chemical reaction Crossword Puzzles

Atoms, Elements, Compounds & Molecules 2023-01-30

Atoms, Elements, Compounds & Molecules crossword puzzle
Across
  1. a sign (arrow) that separates the reactants from the products in a chemical equation
  2. the molecule(s) that react in any chemical reaction
  3. two or more substances combined, but not chemically (only physically)
  4. the simplest type of pure substance that cannot be broken down any further
  5. a number that comes before a molecule and tells how many total molecules there are
  6. a shorthand way of representing the name or a molecule or compound
  7. two or more atoms, of different elements only, chemically combined
Down
  1. a reaction that absorbs (uses) heat, the temperature decreases
  2. a substance made up of only one type of particle (ex: elements and compounds)
  3. a shorthand way of representing the name of an element
  4. two or more atoms, of the same or different element, chemically combined
  5. a reaction that releases (gives off) energy in the form of heat, the temperature increases
  6. the new molecule(s) that are produced after a chemical reaction takes place
  7. a small number to the lower right of a chemical symbol that tells how many atoms there are for an element
  8. the smallest part of an element that has the properties of the element

15 Clues: the molecule(s) that react in any chemical reaction • a shorthand way of representing the name of an element • a reaction that absorbs (uses) heat, the temperature decreases • a shorthand way of representing the name or a molecule or compound • two or more atoms, of different elements only, chemically combined • ...

Pamela Iza 2022-01-18

Pamela Iza crossword puzzle
Across
  1. The minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
  2. One substance is transformed into one or more different substances.
  3. Is someone or something unique, distinctive or definite.
  4. is the form of an object or its external boundary, outline, or external surface, as opposed to other properties such as color, texture, or material type.
  5. Is typically the chemical species being observed in a chemical reaction.
  6. Large molecules composed of one or more chains of amino acids.
  7. Is a system composed of many components which may interact with each other.
Down
  1. Are organic molecules that act as catalysts for chemical reactions,they accelerate the rate of reaction.
  2. Is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
  3. Is a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one.
  4. An action or something that ties together, attaches or holds down.
  5. A model for enzyme-substrate interaction.

12 Clues: A model for enzyme-substrate interaction. • Is someone or something unique, distinctive or definite. • Large molecules composed of one or more chains of amino acids. • An action or something that ties together, attaches or holds down. • One substance is transformed into one or more different substances. • ...

exothermic/endothermic 2025-02-13

exothermic/endothermic crossword puzzle
Across
  1. absorbs heat
  2. the substances formed as a result of a chemical reaction.
  3. group of atoms bonded together
  4. a substance that is present at the beginning of a chemical reaction.
Down
  1. releases heat
  2. a pure substance made up of two or more different chemical elements that are chemically bonded together in a fixed ratio
  3. energy a energy that in a object that gives temperature
  4. known as thermal energy
  5. gives you strength to do daily stuff in your life
  6. reaction

10 Clues: reaction • absorbs heat • releases heat • known as thermal energy • group of atoms bonded together • gives you strength to do daily stuff in your life • energy a energy that in a object that gives temperature • the substances formed as a result of a chemical reaction. • a substance that is present at the beginning of a chemical reaction. • ...

Unit 1 Crossword 2024-01-17

Unit 1 Crossword crossword puzzle
Across
  1. biomolecule that enzymes are a part of
  2. term that means it contains carbon
  3. enzymes make a reaction go _______
  4. lipids, carbohydrates, proteins, and nucleic acids are called
  5. the monomer of lipids
  6. single subunits
  7. term for nonliving things
  8. protein's function is to _______ with muscle?
  9. lipids deal with which type of energy storage?
  10. speeds up a chemical reaction
  11. Energy, the energy needed for a reaction to happen
  12. information, nucleic acid's main function is to store & transmit
  13. pH lower than 7
  14. the activation energy ______ when an catalyst
  15. an example of carbohydrates
  16. a factor that affects enzyme activity
  17. when an enzyme cannot work no more
Down
  1. the monomer of nucleic acids
  2. multiple subunits together
  3. pH higher than 7
  4. enzymes have been also known as a ____ & key
  5. the reactant that binds to the enzyme
  6. Acids, the monomer of proteins
  7. what is released after a chemical reaction is complete
  8. what the active site is a part of
  9. an example of protein
  10. pH = 7
  11. the enzyme changes ________ when it is denatured
  12. Acids, biomolecule that stores genetic information
  13. Site, what the substrate binds to
  14. another name for monosaccharides
  15. the main source of energy
  16. disaccharide means ____ sugars
  17. acids, three (3) are needed in a triglyceride
  18. a form of nucleic acids
  19. what undergoes change during a chemical reaction (ingredients)
  20. amino acids are joined by which bonds?
  21. biomolecule responsible for insulation & waterproof
  22. term for living things
  23. an example of lipids

40 Clues: pH = 7 • single subunits • pH lower than 7 • pH higher than 7 • an example of lipids • the monomer of lipids • an example of protein • term for living things • a form of nucleic acids • term for nonliving things • the main source of energy • multiple subunits together • an example of carbohydrates • the monomer of nucleic acids • speeds up a chemical reaction • Acids, the monomer of proteins • ...

Biomolecules Ch. 2 2025-02-04

Biomolecules Ch. 2 crossword puzzle
Across
  1. A large compound formed from the combinations of many monomers
  2. Element or compound produced by a chemical reaction
  3. A measurement system used to indicate the concentration of hydrogen ions in solution
  4. The smallest units that can join together with other small units to form polymers
  5. The smallest units of most compounds
  6. Large molecules formed from monosaccharides
  7. A compound with an amino group on one end and a carboxyl group on the other end
  8. A single sugar molecule
  9. A substance that speeds up the rate of a chemical reaction
  10. Energy needed to get a reaction started
  11. A macromolecule made mainly from carbon and hydrogen atoms, includes fats and oils
  12. A compound that produces hydroxide ions in solution(pH greater than 7)
  13. Macromolecules that contain carbon, hydrogen, oxygen and nitrogen, used for growth and repair
  14. Element or compound that enters into a chemical reaction
  15. A nucleic acid that contains the sugar deoxyribose
  16. Compounds that form hydrogen ions in solution(pH less than 7)
Down
  1. A monomer of nucleic acids made up of a sugar, a phosphate group and a nitrogenous base
  2. Proteins that act as biological catalysts
  3. Macromolecules containing hydrogen, oxygen, nitrogen, carbon and phosphorus
  4. Process that changes one set of chemicals into another set of chemicals
  5. Compounds made up of carbon, hydrogen and oxygen atoms, a major source of quick energy
  6. Olive oil contains mostly these types of fatty acids
  7. A single stranded nucleic acid that contains the sugar ribose
  8. The reactant of an enzyme-catalyzed reaction
  9. The basic units of matter

25 Clues: A single sugar molecule • The basic units of matter • The smallest units of most compounds • Energy needed to get a reaction started • Proteins that act as biological catalysts • Large molecules formed from monosaccharides • The reactant of an enzyme-catalyzed reaction • A nucleic acid that contains the sugar deoxyribose • ...

Lesson 1.4: Law of Conservation of Mass 2025-09-15

Lesson 1.4: Law of Conservation of Mass crossword puzzle
Across
  1. the amount of matter in an object.
  2. a description of a reaction using element symbols and chemical formulas.
  3. the substances resulting from a chemical reaction.
  4. a chart of the elements arranged into rows and columns according to their physical and chemical properties.
  5. law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction.
Down
  1. a small particle that is the building block of matter.
  2. a process in which atoms of one or more substances rearrange to form one or more new substances.
  3. the starting materials in a chemical reaction.
  4. a system where matter cannot enter or leave but energy can be exchanged.

