include calcium chloride (CaCl2), sodium fluoride (NaF), and magnesium oxide (MgO), whilst examples of binary covalent compounds include water
  4. of or containing water, typically as a solvent or medium.
  5. cause (an event or situation, typically one that is bad or undesirable) to happen suddenly, unexpectedly, or prematurely.
  6. A number or symbol multiplied with a variable or an unknown quantity in an algebraic term. For example, 4 is the coefficient in the term 4x, and x is the coefficient in x(a + b). A numerical measure of a physical or chemical property that is constant for a system under specified conditions.
  7. the state or process of rotting; decay.
  8. Reduction Definition. A half-reaction in which a chemical species decreases its oxidation number, usually by gaining electrons. The other half of the reaction involves oxidation, in which electrons are lost. Together, reduction and oxidation form redox reactions (reduction-oxidation = redox)

19 Clues: the state or process of rotting; decay. • combination or composition, in particular. • the process or result of oxidizing or being oxidized. • of or containing water, typically as a solvent or medium. • article or substance that is manufactured or refined for sale. • substance that takes part in and undergoes change during a reaction. • ...

Chemical Chameleon: A Spectrum of Transformational Tales 2024-04-30

Chemical Chameleon: A Spectrum of Transformational Tales crossword puzzle
Across
  1. Substances that take part in a chemical reaction
  2. when heat is absorbed
  3. Removal of O2
  4. more reactive element displaces a less reactive metal from it's salt solution
  5. when oxidation or reduction takes place simultaneously
  6. the simple form of a chemical reaction
  7. one compound breaks into elements and compounds
  8. Slow oxidation of oil and fat
  9. an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products
Down
  1. Substances that are produced at the end of the reaction
  2. chemical reaction expressed in words rather than chemical formulas
  3. deterioration of metals by air, moisture, chemicals, etc
  4. Addition of O2
  5. Two compounds exchange their ions to for new compounds
  6. two elements or compounds combine to form new compounds
  7. when heat is released

16 Clues: Removal of O2 • Addition of O2 • when heat is absorbed • when heat is released • Slow oxidation of oil and fat • the simple form of a chemical reaction • one compound breaks into elements and compounds • Substances that take part in a chemical reaction • when oxidation or reduction takes place simultaneously • Two compounds exchange their ions to for new compounds • ...

reaction rates jasmine a romero 2020-01-17

reaction rates jasmine a romero crossword puzzle
Across
  1. s a force exerted by the substance per unit area on another substance. The pressure of a gas is the force that the gas exerts on the walls of its container
  2. must possess to undergo a specified reaction.' buffering
  3. to treat with a buffer.
  4. the state of being decomposed; decay.
  5. [ sol-yuh-bil-i-tee ]SHOW IPA
  6. oxidation not accompanied by high temperature and light.
  7. redox is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the transfer of electrons between chemical species, most often with one species undergoing oxidation while another species undergoes reduction
  8. the quality or property of being soluble; relative capability of being dissolved
  9. Also called interactant. Chemistry. any substance that undergoes a chemical change in a given reaction.
  10. combination attended by the production of heat and light.
  11. chemistry. a substance that causes or accelerates a chemical reaction without itself being affected.
  12. replacement reaction where an element reacts with a compound and takes the place of another element in that compound. This type of reaction is typically pictured like this: Here, A replaces B in the compound
Down
  1. rapid oxidation accompanied by heat and, usually, light.
  2. of the warmth or coldness of an object or substance concerning some standard value. The temperature of the two systems is the same when the systems are in thermal equilibrium.
  3. pressure, or composition, that is a measure of the energy that is not available for work during a thermodynamic process. A closed system evolves toward a state of maximum entropy.
  4. a substance obtained from another substance through chemical change.
  5. reaction noun Chemistry.
  6. (in a solution) a measure of the amount of dissolved substance contained per unit of volume.
  7. energy he minimum quantity of energy which the reacting Le Chatelier's principle, also called Chatelier's principle of "The Equilibrium Law", can be used to predict the effect of a change in conditions on some chemical equilibria. The principle is named after Henry Louis Le Chatelier and sometimes Karl Ferdinand Braun who discovered it independent
  8. that, depending on ambient conditions, can proceed in either of two directions: the production of the reaction products from the reactants, or the production of the original reactants from the formed reaction products. Compa
  9. process, the change in the quantity is equal to the heat transferred during the process. Symbol: H
  10. Chemical synthesis is the artificial execution of useful chemical reactions to obtain one or several products. This occurs by physical and chemical manipulations usually involving one or more reactions.
  11. chemistry. a substance that decreases the rate of or stops completely a chemical reaction.
  12. complex In chemistry an activated complex is defined by the International Union of Pure and Applied Chemistry as "that assembly of atoms which corresponds to an arbitrary infinitesimally small region at or near the col of a potential energy surface".
  13. a quantity associated with a thermodynamic system, expressed as the internal energy of a system plus the product of the pressure and volume of the system, having the property that during an
  14. electron
  15. area is important in chemical kinetics. Increasing the surface area of a substance generally increases the rate of a chemical reaction. For example, iron in a fine powder will combust, while in solid blocks it is stable enough to use in structures.
  16. electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom

28 Clues: electron • to treat with a buffer. • reaction noun Chemistry. • [ sol-yuh-bil-i-tee ]SHOW IPA • the state of being decomposed; decay. • rapid oxidation accompanied by heat and, usually, light. • must possess to undergo a specified reaction.' buffering • oxidation not accompanied by high temperature and light. • combination attended by the production of heat and light. • ...

Elephant Toothpaste Vocab 2025-04-29

Elephant Toothpaste Vocab crossword puzzle
Across
  1. Peroxide The chemical that decomposes
  2. Amount of space something takes up
  3. What you do to add a liquid
  4. Reaction that releases heat
  5. Helps create foam by lowering surface tension
  6. A change when chemicals combine
  7. How fast the reaction happens
  8. Worn to protect eyes during lab work
  9. A form of matter
Down
  1. Breaking down of a compound
  2. Rises during exothermic reactions
  3. Mass per unit volume
  4. Lab container used for the reaction
  5. The act of collecting data
  6. A substance used in science
  7. Substance that speeds up a reaction
  8. Used for safety when handling chemicals
  9. Bubbly substance formed in the reaction
  10. A biological catalyst sometimes used
  11. Gas released during the reaction

20 Clues: A form of matter • Mass per unit volume • The act of collecting data • Breaking down of a compound • What you do to add a liquid • Reaction that releases heat • A substance used in science • How fast the reaction happens • A change when chemicals combine • Gas released during the reaction • Rises during exothermic reactions • Amount of space something takes up • ...

Types of chemical reactions 2024-08-06

Types of chemical reactions crossword puzzle
Across
  1. refers to the loss of electrons.
  2. -Displacement reaction is a type of reaction in which two ionic compounds are mixed together.
  3. reaction is which an insoluble solid is formed during a chemical reaction.
  4. the opposite of base.
  5. reaction a reaction in which one substance is reduced and the other substance is oxidized.
  6. a reaction in which the less reactive element is displaced by a more reactive element in a chemical reaction.
  7. a reaction in which hydrocarbon reacts with oxygen to produce carbon dioxide and water.
  8. a reaction where a substance is formed as a result of chemical combination.
  9. a base that can dissolve in water.
  10. -Displacement reaction is a type of reaction where a more reactive element displaces another less reactive element from a compound.
Down
  1. a reaction where one reactants yields two or more products. It is the opposite of combination reaction.
  2. the reaction between an acid and a base.
  3. the law of .....of mass states that matter can neither be created nor destroyed.
  4. chemical .... represent the names of the reactants and the products that are written on each side of the arrow to make a word equation for the reaction.
  5. refers to the gaining of electrons.
  6. ....rules describe which compounds are soluble and which compounds are not soluble.

16 Clues: the opposite of base. • refers to the loss of electrons. • a base that can dissolve in water. • refers to the gaining of electrons. • the reaction between an acid and a base. • reaction is which an insoluble solid is formed during a chemical reaction. • a reaction where a substance is formed as a result of chemical combination. • ...

Chemistry Crossword Unit B 2017-11-12

Chemistry Crossword Unit B crossword puzzle
Across
  1. change of state from a gas to a solid
  2. catalyst involved in chemical reactions in living things
  3. invisible negatively charged particle that orbits the nucleus of an atom
  4. anything that has mass and occupies space
  5. the sum of the number of protons and neutrons in an atom
  6. change change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  7. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  8. substance that helps a chemical reaction to proceed more quickly
  9. group 17 elements in the periodic table; the most reactive non-metals
  10. number of protons in the nucleus of one atom of an element
  11. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  12. chemical reaction that releases energy
  13. orbit of electrons around the nucleus of an atom
  14. group 1 elements in the periodic table; the most reactive of the metals
  15. pure substance formed when at least one metal and one non-metal combine
Down
  1. chemical reaction that takes place in cells; food (sugar) reacts with oxygen to produce energy, water, and carbon dioxide
  2. pure substance that cannot be broken down into other substances; substance made up of only one type of atom
  3. chemical reaction that absorbs energy
  4. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons,
  5. measure of atomic mass; 1 ___ is equal to 1/12th the mass of a carbon 12 atom
  6. energy fundamental principle that energy cannot be created or destroyed
  7. shiny, malleable, ductile element that conducts electricity p
  8. ability of a substance to conduct electricity or heat
  9. a solution in which water is the solvent
  10. system an experiment in which all reactants and all products of a chemical reaction are accounted for; no substance can escape nor enter the area in which the reaction is occurring in
  11. change of state from a gas to a liquid
  12. chemical combination of two or more elements in a specific ratio

27 Clues: change of state from a gas to a solid • chemical reaction that absorbs energy • chemical reaction that releases energy • change of state from a gas to a liquid • a solution in which water is the solvent • anything that has mass and occupies space • orbit of electrons around the nucleus of an atom • ability of a substance to conduct electricity or heat • ...

chem 2021-02-08

chem crossword puzzle
Across
  1. made up of atoms and molecules it has no shape or volume
  2. one of more substances that react together
  3. solid formed out of a solution
  4. chemical substance made up of two or more identical elements
  5. reaction of an acid and a base
  6. happens when two ionic compounds are exchanged and then make two new compounds
  7. two or more products being formed in a reactant
  8. a fluid that can make the shape of its container but isn't firm like a solid
  9. numbers that come after a symbol and below
  10. substance to the left arrow
  11. measure of the chemical reactions efficiency
Down
  1. chemical reaction where one element replaces another element in a compound
  2. something that is firm in a shape
  3. representation with symbols of a chemical reaction
  4. two atoms chemically bonded
  5. substance reacts with oxygen and transfers energy around
  6. reactions that occur when two or more substances combine to form
  7. a solution where the solvent is a liquid
  8. number placed in front of a chemical symbol
  9. the substance at the end of a chemical reaction

20 Clues: two atoms chemically bonded • substance to the left arrow • solid formed out of a solution • reaction of an acid and a base • something that is firm in a shape • a solution where the solvent is a liquid • numbers that come after a symbol and below • one of more substances that react together • number placed in front of a chemical symbol • ...

Chemical Magic 2023-02-14

Chemical Magic crossword puzzle
Across
  1. the ______ points to the products.
  2. created when a chemical reaction occurs.
  3. In TGCOPE, the C stands for ________ change.
  4. In TGCOPE, the O stands for _________ change.
  5. In TGCOPE, E stands for________ release.
  6. When a chemical reaction has occurred there is a new substance with new ________.
  7. the C in CER stands for:
Down
  1. the R in CER stands for:
  2. In TGCOPE, the T stands for:
  3. In TGCOPE, the G stands for ______ produced
  4. The Law of __________ states: Atoms cannot be created or destroyed they can only be rearranged.
  5. what goes into a chemical reaction.
  6. ____________ is always and indicator of a chemical reaction.
  7. what is made after a chemical reaction.
  8. the E in CER stands for:

15 Clues: the R in CER stands for: • the E in CER stands for: • the C in CER stands for: • In TGCOPE, the T stands for: • the ______ points to the products. • what goes into a chemical reaction. • what is made after a chemical reaction. • created when a chemical reaction occurs. • In TGCOPE, E stands for________ release. • In TGCOPE, the G stands for ______ produced • ...

POK 1 Crossword- Marian Qiqieh 2017-03-15

POK 1 Crossword- Marian Qiqieh crossword puzzle
Across
  1. scale The measure of acidity or alkalinity in a substance.
  2. itself and still have the properties of that substance.
  3. The smallest particle of a compound which can normally exist
  4. An ion with a positive electric charge. An atom which has lost one or more electrons.
  5. A substance which contains hydrogen that can be replaced by a metal in solution, it turns litmus red.
  6. reaction A chemical reaction that gives off energy
  7. The way chemists write down chemical reactions,
  8. the substances formed as a result of a chemical change,
  9. reaction A chemical reaction that takes in energy
  10. A substance which alters the speed of a chemical reaction but remains chemically unchanged itself at the end of the reaction.
  11. substances that undergo chemical change
  12. energy The energy needed for a reaction to occur
  13. A charged particle, an atom or group of atoms which has lost or
Down
  1. A solid which forms and settles in a solution
  2. A substance which reacts with an acid to form a salt and water.
  3. compound A compound made up of molecules: the molecules
  4. of atoms that are linked by sharing electrons.
  5. electrons
  6. compound A compound made up of ions.
  7. combined.
  8. A way of describing the composition of a substances , using symbols and numbers
  9. A substance containing two or more elements which have been
  10. The removal of acidity or alkalinity in a substance.
  11. An ion with a negative electric charge. An atom which has gained one or more electrons.

24 Clues: electrons • combined. • compound A compound made up of ions. • substances that undergo chemical change • A solid which forms and settles in a solution • of atoms that are linked by sharing electrons. • The way chemists write down chemical reactions, • energy The energy needed for a reaction to occur • reaction A chemical reaction that takes in energy • ...

Chemistry 2021-08-30

Chemistry crossword puzzle
Across
  1. held energy
  2. substance dispersed in another substance
  3. tastes bitter
  4. total number of protons and neutrons
  5. transformation of one substance to another
  6. motion energy
  7. symbolic representation of a reaction
  8. right side of a chemical equation
  9. H2O
  10. smallest unit of ordinary matter
  11. 0-7 acid and 7-14 base
  12. differ in nucleon numbers
Down
  1. surrounding area gets warmer
  2. subatomic particle with a neutral charge
  3. special type of mixture
  4. more than one atom held together by bonds
  5. subatomic particle with a negative charge
  6. surrounding area gets colder
  7. uneven number of protons and electrons
  8. substances not chemically combined
  9. number of protons found in that element
  10. pure substance consisting only of atoms
  11. positively charged central core of an atom
  12. left side of a chemical equation
  13. subatomic particle with a positive charge
  14. more than one element held together by bonds
  15. tastes sour

27 Clues: H2O • held energy • tastes sour • tastes bitter • motion energy • 0-7 acid and 7-14 base • special type of mixture • differ in nucleon numbers • surrounding area gets warmer • surrounding area gets colder • left side of a chemical equation • smallest unit of ordinary matter • right side of a chemical equation • substances not chemically combined • total number of protons and neutrons • ...

Chemistry of Life Crossword 2023-11-09

Chemistry of Life Crossword crossword puzzle
Across
  1. (two words) the breaking and forming of bonds between different substances during chemical changes
  2. main function is short-term energy storage
  3. Endothermic reactions ______ energy
  4. large organic molecules that make up all living things
  5. (two words) the amount of energy needed to make a chemical reaction start
  6. where we find nucleic acids
  7. substances that are made by a chemical reaction
  8. the number of phosphate groups in ATP
  9. (two words) the macromolecule we get from our parents
Down
  1. functions include insulation, protection, and structure
  2. (two words)where a reactant binds to an enzyme
  3. a special lipid with a hydrophilic head and hydrophobic tail
  4. the substances that are changed during a chemical reaction
  5. exothermic reactions _____ energy
  6. the number of levels to protein structures
  7. macromolecule that has no main function
  8. polymers are made out of _______
  9. Adenosine Triphosphate is also known as what?
  10. proteins that speed up chemical reactions
  11. a reaction with an enzyme needs ______ activation energy

20 Clues: where we find nucleic acids • polymers are made out of _______ • exothermic reactions _____ energy • Endothermic reactions ______ energy • the number of phosphate groups in ATP • macromolecule that has no main function • proteins that speed up chemical reactions • main function is short-term energy storage • the number of levels to protein structures • ...