9 Clues: the amount of matter in an object. • the starting materials in a chemical reaction. • the substances resulting from a chemical reaction. • a small particle that is the building block of matter. • a description of a reaction using element symbols and chemical formulas. • a system where matter cannot enter or leave but energy can be exchanged. • ...

Mixtures/Solutions and Chemical Change 2022-01-10

Mixtures/Solutions and Chemical Change crossword puzzle
Across
  1. - A mixture in which particles can be seen and easily separated by settling or filtration
  2. - Mixture that has a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another
  3. - Mixture that contains small, undissolved particles that don't settle out
  4. Reaction - A reaction that releases energy; usually in the form of heat
  5. Change - A change in which one or more substances combine or break apart to form new substances
  6. - How slowly or quickly something happens
  7. Change - A change that alters the form or appearance of a material, but doesn't make the material into another substance
Down
  1. - The part of a solution that is usually present in the largest amount and can dissolve a solute
  2. - When a substance fully disappears into another substance to form a solution
  3. - A measure of how much solute can dissolve in a given solvent at a given temperature
  4. - The part of a solution that is dissolved by a solvent
  5. - A substance that is formed as a result of a chemical reaction
  6. Two or more substances that are together in the same place, but their atoms aren't chemically bonded
  7. - A substance that enters into a chemical reaction
  8. Reaction - A reaction that absorbs energy

15 Clues: Reaction - A reaction that absorbs energy • - How slowly or quickly something happens • - A substance that enters into a chemical reaction • - The part of a solution that is dissolved by a solvent • - A substance that is formed as a result of a chemical reaction • Reaction - A reaction that releases energy; usually in the form of heat • ...

Signs of Chemical Reactions 2025-05-01

Signs of Chemical Reactions crossword puzzle
Across
  1. Lightest state of matter
  2. Moisture ex) H2O
  3. Smell
  4. Type of reaction releasing heat
  5. the starting materials in a reaction
  6. emission of light by a substance not due to heating
  7. pocket of gas in a solid/liquid
  8. Cannot be reversed
  9. which one substance or molecule is reduced and another oxidised
Down
  1. a substance that is present at the end of a chemical reaction
  2. Increase in temperature
  3. Decrease in temperature
  4. Can be reversed
  5. Degree/Intensity of heat
  6. Shade
  7. Forms in which matter can exist
  8. Type of reaction absorbing heat

17 Clues: Shade • Smell • Can be reversed • Moisture ex) H2O • Cannot be reversed • Increase in temperature • Decrease in temperature • Lightest state of matter • Degree/Intensity of heat • Forms in which matter can exist • Type of reaction releasing heat • Type of reaction absorbing heat • pocket of gas in a solid/liquid • the starting materials in a reaction • ...

Technical Term 2021-01-06

Technical Term crossword puzzle
Across
  1. donates hydroxide ions
  2. substance increasing the rate of a chemical reaction
  3. the chemical reaction in which energy is given off in the form of heat
  4. the tendency of dissimilar particles or surfaces to stick to one another
  5. a chemical substance formed as a result of a chemical reaction
  6. an organic compound that is made of one or more chains of amino acids
Down
  1. made up of atoms that are held together by chemical bonds.
  2. a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase
  3. a substance that dissolves a solute resulting in a solution
  4. any substance that cannot be broken down into simpler substances
  5. they turn litmus paper red and phenolphthalein colorless
  6. atom that has a positive or negative charge

12 Clues: donates hydroxide ions • atom that has a positive or negative charge • substance increasing the rate of a chemical reaction • they turn litmus paper red and phenolphthalein colorless • made up of atoms that are held together by chemical bonds. • a substance that dissolves a solute resulting in a solution • ...

Enzyme Choice 2021-10-21

Enzyme Choice crossword puzzle
Across
  1. small molecules that are the building blocks of proteins
  2. the base on which an organism lives the soil is the substrate of most seed plants
  3. accompanied by the release of energy
  4. The minimum energy required for a reaction to occur
  5. the ability to do work
  6. a substance that enters into and is altered in the course of a chemical reaction
  7. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction
  8. a chemical substance formed as a result of a chemical reaction
Down
  1. any of the group of organic compounds consisting of carbon, hydrogen, and oxygen
  2. a region on the surface of an enzyme whose shape permits binding only of a specific molecular substrate that then undergoes catalysis
  3. a temporary molecule formed when an enzyme comes into perfect contact with its substrate
  4. a ketonic simple sugar found in many plants
  5. An organic compound formed when two amino acids are joined by a peptide bond
  6. the main type of sugar in the blood
  7. a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule
  8. accompanied by or requiring the absorption of

16 Clues: the ability to do work • the main type of sugar in the blood • accompanied by the release of energy • a ketonic simple sugar found in many plants • accompanied by or requiring the absorption of • The minimum energy required for a reaction to occur • small molecules that are the building blocks of proteins • a chemical substance formed as a result of a chemical reaction • ...

yolenskie jules 2022-03-08

yolenskie jules crossword puzzle
Across
  1. a process that leads to the leads to the chemical transformation
  2. of 1 mole of a substance
  3. the mass of a product that can be made in a chemical equation
  4. a formula giving the number of atoms of each of the elements present in one molecule
Down
  1. representation of a chemical reaction
  2. a reactant that is used up
  3. a number placed in front of formula to balance a chemical equation
  4. involves using relationships between reactants and products in a chemical reaction
  5. actual/theoretical x 100
  6. a ratio between the number of moles of any 2 substances in a chemical reaction

10 Clues: actual/theoretical x 100 • of 1 mole of a substance • a reactant that is used up • representation of a chemical reaction • the mass of a product that can be made in a chemical equation • a process that leads to the leads to the chemical transformation • a number placed in front of formula to balance a chemical equation • ...

Regents Review Important Vocab 2024-06-05

Regents Review Important Vocab crossword puzzle
Across
  1. the phase change in which solid particles gain enough energy to turn into the liquid phase (also known as melting)
  2. a unit that describes 6.02x1023 particles of something
  3. the total number of protons and neutrons in the nucleus of an atom
  4. the site in an electrochemical cell where reduction occurs
  5. the substance that dissolves the solute
  6. a substance that produces hydronium ions (H3O+) as the only positive ion when dissolved in water
  7. the stable valence electron configuration of eight electrons
  8. the nuclear reaction that splits large nuclei into smaller nuclei and neutrons
  9. a substance whose water solution conducts an electric current
  10. the region in an atom where an electron is most likely to be located
  11. the length of time for half of a given sample of a radioisotope to decay
  12. a substance formed in a chemical reaction, shown on the right of a reaction arrow
  13. a measure of the disorder or randomness of a system
  14. the state in which the electrons of an atom occupy higher energy levels while the lower energy levels are not filled.
  15. the changing of a nucleus of one element into that of a different element
  16. the site in an electrochemical cell where oxidation occurs
  17. the attraction of a hydrogen atom in one molecule for a N, O, or F atom in another molecule
  18. the reaction of an alkali and a fat to produce glycerol and a soap
  19. a substance composed to two or more elements that are chemically combined in definite proportions by mass
  20. a _________ bond is formed by the unequal sharing of a pair of electrons between two nuclei
  21. a mixture in which the substances are not uniformly distributed
  22. the subatomic particle located in the nucleus that has a mass of 1 and no charge
  23. a measure of the attraction of a nucleus for a bonded electron
  24. one of two or more different forms of an element in the same phase
  25. the electrons in the outer energy level of an atom
  26. the positively charged particle in the nucleus of an atom
  27. a starting substance in a reaction, shown on the left of a reaction arrow
  28. a mixture in which the substances are uniformly distributed
  29. the phase change in which a gas changes directly into a solid
  30. one of a homologous series of saturated hydrocarbons
  31. a transmutation caused by bombarding a nucleus with a high-energy particle, such as a neutron or an alpha particle
  32. a part of a voltaic cell that connects two containers and allows the flow of ions
  33. an unstable nucleus that is radioactive
  34. a chemical reaction that releases heat, shown by a negative heat of reaction
  35. the property of metals that allows them to be hammered into shapes
Down
  1. an ________ bond is formed by the transfer of electrons from one atom to another
  2. substances that cannot be broken down or decomposed into simpler substances by chemical means
  3. the amount of energy needed to remove the most loosely held electron from a neutral atom
  4. the substance being dissolved
  5. a phase of matter without definite shape or volume
  6. a reaction in which the composition of a substance is changed
  7. a chemical reaction between an alcohol and an acid to produce an ester and water
  8. matter is neither created nor destroyed in chemical reactions
  9. a cell that requires electricity to cause a nonspontaneous chemical reaction to occur
  10. the state in which the electrons of an atom occupy the lowest available energy levels
  11. a chemical reaction that absorbs heat, shown by a positive heat of reaction
  12. a condition in which the rates of opposing reactions are equal
  13. a solution that contains more solute than can dissolve in a saturated solution at a given temperature
  14. an _________________ organic compound contains one or more double or triple bonds
  15. one of a homologous series of unsaturated hydrocarbons that contain one double bond
  16. a bond formed by the sharing of electrons between two nuclei
  17. a phase of matter with definite volume but no definite shape
  18. the amount of energy needed to start a reaction and form an activated complex from reactants
  19. a measure of how much solute will dissolve in a certain amount of solvent at a specific temperature
  20. the number of protons in the nucleus of an atom
  21. a change that does not alter the chemical properties of the substance
  22. the simplest whole number ratio in which atoms combine to form compounds
  23. a horizontal row on the periodic table
  24. the loss of electrons and an increase in oxidation state
  25. _____________ solution: a solution in which more solute can be dissolved at a given temperature
  26. a __________ organic compound contains only single covalent bonds
  27. the phase change in which a solid changes directly into a gas
  28. a __________ bond is formed by the equal sharing of a pair of electrons between two nuclei
  29. the nuclear reaction that combines light nuclei into a heavier nucleus
  30. organic compound containing only carbon and hydrogen
  31. the gain of electrons and the loss of oxidation number
  32. a covalently bonded group of atoms that have a net electric charge
  33. a reaction in which one element replaces a less reactive element in a compound
  34. the organic reaction in which many small units are joined together to form a long chain
  35. the measure of the average kinetic energy of a substance’s particles
  36. one of a homologous series of unsaturated hydrocarbons that contain one triple bond
  37. a diagram that shows valence electrons as dots around the atomic symbol
  38. base, a substance that produces hydroxide ions (OH-) as the only negative ion when dissolved in water
  39. the reaction between an acid and a base that produces water and a salt
  40. an electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
  41. _____________ solution: a solution containing the maximum amount of solute that can be dissolved at a given temperature
  42. the laboratory process of determining the concentration of an unknown solution by a reaction with a solution of known concentration
  43. an element that has both metallic and nonmetallic properties
  44. compounds with the same molecular formula but different structural arrangements
  45. a vertical column on the periodic table

80 Clues: the substance being dissolved • a horizontal row on the periodic table • the substance that dissolves the solute • a vertical column on the periodic table • an unstable nucleus that is radioactive • the number of protons in the nucleus of an atom • a phase of matter without definite shape or volume • the electrons in the outer energy level of an atom • ...

Chemistry Bonus 2024-05-07

Chemistry Bonus crossword puzzle
Across
  1. a mixture where individual particles can't be distinguished.
  2. elements that do not exist in nature as single atoms but as two atoms bonded together
  3. a device used to measure the energy absorbed or released as heat in a chemical reaction.
  4. who created the first periodic table
  5. substance that is dissolved
  6. a set of four variables used to describe the location of electrons within an atom
  7. microscopic particles are dispersed evenly in another substance
  8. substance that does the dissolving
  9. a substance that speeds up a chemical reaction without itself undergoing any chemical change.
  10. occurs when the reaction rates of a reversible reaction for the forward and reverse reactions are equal.
  11. discovered the proton
Down
  1. a mixture that is not uniform
  2. number defined by the amount of protons in the nucleus
  3. a standard unit that stands for 6.02 x 10^23
  4. rule that states atoms will gain, lose, or share valence electrons to attain 8 valence electrons
  5. the mass of an atom given in amu
  6. a substance that increases the concentration of hydrogen ions in an aqueous solution.
  7. solution is boiled to separate liquids
  8. length of time it takes for half of the radioactive atoms of a specific radioactive isotope to decay
  9. name of elements in the column all the way to the right on the periodic table
  10. stated the uncertainty principle

21 Clues: discovered the proton • substance that is dissolved • a mixture that is not uniform • the mass of an atom given in amu • stated the uncertainty principle • substance that does the dissolving • who created the first periodic table • solution is boiled to separate liquids • a standard unit that stands for 6.02 x 10^23 • number defined by the amount of protons in the nucleus • ...

Biomolecules 2025-04-29

Biomolecules crossword puzzle
Across
  1. releases energy by breaking down glucose and other foods in the presence of oxygen
  2. an organic compound that is a major component of dipids and a building block for the fat in the body
  3. a large molecule made up of monomers that are joined together
  4. fat tissues that help keep an organism warm
  5. uses energy of the sun to synthesize organic compounds
  6. makes a reaction start faster
  7. another name for a biomolecule needed by all living things
  8. proteins that act as a catalyst to accelerate a reaction
  9. occurs within a cell or between cells that regulates cell function
  10. destruction of an enzyme by tempture or other factors
Down
  1. a restricted regoin of an enzyme molecule which binds the subrate
  2. molecule inside cells that contains genetic information
  3. a molecule that has all genetic imformation of an organism
  4. used for fast energy and spikes isolation levels
  5. the minimum amount of energy required for chemical reactions to occur
  6. a molecule that can be bonded to another identical molecule,the smallest part of a biomulecule
  7. the substance an enzyme acts on
  8. the end result of a biological or chemical process,what was made or created
  9. substances found in all living things that are necessary for biological process
  10. a substance that is present at the start of a chemical reaction and is altered during the reaction

20 Clues: makes a reaction start faster • the substance an enzyme acts on • fat tissues that help keep an organism warm • used for fast energy and spikes isolation levels • destruction of an enzyme by tempture or other factors • uses energy of the sun to synthesize organic compounds • molecule inside cells that contains genetic information • ...

Mixtures/Solutions and Chemical Change 2022-01-10

Mixtures/Solutions and Chemical Change crossword puzzle
Across
  1. / A measure of how much solute can dissolve in a given solvent at a given temperature
  2. / The part of a solution that is dissolved by a solvent
  3. / The part of a solution that is usually present in the largest amount and can dissolve a solute
  4. / A substance that enters into a chemical reaction
  5. Reaction / A reaction that absorbs energy
  6. Change / A change in which one or more substances combine or break apart to form new substances
Down
  1. / A substance that is formed as a result of a chemical reaction
  2. / A mixture in which particles can be seen and easily separated by settling or filtration
  3. / When a substance fully disappears into another substance to form a solution
  4. / Two or more substances that are together in the same place, but their atoms aren't chemically bonded
  5. / Mixture that has a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another
  6. Reaction / A reaction that releases energy; usually in the form of heat
  7. / How slowly or quickly something happens
  8. Change / A change that alters the form or appearance of a material, but doesn't make the material into another substance
  9. / Mixture that contains small, undissolved particles that don't settle out

15 Clues: / How slowly or quickly something happens • Reaction / A reaction that absorbs energy • / A substance that enters into a chemical reaction • / The part of a solution that is dissolved by a solvent • / A substance that is formed as a result of a chemical reaction • Reaction / A reaction that releases energy; usually in the form of heat • ...