Chemistry Vocabulary Crossword Puzzle 2020-11-11

Chemistry Vocabulary Crossword Puzzle crossword puzzle
Across
  1. a chemical reaction that absorbs heat
  2. substance that does the dissolving in a chemical solution
  3. chemical bond between atoms caused by an electrostatic force in opposite charged ions
  4. expression which states the number and types of atoms in a molecule
  5. part of the atomic nucleus that has a charge of +1
  6. chemical species formed when two or more elements form a chemical bond
  7. a substance that cannot be subdivided and is identified by the number of protons in its atoms
  8. chemical mass unit equal to Avogadro's number
  9. any element found in the last column of the periodic table
  10. part of the atomic nucleus that has a charge of -1
  11. whole number that is the sum of protons and neutrons in the atomic nucleus
  12. outer electron that is most likely to participate in a bond formation or a chemical reaction
  13. part of the atomic nucleus that has a charge of 0
  14. measure of hydrogen ion in a solution showing the acidity or basicity of a substance
  15. a chemical species that accepts protons
  16. chemical bond between atoms where electrons are more or less evenly shared
Down
  1. a chemical reaction that releases heat
  2. the arrangement of elements by increase of their atomic number
  3. homogenous mixture of two or more substances
  4. atoms that have the same number of protons but different amount of neutrons changing its atomic weight
  5. the number of protons in the nucleus of an atom of an element
  6. a chemical species that donates protons
  7. any element found in the 1st column of the periodic table
  8. substance that is dissolved in a chemical solution
  9. substance formed as a result of a chemical reaction
  10. starting material for a chemical reaction
  11. any element found in the 2nd column of the periodic table
  12. the ability to do work

28 Clues: the ability to do work • a chemical reaction that absorbs heat • a chemical reaction that releases heat • a chemical species that donates protons • a chemical species that accepts protons • starting material for a chemical reaction • homogenous mixture of two or more substances • chemical mass unit equal to Avogadro's number • ...

CHEMICAL REACTIONS 2026-01-11

CHEMICAL REACTIONS crossword puzzle
Across
  1. The principle that matter is neither created nor destroyed in a chemical reaction (12,2,4)
  2. A process in which reactants change into products
  3. A gas produced during respiration (6,7)
  4. A compound used as a fuel for respiration in living organisms
  5. The substances that take part in a chemical reaction and are used up
Down
  1. A chemical reaction in living cells that releases energy from glucose using oxygen
  2. Another word for ‘produces,’ indicated by → in a chemical equation
  3. A reaction in plants that uses light energy to convert carbon dioxide and water into glucose and oxygen
  4. Describes a chemical equation with the same number of each type of atom on both sides
  5. The calculation of quantities of reactants and products in a chemical reaction
  6. The number placed in front of a chemical formula that can be changed to balance an equation
  7. A compound made of hydrogen and carbon often used as a fuel
  8. The substances formed as a result of a chemical reaction
  9. A reaction in which a substance reacts with oxygen usually releasing heat and light

14 Clues: A gas produced during respiration (6,7) • A process in which reactants change into products • The substances formed as a result of a chemical reaction • A compound made of hydrogen and carbon often used as a fuel • A compound used as a fuel for respiration in living organisms • Another word for ‘produces,’ indicated by → in a chemical equation • ...

Energy flow between organisms 2025-03-21

Energy flow between organisms crossword puzzle
Across
  1. A type of sugar that is produced from photosynthesis.
  2. The chemical that absorbs the sunlight.
  3. The site where photosynthesis occurs.
  4. Indicates the number of molecules involved in a chemical reaction.
  5. A process in which plants and animal convert food (glucose) into energy (ATP) needed for cells to function.
  6. A byproduct of photosynthesis that is needed for cellular respiration.
  7. The tiny structures that help cells carry out processes to stay alive.
  8. The main source of energy.
Down
  1. A gas that plants need for photosynthesis.
  2. The process in which plants convert sunlight to chemical energy (glucose).
  3. The results that a chemical reaction produces.
  4. The secondary product of a chemical reaction
  5. The energy molecule that is produced from cellular respiration.
  6. A mineral that plants absorb through their roots.
  7. The site where cellular respiration occurs.
  8. The ingredients needed for a chemical reaction to occur.
  9. A series of steps taken in order to achieve a particular result.
  10. The light color that is reflected from chlorophyll.
  11. All chemical reactions that occur within an organism to stay alive.

19 Clues: The main source of energy. • The site where photosynthesis occurs. • The chemical that absorbs the sunlight. • A gas that plants need for photosynthesis. • The site where cellular respiration occurs. • The secondary product of a chemical reaction • The results that a chemical reaction produces. • A mineral that plants absorb through their roots. • ...

Science Chapter 5 vocab 2020-02-12

Science Chapter 5 vocab crossword puzzle
Across
  1. thousands of biological catalysts.
  2. a solid that forms from liquids in a chemical change
  3. matter does not leave or enter
  4. change in matter that makes a substance into a other substance
  5. a law that states that during a chemical reaction matter is not destroyed or created.
  6. when compounds break down into simpler products
  7. When two or more elements or compounds combine to make a more complex substance
  8. when one element take the place of another element or if two different compounds trade.
  9. the amount of a substance in a given volume.
  10. energy minimum amount of energy needed to start a chemical reaction.
Down
  1. the energy released as the products form is greater than the required energy to break it.
  2. The energy to break it is is greater than the energy that is released by the formation of the product
  3. New substances that are made
  4. Any change to the substance that does not change it to another substance
  5. A way to show a chemical reaction using symbols
  6. is a number placed in front of a chemical formula
  7. Substances that gone through a chemical change
  8. A material used to decrease the rate of a chemical reaction
  9. matter can enter from or escape to the surroundings
  10. increases the reaction rate by lowering the activation energy needed.

20 Clues: New substances that are made • matter does not leave or enter • thousands of biological catalysts. • the amount of a substance in a given volume. • Substances that gone through a chemical change • A way to show a chemical reaction using symbols • when compounds break down into simpler products • is a number placed in front of a chemical formula • ...

Chemistry Crossword 2015-11-19

Chemistry Crossword crossword puzzle
Across
  1. Change of state from a gas to liquid.
  2. Description of a substance that can be pounded or rolled into sheet.
  3. Shiny, malleable, ductile element that conducts electricity.
  4. Substance that strongly resist the flow of electricity.
  5. Chemical reaction that absorb energy.
  6. The smallest part of an element that is representative of that element.
  7. Measure of atomic mass.
  8. Vertical column of element in the periodic table.
  9. Chemical combination of two or more elements in a specific ratio.
  10. Change of state from a liquid to gas.
  11. Change of state from solid to liquid.
Down
  1. Chemical reaction that takes place in cell.
  2. Ability to work.
  3. Catalyst involved in a chemical reaction in living things.
  4. Change of state from a gas to solid.
  5. Slow chemical change that occurs when oxygen in the air reacts with a metal.
  6. Number of protons in the nucleus of one atom of an element.
  7. Group 17 elements in the periodic table.
  8. Invisible negatively charged particle that orbits the nucleus of an atom.
  9. A material that that electric charge can move through easily.
  10. Chang of state from a liquid to solid.
  11. Anything that has mass and occupies space.
  12. Substance that helps a chemical reaction to proceed more quickly.
  13. Chemical reaction that releases energy.
  14. Amount of mass in a given volume of a substance.

25 Clues: Ability to work. • Measure of atomic mass. • Change of state from a gas to solid. • Change of state from a gas to liquid. • Chemical reaction that absorb energy. • Change of state from a liquid to gas. • Change of state from solid to liquid. • Chang of state from a liquid to solid. • Chemical reaction that releases energy. • Group 17 elements in the periodic table. • ...

Adjectives in Chemistry 2022-06-23

Adjectives in Chemistry crossword puzzle
Across
  1. is used to describe the chemicals involve in the chemical reaction.
  2. atoms exist in inorganic compounds.
  3. is the total of the atomic weights of all the elements in a compound.
  4. is substance that are not acidic or basic.
  5. is a stable chemical that does not produce chemical reaction.
  6. chemical reaction that release heat.
  7. substances react instantly with other chemicals.
Down
  1. substances are very dangerous and acidic.
  2. is chemical reactions that occurs naturally.
  3. compounds contains carbon atoms.
  4. reactions where chemicals don'react with each other.
  5. chemical reaction that absorb heat.
  6. is a sour substance.
  7. is a bitter substance.
  8. reactions where chemicals react strongly with each other.

15 Clues: is a sour substance. • is a bitter substance. • compounds contains carbon atoms. • chemical reaction that absorb heat. • atoms exist in inorganic compounds. • chemical reaction that release heat. • substances are very dangerous and acidic. • is substance that are not acidic or basic. • is chemical reactions that occurs naturally. • ...

Chemistry Vocabulary Crossword Puzzle 2020-11-11

Chemistry Vocabulary Crossword Puzzle crossword puzzle
Across
  1. a chemical reaction that absorbs heat
  2. substance that does the dissolving in a chemical solution
  3. chemical bond between atoms caused by an electrostatic force in opposite charged ions
  4. expression which states the number and types of atoms in a molecule
  5. part of the atomic nucleus that has a charge of +1
  6. chemical species formed when two or more elements form a chemical bond
  7. a substance that cannot be subdivided and is identified by the number of protons in its atoms
  8. chemical mass unit equal to Avogadro's number
  9. any element found in the last column of the periodic table
  10. part of the atomic nucleus that has a charge of -1
  11. whole number that is the sum of protons and neutrons in the atomic nucleus
  12. outer electron that is most likely to participate in a bond formation or a chemical reaction
  13. part of the atomic nucleus that has a charge of 0
  14. measure of hydrogen ion in a solution showing the acidity or basicity of a substance
  15. a chemical species that accepts protons
  16. chemical bond between atoms where electrons are more or less evenly shared
Down
  1. a chemical reaction that releases heat
  2. the arrangement of elements by increase of their atomic number
  3. homogenous mixture of two or more substances
  4. atoms that have the same number of protons but different amount of neutrons changing its atomic weight
  5. the number of protons in the nucleus of an atom of an element
  6. a chemical species that donates protons
  7. any element found in the 1st column of the periodic table
  8. substance that is dissolved in a chemical solution
  9. substance formed as a result of a chemical reaction
  10. starting material for a chemical reaction
  11. any element found in the 2nd column of the periodic table
  12. the ability to do work

28 Clues: the ability to do work • a chemical reaction that absorbs heat • a chemical reaction that releases heat • a chemical species that donates protons • a chemical species that accepts protons • starting material for a chemical reaction • homogenous mixture of two or more substances • chemical mass unit equal to Avogadro's number • ...

Checmical Reactions Crossword 2025-08-20

Checmical Reactions Crossword crossword puzzle
Across
  1. When a chemical reaction occurs ______ is transferred to or from the surroundings. [6]
  2. A substance made of two or more different atoms chemical joined. [8]
  3. A type of reaction that may produce a colour change, a gas or a new solid. [8,8]
  4. Safety equipment used to protect the eyes. [6,7]
  5. Reacts with oxygen/burning. [10]
  6. Two substances joining to make one. [9]
  7. A chemical _________ shows how many atoms are in a compound, often uses symbols. [7]
  8. A possible source of danger. [6]
  9. A type of reaction where elements swap places. [12]
Down
  1. A type of chemical reaction where you cannot get back the substances you started with. [12]
  2. A reactions which gives out energy to the surroundings. [10]
  3. One substance breaks down into two or more substances. [13]
  4. The substances that are produced by a chemical reaction. [8]
  5. A reaction which takes in energy from the surroundings. [11]
  6. The chemicals that react together in a chemical reaction. [9]

15 Clues: Reacts with oxygen/burning. [10] • A possible source of danger. [6] • Two substances joining to make one. [9] • Safety equipment used to protect the eyes. [6,7] • A type of reaction where elements swap places. [12] • One substance breaks down into two or more substances. [13] • A reactions which gives out energy to the surroundings. [10] • ...

Bonus Points U5F1 2022-02-22

Bonus Points U5F1 crossword puzzle
Across
  1. The speed at which a chemical reaction occurs
  2. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
  3. any chemical substance produced during the conversion of some reactant to a product
  4. when energy is taken from the surroundings
  5. the outside part or uppermost layer of something
  6. a state of anxiety or nervous excitement.
Down
  1. reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
  2. a reaction in which products are produced from reactants and it goes from left to right in a reversible reaction.
  3. the branch of physical chemistry that is concerned with understanding how fast or how slow chemical reactions occur
  4. the sum of the internal energy and the product of the pressure and volume of a thermodynamic system.
  5. coordinate diagram a graph that plots energyversus reaction progress
  6. a substance that delays, slows or prevents a chemical reaction
  7. is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative
  8. quantitative measure of how hot or cold something is
  9. any substance that increases the rate of a reaction without itself being consumed
  10. eat absorbed or evolved (or the change in enthalpy) in any chemical reaction is a fixed quantity

16 Clues: a state of anxiety or nervous excitement. • when energy is taken from the surroundings • The speed at which a chemical reaction occurs • the outside part or uppermost layer of something • quantitative measure of how hot or cold something is • a substance that delays, slows or prevents a chemical reaction • ...

Physical and Chemical Changes, Chemical Reactions and Phase Changes 2025-09-17

Physical and Chemical Changes, Chemical Reactions and Phase Changes crossword puzzle
Across
  1. properties of substances that can be observed without changing the identity of a substance are known as ___properties
  2. a reaction that absorbs energy
  3. a reaction that releases energy
  4. phase change from a liquid to a solid
  5. substances that exist before a chemical reaction
  6. phase change from a gas to a liquid
  7. what the reactants turn into
  8. state of matter with a definite volume but no definite shape
  9. a change in which the identity of the substance does NOT change
Down
  1. name given to a new solid produced in a chemical reaction
  2. energy that is transferred from a warmer thing to cooler things
  3. phase change from a solid to a liquid
  4. an energy ___ is a sign of a chemical reaction; light is produced or a temperature change occurs
  5. chemical ___ are ways to represent chemical reactions
  6. state of matter with no definite shape or volume
  7. anything that has mass and takes up space
  8. a change in which the identity of the substance DOES change
  9. bubbling is a sign that a ___ is being produced during a chemical reaction
  10. properties of substances that can only be observed by changing the identity of a substance are known as ___ properties
  11. state of matter with definite shape and volume

20 Clues: what the reactants turn into • a reaction that absorbs energy • a reaction that releases energy • phase change from a gas to a liquid • phase change from a solid to a liquid • phase change from a liquid to a solid • anything that has mass and takes up space • state of matter with definite shape and volume • state of matter with no definite shape or volume • ...

Chemistry Crossword 2015-11-19

Chemistry Crossword crossword puzzle
Across
  1. chemical combination of two or more elements in a specific ratio
  2. a substance that helps a chemical reaction that proceed more quickly
  3. group 18 on the periodic table
  4. substance made of only one kind of matter
  5. an organic catalyst
  6. most reactive non meta
  7. a chemical that releases heat
  8. positively charged particle
  9. a combination of symbols that represent a compound
  10. a reaction that takes place when two or more substances react to make a new substance
  11. negatively charged particle
  12. atomic number 8 on the periodic table
  13. the horizontal column on the periodic table
  14. an atom that has been electrically charged
Down
  1. an element with both metal and non metal properties
  2. most stable and nonreactive elements
  3. the result of a chemical reaction when a new substance is formed
  4. vertical column of elements on the periodic table
  5. two nonmetals combined
  6. slow chemical change that occurs when oxygen in the air reacts with metals
  7. how many protons are in the nucleus
  8. neutral
  9. a chemical reaction that absorbs energy
  10. two metals combined
  11. a solution in which water is the solvent

25 Clues: neutral • an organic catalyst • two metals combined • two nonmetals combined • most reactive non meta • positively charged particle • negatively charged particle • a chemical that releases heat • group 18 on the periodic table • how many protons are in the nucleus • most stable and nonreactive elements • atomic number 8 on the periodic table • a chemical reaction that absorbs energy • ...

Unit 2 Extra Credit Crossword Puzzle 2023-11-01

Unit 2 Extra Credit Crossword Puzzle crossword puzzle
Across
  1. Property of water where water sticks to other molecules
  2. Lipid that makes up the cell membrane
  3. The building block of proteins
  4. Bond that forms between water molecules
  5. The type of fat that is liquid at room temperature
  6. Location where an enzyme binds to the substrate
  7. Something that speeds up chemical reactions
  8. When we combine monomers, we get a...
  9. Name for all molecules building blocks
  10. The polymer of carbs
  11. Polymer of proteins
  12. Macromolecule that provides organisms with quick energy
  13. Carbohydrate made up of only two rings
Down
  1. Energy required to start a chemical reaction
  2. Raw materials of a chemical reaction
  3. Chemical reaction that breaks large molecules down
  4. The type of fat that is solid at room temperature
  5. Molecule that is considered a 'protein catalyst'
  6. Molecule with the chemical formula H2O
  7. Lipid made of glycerol and three fatty acid chains
  8. Property of water where water sticks to other water molecules
  9. Results of a chemical reaction
  10. Macromolecule that provides organisms with structure, defense, and enzymes
  11. Macromolecule that provides organisms with long term energy

24 Clues: Polymer of proteins • The polymer of carbs • The building block of proteins • Results of a chemical reaction • Raw materials of a chemical reaction • Lipid that makes up the cell membrane • When we combine monomers, we get a... • Molecule with the chemical formula H2O • Name for all molecules building blocks • Carbohydrate made up of only two rings • ...

biomolecules vocab choice board 2024-05-01

biomolecules vocab choice board crossword puzzle
Across
  1. a simple molecule with two or more binding sites through which it forms covalent linkages with other monomer molecules to form the macromolecule.
  2. a molecule that has nitrogen and chemical properties of a base.
  3. A chemical element that's stable and adaptable
  4. molecules that are long-chained and polymeric
  5. A chemical compound that’s in biotic organisms.
  6. A natural compound that occurs, or a imatitive of a compound
  7. a molecule that enzymes react with
  8. Molecules that are living and insoluble in insoluble in water
Down
  1. large organic compounds that are essential to lives
  2. substances made by the cells of animals and plants.
  3. the minimum energy amount that’s needed to activate atoms and molecules to a condition where chemical transformation or physical transport can occur.
  4. a chemical reaction when water is mainly used to break down chemical bonds substances
  5. substances that participate in a chemical reaction to form a product
  6. a substance that can increase the rate of chemical reactions without being consumed and changed by the reacting chemicals is called a catalyst.
  7. building blocks of fat in our bodies and the food that we eat.
  8. Where the chemical reaction occurs in a antibody or enzyme
  9. a substance that’s formed as the result of a chemical reaction.
  10. big molecules made of monomers
  11. a sugar biological molecule, also in DNA
  12. Molecules that can be put together and create proteins.

20 Clues: big molecules made of monomers • a molecule that enzymes react with • a sugar biological molecule, also in DNA • molecules that are long-chained and polymeric • A chemical element that's stable and adaptable • A chemical compound that’s in biotic organisms. • large organic compounds that are essential to lives • substances made by the cells of animals and plants. • ...

Chemical Reactions Vocabulary 2024-02-25

Chemical Reactions Vocabulary crossword puzzle
Across
  1. a reaction that absorbs heat
  2. a way of showing how many of each atom are in a molecule
  3. a bond between a metal and electrons that involves moving electrons
  4. a positively charged subatomic particle found in the nucleus of the atom
  5. changing a chemical into a new chemical
  6. the study of the properties and behavior of matter
  7. what you end with in a chemical reaction
  8. a reaction that has the same number of each atom in the reactants and products
  9. a bond between nonmetals that involves sharing electrons
  10. the smallest particle of a chemical element that can exist
Down
  1. a reaction that releases heat
  2. either solid, liquid, or gas
  3. what you start with in a chemical reaction
  4. a negatively charged subatomic particle found orbiting the nucleus of the atom
  5. a table of elements organized by atomic number
  6. a measurement of acidity or basicity of a chemical
  7. a neutrally charged subatomic particle found in the nucleus of the atom

17 Clues: a reaction that absorbs heat • either solid, liquid, or gas • a reaction that releases heat • changing a chemical into a new chemical • what you end with in a chemical reaction • what you start with in a chemical reaction • a table of elements organized by atomic number • a measurement of acidity or basicity of a chemical • ...

Chapter 7 & 13 Crossword 2023-05-02

Chapter 7 & 13 Crossword crossword puzzle
Across
  1. increases the rate of a chemical reaction
  2. A substance that is added to create a chemical reaction
  3. A breakdown of a chemical
  4. A chemical reaction in the form of symbols or formulas
  5. The amount of a substance
  6. Home of the Spartans
  7. an upward force that is exerted by a fluid
  8. a process that releases energy from the system to its surroundings
  9. A substance mass per unit of volume ( D= M/V)
  10. a process that absorbs heat
  11. One of something
Down
  1. The artificial execution of a chemical reaction to get one or more products
  2. a room in a school where students are taught at
  3. A species that is created from chemical reactions
  4. The distance between the top and bottom of something
  5. Words that don’t make sense or don’t have a meaning
  6. A number that is placed in front of a formula, can be used to balance equations
  7. A time period that is after noon
  8. A force produced by the motion of a fluid past an object
  9. two of something
  10. A liquid or a gas that flows

21 Clues: two of something • One of something • Home of the Spartans • A breakdown of a chemical • The amount of a substance • a process that absorbs heat • A liquid or a gas that flows • A time period that is after noon • increases the rate of a chemical reaction • an upward force that is exerted by a fluid • A substance mass per unit of volume ( D= M/V) • ...

Changes in matter vocabulary 2025-04-23

Changes in matter vocabulary crossword puzzle
Across
  1. noting or pertaining to a chemical change
  2. very small particle
  3. A substance that starts or speeds up a chemical reaction
  4. the measurement of matter
  5. A ... happens when you mix chemicals together
  6. reactions of the chemical elements and the compounds they form
  7. A composition of two or more substances that are not chemically combined
  8. A substance consisting of atoms or ions of two or more different elements
Down
  1. A number or quantity obtained by multiplication
  2. transfer heat energy to another physical system
  3. A force of attraction that holds atoms or ions together in a molecule or crystal
  4. a chemical reaction that absorbs heat
  5. The force of attraction that holds molecules
  6. Internal energy that is transferred to a physical system from outside the system
  7. A substance participating in a chemical reaction
  8. solid, liquid, or gas
  9. combinations of neutrons and protons
  10. ... lets you have power
  11. A substance that cannot be broken down into simpler substances by chemical
  12. The amount of space occupied by a three-dimensional object or region of space

20 Clues: very small particle • solid, liquid, or gas • ... lets you have power • the measurement of matter • combinations of neutrons and protons • a chemical reaction that absorbs heat • noting or pertaining to a chemical change • The force of attraction that holds molecules • A ... happens when you mix chemicals together • A number or quantity obtained by multiplication • ...

Unit 6 & 7 Vocabulary Crossword 2013-12-04

Unit 6 & 7 Vocabulary Crossword crossword puzzle
Across
  1. Reactant Reactant that remains after the chemical reaction stops
  2. ABA+B
  3. Yield Maximum amount of product that can be produced from a given amount of reactant
  4. Absorbs heat
  5. Energy Minimum amount of energy required to start a chemical reaction
  6. Ratio Ratio between the numbers of moles of any two substances
  7. Replacement AB+CD AD+BC
  8. A+B AB
  9. by Mass Percentage determined by ratio of the mass of each element to the total mass of the compound
  10. of Conservation of Mass States that matter cannot be created nor destroyed
Down
  1. Replacement A+BCAC+B
  2. Study of quantitative relationships between the amount of reactants used and the products formed
  3. Reactant Reactant totally consumed during a chemical reaction
  4. Releases heat
  5. mass Mass of 1 mole of a substance
  6. C H+OCO2+H2O
  7. Increases rate of a chemical reaction
  8. Yield Amount of product produced when a chemical reaction is carried out

18 Clues: ABA+B • A+B AB • Absorbs heat • Releases heat • C H+OCO2+H2O • Replacement A+BCAC+B • Replacement AB+CD AD+BC • mass Mass of 1 mole of a substance • Increases rate of a chemical reaction • Reactant Reactant totally consumed during a chemical reaction • Ratio Ratio between the numbers of moles of any two substances • ...

chapter 8 2012-07-26

chapter 8 crossword puzzle
Across
  1. The binding of a regulatory molecule to a protein
  2. A spontaneous chemical reaction/ a net release of free energy
  3. A non-spontaneous chemical reaction/ free energy absorbed
  4. The energy that matter possesses as a result of its location
  5. A macromolecule serving as a catalyst, usually a protein
  6. A series of chemical reactions that breaks down molecules
  7. Anabolic pathway or catabolic pathway
  8. The magnitude of a cell's membrane voltage at equilibrium
Down
  1. A chemical agent that increases reaction without being consumed
  2. The study of energy transformations that occur in matter
  3. A series of chemical reactions that builds a complex molecule
  4. Releases free energy to drive endergonic reaction in cells
  5. A measure of disorder or randomness
  6. Any non-protein molecule or ion required for proper enzyme function
  7. Splitting macromolecules by the enzymatic addition of water
  8. Energy available in molecules for release in a chemical reaction
  9. The energy associated with the relative motion of objects

17 Clues: A measure of disorder or randomness • Anabolic pathway or catabolic pathway • The binding of a regulatory molecule to a protein • The study of energy transformations that occur in matter • A macromolecule serving as a catalyst, usually a protein • A non-spontaneous chemical reaction/ free energy absorbed • A series of chemical reactions that breaks down molecules • ...

Redox Reaction 2020-07-02

Redox Reaction crossword puzzle
Across
  1. cell System in which there's an electric current flowing while a chemical reaction occurs.
  2. Oxidation________ electrons
  3. Metal that can prevent rusting
  4. Site which oxidation or reduction:anode and cathode
  5. Oxidizing agent
  6. Where oxidation occur
  7. Gain of electrons and the loss of oxidation number
  8. _______Oxidation number
  9. Electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons.
  10. Reaction that shows either oxidation or reduction portion of a redox reaction.
Down
  1. Number assign to keep track of electron gain or loss redox reaction
  2. Itself oxidized
  3. Part of a voltaic cell that connects two containers and allow flow of ions.
  4. Oxidation__________ hydrogen
  5. Reduction_______ electrons
  6. Cell that requires a non spontaneous chemical reaction occur(uses battery)
  7. An oxidation-reduction reaction
  8. Particle in redox reaction

18 Clues: Itself oxidized • Oxidizing agent • Where oxidation occur • _______Oxidation number • Reduction_______ electrons • Particle in redox reaction • Oxidation________ electrons • Oxidation__________ hydrogen • Metal that can prevent rusting • An oxidation-reduction reaction • Gain of electrons and the loss of oxidation number • Site which oxidation or reduction:anode and cathode • ...

MIKE INCORVAIA CHAPTER 13 mr burkholder 2016-10-11

MIKE INCORVAIA CHAPTER 13 mr burkholder crossword puzzle
Across
  1. a rapid exothermic oxidation
  2. a reaction between an acid and a base
  3. Substance that donates hydrogen ions
  4. polyatomic ion made by adding a proton to a water molecule
  5. polyatomic ion made by removing a proton from a water molecule
  6. chemical reaction in which there is a net absorption
  7. deterioration of metal
  8. chemical reaction which there is a net release
  9. accepts hydrogen ions
Down
  1. concentration is higher than the hydronium ion concentration
  2. the minimal energy for for a chemical reaction to proceed
  3. reactant loses one or more electrons
  4. behave as either an acid or a base
  5. new materials formed in a chemical reaction
  6. the reacting substances in a chemical change

15 Clues: accepts hydrogen ions • deterioration of metal • a rapid exothermic oxidation • behave as either an acid or a base • Substance that donates hydrogen ions • reactant loses one or more electrons • a reaction between an acid and a base • new materials formed in a chemical reaction • the reacting substances in a chemical change • chemical reaction which there is a net release • ...

Module 1 revision 2019-11-06

Module 1 revision crossword puzzle
Across
  1. H2SO4
  2. A chemical which has a pH less than 7
  3. A type of reaction where the chemical breaks down with heating
  4. NH3
  5. Cl-
  6. A scale that shows the strength of acids and alkalis
  7. A reaction between acids and alkalis which react together to make a solution of water at pH 7
  8. HCl
  9. SO42-
  10. A reaction that gives out energy to the surroundings
  11. This is the particle that is alkali eg OH-
Down
  1. A dye which changes colour depending on whether it is added to an acid or an alkali
  2. NaOH
  3. CO32-
  4. A reaction that takes in energy from the surroundings
  5. HNO3
  6. This is the particle that is acid eg H+
  7. NO3-
  8. A substance that speeds up the rate of a reaction
  9. A chemical which has a pH more than 7

20 Clues: NH3 • Cl- • HCl • NaOH • HNO3 • NO3- • CO32- • H2SO4 • SO42- • A chemical which has a pH less than 7 • A chemical which has a pH more than 7 • This is the particle that is acid eg H+ • This is the particle that is alkali eg OH- • A substance that speeds up the rate of a reaction • A scale that shows the strength of acids and alkalis • A reaction that gives out energy to the surroundings • ...

Law of Conservation of Mass 2022-02-10

Law of Conservation of Mass crossword puzzle
Across
  1. The numbers behind chemical symbols
  2. and environment where matter can enter or escape
  3. A chemical equation with the same number of atoms in each element on the sides of the equation
  4. a part or aspect of something abstract, especially one that is essential or characteristic.
  5. A group of atoms bonded together is a _______
  6. _________ are what you have at the end of a chemical reaction
  7. when the total mass of the reactant is equal to the mass of the product the equation is _________
  8. Mass can also be called ________
  9. during a chemical reaction matter cannot be created or destroyed
  10. 2 or more substances combine to form a new compound
Down
  1. 1 element replaces another element in a compound
  2. The substances present before the reaction occurs
  3. Mass cannot be _________ or destroyed
  4. an environment where matter cannot enter or escape
  5. burning wood, rust, campfire are examples of a
  6. A chemical reaction that requires heat
  7. a single unit of a pure substance, or "element".
  8. a compound decomposes into 2 or more simpler substances
  9. The numbers in front of chemical symbols
  10. What does the arrow mean in a chemical equation?

20 Clues: Mass can also be called ________ • The numbers behind chemical symbols • Mass cannot be _________ or destroyed • A chemical reaction that requires heat • The numbers in front of chemical symbols • A group of atoms bonded together is a _______ • burning wood, rust, campfire are examples of a • 1 element replaces another element in a compound • ...

enzyme 2026-03-04

enzyme crossword puzzle
Across
  1. ENERGY:The energy required to start any reaction
  2. chemical reaction that absorbs free energy from the surroundings,
  3. synthesis of complex molecules from simpler ones, which requires an input of energy
  4. in the active site, the chemical reaction can take place.
  5. chemical reaction that releases free energy to the surroundings
  6. substance that is formed as a result of a chemical reaction
  7. KEY: The substrate molecules fit perfectly into active site, like a key in a lock.
Down
  1. breakdown of complex molecules into simpler ones, releasing energy in the process
  2. reduce or stop the enzyme from functioning. Reducing enzyme
  3. cofactors
  4. also reduces the reaction rate.
  5. substance that enters and is consumed in a chemical reaction
  6. the totality of an organism's chemical reactions
  7. FIT: a flexible active site that changes shape, or conforms, to the substrate as they bond together

14 Clues: cofactors • also reduces the reaction rate. • ENERGY:The energy required to start any reaction • the totality of an organism's chemical reactions • in the active site, the chemical reaction can take place. • reduce or stop the enzyme from functioning. Reducing enzyme • substance that is formed as a result of a chemical reaction • ...

Chemistry Crossword 2017-11-07

Chemistry Crossword crossword puzzle
Across
  1. a material that electric charge can move through easily
  2. description of a solid that can be stretched into a long wire
  3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  4. reaction that takes place when two or more substances react to form new substances
  5. table in which the elements are organized by their physical and chemical properties
  6. pure substance formed when non-metals combine
  7. chemical reaction that releases energy
  8. pure substance that cannot be broken down into other substances; substance made up of only one type of atom
  9. group 17 elements in the periodic table; the most reactive non-metals
  10. property that describes the physical appearance and composition of a substance
  11. substance that reacts with another substance or substances in a chemical reaction to create new substances with different property
  12. gases group 18 elements in the periodic table;the most stable and nonreactive elements
Down
  1. slow chemical change that occurs when oxygen in the air reacts with a metal
  2. chemical reaction that absorbs energy
  3. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  4. ability of a substance to conduct electricity or heat
  5. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when chemical change occurs
  6. energy stored in chemicals and released when chemicals react; a form of potential or stored energy
  7. dull, brittle element that does not conduct electricity
  8. substance that helps a chemical reaction to proceed more quickly
  9. (CO(g))colorless, odorless gas;produced by incomplete combustion of chemicals containing carbon (e.g. hydrocarbons); major source: motor vehicles
  10. Workplace Hazardous Materials Information System; a system of easy-to-see warning symbols on hazardous materials
  11. change in the appearance or state of a substance that does not change the composition
  12. catalyst involved in chemical reaction in living things
  13. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones

25 Clues: chemical reaction that absorbs energy • chemical reaction that releases energy • pure substance formed when non-metals combine • ability of a substance to conduct electricity or heat • a material that electric charge can move through easily • dull, brittle element that does not conduct electricity • catalyst involved in chemical reaction in living things • ...