Review of Combustion 2020-04-15

Review of Combustion crossword puzzle
Across
  1. A substance containing Hydrogen and Carbon only.
  2. A chemical made in a a reaction.
  3. An example of a fuel made from barley or maize.
  4. A gas product of incomplete combustion.
  5. A liquid product of combustion.
  6. A process where there is not enough Oxygen.
  7. An example of a fuel which is a gas and used in Bunsen.
  8. The scientific name for burning.
Down
  1. A chemical at the start of a reaction.
  2. A gas product of combustion.
  3. A substance that can be burned to release energy.
  4. A reaction in which Oxygen is gained.
  5. A reactant in the form of a gas needed for combustion.
  6. A reaction that releases a large amount of heat energy.

14 Clues: A gas product of combustion. • A liquid product of combustion. • A chemical made in a a reaction. • The scientific name for burning. • A reaction in which Oxygen is gained. • A chemical at the start of a reaction. • A gas product of incomplete combustion. • A process where there is not enough Oxygen. • An example of a fuel made from barley or maize. • ...

chemical reaction 2023-01-23

chemical reaction crossword puzzle
Across
  1. of a gas
  2. in Odor.
  3. is emitted
  4. of gas
Down
  1. of an odor.
  2. is Being Produced.
  3. change

7 Clues: change • of gas • of a gas • in Odor. • is emitted • of an odor. • is Being Produced.

Lizz 2.1 vocab 2021-10-26

Lizz 2.1 vocab crossword puzzle
Across
  1. absorbs heat energy
  2. a chemical process
  3. a change in matter
Down
  1. gives off heat energy
  2. found during chemical reaction
  3. takes up some amount of space
  4. a chemical reaction
  5. before chemical reaction occurs

8 Clues: a chemical process • a change in matter • a chemical reaction • absorbs heat energy • gives off heat energy • takes up some amount of space • found during chemical reaction • before chemical reaction occurs

Chapter 13 Caroline Davis 2020-10-19

Chapter 13 Caroline Davis crossword puzzle
Across
  1. a chemical that donates a hydrogen atom
  2. a chemical that accepts a hydrogen atom
  3. if changed, the equilibrium shifts to oppose change, until new equilibrium is reached.
  4. when there is a net absorption of energy during a chemical reaction
  5. when there is a net release of energy during a chemical reaction
Down
  1. minimum energy required to overcome the intentional breaking of bonds in reactants.
  2. The amount of energy required to pull two bonded atoms apart.
  3. a substance that lowers the activation energy of a chemical reactant, which causes the reaction to happen faster.
  4. how quickly the concentration of reactions decreases and how quickly and concentration of products increases.
  5. when reaction and it’s reverse act at the same rate.

10 Clues: a chemical that donates a hydrogen atom • a chemical that accepts a hydrogen atom • when reaction and it’s reverse act at the same rate. • The amount of energy required to pull two bonded atoms apart. • when there is a net release of energy during a chemical reaction • when there is a net absorption of energy during a chemical reaction • ...

The Law of Conservation of Mass 2025-09-17

The Law of Conservation of Mass crossword puzzle
Across
  1. A substance made up of matter with a specific composition, like water or salt.
  2. Anything that has mass and takes up space.
  3. The lightest element and the first one on the periodic table.
  4. Types of matter with a uniform makeup, such as elements or compounds.
  5. The law that matter is not created or destroyed during a chemical reaction.
  6. Two or more atoms bonded together, like H₂O or O₂.
Down
  1. The starting materials in a chemical reaction.
  2. The new substances formed after a chemical reaction takes place.
  3. The smallest unit of an element that still has the properties of that element.
  4. What happens to atoms during a chemical reaction—they change places but are not destroyed.

10 Clues: Anything that has mass and takes up space. • The starting materials in a chemical reaction. • Two or more atoms bonded together, like H₂O or O₂. • The lightest element and the first one on the periodic table. • The new substances formed after a chemical reaction takes place. • Types of matter with a uniform makeup, such as elements or compounds. • ...

CROSSWORD PUZZLE PHYSICAL SCIENCE 2022-06-10

CROSSWORD PUZZLE PHYSICAL SCIENCE crossword puzzle
Across
  1. Remains at rest or in uniform motion in the same straight line unless acted upon by some external force
  2. An empirical physical constant; used in calculating the gravitational attraction between two objects
  3. Earth is the center of the universe
  4. Formed from a chemical reaction
  5. Newton's Second Law of Motion is the Law of __________
  6. Largest moon of Jupiter
Down
  1. An __________ reaction is any chemical reaction that absorbs heat from its environment.
  2. Happens on March 21; also known as the spring season
  3. __________ Gravitation
  4. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

10 Clues: __________ Gravitation • Largest moon of Jupiter • Formed from a chemical reaction • Earth is the center of the universe • Happens on March 21; also known as the spring season • Newton's Second Law of Motion is the Law of __________ • An __________ reaction is any chemical reaction that absorbs heat from its environment. • ...

Conceptual Chemistry Semester 2 Ch.3 & 9 2012-07-14

Conceptual Chemistry Semester 2 Ch.3 & 9 crossword puzzle
Across
  1. A scientific law stating that there is no detectable change in the amount of mass present before and after a chemical reaction.
  2. The Law of Mass Conservation tells us that the total number of individual atoms must be __________ on each side of the arrow in a chemical equation.
  3. In a chemical equation, elements/molecules in this state of matter are identified with a lower-case 'l'.
  4. In a chemical equation, elements/molecules in this state of matter are identified with a lower-case 'g'.
  5. A new material that is formed in a chemical reaction, appearing AFTER the arrow in a chemical equation.
  6. In a chemical equation, elements/molecules in this state of matter are identified with a lower-case 's'.
  7. A starting material in a chemical reaction, appearing BEFORE the arrow in a chemical equation.
Down
  1. A scientific law stating that elements combine in definite mass ratios to form compounds.
  2. The method which we applied during an activity this week to collect carbon dioxide gas.
  3. A symbolic representation of a chemical reaction.

10 Clues: A symbolic representation of a chemical reaction. • The method which we applied during an activity this week to collect carbon dioxide gas. • A scientific law stating that elements combine in definite mass ratios to form compounds. • A starting material in a chemical reaction, appearing BEFORE the arrow in a chemical equation. • ...

Thermochemistry 2015-02-08

Thermochemistry crossword puzzle
Across
  1. These types of reactions are always exothermic
  2. The unit used for energy
  3. The type of energy that is measured in thermochemistry
  4. During an exothermic the temperature of the surroundings _____________
  5. On the x-axis of an enthalpy level diagram
  6. Must be reached for a reaction to take place
  7. When this metal is added to an acid an exothermic reaction takes place
  8. Net gain in energy from reactants to products
  9. Can be used to measure energy flow in or out of a reaction
  10. The process of an ionic compound splitting into it's ions when it is dissolved in water
  11. Cannot be created or destroyed only transferred
  12. The unit used when measuring mass
  13. When bonds are __________ energy is released from the reaction
Down
  1. In a chemical equation (aq) stands for ________
  2. The symbol used in chemistry to represent change
  3. The place from which phase changes and reactions absorb energy
  4. Used to measure the volume of a solution
  5. The numbers that represent molar ratios in chemical equations
  6. Used to measure temperature
  7. When this chemical is added to ammonium thiocyanate the test-tube gets very cold
  8. The lowest temperature on the kelvin scale
  9. This phase change is endothermic
  10. Calculated using mass/volume
  11. The lowest energy state of water
  12. These do not appear in a balanced ionic equation
  13. Has one of the highest specific heat capacities

26 Clues: The unit used for energy • Used to measure temperature • Calculated using mass/volume • This phase change is endothermic • The lowest energy state of water • The unit used when measuring mass • Used to measure the volume of a solution • On the x-axis of an enthalpy level diagram • The lowest temperature on the kelvin scale • Must be reached for a reaction to take place • ...

Physical and Chemical Reactions 2018-05-31

Physical and Chemical Reactions crossword puzzle
Across
  1. made up of two or more seperate elements
  2. water vapour turning into liquid
  3. a group of 2 or more atoms that are grouped togethor
  4. transformation of a chemical substance to another
  5. when liquid boils
  6. changing a solid to its original or new form
  7. elements are divided into these different things
  8. smallest unit of ordinary matter
  9. a single particle
  10. Molecules colliding by kinetic energy
  11. when liquid bubbles and turns into vapour
  12. liquid boils and turns in vapour
  13. a type of dimensional pattern of particles
  14. substance made up of only one atoms
  15. a substance that is very fragile and could change unpredictably
  16. when 2 or more atoms are connected
Down
  1. a molecule joined with two or more of the same atoms
  2. the outcome of a reaction
  3. a molecule that is grouped and also bonded to others
  4. a dangerous thing to breathe in
  5. this affect can be used to move particles around faster
  6. a substance that undergoes change during a reaction
  7. a grouped up table which divides different types of elements into groups
  8. materials being damaged
  9. solids skips liquid
  10. consisting of 2 atoms
  11. a enzyme that fastens the reaction rate
  12. plastics and elastomers
  13. its given to a row of elements
  14. a chemical that helps speed up reactions

30 Clues: when liquid boils • a single particle • solids skips liquid • consisting of 2 atoms • materials being damaged • plastics and elastomers • the outcome of a reaction • its given to a row of elements • a dangerous thing to breathe in • water vapour turning into liquid • smallest unit of ordinary matter • liquid boils and turns in vapour • when 2 or more atoms are connected • ...

Chemical Reactions - Terms 2025-02-12

Chemical Reactions - Terms crossword puzzle
Across
  1. The smallest bit of matter that keeps its identity
  2. Substances that form naturally below the surface
  3. The material made from a chemical reaction
  4. When only one element is swapped in a reaction
  5. When the number of _____________ changes, it creates an isotope
  6. The number of protons in the element
  7. When the number of neutrons changes, it creates a _________________.
  8. The term used for elements that are not metals or non-metals
  9. Have no mass; Are negatively charged
  10. The number of protons and neutrons in the nucleus of an atom added together
  11. Lack all the metal attributes
  12. When a element becomes negatively charged
  13. A mixture that is poorly mixed
Down
  1. When a element becomes positively charged
  2. When two or more elements are swapped in a reaction
  3. Matter that can be separated through physical means
  4. When two elements combine into something unique
  5. Matter that can only be separated through chemical reactions
  6. When two or more elements combine together
  7. When a compound breaks down into its original parts
  8. The amount of mass per unit of volume
  9. The amount of space that a substance / object takes up
  10. The material consumed during a chemical reaction
  11. A change in the electrical charge
  12. A mixture that is well mixed
  13. Is anything that has mass, and takes up space

26 Clues: A mixture that is well mixed • Lack all the metal attributes • A mixture that is poorly mixed • A change in the electrical charge • The number of protons in the element • Have no mass; Are negatively charged • The amount of mass per unit of volume • When a element becomes positively charged • When a element becomes negatively charged • ...

Energy and ATP 2023-08-16

Energy and ATP crossword puzzle
Across
  1. the ability to do work
  2. the energy needed to start a reaction
  3. compound that stores energy
  4. reaction gains electrons
  5. lost a phosphorus and releases ADP
  6. a fixed shape
  7. reduces the amount of energy needed for a reaction
Down
  1. a type of energy in the form of heat
  2. no shape
  3. the ingredients to the chemical reaction
  4. reaction loses electrons
  5. what you get at the end of the reaction
  6. speeds up reactions without being changed or destroyed
  7. takes the shape on the container

14 Clues: no shape • a fixed shape • the ability to do work • reaction loses electrons • reaction gains electrons • compound that stores energy • takes the shape on the container • lost a phosphorus and releases ADP • a type of energy in the form of heat • the energy needed to start a reaction • what you get at the end of the reaction • the ingredients to the chemical reaction • ...

Tkai 2022-03-08

Tkai crossword puzzle
Across
  1. Calculations
  2. mole to mass
  3. mass of 1 mole of a substance
  4. the maximum of product that could be producd based on the limiting reaction
  5. lowest whole tatio of elements
  6. calculations involving the mass relationships of elements in compounds
  7. utiple of an empirical formula
  8. Remember that the coefficients of reactants and products can represent # of atoms as well as the # of moles that reacted.
Down
  1. You can use the coefficients in a balanced chemical equation to these
  2. the substance that is not used up completely in a reaction
  3. determining the number of moles produced from a reaction, you must first begin with a balanced equation
  4. is the quantitative relationship between the amount of reactants used and the amount of products formed.
  5. the substance the will used up first in a chemical reaction
  6. the mass of 1 mole of a substance
  7. the measured amount of a product obtained from a reaction

15 Clues: Calculations • mole to mass • mass of 1 mole of a substance • lowest whole tatio of elements • utiple of an empirical formula • the mass of 1 mole of a substance • the measured amount of a product obtained from a reaction • the substance that is not used up completely in a reaction • the substance the will used up first in a chemical reaction • ...

physical science 2023-05-17

physical science crossword puzzle
Across
  1. direct contact
  2. increasing
  3. chemical reaction in which energy is primarily given off
  4. energy of motion
  5. transfer of heat as a result of moving currents
  6. anything that has mass and takes up space
  7. total energy of motion and position
  8. molecules in a sample of matter
  9. energy from the sun
Down
  1. fossil fuel
  2. describes a reaction that absorbs energy
  3. energy stored due to an objects position
  4. energy electrically charged particles moving
  5. ability to cause change
  6. shrink or become smaller
  7. chemical reaction that absorbs energy from surrondings
  8. nonrenewable energy source
  9. occurring raw material
  10. energy stored in chemical bonds
  11. movement of thermal energy from a substance

20 Clues: increasing • fossil fuel • direct contact • energy of motion • energy from the sun • occurring raw material • ability to cause change • shrink or become smaller • nonrenewable energy source • energy stored in chemical bonds • molecules in a sample of matter • total energy of motion and position • describes a reaction that absorbs energy • energy stored due to an objects position • ...

chemistry crossword puzzle 2022-04-03

chemistry crossword puzzle crossword puzzle
Across
  1. a simplified representation of solids, liquids and gases
  2. a change that does not result in a new substance being produced
  3. clusters of atoms
  4. when a metal reacts with the chemicals in its environment
  5. the chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the Sun
  6. any chemical reaction where a substance burns in oxygen to produce light and heat
  7. a change that results in a new substance being formed
  8. able to be stretched to form a wire
  9. substances made up of only one type of atom
Down
  1. a table that shows all the known elements
  2. the substances formed in chemical reactions
  3. the smallest building blocks of matter
  4. a mixture in which one substance is dissolved in another
  5. the characteristics of a substance
  6. easily crumbled or shattered
  7. a simple chemical equation where chemicals are represented by their names
  8. a change of state from solid to gas
  9. mixture of a metal with other metals or non-metals
  10. able to be hammered or bent into new shapes

19 Clues: clusters of atoms • easily crumbled or shattered • the characteristics of a substance • a change of state from solid to gas • able to be stretched to form a wire • the smallest building blocks of matter • a table that shows all the known elements • the substances formed in chemical reactions • able to be hammered or bent into new shapes • ...