VOCABULARY CHEMICAL MATTERS. 2024-10-31

VOCABULARY CHEMICAL MATTERS. crossword puzzle
Across
  1. Mass in grams of one mole of a substance.
  2. A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
  3. Gain of electrons.
  4. Is a substance that is formed as the result of a chemical reaction.
  5. A process in which one or more substances, the reactants, are converted to one or more different substances called the products.
  6. Loss of electrons.
  7. of reaction: The speed at which reactants are converted in products.
  8. For any system closed to all transfers of matter and energy, the mass of the system must remain constant overtime, as systems mass cannot change, so quantity cannot be added or removed.
  9. A substance that takes part in and undergoes chase during a reaction.
Down
  1. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
  2. A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in molecule is written in this manner
  3. is a chemical equation with the same number of atoms of each element on both sides of the arrow.
  4. is the number in front of the formula, that is related to the properties of the products. For example 2 H20 means there are two molecules of water.
  5. A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
  6. of a substance that contains 6.02x10^23 particles of that substance.
  7. reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature.
  8. A chemical reaction that releases energy in the form of light or heat.
  9. A substance that increases in the rate of a chemical reaction without itself undergoing any permanent chemical change.

18 Clues: Gain of electrons. • Loss of electrons. • Mass in grams of one mole of a substance. • Is a substance that is formed as the result of a chemical reaction. • of a substance that contains 6.02x10^23 particles of that substance. • of reaction: The speed at which reactants are converted in products. • A substance that takes part in and undergoes chase during a reaction. • ...

Chemical Reactions 2017-05-03

Chemical Reactions crossword puzzle
Across
  1. / organic group which has one or more electrons available for bonding
  2. / negatively charged ion
  3. / multiplicative factor
  4. / substance that changes the rate of a chemical reaction without being consumed or changed
  5. / released when a chemical compound reacts to produce new compounds
  6. / molecular ion with two or more atoms covalently bonded
  7. / all the diatomic elements Hydrogen, oxygen, fluorine, bromine, iodine, nitrogen, and chlorine
  8. / chemical process which requires heat
Down
  1. / consisting of two atoms
  2. / nonconductive element which lacks luster
  3. / being the same in quantity
  4. / chemical reaction in which heat is released
  5. / any chemical change in which one species is oxidized (loses an electron)
  6. / solid that is produced as a result of a chemical reaction in a solution
  7. / positively charged ion
  8. / oxidation reaction of an organic compound in which heat is released
  9. / a conductive element

17 Clues: / a conductive element • / multiplicative factor • / negatively charged ion • / positively charged ion • / consisting of two atoms • / being the same in quantity • / chemical process which requires heat • / nonconductive element which lacks luster • / chemical reaction in which heat is released • / molecular ion with two or more atoms covalently bonded • ...

test review 2024-10-29

test review crossword puzzle
Across
  1. Reaction absorbing heat energy from its surroundings.
  2. Two or more atoms chemically bonded together.
  3. Equation: Representation of a chemical reaction using symbols.
  4. Atoms of the same element with different neutron counts.
  5. Smallest unit of an element, containing protons, neutrons, electrons.
  6. Atom or molecule with an electrical charge due to electron gain/loss.
  7. Gain of electrons during a chemical reaction.
  8. Light wave with frequencies higher than visible light.
  9. Bond: Bond where atoms share electron pairs.
  10. The part of the electromagnetic spectrum detectable by human eyes.
  11. Substance that donates protons (H⁺ ions) in solution.
  12. Substance that increases reaction rate without being consumed.
  13. Loss of electrons during a chemical reaction.
  14. Electrons: Electrons in the outer shell involved in chemical bonding.
  15. Scale indicating the acidity or basicity of a solution.
  16. Refers to microwaves; electromagnetic waves with shorter wavelengths than radio.
  17. A wave that travels through a medium, carrying audible energy.
  18. Bond: Bond formed by attraction between oppositely charged ions.
Down
  1. Substance formed as a result of a chemical reaction.
  2. Reaction where energy is given off to its surroundings
  3. Pure substance of only one type of atom.
  4. waves that are a form of radiation that travel through the universe
  5. Electromagnetic wave visible to the human eye.
  6. the particles of the medium vibrate at right angles to the direction that the energy travels
  7. wave that moves in the same direction as the way in which the particles are moving
  8. Starting substance in a chemical reaction.
  9. Lowest point on a wave, opposite the crest.
  10. Homogeneous mixture of two or more substances.
  11. Substance that accepts protons or donates hydroxide ions (OH⁻).
  12. Number of wave cycles passing a point per second.
  13. Highest point on a wave, where displacement is maximum.
  14. Height of a wave from rest to crest or trough.
  15. Substance made of two or more elements chemically combined.

33 Clues: Pure substance of only one type of atom. • Starting substance in a chemical reaction. • Lowest point on a wave, opposite the crest. • Bond: Bond where atoms share electron pairs. • Two or more atoms chemically bonded together. • Gain of electrons during a chemical reaction. • Loss of electrons during a chemical reaction. • Electromagnetic wave visible to the human eye. • ...

Week 5 Vocabulary List 2025-03-25

Week 5 Vocabulary List crossword puzzle
Across
  1. substances that are made during a chemical reaction
  2. uncontrolled cell growth
  3. structure that contains genetic material in a condensed form
  4. a catalyst that speeds up chemical reactions by lowering activation energy
  5. cell division that is used to repair, replace, and for asexual reproduction
  6. molecule that speeds up chemical reactions by lowering activation energy
  7. substances that are changed during a chemical reaction
  8. area where sister chromatids are attached
  9. a mass of cells growing in one place due to cancer
Down
  1. process that changes one set of molecules into a new set of molecules
  2. name for reactants in an enzyme catalyzed reaction
  3. a copy of a chromosome
  4. division of cytoplasm
  5. DNA in a loose state
  6. a tumor that is cancerous
  7. energy needed to start a chemical reaction
  8. a tumor that doesn't move non-cancer
  9. organelle that moves chromosomes during cell division
  10. stages G1, S, G2 a cell must complete before cell division
  11. when a cell goes through mitosis to make identical cells

20 Clues: DNA in a loose state • division of cytoplasm • a copy of a chromosome • uncontrolled cell growth • a tumor that is cancerous • a tumor that doesn't move non-cancer • area where sister chromatids are attached • energy needed to start a chemical reaction • name for reactants in an enzyme catalyzed reaction • a mass of cells growing in one place due to cancer • ...

chemistry compo 2020-03-29

chemistry compo crossword puzzle
Across
  1. subatomic particle with no mass and negative electrical charge
  2. any species that increases the concentration of OH- in an aqueous solution
  3. an ion with a negative charge
  4. the number of electrons needed to fill the outermost shell of an atom
  5. the resulting substance of a physical or chemical reaction
  6. produce salts when reacting with metals; Group 17 of the Periodic Table
  7. a lasting attraction between atoms, ions or molecults that enables the formation of chemical compounds
  8. any species that increases the concentration of H+ in an aqueous solution
  9. an electrically neutral group of two or more atoms held together by chemical bonds
  10. a chemical reaction in which heat is absorbed
  11. center of a an atom
  12. metallic element that has valence electrons in two shells instead of one
  13. a structure made of ions
  14. substance that is changed in a physical or chemical reaction
  15. a baryon considered to be composed of two up quarks and one down quark
Down
  1. complete transfer of valence electrons between atoms
  2. a baryon considered to be composed of two down quarks and one up quark
  3. a chemical element with metal and nonmetal properties
  4. compound that contains exactly two different elements
  5. a column of elements in the periodic table
  6. also known as the lithium family of elements
  7. molecular bond; a chemical bond that involves the sharing of electron paris between
  8. a group of rare gases that exhibit great stability and extremely low reaction rates
  9. the theory that all matter is made up of atoms
  10. the loss of electrons during a reaction by a molecule, atom or ion
  11. a chemical reaction that releases energy through light or heat
  12. an ion with a positive charge
  13. a chemical element that mostly lacks the characteristics of a metal
  14. a species of atoms which all have the same number of protons in their atomic nuclei
  15. a chemical reaction in which the oxidation states (charges) of atoms are changed

30 Clues: center of a an atom • a structure made of ions • an ion with a negative charge • an ion with a positive charge • a column of elements in the periodic table • also known as the lithium family of elements • a chemical reaction in which heat is absorbed • the theory that all matter is made up of atoms • complete transfer of valence electrons between atoms • ...

chapter 2: chemistry of life 2018-04-03

chapter 2: chemistry of life crossword puzzle
Across
  1. / one particular type of atom, and it cannot be broken down into a simpler substance by ordinary chemical means.
  2. / the attraction among molecules of different substances.
  3. / a polymer made of monomers called amino acids.
  4. / forms through the electrical force between oppositely charged ions.
  5. / a compound that releases a proton when it dissolves in water.
  6. / a chemical reaction releases more energy than it absorbs.
  7. / a substance that decreases the activation energy needed to start a chemical reaction, and increases the rate of the chemical reaction.
  8. / compounds that remove H+ ions from a solution.
  9. / each subunit in the complete molecule.
  10. / polymers that are made up of monomers called nucleotides.
  11. / a macromolecule made of many monomers bonded together.
  12. / change substances into different substances by breaking and forming chemical bonds.
  13. / the substance changed during a chemical reaction.
  14. / two or more atoms held together by covalent bonds.
Down
  1. / a substance that dissolves in a solvent.
  2. / the attraction among molecules stick to each other.
  3. / a homogeneous mixture.
  4. / the specific reactants that an enzyme acts one.
  5. / molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
  6. / an atom that has gained or lost one or more electrons.
  7. / the substance that is present in the greater amount and that dissolves another substance.
  8. / nonpolar molecules that include fats, oils, and cholesterol.
  9. / the amount of energy that needs to be absorbed for a chemical reaction to start.
  10. / molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches.
  11. / chains of carbon atoms bonded to hydrogen atoms.
  12. / The smallest basic unit of matter.
  13. / reached when both the reactants and products are made at the same rate.
  14. / forms when atoms share a pair of electrons.
  15. / the substances made by a chemical reaction.
  16. / catalysts for chemical reactions in living things.
  17. / the amount of energy that will break a bond between two atoms.
  18. / a chemical reaction absorbs more energy than it releases.
  19. / a substance made of atoms of different elements bonded together in a certain ratio.

33 Clues: / a homogeneous mixture. • / The smallest basic unit of matter. • / each subunit in the complete molecule. • / a substance that dissolves in a solvent. • / forms when atoms share a pair of electrons. • / the substances made by a chemical reaction. • / a polymer made of monomers called amino acids. • / compounds that remove H+ ions from a solution. • ...

Matter vocab 2024-05-15

Matter vocab crossword puzzle
Across
  1. When you burn a fire it gives off ____?
  2. A science that deals with the composition, structure, and properties of substances and of the transformations that they undergo.
  3. Hydrogen
  4. Describes how a substance behaves during a physical reaction.
  5. The starting materials in a reaction that undergo a chemical change to form a product.
  6. The smallest unit of a substance.
  7. The force that holds a piece of matter together.
  8. Anything that has mass and takes up space.
  9. A substance that is formed as the result of a chemical reaction.
  10. Chemical reactions where chemical bonds are either created, broken, or both.
  11. The amount of space the object takes up.
  12. An attraction between atoms.
Down
  1. Everything that can make change or cause something to react has ____?
  2. The measure of hotness or coldness (Fahrenheit,Celsius).
  3. Chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
  4. A process in which one or more substances are converted to one or more different substances.
  5. Describes how a substance behaves during a chemical reaction.
  6. The material involved in the change are the same before and after the change
  7. Two or more substances that are mixed together.
  8. The amount of matter that makes up an object.
  9. anything that gives off heat (opposite of endothermic.)
  10. Basic particles of the chemical elements.
  11. H2O

23 Clues: H2O • Hydrogen • An attraction between atoms. • The smallest unit of a substance. • When you burn a fire it gives off ____? • The amount of space the object takes up. • Basic particles of the chemical elements. • Anything that has mass and takes up space. • The amount of matter that makes up an object. • Two or more substances that are mixed together. • ...

Final Review 2017-12-17

Final Review crossword puzzle
Across
  1. / a system in which matter cannot enter or escape
  2. / substance that is present in a solution in the largest amount
  3. / fire is this type of change
  4. / the solution produced when too much solute is added to the solvent
  5. / mixture containing small, undissolved particles
  6. / a system in which matter can enter or escape
  7. / this type of solution has a lot of solute in the solvent
  8. in which particles are easily seen and separated
  9. / the amount of solute a solvent is able to dissolve
  10. / a type of change that does not chemically alter the object
  11. / on the right side of a chemical equation
Down
  1. / this chemical ____ is the easy way of naming a compound
  2. / substance that is dissolved by the solvent
  3. / substance that increases activation energy of a chemical reaction
  4. / substance that lowers activation energy of a chemical reaction
  5. / amount of substance in a given volume
  6. / type of reaction that swaps elements in compounds
  7. / type of reaction that breaks down a compound into multiple products
  8. / type of reaction that combines multiple reactants to form one product
  9. / mixture containing a solute and solvent
  10. / on the left side of a chemical equation
  11. / this type of solution has a little amount of solute dissolved in the solvent

22 Clues: / fire is this type of change • / amount of substance in a given volume • / mixture containing a solute and solvent • / on the left side of a chemical equation • / on the right side of a chemical equation • / substance that is dissolved by the solvent • / a system in which matter can enter or escape • in which particles are easily seen and separated • ...

vocab 2024-04-24

vocab crossword puzzle
Across
  1. a fatty/waxy organic compound that is readily soluble in a nonpolar solvent and not in a polar solvent.
  2. a substance taking part in a chemical reaction
  3. made up of chemical "building blocks" that are called amino acids
  4. the minimum amount of energy which the reacting species must have to undergo a specified reaction
  5. the substance that the ezyme act upon
  6. the main use is to act as a catalyst to make the reaction faster without being changed in the process
  7. something capable of speeding up or initiating a chemical reaction
  8. made by molecules that combine to form proteins
  9. a molecule produced by a living organism
Down
  1. a nitrogen-containing organic compound that has the chemical properties of a base
  2. a substance that has very large molecules called macromolecules
  3. large biomolecules that have an essential role in all cells and viruses.
  4. acid a subunit of fats, oils, and waxes
  5. sugar molecules
  6. an important sugar in bodies used to make their DNA
  7. a region where catalytic energy occurs
  8. combined to other identical molecules to form a polymer
  9. the chemical breakdown of a compound due to reaction with water
  10. a result from an action or process
  11. a chemical element found in nature

20 Clues: sugar molecules • a result from an action or process • a chemical element found in nature • the substance that the ezyme act upon • a region where catalytic energy occurs • acid a subunit of fats, oils, and waxes • a molecule produced by a living organism • a substance taking part in a chemical reaction • made by molecules that combine to form proteins • ...

Chemistry crossword 2015-11-13

Chemistry crossword crossword puzzle
Across
  1. something that helps speed up the chemical reaction
  2. positively charged centre of an atom
  3. a chemical reaction in which heat is abosorbed
  4. able to form the object to something else without breaking it
  5. a compound made from a metal and non-metal elements
  6. a change where a new substance is made
  7. the most reactive element
  8. a compound made with 2 non-metal elements
  9. an experiment in which is one or more products of a chemical reaction can escape
  10. how well the element or compound is able to conduct electricity
  11. a group of atoms joined by covalent bonds
  12. a group of elements that are the most reactive non-metals
  13. hydogen's symbol
  14. a combination of pure chemicals
Down
  1. this is a principle saying that matter cannot be gained or lost in a chemical reaction
  2. a chemical reaction that releases heat
  3. chemical combination of 2 ore more elements in a specific ratio
  4. the metals found in group 1
  5. an element that has the bot metallic and non-metallic properties
  6. number the sum of the number of protons and neutrons in an atom
  7. a change in the appearance.
  8. water's chemical formula
  9. a group of non-metal elements that are the most stable
  10. substance that has a strong resistance to the flow of electricity
  11. neutral particle in the nucleus of an atom

25 Clues: hydogen's symbol • water's chemical formula • the most reactive element • the metals found in group 1 • a change in the appearance. • a combination of pure chemicals • positively charged centre of an atom • a chemical reaction that releases heat • a change where a new substance is made • a compound made with 2 non-metal elements • a group of atoms joined by covalent bonds • ...

Chemistry Crossword 2015-11-19

Chemistry Crossword crossword puzzle
Across
  1. Catalyst involved in a chemical reaction in living things.
  2. The smallest part of an element that is representative of that element.
  3. A material that that electric charge can move through easily.
  4. Shiny, malleable, ductile element that conducts electricity.
  5. Chemical reaction that takes place in cell.
  6. Change of state from a liquid to gas.
  7. Chemical combination of two or more elements in a specific ratio.
  8. Chemical reaction that releases energy.
  9. Anything that has mass and occupies space.
  10. Slow chemical change that occurs when oxygen in the air reacts with a metal.
  11. Change of state from solid to liquid.
Down
  1. Number of protons in the nucleus of one atom of an element.
  2. Invisible negatively charged particle that orbits the nucleus of an atom.
  3. Measure of atomic mass.
  4. Description of a substance that can be pounded or rolled into sheet.
  5. Chemical reaction that absorb energy.
  6. Substance that helps a chemical reaction to proceed more quickly.
  7. Change of state from a gas to liquid.
  8. Change of state from a gas to solid.
  9. Vertical column of element in the periodic table.
  10. Group 17 elements in the periodic table.
  11. Substance that strongly resist the flow of electricity.
  12. Chang of state from a liquid to solid.
  13. Amount of mass in a given volume of a substance.
  14. Ability to work.

25 Clues: Ability to work. • Measure of atomic mass. • Change of state from a gas to solid. • Chemical reaction that absorb energy. • Change of state from a gas to liquid. • Change of state from a liquid to gas. • Change of state from solid to liquid. • Chang of state from a liquid to solid. • Chemical reaction that releases energy. • Group 17 elements in the periodic table. • ...

Unit 8 Crossword 2025-05-11

Unit 8 Crossword crossword puzzle
Across
  1. All ________, except Ca+2, Sr+2, Ba+2, Hg2+2, and Pb+2, are soluble.
  2. Illustrates a chemical reaction using symbols and chemical formulas or elements.
  3. _______ of a chemical reaction include the formation of a gas or a precipitate, a change in energy, or a change in color.
  4. AB + O2 → CO2 + H2O
  5. All ________, except those of group 1 and NH4+, are insoluble.
  6. All ________, except Ag+ and Pb+2, are soluble.
  7. _______Displacement AB + CD → AD + CB
  8. AB → A + B
  9. A + B → AB
  10. All _________ are soluble
  11. The small number found after a chemical symbol or ion. This shows the specific number of atoms in a molecule or compound.
  12. Starting materials
  13. Displacement will not occur and result in no reaction if C is more _______ than A (single displacement).
Down
  1. Most nonmetals are a ________
  2. _______ displacement A + BC → AC + B
  3. A compound dissolved in water is known as ______
  4. _______ separates when ionic compounds are dissolved in water
  5. Most metals are a ________
  6. Ending materials
  7. Chemical equations must be ________ because matter can not be created or destroyed during a reaction.
  8. The number found before a chemical formula or element to show how many atoms or molecules are involved in a chemical reaction.
  9. Carbon and hydrogen bonded together is a __________
  10. Only bromine and mercury are a _______
  11. BrINClHOF
  12. 3 elements in a compound is a ________

25 Clues: BrINClHOF • AB → A + B • A + B → AB • Ending materials • Starting materials • AB + O2 → CO2 + H2O • All _________ are soluble • Most metals are a ________ • Most nonmetals are a ________ • _______ displacement A + BC → AC + B • Only bromine and mercury are a _______ • 3 elements in a compound is a ________ • _______Displacement AB + CD → AD + CB • ...

BOUNS POINTS: Crossword from Enzymes Lesson 2022-10-17

BOUNS POINTS: Crossword from Enzymes Lesson crossword puzzle
Across
  1. transmit genetic information/store directions for making proteins
  2. a chemical reaction that releases energy as heat
  3. reaction examples include ripping of paper or melting of ice
  4. large molecules to small molecules (release energy/heat)
  5. the resulting materials at the end of a chemical reaction
  6. change one substance into another
Down
  1. store long-term energy and form protective barriers
  2. the energy needed to start a chemical reaction
  3. enzymes are an example of this type of macromolecule
  4. a chemical reaction that absorbs energy
  5. examples include frying an egg or rusting of metal
  6. the starting materials in a chemical reaction
  7. complex chemistry in the body
  8. small molecules are built into large molecules (need energy/heat)
  9. A main source of energy for organisms in the form of sugar or starches

15 Clues: complex chemistry in the body • change one substance into another • a chemical reaction that absorbs energy • the starting materials in a chemical reaction • the energy needed to start a chemical reaction • a chemical reaction that releases energy as heat • examples include frying an egg or rusting of metal • store long-term energy and form protective barriers • ...

TOPIC 2: FORMULAS & EQUATIONS 2023-09-17

TOPIC 2: FORMULAS & EQUATIONS crossword puzzle
Across
  1. describes a reaction that absorbs heat
  2. the composition of a substance is changed
  3. does not alter the chemical properties of a substance
  4. covalently bonded group of atoms with a net electrical charge
  5. the one, two, or three letter designation of an element
  6. the smaller number written after a chemical symbol
  7. simplest integer ratio in a compound
  8. information that is either counted or measured
Down
  1. smallest unit of a covalently bonded substance
  2. information that is neither counted or measured
  3. symbols and subscripts use to represent a chemical substance
  4. a substance formed in a chemical reaction
  5. another term for decomposition into simpler substances
  6. formed by two identical covalently bonded atoms
  7. an element takes the place of a less reactive element
  8. ions exchange places
  9. describes a reaction that releases heat
  10. two or more substances combine to form one product
  11. the number placed before a formula
  12. a starting substance in a chemical reaction

20 Clues: ions exchange places • the number placed before a formula • simplest integer ratio in a compound • describes a reaction that absorbs heat • describes a reaction that releases heat • a substance formed in a chemical reaction • the composition of a substance is changed • a starting substance in a chemical reaction • smallest unit of a covalently bonded substance • ...

Chemistry Crossword 2017-11-10

Chemistry Crossword crossword puzzle
Across
  1. Organic catalyst
  2. Made up of one type of matter and has a unique set of
  3. A chemical change, which absorbs heat energy.
  4. When material change state, but does not change composition
  5. An experiment kin which all reactants and all products of a chemical
  6. A pure substance formed when at least one metal and one non-metal
  7. Greek word for "same kind"
  8. A substance that reacts with another substance or substance
  9. Mixture in which the different substance are easy to see.
  10. Mixtures of two or more pure substance that look like one substance.
  11. A new substance produced in a chemical reaction between reactant.
  12. substance to form a new substance and gives off energy.
  13. A chemical change, which release heat energy.
Down
  1. are accounted for.
  2. Cloudy mixture that can be separated.
  3. chemical reaction to create a new substance with different products
  4. Greek word for "different kind"
  5. Hazardous household materials information system
  6. Is a chemical reaction that occurs when oxygen reacts with
  7. When two or more substance react to form a new substance(the new substance has new properties)
  8. An expirement in which one or more products of a chemical reaction can
  9. properties.
  10. Cloudy mixture that cannot be separated.
  11. Made up of two or more substances combined together.
  12. Workplace hazardous materials information system

25 Clues: properties. • Organic catalyst • are accounted for. • Greek word for "same kind" • Greek word for "different kind" • Cloudy mixture that can be separated. • Cloudy mixture that cannot be separated. • A chemical change, which absorbs heat energy. • A chemical change, which release heat energy. • Hazardous household materials information system • ...

perfect 10 2023-03-01

perfect 10 crossword puzzle
Across
  1. representation of a chemical reaction in symbols
  2. matter can neither be created nor destroyed
  3. something that creates a chemical reaction
  4. any substance present at the start of a chemical reaction
  5. result of a chemical reaction
  6. chemical reaction that involves releasing energy in heat or light form
Down
  1. a solid that is created when two solutions are mixed
  2. one is when energy can come and leave and the other is the opposite
  3. the process of turning one or more substances into new substances
  4. reaction that absorbs heat
  5. number placed infront of a chemical equation
  6. number next to a chemical reaction

12 Clues: reaction that absorbs heat • result of a chemical reaction • number next to a chemical reaction • something that creates a chemical reaction • matter can neither be created nor destroyed • number placed infront of a chemical equation • representation of a chemical reaction in symbols • a solid that is created when two solutions are mixed • ...

Biomolecules Vocabulary 2024-04-26

Biomolecules Vocabulary crossword puzzle
Across
  1. Substance entered into and is altered in the curse of a chemical reaction
  2. Chemical compound that is found in living organisms
  3. Surface of which an organism lives on which the enzyme acts on
  4. Substance that speeds up a chemical reaction or lowers the pressure or temperature to start one
  5. Molecular subunit that is combined with similar subunits to form large molecules
  6. Initial energy input, that is later paid back as the reaction proceeds
  7. Element that takes a solid and forms it into either graphite or diamond
  8. Fatty compound that performs many types of functions in the body
  9. Molecule that is made up of amino acids
  10. Final result after a biological process occured
  11. Molecule that contains nitrogen and has chemical properties of the base
Down
  1. Common form of a chemical reaction where it is mostly used to break down the chemical bonds that exist between a particular substance
  2. Region of enzyme where substrate molecules undergo a chemical reaction
  3. A sugar molecule
  4. Large biomolecule that plays an essential role in all cells and viruses
  5. Building blocks of fat in our bodies and in the food we eat
  6. Large molecules that are made by bonding which is a series of building blocks
  7. Pentose sugar that is important for the formation of DNA or deoxyribonucleic acid
  8. Molecules that are combined to form proteins
  9. Protein that speeds up matabolism or chemical reactions in the body

20 Clues: A sugar molecule • Molecule that is made up of amino acids • Molecules that are combined to form proteins • Final result after a biological process occured • Chemical compound that is found in living organisms • Building blocks of fat in our bodies and in the food we eat • Surface of which an organism lives on which the enzyme acts on • ...

Stoichiometry 2024-04-01

Stoichiometry crossword puzzle
Across
  1. The mass of one mole of a substance, in grams per mole (g/mol).
  2. A representation of a chemical reaction, showing the reactants on the left side and the products on the right side, with an arrow indicating the direction of the reaction.
  3. Numbers placed in front of chemical formulas in a balanced equation to tell the relative number of moles of each substance involved in the reaction.
  4. The reactant that is not completely consumed in a chemical reaction because there is more of it than required to react with the limiting reactant.
  5. The ratio of the masses of one substance to the masses of another substance in the chemical reaction.
  6. The substances that go through a chemical reaction to form products.
  7. The number of particles (atoms, molecules, ions, etc.) in one mole of a substance. 6.022×10^23
  8. The calculations of products and reactants in a chemical reaction
Down
  1. An equation representing a chemical reaction where the number of atoms of each element is the same on both sides of the equation.
  2. The ratio of the number of moles of one substance to the number of moles of another substance in a balanced equation.
  3. The reactant that is consumed in a chemical reaction, limiting the amount of product formed.
  4. The substances that are formed as a result of a chemical reaction between reactants.
  5. A process in which one or more substances are converted into different substances through the ordering of atoms.
  6. A unit to measure the amount of a substance. One mole of a substance contains Avogadro's number of particles.
  7. A number written to the right and below an element's symbol in a chemical formula, indicating the number of atoms of that element in a molecule.

15 Clues: The mass of one mole of a substance, in grams per mole (g/mol). • The calculations of products and reactants in a chemical reaction • The substances that go through a chemical reaction to form products. • The substances that are formed as a result of a chemical reaction between reactants. • ...

Biomolecules Vocabulary 2024-04-30

Biomolecules Vocabulary crossword puzzle
Across
  1. A pentose sugar important to the formation of DNA
  2. The inputs of a chemical reation
  3. Element 6 on the periodic table and a substance that is in all living things
  4. Large biomolecules that play essential roles in all cells EX:DNA and RNA
  5. A region on an enzyme that binds to a protein or other substance during a reaction
  6. Energy formed by green plants from co2 and water during photosynthesis
  7. Fatty biomolecules that can be used for insulation and membrane in the body
  8. Proteins that help speed up metabolism or the chemical reactions in our bodies
Down
  1. A substance that changes the rate of a chemical reaction without undergoing any chemical change itself
  2. A molecule that contains nitrogen and has the chemical properties of a base
  3. The result of a chemical reaction
  4. A molecule that an enzyme interacts with
  5. Organic compounds that are important to body structures like muscle development
  6. Molecules used by all living things to make proteins
  7. Molecules produced by living organisms
  8. A chemical reaction in which water is used to break down the chemical bonds of a substance
  9. The minimum quantity of energy in which the reactants must posses to undergo a specified reaction
  10. Small atoms or molecules that bond together to form more complex structures like polymers
  11. The building blocks of fat in our bodies and the food that we eat
  12. Large molecules made by bonding a series of building blocks

20 Clues: The inputs of a chemical reation • The result of a chemical reaction • Molecules produced by living organisms • A molecule that an enzyme interacts with • A pentose sugar important to the formation of DNA • Molecules used by all living things to make proteins • Large molecules made by bonding a series of building blocks • ...

Biomolecules Vocabulary 2024-04-26

Biomolecules Vocabulary crossword puzzle
Across
  1. Substance entered into and is altered in the curse of a chemical reaction
  2. Chemical compound that is found in living organisms
  3. Surface of which an organism lives on which the enzyme acts on
  4. Substance that speeds up a chemical reaction or lowers the pressure or temperature to start one
  5. Molecular subunit that is combined with similar subunits to form large molecules
  6. Initial energy input, that is later paid back as the reaction proceeds
  7. Element that takes a solid and forms it into either graphite or diamond
  8. Fatty compound that performs many types of functions in the body
  9. Molecule that is made up of amino acids
  10. Final result after a biological process occured
  11. Molecule that contains nitrogen and has chemical properties of the base
Down
  1. Common form of a chemical reaction where it is mostly used to break down the chemical bonds that exist between a particular substance
  2. Region of enzyme where substrate molecules undergo a chemical reaction
  3. A sugar molecule
  4. Large biomolecule that plays an essential role in all cells and viruses
  5. Building blocks of fat in our bodies and in the food we eat
  6. Large molecules that are made by bonding which is a series of building blocks
  7. Pentose sugar that is important for the formation of DNA or deoxyribonucleic acid
  8. Molecules that are combined to form proteins
  9. Protein that speeds up matabolism or chemical reactions in the body

20 Clues: A sugar molecule • Molecule that is made up of amino acids • Molecules that are combined to form proteins • Final result after a biological process occured • Chemical compound that is found in living organisms • Building blocks of fat in our bodies and in the food we eat • Surface of which an organism lives on which the enzyme acts on • ...

Chapter 7 Vocabulary 2023-01-12

Chapter 7 Vocabulary crossword puzzle
Across
  1. eactions that occur when two different atoms or molecules interact to form a different molecule or compound
  2. reaction where heat energy is absorbed
  3. any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron
  4. substance present after a chemical reaction
Down
  1. symbolic representations of chemical reactions where reactants and the products are expressed
  2. a chemical reaction in which a fuel undergoes oxidation by reacting with an oxidising agent, resulting in the release of energy
  3. substance that undergoes change in a reaction
  4. a reaction in which one element is substituted for another element in a compound
  5. a chemical reaction in which one reactant breaks down into two or more products
  6. the amount of substance of a system which contains as many elementary entities
  7. energy stored in the bonds of chemical compounds, like atoms and molecules.
  8. reaction where heat engery is released
  9. a number placed in front of a chemical symbol or formula
  10. reactions in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
  11. the ratio between the mass and the amount of substance

15 Clues: reaction where heat energy is absorbed • reaction where heat engery is released • substance present after a chemical reaction • substance that undergoes change in a reaction • the ratio between the mass and the amount of substance • a number placed in front of a chemical symbol or formula • energy stored in the bonds of chemical compounds, like atoms and molecules. • ...