Chemical Reactions 2023-11-20

Chemical Reactions crossword puzzle
Across
  1. The smallest particle of matter made up of protons, neutrons, and electrons.
  2. Substances that are combined to form products in a chemical reaction.
  3. A change in state of matter where no new substance is formed.
  4. More than one atom combined to form a substance
  5. A scientist who uses chemical reactions to solve problems.
  6. The result of substances being combined in a chemical reaction.
Down
  1. Chemicals combining to cause new substances to be formed.
  2. A scientist who uses chemical reactions to make new materials.
  3. A chemical that makes a chemical reaction happen faster.
  4. Characteristics of matter that can be used to identify substances.

10 Clues: More than one atom combined to form a substance • A chemical that makes a chemical reaction happen faster. • Chemicals combining to cause new substances to be formed. • A scientist who uses chemical reactions to solve problems. • A change in state of matter where no new substance is formed. • A scientist who uses chemical reactions to make new materials. • ...

types of reactions 2024-05-06

types of reactions crossword puzzle
Across
  1. a chemical reaction in which oxygen is added to or hydrogen is removed from an element, molecule or a compound.
  2. chemical reaction in which a reaction between any combustible substance and an oxidiser takes place in order to form an oxidised product.
  3. type of reaction between an acid and a base to give salt and water as the products.
Down
  1. type of reaction which involves two or more substances to combine with each other
  2. another name for combination reaction
  3. type of reaction when a more reactive element displaces a less reactive element
  4. type of reaction which one reactant breaks down to form two or more products
  5. type of chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt
  6. The reaction in which hydrogen is gained or oxygen is lost
  7. type of reaction in which oxidation and reduction take place simultaneously

10 Clues: another name for combination reaction • The reaction in which hydrogen is gained or oxygen is lost • type of reaction in which oxidation and reduction take place simultaneously • type of reaction which one reactant breaks down to form two or more products • type of reaction when a more reactive element displaces a less reactive element • ...

chemistry 5,6 2025-11-10

chemistry 5,6 crossword puzzle
Across
  1. an ion of 2 or more bonded ions (PO₄) has the prefix hypo or suffixes ite or ate (usually contain oxygen)
  2. (Valence shell electron Repulsion) theory that Molecules will make a shape that Spreads the Valance electrons out as far as possible.
  3. change changes of a substance from solid to liquid or liquid to gas
  4. vibrate but don't change position
  5. When a substance gets smaller due to lowering temperature or energy.
  6. flow (change position)
  7. a molecule shape where there are 2 atoms bonded to a center atom at an angle
  8. more collisions there are between molecules. the more heat the substance can hold.
  9. of matter -. all molecules are in Motion, more motion means more heat.
  10. dissolve covalent molecules but not ionic
  11. a molecule shape where there are 3 bonds all pointing at a downward angle
  12. burning
  13. Change that affects the type of Molecule or atoms in a Substance.
  14. a compound where the electrons are not shared equally Creating a molecule with a slightly positive & negative side.
  15. when a substance gets larger due to rise temperature/energy
  16. a compound made of 2 elements
Down
  1. a molecule made with a Covalent bond that shares electrons evenly
  2. Change in State, Shape, Size when the Molecules stay the same.
  3. the substances coming out of a chemical reaction
  4. a molecule shape where the atoms make a flat triangle
  5. a molecule shape where there are 4 points
  6. the measure of mass per volume (changes at different temperatures)
  7. the substances going into a chemical reaction
  8. a reaction that gets cold (absorbs heat)
  9. dissolve both polar Molecules & non polar ionic polar covalent
  10. a reaction that gives off heat
  11. flow and spread out to fill its space
  12. - the creation of a solid from liquids or gasses without temperature drop to freezing.
  13. chemical equation a chemical formula that showing a reaction how many of each molecule or element come into and go out of a reaction
  14. a molecule shape where the atoms are straight because there are 2 double bonds to a center atom

30 Clues: burning • flow (change position) • a compound made of 2 elements • a reaction that gives off heat • vibrate but don't change position • flow and spread out to fill its space • a reaction that gets cold (absorbs heat) • a molecule shape where there are 4 points • dissolve covalent molecules but not ionic • the substances going into a chemical reaction • ...

Chemical and Physical Changes 2023-10-26

Chemical and Physical Changes crossword puzzle
Across
  1. what we use to represent chemical reactions
  2. molecules move freely
  3. when a liquid changes to a solid
  4. what the reaction ends with
  5. matter changes, but no new substance is formed
  6. What a reaction starts with
  7. the number in front of chemical formulas to tell how many molecules there are
  8. when a gas changes to a liquid
  9. has mass and takes up space
  10. type of reaction that absorbs energy from its surroundings
  11. type of reaction that releases energy to its surroundings
  12. matter changes so that a new substance is formed
Down
  1. what is added to make state of matter change
  2. anything that describes an item
  3. matter cannot be created or destroyed, it can change forms
  4. molecules are fluid
  5. the small number to tell how many specific atoms are in a molecule
  6. when a solid goes to a gas
  7. molecules are tightly packed together
  8. when a liquid changes to a gas
  9. when a solid changes to a liquid
  10. anything that proves a change has happened
  11. when a gas changes to a solid

23 Clues: molecules are fluid • molecules move freely • when a solid goes to a gas • what the reaction ends with • What a reaction starts with • has mass and takes up space • when a gas changes to a solid • when a liquid changes to a gas • when a gas changes to a liquid • anything that describes an item • when a liquid changes to a solid • when a solid changes to a liquid • ...

unit 6B vocabulary 2017-04-06

unit 6B vocabulary crossword puzzle
Across
  1. substance combines with another substance
  2. changes the form of an object
  3. symbols, numbers, parenthesis, dashes, and brackets
  4. mass is conserved over time
  5. first column, very reactant
  6. change during a reaction
  7. odorless & colorless
Down
  1. outer shell of an atom
  2. the result of a chemical reaction
  3. attraction between atoms
  4. a chemical reaction in the form of symbols and formulas

11 Clues: odorless & colorless • outer shell of an atom • attraction between atoms • change during a reaction • mass is conserved over time • first column, very reactant • changes the form of an object • the result of a chemical reaction • substance combines with another substance • symbols, numbers, parenthesis, dashes, and brackets • ...

Photosynthesis and Cellular Respiration 2022-09-21

Photosynthesis and Cellular Respiration crossword puzzle
Across
  1. fuels that are produced from plant or animal matter
  2. equation symbolic representation of a chemical reaction (2 wds.)
  3. place in plant cells where photosynthesis takes place
  4. the process by which producers use energy from the sun to make sugar
  5. that which occupies space and has mass
  6. place where a significant portion of cellular respiration takes place
  7. process organisms use to release energy from sugars in the absence of oxygen
  8. a measure of the rate of conversion of the sun's energy into matter by the producers in an ecosystem
Down
  1. starting substances in a chemical reaction
  2. process that uses oxygen to release the energy stored in food molecules (2 wds.)
  3. microscopic photosynthetic organisms that live near the sunlit surface of nearly all freshwater and saltwater environments.
  4. substances formed in a chemical reaction
  5. process in which atoms are rearranged to produce new substances (2 wds.)
  6. the ability to do work

14 Clues: the ability to do work • that which occupies space and has mass • substances formed in a chemical reaction • starting substances in a chemical reaction • fuels that are produced from plant or animal matter • place in plant cells where photosynthesis takes place • equation symbolic representation of a chemical reaction (2 wds.) • ...

Physical Science Final 2019-05-13

Physical Science Final crossword puzzle
Across
  1. A liquid substance capable of dissolving other substances
  2. the formation of products from reactants
  3. The product of an object's mass and velocity
  4. a measure of the force exerted by a gas above a liquid
  5. A combination of chemical symbols and numbers to represent a substance
  6. horizontal row in the periodic table
  7. a process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation
  8. A change in matter that produces one or more new substances
  9. positively charged ion (lost electrons)
  10. The temperature at which a liquid changes to a gas
  11. A chemical reaction in which energy is absorbed.
  12. positively charged particle that determines the type of element
  13. A negatively charged ion (gained electrons)
  14. Distance and direction of an object's change in position from the starting point.
  15. a type of collision in which the kinetic energy after the collision is less than the kinetic energy before the collision
  16. A measure of the average energy of motion of the particles of a substance.
  17. How readily a substance combines chemically with other substances.
  18. The original chemical reactant in a radioactive decay equation which decays into daughter elements.
  19. Electrons on the outermost energy level (shell) of an atom
  20. Energy that is radiated or transmitted in the form of rays or waves or particles.
  21. A liquid's resistance to flowing
  22. Energy needed to get a reaction started
  23. a push or pull on an object
  24. A measurement of how much solute exists within a certain volume of solvent
  25. the amount of matter in an object
  26. substance that speeds up the rate of a chemical reaction by lowering activation energy
  27. For a reaction to occur, the particles must collide, they must collide with the appropriate orientation, and they must collide with sufficient energy.
  28. A device used to measure current in a circuit
  29. forces of attraction between molecules
  30. A substance made up of atoms of two or more different elements joined by chemical bonds
  31. How far an object moves
  32. Vertical column in the periodic table
  33. one-half the distance between the nuclei of two atoms of the same element when the atoms are joined
  34. Creation of energy by joining the nuclei of two atoms.
  35. A quantity that has magnitude and direction
  36. center of an atom contains protons and neutrons
  37. Forces that produce a nonzero net force, causes acceleration
  38. The measurement of the outer surface of an object.
  39. length of time required for half of the radioactive atoms in a sample to decay
  40. Zero net force causes constant velocity (can be at rest or moving)
  41. A substance produced in a chemical reaction
Down
  1. A pure substance made of only one kind of atom
  2. A physical quantity that has magnitude only.
  3. The tendency of an object to resist a change in motion
  4. The splitting of an atomic nucleus to release energy.
  5. unit of electric current
  6. the process by which one or more substances change to produce one or more different substances
  7. the amount of matter in an object
  8. The temperature at which a solid becomes a liquid
  9. the force of gravity on an object
  10. The reaction that forms reactants from products.
  11. A situation in which two objects in close contact exchange energy.
  12. A chemical substance that is present at the start of a chemical reaction
  13. Isotopes that have unstable nuclei and undergo radioactive decay.
  14. The distance an object travels per unit of time
  15. Chemical Reaction in which energy is given off, primarily in the form of heat
  16. SI unit of force
  17. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  18. small portion of matter
  19. A change in a substance that does not involve a change in the identity of the substance
  20. The overall force on an object when all the individual forces acting on it are added together
  21. the ability of an atom to attract electrons when the atom is in a compound
  22. one in which there is no net loss of total kinetic energy
  23. When a stress is applied to a system at equilibrium, the equilibrium shifts to relieve the stress
  24. A flow of electric charge.
  25. How readily a substance combines chemically with other substances.
  26. the speed and direction of a moving object
  27. a change from one state (solid or liquid or gas) to another without a change in chemical composition
  28. Change in velocity divided by the time it takes for the change to occur can be speeding up, slowing down, or changing direction
  29. the force that acts on the surface of a liquid and that tends to minimize the area of the surface
  30. the energy an object has due to its motion
  31. the force that holds two atoms together
  32. In a chemical reaction, the state in which the rate of the forward reaction equals the rate of the reverse reaction, so that the relative concentrations of the reactants and products do not change with time.
  33. Every object in the universe attracts every other object
  34. the change in concentration of a reactant or product per unit time
  35. the powerful attractive force that binds protons and neutrons together in the nucleus
  36. A substance that is dissolved in a solution.
  37. a changing magnetic field creates an electric current
  38. A substance made up of atoms of two or more different elements joined by chemical bonds
  39. the number of protons in an atom
  40. change in momentum
  41. The chemical product in a radioactive decay equation produced from decayed parent elements.

82 Clues: SI unit of force • change in momentum • small portion of matter • How far an object moves • unit of electric current • A flow of electric charge. • a push or pull on an object • A liquid's resistance to flowing • the number of protons in an atom • the amount of matter in an object • the force of gravity on an object • the amount of matter in an object • ...

Lesson 1-3 Quiz Review 2024-01-10

Lesson 1-3 Quiz Review crossword puzzle
Across
  1. A small-sized number on the bottom right of the symbol. It refers to the number of atoms of the element.
  2. The elements or molecules that you end up with after a chemical reaction.
  3. In a combustion engine this is the stroke that compresses the gas air mixture.
  4. A number placed in front of a chemical formula to balance a chemical equation.
  5. In a combustion engine this is the name of the stroke that pulls a gas/air mixture into the cylinder.
  6. A measure of the average kinetic energy of all particles that make up that objects matter.
  7. This is the fuel source that rockets use and that doesn't produce carbon dioxide as an exhaust.
  8. In a combustion engine this is the name of the stroke in which a combustion reaction occurs.
Down
  1. A process in which one or more substances, the reactants, are converted to one or more different substances, the products.
  2. a name for energy associated with a machine including the motion of a machine's parts or the machine itself.
  3. The energy related to an object or particles motion.
  4. A type of chemical reaction that requires a fuel, oxidizer, and source of heat. This type of reaction produces heat, water vapor, and carbon dioxide.
  5. When energy is used to move an object from one place to another.
  6. The total energy associated with the temperature of an object, or the movement of microscopic particles that make it up.
  7. The elements or molecules that you start with in a chemical reaction.
  8. In a combustion engine this is the stroke that pushes all of the exhaust out of the cylinder.

16 Clues: The energy related to an object or particles motion. • When energy is used to move an object from one place to another. • The elements or molecules that you start with in a chemical reaction. • The elements or molecules that you end up with after a chemical reaction. • In a combustion engine this is the stroke that compresses the gas air mixture. • ...

science cross word 2018-11-17

science cross word crossword puzzle
Across
  1. rows
  2. material that cannot be broken down into any simpler substance
  3. Slow chemical reaction involving oxygen in air reacting with metal
  4. a chemical reaction which releases heat
  5. The material at the start of the reaction
  6. solid to gas
  7. forms news substance. The new material has new properties from the original properties
  8. art magician, part scientist.They did event tools that are still used today
  9. 2 or more elements combined
  10. the material produced
  11. Everything was made up of Earth, Air, Water, and Fire
  12. particles that are so small its difficult to separate
Down
  1. no new substance only the state of the substance changes
  2. a reaction that absorbs heat
  3. gas to liquad
  4. You can see the different substances that make up the mixture
  5. the total mass or the protons and neutrons
  6. The different substances that make it up are not separately visible
  7. have both metal and non-metal property's
  8. It has only one proton, one electron and No neutrons
  9. gas to solid
  10. Accidentally discovered,used to make pot, coins, jewelry, and tools.
  11. are positively charged in the nucleus

23 Clues: rows • solid to gas • gas to solid • gas to liquad • the material produced • 2 or more elements combined • a reaction that absorbs heat • are positively charged in the nucleus • a chemical reaction which releases heat • have both metal and non-metal property's • The material at the start of the reaction • the total mass or the protons and neutrons • ...