Sophia Celona 2019-06-12

Sophia Celona crossword puzzle
Across
  1. Na+, Mg2+, Al3+,NH4+
  2. A chemical rule of thumb that reflects observation that atoms of main group elements tend to bond.
  3. An atom as a small, positively charged nucleus surrounded by electrons.
  4. The outer shell electron that is associated with an atom.
  5. An equation in which each side has the same number of atoms of each element.
  6. Any system closed to all transfers of matter and energy.
  7. A table of the chemical elements arranged in order of atomic number.
  8. Are substances initially presented in a chemical reaction that are consumed during the reaction to make products.
  9. A number in front of a chemical like 2H2o
  10. AB + CD ---> CB + AD
  11. A solution in which the solvent is water.
  12. A substance that is formed as the result of a chemical reaction.
  13. Bonds form to make atoms “happy” and allow atoms to follow the octet rule.
  14. A chemical bond that involves the sharing of electron pairs between atoms.
Down
  1. A reaction in which the atoms of one element replace the atoms of a second element.
  2. A chemical bond that generates two oppositely charged ions.
  3. 1s2s2p
  4. A reaction in which a single compound is broken down into simpler substances.
  5. A diagram that shows bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.
  6. CH4 + 2O2 ---> CO2 + 2H2O
  7. Chemical formulas in place of chemical names
  8. Nitrate ion (NO3-)
  9. A + B ---> AB
  10. Hydrochloric acid (HCL), Nitric acid (HNO3)
  11. A negatively charged ion

25 Clues: 1s2s2p • A + B ---> AB • Nitrate ion (NO3-) • Na+, Mg2+, Al3+,NH4+ • AB + CD ---> CB + AD • A negatively charged ion • CH4 + 2O2 ---> CO2 + 2H2O • A number in front of a chemical like 2H2o • A solution in which the solvent is water. • Hydrochloric acid (HCL), Nitric acid (HNO3) • Chemical formulas in place of chemical names • ...

your mom 2023-12-11

your mom crossword puzzle
Across
  1. a chemical reaction in which one element replaces another in a compound.
  2. a mathematical sentence that has two equal sides separated by an equal sign.
  3. the process by which dead organic substances are broken down into simpler organic or inorganic matter
  4. Chemical reactions that absorb (or use) energy overall
  5. a system for arranging the chemical elements.
  6. the appearance or form of the matter changes but the kind of matter in the substance does not.
  7. formed by the equal sharing of electrons from both participating atoms
Down
  1. the production of chemical compounds by reaction from simpler materials
  2. a reaction in which energy is released in the form of light or heat.
  3. occur when parts of two ionic compounds are exchanged, making two new compounds
  4. one of the first chemical reactions intentionally controlled by humans.
  5. a chemical element (such as boron, carbon, or nitrogen) that lacks the characteristics of a metal.
  6. the starting materials in a reaction that undergo a chemical change to form a product.
  7. opaque, lustrous elements that are good conductors of heat and electricity.
  8. any change that causes a new substance to be formed.
  9. a subatomic particle with a positive electrical charge
  10. a measure of how readily a substance undergoes a chemical reaction.
  11. the measurement of how tightly a material is packed together.
  12. Ionic bonds result from the attraction between oppositely charged ions.

19 Clues: a system for arranging the chemical elements. • any change that causes a new substance to be formed. • Chemical reactions that absorb (or use) energy overall • a subatomic particle with a positive electrical charge • the measurement of how tightly a material is packed together. • a measure of how readily a substance undergoes a chemical reaction. • ...

C3.3 Types of chemical reactions 2021-05-18

C3.3 Types of chemical reactions crossword puzzle
Across
  1. the relative acidity or alkalinity of an aqueous solution
  2. a solution that resists changes in pH
  3. a substance that neutralises acids forming a salt and water only
  4. describes a substance that has gained oxygen, or lost electrons, in a chemical reaction
  5. a solution, not acidic or alkaline, with a pH of 7
  6. a solution in which the solvent is water
  7. describes a substance that has lost oxygen, or gained electrons, in a chemical reaction
  8. a measure of the amount of dissolved solute present in a solution
  9. ionic compounds that contain the carbonate ion
  10. a soluble base
  11. when a solution contains a relatively high amount of solute
  12. bubbling or fizzing observed in a chemical reaction
  13. to adjust the reading on an instrument to match the observed value with the value of the quantity being measured
  14. a reaction between an acid and a base or alkali, producing a salt plus water
  15. a gain of oxygen, or loss of electrons, by a substance in a chemical reaction
Down
  1. a type of chemical equation that models the change that happens to one reactant in a reaction
  2. a substance that reduces another substance by accepting oxygen or by donating electrons
  3. a chemical reaction in which one substance is reduced while another is oxidised
  4. a substance that oxidises another substance by donating oxygen or by accepting electrons
  5. ascale that measures relative acidity or alkalinity of an aqueous solution, from 0 (strongly acidic) through 7 (neutral), to 14 (strongly alkaline)
  6. a loss of oxygen, or gain of electrons, by a substance in a chemical reaction
  7. a solution with a relatively low amount of solute
  8. a substance that ionises in water, releasing hydrogen ions
  9. an acid that is fully ionised in aqueous solution
  10. acid only partially ionised in aqueous solution
  11. a compound formed when hydrogen ions in an acid are replaced by metal ions or ammonium ions.

26 Clues: a soluble base • a solution that resists changes in pH • a solution in which the solvent is water • ionic compounds that contain the carbonate ion • acid only partially ionised in aqueous solution • a solution with a relatively low amount of solute • an acid that is fully ionised in aqueous solution • a solution, not acidic or alkaline, with a pH of 7 • ...

Organic Chem Vocab 2022-01-26

Organic Chem Vocab crossword puzzle
Across
  1. an aromatic hydrocarbon
  2. chemical bond dissociation of a molecular bond by a process where each of the fragments (an atom or molecule) retains one of the originally bonded electrons.
  3. an atom or a molecule that in chemical reaction seeks an atom or molecule containing an electron pair available for bonding.
  4. a substance that enters into and is altered in the course of a chemical reaction.
  5. show the movement of single electrons during the breaking of the bond.
  6. a type of chemical reaction in which two molecules are combined to form a single molecule
  7. hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms.
  8. An organic compound in which all the carbon atoms are connected by single bonds.
  9. compounds that contain exactly the same number of atoms
  10. one in which two or more organic compounds have the same molecular formulas but different structures.
  11. an organic reaction where two or more molecules combine to form a larger one
  12. a molecular fragment that departs with a pair of electrons in heterolytic bond cleavage.
Down
  1. a chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
  2. a two-stage reaction process of an addition reaction followed by an elimination reaction.
  3. the simplest whole number ratio of atoms present in a compound.
  4. hydrocarbons that are the open chain compounds and also closed chains.
  5. a graphic representation of the molecular structure, showing how the atoms are possibly arranged in the real three-dimensional space.
  6. the process of cleaving/breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species.
  7. consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule.
  8. an electron-rich molecule that can form covalent bonds by donating electrons to electron-poor sites.
  9. used in mechanisms to show the various electron pairs moving around

21 Clues: an aromatic hydrocarbon • compounds that contain exactly the same number of atoms • the simplest whole number ratio of atoms present in a compound. • used in mechanisms to show the various electron pairs moving around • hydrocarbons that are the open chain compounds and also closed chains. • show the movement of single electrons during the breaking of the bond. • ...

Types of Chemical Reactions, DEEPAK 10N 2024-04-30

Types of Chemical Reactions, DEEPAK 10N crossword puzzle
Across
  1. chemical reaction in which heat is released
  2. process involves gain of oxygen atoms or loss of hydrogen
  3. chemical decomposition caused by heat
  4. substance that increases the rate of the chemical reaction
  5. chemical reaction in which heat is absorbed
  6. substances in right hand side of chemical equations
Down
  1. a single substance breaks down to give two or more substances
  2. substances that undergo chemical change in the reaction
  3. atoms of a compound is replaced by another atom
  4. two or more substances combine to form single substance
  5. this type of decomposition reaction is used in black and white photograph
  6. solution in which solvent is water
  7. reactions in which insoluble salts are formed
  8. process involves loss of oxygen atoms or gain of hydrogen
  9. solution of this is used for whitewashing

15 Clues: solution in which solvent is water • chemical decomposition caused by heat • solution of this is used for whitewashing • chemical reaction in which heat is released • chemical reaction in which heat is absorbed • reactions in which insoluble salts are formed • atoms of a compound is replaced by another atom • substances in right hand side of chemical equations • ...

Complete and incomplete combustion 2024-05-15

Complete and incomplete combustion crossword puzzle
Across
  1. A solid that forms from a solution during a chemical reaction.
  2. The gain of electrons by a molecule, atom, or ion.
  3. The sticking together of particles of the same substance.
  4. The transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase.
  5. The sticking together of particles of different substances.
  6. The loss of electrons by a molecule, atom, or ion.
  7. A substance that is formed as a result of a chemical reaction.
  8. The process of using electricity to drive a non-spontaneous chemical reaction.
Down
  1. A substance that increases the rate of a chemical reaction without being consumed in the process.
  2. A substance that takes part in and undergoes change during a reaction.
  3. A chemical reaction that absorbs energy from its surroundings.
  4. A state in which forward and reverse reactions occur at equal rates, resulting in no net change in the concentrations of reactants and products.
  5. A chemical reaction that releases energy in the form of heat.
  6. The decomposition of materials at high temperatures in an inert atmosphere.
  7. The chemical breakdown of a compound due to reaction with water.

15 Clues: The gain of electrons by a molecule, atom, or ion. • The loss of electrons by a molecule, atom, or ion. • The sticking together of particles of the same substance. • The sticking together of particles of different substances. • A chemical reaction that releases energy in the form of heat. • A solid that forms from a solution during a chemical reaction. • ...

Unit 3 Crossword 2014-11-12

Unit 3 Crossword crossword puzzle
Across
  1. Rate the measure of change in concentration of the reactants
  2. production of chemical compounds that react from simpler materials
  3. decay; the process of decay
  4. cations and anions of elements switch places
  5. he concentration of reactants and products participating in a chemical reaction exhibit no net change over time
  6. any chemical reaction that involves the gaining of electrons
  7. Result of change
Down
  1. undergoes change
  2. a substance that increases the rate of a chemical reaction
  3. process of burning something
  4. release of energy in the form of heat
  5. one element replaces another element in a compound
  6. absorbs energy in the form of heat
  7. the interaction between oxygen molecules and all the different substances they may contact
  8. cause a substance to be deposited in solid from a solution
  9. Coefficients are the numbers placed before the reactants in a chemical equation
  10. Equation consists of the chemical formulas of the reactants and the chemical formula of the products

17 Clues: undergoes change • Result of change • decay; the process of decay • process of burning something • absorbs energy in the form of heat • release of energy in the form of heat • cations and anions of elements switch places • one element replaces another element in a compound • a substance that increases the rate of a chemical reaction • ...

chapter 2: chemistry of life 2018-04-03

chapter 2: chemistry of life crossword puzzle
Across
  1. / the substances made by a chemical reaction.
  2. / molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
  3. / forms through the electrical force between oppositely charged ions.
  4. / a macromolecule made of many monomers bonded together.
  5. / two or more atoms held together by covalent bonds.
  6. / a compound that releases a proton when it dissolves in water.
  7. / reached when both the reactants and products are made at the same rate.
  8. / The smallest basic unit of matter.
  9. / polymers that are made up of monomers called nucleotides.
  10. / change substances into different substances by breaking and forming chemical bonds.
  11. / molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches.
  12. / the amount of energy that will break a bond between two atoms.
  13. / a substance made of atoms of different elements bonded together in a certain ratio.
  14. / the specific reactants that an enzyme acts one.
  15. / the attraction among molecules of different substances.
  16. / a substance that dissolves in a solvent.
  17. / each subunit in the complete molecule.
Down
  1. / catalysts for chemical reactions in living things.
  2. / the attraction among molecules stick to each other.
  3. / the amount of energy that needs to be absorbed for a chemical reaction to start.
  4. / a polymer made of monomers called amino acids.
  5. / nonpolar molecules that include fats, oils, and cholesterol.
  6. / the substance that is present in the greater amount and that dissolves another substance.
  7. / a substance that decreases the activation energy needed to start a chemical reaction, and increases the rate of the chemical reaction.
  8. / a chemical reaction absorbs more energy than it releases.
  9. / forms when atoms share a pair of electrons.
  10. / chains of carbon atoms bonded to hydrogen atoms.
  11. / the substance changed during a chemical reaction.
  12. / a chemical reaction releases more energy than it absorbs.
  13. / an atom that has gained or lost one or more electrons.
  14. / a homogeneous mixture.
  15. / compounds that remove H+ ions from a solution.
  16. / one particular type of atom, and it cannot be broken down into a simpler substance by ordinary chemical means.

33 Clues: / a homogeneous mixture. • / The smallest basic unit of matter. • / each subunit in the complete molecule. • / a substance that dissolves in a solvent. • / the substances made by a chemical reaction. • / forms when atoms share a pair of electrons. • / a polymer made of monomers called amino acids. • / compounds that remove H+ ions from a solution. • ...

Characteristics of Chemical Reactions 2021-03-16

Characteristics of Chemical Reactions crossword puzzle
Across
  1. rearrangement of atoms to produce something new
  2. substance with unique chemical and physical properties
  3. matter includes mass, length and volume
  4. observed or measured without changing substance
  5. group of atoms bonded together
  6. atoms rearrange during chemical change
  7. insoluble solid formed from chemical reaction
  8. natural substance undergo a chemical process
  9. one or more substances change to make different
Down
  1. property depends on type of matter not amount
  2. substance produced in a chemical reaction
  3. substance that changes during a reaction
  4. basic unit of matter
  5. physical or chemical characteristics of matter
  6. single substance
  7. large amounts

16 Clues: large amounts • single substance • basic unit of matter • group of atoms bonded together • atoms rearrange during chemical change • matter includes mass, length and volume • substance that changes during a reaction • substance produced in a chemical reaction • natural substance undergo a chemical process • property depends on type of matter not amount • ...

chemistry 2015-11-19

chemistry crossword puzzle
Across
  1. measures percent of hydrogen ions
  2. substance that helps a chemical reaction to proceed more quickly
  3. pure substance that can not be broken down
  4. the mass of the atom
  5. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  6. chemical combination of two or more elements in a specific ratio
  7. a reaction that takes place when two
  8. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
  9. a atom that has either gained or lost electrons
  10. neutral particle in the nucleus of an atom
  11. catalyst involved in chemical reactions in living thing things
  12. compound that dissolves in water to form a solution with a ph higher than 7
Down
  1. new substance produced in a chemical reaction between reactants
  2. substance that can be made into long wire
  3. group 18 elements in the periodic table the most and unreactive elements
  4. positively charged particle in the nucleus
  5. chemical reaction that occurs when oxygen reacts when oxygen reacts with a substance to form a new substance and give of energy
  6. device for producing electricity from chemical or solar energy
  7. group of atoms acting as one
  8. invisible negatively charged particle that orbits the nucleus of a atom
  9. creation of electrical circuit
  10. conductor through which electric current enters or leaves a device or material
  11. number of protons in the nucleus
  12. slow chemical change that occurs when oxygen in the air reacts with a metal
  13. Products of reaction that can escape

25 Clues: the mass of the atom • group of atoms acting as one • creation of electrical circuit • number of protons in the nucleus • measures percent of hydrogen ions • a reaction that takes place when two • Products of reaction that can escape • substance that can be made into long wire • positively charged particle in the nucleus • pure substance that can not be broken down • ...

physical science 2023-12-11

physical science crossword puzzle
Across
  1. to quickly refer to information about an element, like atomic mass and chemical symbol
  2. releases heat in chemical reaction
  3. the material involved in the change is structurally the same before and after the change.
  4. a substance that takes part in and undergoes change during a reaction
  5. a subatomic particle with a positive electrical charge
  6. on the left side on the periodic table
  7. a negatively charged subatomic particle that can be either bound to an atom or free
  8. a chemical process in which a substance reacts rapidly with oxygen and gives off heat.
  9. bond when pairs of electrons are shared by atoms.
  10. absorbs heat in chemical reaction
Down
  1. the process of equating one thing with another.
  2. a chemical reaction where two reactant ionic compounds exchange
  3. the complete transfer of valence electron(s) between atoms.
  4. the state or process of rotting decay.
  5. a change of materials into another, new materials with different properties and one or more than one new substances are formed
  6. the production of chemical compounds by reaction from simpler materials.
  7. a reaction in which one element replaces a similar element in a compound.
  8. a thing or person that is the result of an action or process.
  9. subatomic particles found inside the nucleus of every atom.
  10. the state or power of being reactive or the degree to which a thing is reactive.
  11. degree of consistency measured by the quantity of mass per unit volume
  12. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  13. one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table

23 Clues: absorbs heat in chemical reaction • releases heat in chemical reaction • the state or process of rotting decay. • on the left side on the periodic table • the process of equating one thing with another. • bond when pairs of electrons are shared by atoms. • a subatomic particle with a positive electrical charge • ...

CConley Chapter 13 2016-10-14

CConley Chapter 13 crossword puzzle
Across
  1. A chemical that donates a hydrogen ion
  2. Energy transfer from reactants to surroundings
  3. A reaction in which a single compound breaks down to form two or more simple substance
  4. A chemical reaction occurs when a substance reacts with oxygen
  5. When reaction and it's reverse action at the same rate
  6. Energy is transferred to reactants from surrounding
  7. A substance that undergoes a chemical change
  8. The amount of energy required to pull two bonds atoms a part
Down
  1. When a change in a chemical equilibrium is opposed until a new equilibrium is found
  2. Any substance that increases the rate of a chemical reaction
  3. A substance that is the result of the chemical change
  4. A reaction in which two or more substance combine to form a new compounds
  5. Change that takes place when two or more substance
  6. A chemical that accepts a hydrogen ion
  7. What is needed to start the process to break bonds or start a combustion reaction

15 Clues: A chemical that donates a hydrogen ion • A chemical that accepts a hydrogen ion • A substance that undergoes a chemical change • Energy transfer from reactants to surroundings • Change that takes place when two or more substance • Energy is transferred to reactants from surrounding • A substance that is the result of the chemical change • ...

Chemical Reactions and Enzymes 2022-11-15

Chemical Reactions and Enzymes crossword puzzle
Across
  1. will speed up the chemical reaction
  2. element or compounds produced in a chemical reaction
  3. changes one set of chemicals into another
  4. less is needed in a enzyme chemical reaction
  5. amino acid protein, speeds chemical reaction with specific substrate
Down
  1. energy needed to start a chemical reaction
  2. enzyme breaks down lactose in milk
  3. large molecule formed by many monomers
  4. reactant that engage in a enzyme speeded up reaction
  5. product of the iron (Fe)oxygen (O)
  6. elements that enter a chemical reaction
  7. small molecule, builds a large polymer

12 Clues: enzyme breaks down lactose in milk • product of the iron (Fe)oxygen (O) • will speed up the chemical reaction • large molecule formed by many monomers • small molecule, builds a large polymer • elements that enter a chemical reaction • changes one set of chemicals into another • energy needed to start a chemical reaction • less is needed in a enzyme chemical reaction • ...

Chemistry Vocabulary 2024-03-19

Chemistry Vocabulary crossword puzzle
Across
  1. A chemical reaction that releases heat energy.
  2. A chemical reaction that absorbs heat energy.
  3. The new substances formed in a chemical reaction.
  4. A short way to show what elements are in a compound and how many of each there are.
  5. Two or more substances that join together.
  6. The substances you start with in a chemical reaction.
  7. Bonds formed by the attraction between positively and negatively charged ions
  8. Things that make up everything around us.
Down
  1. When substances change into different ones.
  2. Bonds formed when atoms share electrons.
  3. Small numbers written to show how many atoms of each element are in a compound
  4. Natural materials are things that come from nature, like wood or cotton. Synthetic materials are made by people, like plastic or nylon.
  5. Heat energy.
  6. The idea that matter cannot be created or destroyed in a chemical reaction, only rearranged.
  7. Substances that make chemical reactions happen faster.
  8. Pure substances made up of only one type of atom.
  9. Numbers written in front of chemical formulas to balance equations.

17 Clues: Heat energy. • Bonds formed when atoms share electrons. • Things that make up everything around us. • Two or more substances that join together. • When substances change into different ones. • A chemical reaction that absorbs heat energy. • A chemical reaction that releases heat energy. • The new substances formed in a chemical reaction. • ...

24 vocab 2022-10-16

24 vocab crossword puzzle
Across
  1. An atom of group of atoms that has a positive or negative electric charge; forms by gaining or losing electrons.
  2. a scientific law stating that during a chemical reaction matter is not created or destroyed
  3. A usually reversible change in the physical properties of a substance, as size and shape.
  4. a combination of two or more substances. That do not combine chemically but remain the same individual substances
  5. a vertical column in the periodic table of elements that have similar properties.
  6. a substance made up of two or more different types of atoms bonded together
  7. A neutral particle located in an atom’s nucleus.
  8. a substance that cannot be broken down into a simpler substance by ordinary chemical changes
  9. The number before a chemical formula indicating how many molecules are involved in a chemical reaction.
  10. The total number of protons in an atom’s nucleus.
  11. A negatively charged particle located outside of an atom’s nucleus about 2000 times smaller than either a proton or neutron.
  12. A substance formed by a chemical reaction; made by the rearrangement of atoms and bonds in reactants.
Down
  1. The total number of protons and neutrons in an atom’s nucleus.
  2. a substance that is not uniform throughout.
  3. A solid substance that forms as a result of a chemical reaction between chemicals in two liquids.
  4. a substance that is evenly spread throughout particles not distinguishable
  5. An atom of one element that has a different number of neutrons than another atom of the same element.
  6. a substance that is present at the beginning of a chemical reaction takes. Part in the reaction and is changed into a new substance
  7. A change of one substance into another substance.
  8. a horizontal row in the periodic table of the elements that have similar properties.
  9. A group of atoms that are held together by covalent bonds so that they move together.
  10. A positively charged particle located in an atom’s nucleus.
  11. The number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  12. A substance that increases the rate of a chemical reaction but is not consumed by the reaction.

24 Clues: a substance that is not uniform throughout. • A neutral particle located in an atom’s nucleus. • A change of one substance into another substance. • The total number of protons in an atom’s nucleus. • A positively charged particle located in an atom’s nucleus. • The total number of protons and neutrons in an atom’s nucleus. • ...

Unit 5 Vocabulary to Know 2023-02-22

Unit 5 Vocabulary to Know crossword puzzle
Across
  1. the path or orbit electrons follow around the nucleus of an atom
  2. a combination of substances that can be physically separated from one another
  3. the substances that are formed during a chemical reaction; in a chemical reaction the arrows point toward the product
  4. tending to cause corrosion
  5. a chemical combination of two or more elements
  6. interaction between molecules that causes a chemical change, converting an existing substance into a new substance
Down
  1. not human-made
  2. a pure substance that cannot be broken down into simpler substances by chemical reactions
  3. made by humans
  4. chemical reaction that gives off heat energy
  5. a chemical reaction that absorbs heat energy
  6. a group of atoms held together by chemical bonds
  7. the substances present before a chemical reaction occurs; in a chemical reaction the arrow usually points away from the reactant(s)

13 Clues: not human-made • made by humans • tending to cause corrosion • chemical reaction that gives off heat energy • a chemical reaction that absorbs heat energy • a chemical combination of two or more elements • a group of atoms held together by chemical bonds • the path or orbit electrons follow around the nucleus of an atom • ...

Reactions 2014-04-14

Reactions crossword puzzle
Across
  1. chemical bond formed when atoms share three pairs of electrons
  2. chemical reaction that breaks down into simpler products
  3. ion that is made of more than one atom
  4. Force that holds atoms together
  5. anything that has mass and occupies space
  6. Number in a chemical formula that tells the number of atoms in a molecule or the ration of elements in a compound
  7. part of solution present in a lesser amount and dissolved by the solvent
  8. solid that forms from a solution during chemical reaction.
Down
  1. substance formed as result of chemical reaction
  2. mixture of two or more elements, one of which is metal
  3. substance that doesn't change identity
  4. Group of atoms that become electrically charged
  5. Compound that consists of positive and negative ions
  6. orderly, three dimensional pattern of ions or atoms in a solid
  7. study of the properties of matter
  8. system in which matter can enter from or escape to the surrounding
  9. chemical bond formed when atoms share two pairs of electrons
  10. substance that undergoes change in a chemical reaction
  11. covalent bond in which electrons are shared equally
  12. attraction between oppositely charged ions

20 Clues: Force that holds atoms together • study of the properties of matter • substance that doesn't change identity • ion that is made of more than one atom • anything that has mass and occupies space • attraction between oppositely charged ions • substance formed as result of chemical reaction • Group of atoms that become electrically charged • ...

your mom 2023-12-11

your mom crossword puzzle
Across
  1. a chemical reaction in which one element replaces another in a compound.
  2. a mathematical sentence that has two equal sides separated by an equal sign.
  3. the process by which dead organic substances are broken down into simpler organic or inorganic matter
  4. Chemical reactions that absorb (or use) energy overall
  5. a system for arranging the chemical elements.
  6. the appearance or form of the matter changes but the kind of matter in the substance does not.
  7. formed by the equal sharing of electrons from both participating atoms
Down
  1. the production of chemical compounds by reaction from simpler materials
  2. a reaction in which energy is released in the form of light or heat.
  3. occur when parts of two ionic compounds are exchanged, making two new compounds
  4. one of the first chemical reactions intentionally controlled by humans.
  5. a chemical element (such as boron, carbon, or nitrogen) that lacks the characteristics of a metal.
  6. the starting materials in a reaction that undergo a chemical change to form a product.
  7. opaque, lustrous elements that are good conductors of heat and electricity.
  8. any change that causes a new substance to be formed.
  9. a subatomic particle with a positive electrical charge
  10. a measure of how readily a substance undergoes a chemical reaction.
  11. the measurement of how tightly a material is packed together.
  12. Ionic bonds result from the attraction between oppositely charged ions.

19 Clues: a system for arranging the chemical elements. • any change that causes a new substance to be formed. • Chemical reactions that absorb (or use) energy overall • a subatomic particle with a positive electrical charge • the measurement of how tightly a material is packed together. • a measure of how readily a substance undergoes a chemical reaction. • ...

Just for Fun 2019-05-02

Just for Fun crossword puzzle
Across
  1. Non-metals that are not reactive
  2. A substance that cannot be broken down into simpler substances by chemical means
  3. When atoms of two or more different non-metals combined, a _____ compound is formed
  4. Any substance with a pH of 7 when it is in aqueous solution
  5. The horizontal rows of a periodic table are called _______
  6. A type of chemical reaction where two elements combine to form a compound
  7. A positively charged ion
  8. The number of protons in an atom of an element
  9. The substance(s) that is/are produced during a chemical reaction
  10. A negatively charged ion
  11. A substance with a pH of less than 7 when it is in aqueous solution
Down
  1. A substance with a pH of greater than 7 when it is in aqueous solution
  2. A chemical reaction between an acid and a base that produces water and salt
  3. Metal elements that have high atomic mass
  4. Anything that has mass and volume
  5. A suspension of small, solid particles formed during a chemical reaction
  6. A substance that take part in and undergoes change during a chemical reaction
  7. A combination of pure substances is called a _______
  8. A pure substance made from two or more elements that are combined together chemically
  9. A bond formed when valence electrons are shared

20 Clues: A positively charged ion • A negatively charged ion • Non-metals that are not reactive • Anything that has mass and volume • Metal elements that have high atomic mass • The number of protons in an atom of an element • A bond formed when valence electrons are shared • A combination of pure substances is called a _______ • ...

Unit 3 Crossword 2014-11-12

Unit 3 Crossword crossword puzzle
Across
  1. the interaction between oxygen molecules and all the different substances they may contact
  2. Coefficients are the numbers placed before the reactants in a chemical equation
  3. absorbs energy in the form of heat
  4. Equation consists of the chemical formulas of the reactants and the chemical formula of the products
  5. he concentration of reactants and products participating in a chemical reaction exhibit no net change over time
  6. undergoes change
  7. one element replaces another element in a compound
  8. cause a substance to be deposited in solid from a solution
  9. a substance that increases the rate of a chemical reaction
Down
  1. Rate the measure of change in concentration of the reactants
  2. any chemical reaction that involves the gaining of electrons
  3. production of chemical compounds that react from simpler materials
  4. process of burning something
  5. Result of change
  6. release of energy in the form of heat
  7. cations and anions of elements switch places
  8. decay; the process of decay

17 Clues: Result of change • undergoes change • decay; the process of decay • process of burning something • absorbs energy in the form of heat • release of energy in the form of heat • cations and anions of elements switch places • one element replaces another element in a compound • cause a substance to be deposited in solid from a solution • ...

8th Grade Chemistry 2013-06-12

8th Grade Chemistry crossword puzzle
Across
  1. negatively charged particles in atoms
  2. joining of atoms to form new substances
  3. smallest particle of matter and cannot be separated
  4. pure substance that can't be separated into simpler substances
  5. chemical and physical properties of elements are periodic functions of their atomic number
  6. center of the atom in a positively charged region
  7. a change a substance undergoes that changes its properties
  8. representation of an object or system
  9. vertical columns on the periodic table
  10. regular repeating pattern
  11. force of attraction that holds two atoms together
  12. good conductors, malleable, ductile, and shiny
  13. horizontal rows on the periodic table
Down
  1. description of a chemical reaction using chemical symbols and formulas
  2. notation for a compound that uses chemical symbols and numbers
  3. starting materials in a chemical reaction
  4. outermost energy level in an atom
  5. poor conductors, dull
  6. ending substance in a chemical reaction
  7. semi conductors, have properties of metals and nonmetals

20 Clues: poor conductors, dull • regular repeating pattern • outermost energy level in an atom • negatively charged particles in atoms • representation of an object or system • horizontal rows on the periodic table • vertical columns on the periodic table • joining of atoms to form new substances • ending substance in a chemical reaction • starting materials in a chemical reaction • ...

Science 2017-05-18

Science crossword puzzle
Across
  1. a simply sugar produce by photosynthesis
  2. a series of chemical reaction
  3. chemical that take part in chemical reaction
  4. type of acid
  5. type of gas
  6. endothermic reaction that takes place
  7. written description
  8. rain
  9. chemical produce in chemical reaction
Down
  1. boom
  2. digestion
  3. type of gas
  4. the movement of chemicals

13 Clues: boom • rain • digestion • type of gas • type of gas • type of acid • written description • the movement of chemicals • a series of chemical reaction • endothermic reaction that takes place • chemical produce in chemical reaction • a simply sugar produce by photosynthesis • chemical that take part in chemical reaction

Chemical Change 2014-05-12

Chemical Change crossword puzzle
Across
  1. change/A change that results in a new substances being formed
  2. chemical reaction that involves a combination of oxygen
  3. or phase of a substance
  4. process that involves oxygen, like burning a flame
  5. properties/properties that can be observe by your 5 senses
  6. chemical reaction that involves oxygen to produce a flame
  7. substance that you begin with in a chemical reaction
  8. chemical reaction that wears away a metal
Down
  1. a metal by covering it with a more reactive metal that will corrode first
  2. properties/properties that can describe how a substances
  3. substance that starts or speeds up a chemical reaction
  4. substance that is produced with in a chemical reaction
  5. change/A change that does not form a new substances but may form different states
  6. corrosion of iron
  7. catalyst for living things

15 Clues: corrosion of iron • or phase of a substance • catalyst for living things • chemical reaction that wears away a metal • process that involves oxygen, like burning a flame • substance that you begin with in a chemical reaction • substance that starts or speeds up a chemical reaction • substance that is produced with in a chemical reaction • ...

U11 Vocabulary-Reactions & Bonding 2026-03-24

U11 Vocabulary-Reactions & Bonding crossword puzzle
Across
  1. A substance that speeds up the rate of a chemical reaction without being consumed or permanently changed.
  2. A solid in which the particles are arranged in a regular, repeating three-dimensional pattern.
  3. A combination of chemical symbols and subscripts that shows the types and numbers of atoms in a compound.
  4. A chemical reaction in which the positive ions of two ionic compounds exchange places to form two new compounds.
  5. The numbers placed in front of chemical formulas in a balanced equation to show the relative amounts of reactants and products.
  6. A chemical reaction in which a substance reacts rapidly with oxygen, producing heat and light (usually a hydrocarbon + O₂ → CO₂ + H₂O).
  7. A symbolic representation of a chemical reaction using formulas and symbols for reactants and products.
  8. The force of attraction between positively charged metal ions and the surrounding sea of mobile valence electrons.
  9. The energy stored in the chemical bonds of substances; released or absorbed during chemical reactions.
Down
  1. The mass in grams of one mole of a substance; numerically equal to the atomic or formula mass in amu.
  2. A chemical bond formed by the sharing of one or more pairs of electrons between two atoms.
  3. A chemical reaction in which a single compound breaks down into two or more simpler substances.
  4. A chemical reaction that absorbs heat energy from the surroundings (feels cold; ΔH is positive).
  5. A chemical bond formed by the electrostatic attraction between oppositely charged ions (usually a metal and a nonmetal).
  6. A chemical reaction that releases heat energy to the surroundings (feels hot; ΔH is negative).
  7. The force of attraction that holds atoms or ions together in a compound.
  8. A diagram that shows the valence electrons of an atom or molecule as dots around the symbol (also called a Lewis dot structure).
  9. A negatively charged ion formed when an atom or group of atoms gains one or more electrons.
  10. A positively charged ion formed when an atom or group of atoms loses one or more electrons.
  11. The smallest unit of a covalent compound that retains the properties of that compound; a group of atoms held together by covalent bonds.
  12. An atom or group of atoms that has a positive or negative charge due to the loss or gain of electrons.
  13. A mixture of two or more metals (or a metal and a nonmetal) that has metallic properties.
  14. The state in which the forward and reverse rates of a reversible chemical reaction are equal, so concentrations remain constant.
  15. The SI unit for amount of substance; contains 6.02 × 10²³ particles (Avogadro’s number).

24 Clues: The force of attraction that holds atoms or ions together in a compound. • The SI unit for amount of substance; contains 6.02 × 10²³ particles (Avogadro’s number). • A mixture of two or more metals (or a metal and a nonmetal) that has metallic properties. • A chemical bond formed by the sharing of one or more pairs of electrons between two atoms. • ...

Just for Fun 2019-05-02

Just for Fun crossword puzzle
Across
  1. Any substance with a pH of 7 when it is in aqueous solution
  2. Anything that has mass and volume
  3. A substance that take part in and undergoes change during a chemical reaction
  4. A combination of pure substances is called a _______
  5. A substance with a pH of less than 7 when it is in aqueous solution
  6. A suspension of small, solid particles formed during a chemical reaction
  7. A substance with a pH of greater than 7 when it is in aqueous solution
  8. Metal elements that have high atomic mass
  9. The number of protons in an atom of an element
Down
  1. A bond formed when valence electrons are shared
  2. The substance(s) that is/are produced during a chemical reaction
  3. When atoms of two or more different non-metals combined, a _____ compound is formed
  4. A type of chemical reaction where two elements combine to form a compound
  5. A negatively charged ion
  6. A chemical reaction between an acid and a base that produces water and salt
  7. A positively charged ion
  8. Non-metals that are not reactive
  9. The horizontal rows of a periodic table are called _______
  10. A pure substance made from two or more elements that are combined together chemically
  11. A substance that cannot be broken down into simpler substances by chemical means

20 Clues: A negatively charged ion • A positively charged ion • Non-metals that are not reactive • Anything that has mass and volume • Metal elements that have high atomic mass • The number of protons in an atom of an element • A bond formed when valence electrons are shared • A combination of pure substances is called a _______ • ...

Chemistry Vocabulary 2025-04-25

Chemistry Vocabulary crossword puzzle
Across
  1. A simple part in matter
  2. Together,in group
  3. Atoms that are together
  4. Makes up matter
  5. Form of energy that moves around
  6. Measurement of hot and cold
  7. Lot of energy breaking bonds
  8. Stuff, takes up space
  9. Measurement of what's inside something
  10. Result of reaction
  11. Particle in matter
Down
  1. Matter changing
  2. Creates new materials
  3. Characteristics of a substance
  4. Something that can be measured
  5. A link with particles
  6. Blend of substances
  7. The amount in stuff
  8. Reaction to chemical
  9. Heat being released
  10. Combined elements
  11. Response from chemicals

22 Clues: Matter changing • Makes up matter • Together,in group • Combined elements • Result of reaction • Particle in matter • Blend of substances • The amount in stuff • Heat being released • Reaction to chemical • Creates new materials • A link with particles • Stuff, takes up space • A simple part in matter • Atoms that are together • Response from chemicals • Measurement of hot and cold • ...

Science Crossword 2013-11-14

Science Crossword crossword puzzle
Across
  1. cause corrosion
  2. a container consisting of one or more cells
  3. a scientific procedure undertaken to make a discovery
  4. a substance with particular chemical properties
  5. the process of burning something
  6. a chemical reaction in which an acid and a base interact with the formation of a salt
  7. releasing heat
  8. the branch of science concerned with the substances
Down
  1. a chemical reaction that occurs between an acid and a base
  2. substances studied in chemistry
  3. indicates the state or level of something
  4. able to be dissolved
  5. absorbing heat
  6. incapable of being dissolved
  7. reacts with acids to form salts
  8. the smallest particle of a chemical element
  9. a substance that undergoes change during a reaction
  10. a particular kind of matter
  11. table a table of the chemical elements
  12. scale a scale from 0 to 14 of the acidity or alkalinity

20 Clues: absorbing heat • releasing heat • cause corrosion • able to be dissolved • a particular kind of matter • incapable of being dissolved • substances studied in chemistry • reacts with acids to form salts • the process of burning something • table a table of the chemical elements • indicates the state or level of something • a container consisting of one or more cells • ...

William Smithmyer - Chapter 13 2016-10-12

William Smithmyer - Chapter 13 crossword puzzle
Across
  1. A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
  2. A measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration.
  3. Description of a solution in which the hydroxide ion concentration is higher than the hydronium ion concentration; also sometimes called alkaline.
  4. A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases.
  5. The reacting substances in a chemical reaction.
  6. Description of a chemical reaction in which there is a net absorption of energy.
  7. A substance that donates a hydrogen.
  8. A polyatomic ion made by removing a proton from a water molecule.
Down
  1. The minimum energy required in order for a chemical reaction to proceed.
  2. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  3. Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration.
  4. A polyatomic ion made by adding a proton to a water molecule.
  5. Description of a chemical reaction in which there is a net release of energy.
  6. The new materials formed in a chemical reaction.
  7. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.

15 Clues: A substance that donates a hydrogen. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • A polyatomic ion made by adding a proton to a water molecule. • A polyatomic ion made by removing a proton from a water molecule. • The minimum energy required in order for a chemical reaction to proceed. • ...

Chemical Equation and Reaction - By Shehran 10-L 2024-05-13

Chemical Equation and Reaction - By Shehran 10-L crossword puzzle
Across
  1. A chemical reaction in which two compounds exchange positive ions and form two new compounds
  2. Reactions in which oxidation and reduction take place together
  3. The spoiling of food caused by the oxidation of fats and oils present in it
  4. Deterioration of metals by the reaction of water and oxygen with the formation of an oxide layer on the metal surface
  5. A reaction that releases energy in the form of light or heat
  6. When two or more reactants combine with each other to form a new product
  7. A process in which a chemical substance changes because of the addition of oxygen
Down
  1. A reaction in which heat is absorbed from the surroundings
  2. A reaction in which a compound breaks down into two or more simpler substances
  3. A reaction in which a more reactive element displaces a less reactive element from its compound
  4. A substance(chemical) which slows down oxidation
  5. A substance that undergoes change in a chemical reaction
  6. Equations with simply the chemical formulas of the products and reactants, no mention of state, and no atom balancing on either side of the equation
  7. The insoluble solid which settles down after the completion of the chemical reaction
  8. Substance that speeds up a chemical reaction

15 Clues: Substance that speeds up a chemical reaction • A substance(chemical) which slows down oxidation • A substance that undergoes change in a chemical reaction • A reaction in which heat is absorbed from the surroundings • A reaction that releases energy in the form of light or heat • Reactions in which oxidation and reduction take place together • ...

Chemical Reaction Vocabulary 2013-12-16

Chemical Reaction Vocabulary crossword puzzle
Across
  1. states that mass can't be created or destroyed in chemical or physical changes.
  2. a representation of a chemical reaction that uses symbols to show the relationship.
  3. the smallest amount of energy that need to react.
  4. any compound that increases the number of hydronium ion when dissolved.
  5. process in which 1 or more substances change to make to make 1 or more new substances.
Down
  1. a combination of chemical symbols and numbers to represent a substance.
  2. substance that changes color in the presence of a acid or a base.
  3. chemical reaction a that requires heat.
  4. a reaction in which heat is released.
  5. any compound that increases the number of hydronium ion when dissolved in water.
  6. states energy can't be destroyed or created.
  7. substance that slows down or stops a chemical reaction.
  8. a substance that speeds up a reaction without being permanently changed.

13 Clues: a reaction in which heat is released. • chemical reaction a that requires heat. • states energy can't be destroyed or created. • the smallest amount of energy that need to react. • substance that slows down or stops a chemical reaction. • substance that changes color in the presence of a acid or a base. • ...

Chemical Reaction Vocabulary 2022-02-23

Chemical Reaction Vocabulary crossword puzzle
Across
  1. Letters and numbers showing the atoms to make a substance
  2. process in which atoms rearrange to form new substances
  3. Tiny pieces of matter that everything is made of
  4. Something that helps us understand by making it easier to see
  5. Negative pieces of an atom, outside the nucleus
  6. Something that is made of atoms
Down
  1. Positive pieces of an atom, in nucleus
  2. The relative size of things
  3. a starting substance that is part of a chemical reaction
  4. A group of atoms joined together in a particular way
  5. No charge, in nucleus
  6. Something that can be observed in a substance
  7. an ending substance that is made during a chemical reaction

13 Clues: No charge, in nucleus • The relative size of things • Something that is made of atoms • Positive pieces of an atom, in nucleus • Something that can be observed in a substance • Negative pieces of an atom, outside the nucleus • Tiny pieces of matter that everything is made of • A group of atoms joined together in a particular way • ...

Haley Nowak- chapter 13 2016-10-12

Haley Nowak- chapter 13 crossword puzzle
Across
  1. a substance that donates hydrogen ions
  2. a measure of the acidity of a solution equal to the negative logarithm of the hydronium ion concentration
  3. the process by which a reactant gains one or more electrons
  4. description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
  5. the minimum energy required in order for a chemical reaction to proceed
  6. description of a chemical reaction in which there is a net absorption of energy
  7. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  8. the process by which a reactant loses one or more electrons
Down
  1. the reacting substances in a chemical reaction
  2. a polyatomic ion made by adding a hydrogen ion to a water molecule
  3. a substance that accepts hydrogen ions
  4. description of a chemical reaction in which there is a net release of energy
  5. a polyatomic ion made by removing a hydrogen ion from a water molecule
  6. the new materials formed in a chemical reaction
  7. a rapid exothermic oxidation- reduction reaction between a material and a molecular oxygen

15 Clues: a substance that accepts hydrogen ions • a substance that donates hydrogen ions • the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • the process by which a reactant gains one or more electrons • the process by which a reactant loses one or more electrons • ...

Unit B - Matter and Chemical Change. 2017-11-10

Unit B - Matter and Chemical Change. crossword puzzle
Across
  1. a vertical column of elements in the periodic table
  2. change of state form a gas to a liquid
  3. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons
  4. description of how a substance interacts with other substance such as acids chemical properties are observable only when a chemical change occurs to form new substances
  5. change that result when two or more substance react to create a different substance or substance the new substances have completely different properties from the original ones.
  6. reaction chemical reactions that gives off energy
  7. group two elements in the periodic table , not including hydrogen, the most reactive of the metals
  8. a material that electric charge can move through easily
Down
  1. slow chemical reaction that occurs when oxygen hits metal
  2. Group 1 elements in the periodic table not including hydrogen the most reactive non metals
  3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and gives off energy
  4. catalyst involved in all living things
  5. mass of atom of an element calculated from the total number of protons neutrons and electrons.
  6. chemical combination of two or more elements in specific ration
  7. change of state from gas to a solid.
  8. number of protons in the nucleus of one atom of an element
  9. substance that helps a chemical reaction to proceed quickly
  10. a reaction that takes place between two elements
  11. reaction chemical reaction that absorbs energy
  12. combination of symbols that represent a compound” the formula identifies the elements into the compound the formula identifies the element s in the compound and the amount of each element
  13. of mass principle that matter is not created or destroyed. It can not be destroyed or created, the mass is always equal.
  14. ability of a substance to conduct electricity or heat
  15. amount of mass in a given volume of a substance

23 Clues: change of state from gas to a solid. • change of state form a gas to a liquid • catalyst involved in all living things • reaction chemical reaction that absorbs energy • amount of mass in a given volume of a substance • a reaction that takes place between two elements • reaction chemical reactions that gives off energy • ...

Chemistry vocabulary 2022-10-12

Chemistry vocabulary crossword puzzle
Across
  1. The number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  2. A substance made up of two or more different types of atoms bonded together.
  3. An atom of one element that has a different number of neutrons than another atom of the same element.
  4. A negatively charged particle located outside of an atom’s nucleus about 2000 times smaller than either a proton or neutron.
  5. number The total number of protons in an atom’s nucleus.
  6. A combination of two or more substances that do not combine chemically, but remain the same individual substances.
  7. The number before a chemical formula indicating how many molecules are involved in a chemical reaction.
  8. change A usually reversible change in the physical properties of a substance, as size and shape.
  9. of conservation of mass A scientific law stating that during a chemical reaction, matter is not created nor destroyed.
  10. A substance that is present at the beginning of a chemical reaction, takes part in the reaction, and is changed into a new substance.
  11. A substance that is not uniform throughout.
  12. A group of atoms that are held together by covalent bonds so that they move together.
  13. A neutral particle located in an atom’s nucleus.
Down
  1. A positively charged particle located in an atom’s nucleus.
  2. A substance formed by a chemical reaction; made by the rearrangement of atoms and bonds in reactants.
  3. mass number The total number of protons and neutrons in an atom’s nucleus.
  4. A substance that cannot be broken down into a simpler substance by ordinary chemical changes.
  5. An atom of group of atoms that has a positive or negative electric charge; forms by gaining or losing electrons.
  6. A solid substance that forms as a result of a chemical reaction between chemicals in two liquids.
  7. A substance that increases the rate of a chemical reaction but is not consumed by the reaction.
  8. A substance that is evenly spread throughout. Particles not distinguishable.
  9. a vertical column in the periodic table of the elements that have similar properties.
  10. a horizontal row in the periodic table of the elements that have varying properties.
  11. change A change of one substance into another substance.

24 Clues: A substance that is not uniform throughout. • A neutral particle located in an atom’s nucleus. • change A change of one substance into another substance. • number The total number of protons in an atom’s nucleus. • A positively charged particle located in an atom’s nucleus. • mass number The total number of protons and neutrons in an atom’s nucleus. • ...

Law Of Conservation of Mass and Balancing Equations 2025-04-29

Law Of Conservation of Mass and Balancing Equations crossword puzzle
Across
  1. The basic units of matter and the defining structure of elements.
  2. Substances formed as a result of a chemical reaction.
  3. The amount of matter in an object.
  4. The principle that mass is neither created nor destroyed during a chemical reaction.
  5. A chemical equation in which the number of atoms for each element is the same on both sides.
  6. Pure substances consisting of only one type of atom.
  7. Relating to chemistry or the interactions of substances as studied in chemistry.
  8. A small number written below and to the right of a chemical symbol in a formula, showing how many atoms of that element are present.
Down
  1. The process by which one or more substances change to produce new substances.
  2. True or False: Balancing equations proves the Law of Conservation of Mass.
  3. Anything that has mass and takes up space.
  4. Substances that start a chemical reaction.
  5. A rule that describes a consistent natural phenomenon (in science, such as the Law of Conservation of Mass).
  6. In a chemical reaction, the mass of the reactants is ___ to the mass of the products.
  7. A number placed in front of a chemical formula to show how many molecules are involved.
  8. A symbolic representation of a chemical reaction.

16 Clues: The amount of matter in an object. • Anything that has mass and takes up space. • Substances that start a chemical reaction. • A symbolic representation of a chemical reaction. • Pure substances consisting of only one type of atom. • Substances formed as a result of a chemical reaction. • The basic units of matter and the defining structure of elements. • ...