CHEM 2026-01-05

CHEM crossword puzzle
Across
  1. everything in the universe that is not the system
  2. name of compound NaCl
  3. compound with either same empirical formula or the simple whole-number multiple of its empirical formula
  4. compound with the lowest whole-number ratio of atoms or moles
  5. representative particles of a substance- 6.022 x 10^23 particles
  6. How many moles are in 176 grams of calcium carbonate (CaCO₃)
  7. total energy contained in a system
  8. type of reaction where a single compound is broken into two or more products
Down
  1. measure of the amount of solute that is dissolved in a given quantity of solvent
  2. a compound composed of hydrogen and carbon
  3. part of the universe on which you focus your attention
  4. substances present after reaction
  5. reactant that determines the amount of product that can be produced
  6. bonds are broken when molecules collide with energy
  7. substances present before reaction
  8. calculation of quantities in chemical reactions
  9. number of moles of solute dissolved in 1 liter of solution
  10. ratio of the actual theoretical yield of a reaction
  11. used to balance chemical equations
  12. reactions that release net energy into the surroundings

20 Clues: name of compound NaCl • substances present after reaction • substances present before reaction • used to balance chemical equations • total energy contained in a system • a compound composed of hydrogen and carbon • calculation of quantities in chemical reactions • everything in the universe that is not the system • bonds are broken when molecules collide with energy • ...

Evidence of Chemical Reactions 2024-11-13

Evidence of Chemical Reactions crossword puzzle
Across
  1. Also known as combustion, is a chemical reaction where a substance reacts with oxygen gas, releasing energy in the form of light and heat
  2. A change in matter that can change the form of the matter without changing the chemical composition of it (examples: melting, freezing, evaporating, etc.)
  3. Observations that indicate a chemical change or reaction. These changes can occur due to various factors such as temperature changes, light given off, or the formation of bubbles1. For example, leaves changing color in the fall
  4. A result of a chemical reaction caused by the release of a gas
  5. The solid created from a solution in which a chemical reaction has occurred
  6. A change that occurs due to a chemical reaction in which substances combine or decompose to form one or more different substances
Down
  1. In a chemical reaction, a change in thermal energy can occur due to the breaking or formation of chemical bonds12345. When the chemical bonds of the reactants are broken, excess energy is released, causing heat to be discharged/absorbed and leading to an increase/decrease in temperature
  2. A process in which one or more substances are converted to one or more different substances
  3. A chemical reaction that produces heat and light

9 Clues: A chemical reaction that produces heat and light • A result of a chemical reaction caused by the release of a gas • The solid created from a solution in which a chemical reaction has occurred • A process in which one or more substances are converted to one or more different substances • ...

Science 7 Semester Exam Post-Review 2022-01-13

Science 7 Semester Exam Post-Review crossword puzzle
Across
  1. subatomic particle that defines the element
  2. has gained or tends to gain electrons
  3. model that is useful, but not accurate in showing electrons in circular orbits
  4. a number used to balance a chemical equation
  5. charge of ions that have gained electrons
  6. discovered the nucleus through a “gold foil” experiment
Down
  1. subatomic particle with negligible mass and negative charge
  2. charge of ions that have lost electrons
  3. subatomic particle that has mass but no charge
  4. a number used to indicate numbers of atoms in a chemical formula
  5. an “ingredient” or substance used in a reaction
  6. same protons, different neutrons
  7. based on data, explains and predicts
  8. has lost or tends to lose electrons
  9. a substance produced by a chemical reaction
  10. type of change where new substances are produced

16 Clues: same protons, different neutrons • has lost or tends to lose electrons • based on data, explains and predicts • has gained or tends to gain electrons • charge of ions that have lost electrons • charge of ions that have gained electrons • subatomic particle that defines the element • a substance produced by a chemical reaction • a number used to balance a chemical equation • ...

unit 2 2022-01-20

unit 2 crossword puzzle
Across
  1. or more atoms held by chemical bonds
  2. of matter in something
  3. object that has a definite shape and volume
  4. volume but no definite shape
  5. property: characteristic of matter that you can see without changing the identity of the substances it makes up
  6. of solids,liquids,and gases
  7. created by two or more elements that are chemically joined in a combination
  8. change:size,shape,form, state of matter, which the matter’s identity stays the same
  9. that takes up space
Down
  1. substance that is created by one kind of atom
  2. matter occupies
  3. to catch fire
  4. per unit volume
  5. property:ability or inability to change into one or more substances
  6. of conservation of mass: that the total mass before a chemical reaction is the is similar as total mass after a chemical reaction
  7. definite shape or volume
  8. substance dissolves in another
  9. change:change in matter which the substances that make up matter change into substances that have different chemical and physical properties

18 Clues: to catch fire • matter occupies • per unit volume • that takes up space • of matter in something • definite shape or volume • of solids,liquids,and gases • volume but no definite shape • substance dissolves in another • or more atoms held by chemical bonds • object that has a definite shape and volume • substance that is created by one kind of atom • ...

This Week in Science 2025-01-10

This Week in Science crossword puzzle
Across
  1. The little numbers in a chemical equation
  2. The big numbers (in front) in a chemical equation
  3. CO2 is the formula for what?
  4. What kind of system was the egg and vinegar demonstration
  5. Chemically speaking, what is cottage cheese
  6. Mass is conserved in a ______ system
  7. When creating a design, these are your goals
  8. In a chemical reaction, mass can appear to disappear in what form?
Down
  1. A molecule made of two or more elements
  2. When creating a design, these are holding you back
  3. An unexpected difference (you expected 10 but got 8)
  4. A gas that holds in heat
  5. When you create an illustration of a reaction
  6. The _______ Agreement is a group of countries working against climate change
  7. Country with the highest CO2 discharges
  8. The arrow in a chemical equation

16 Clues: A gas that holds in heat • CO2 is the formula for what? • The arrow in a chemical equation • Mass is conserved in a ______ system • A molecule made of two or more elements • Country with the highest CO2 discharges • The little numbers in a chemical equation • Chemically speaking, what is cottage cheese • When creating a design, these are your goals • ...

Types of Reactions 2024-05-09

Types of Reactions crossword puzzle
Across
  1. Silver article turns black when kept in the open for a few days due to the formation of
  2. Substance that undergoes a chemical reaction
  3. We can balance a chemical equation by adding a ____ in front of the formula
  4. Other name for quick lime
  5. Fatty foods become rancid due to the process of
  6. Type of reaction of respiration
  7. Reaction used in black and white photography
Down
  1. Reaction between lead nitrate and potassium iodide present in aqueous solutions is an example of
  2. This person proposed the law of conservation of mass
  3. When the total mass of the reactant is equal to the mass of the mass of the product, the reaction is
  4. Can be used for storage of fresh samples of an oil for a long time
  5. Solid formed from precipitation
  6. A reaction with a combustible material with an oxidizer to give an oxidized product
  7. Are shown to the right of the arrow
  8. Reaction in which heat is given off along with the products

15 Clues: Other name for quick lime • Solid formed from precipitation • Type of reaction of respiration • Are shown to the right of the arrow • Substance that undergoes a chemical reaction • Reaction used in black and white photography • Fatty foods become rancid due to the process of • This person proposed the law of conservation of mass • ...

Complete this Crossword 2023-03-08

Complete this Crossword crossword puzzle
Across
  1. What gas found in air is one of the reactants in an oxidation reaction?
  2. It is produced when copper carbonate gets heated up
  3. Poisonous gas that gets formed when there is not enough oxygen for combustion
  4. This substance is formed with carbon dioxide when methane gas is completely burnt in air
  5. The colour of magnesium oxide
  6. The colour of blue cobalt chloride paper in the presence of water
  7. This is a type of oxidation reaction
Down
  1. This is the solid that dissolves in a solvent
  2. Burning magnesium is an example of this type of reaction
  3. The mass of the products of a chemical reaction is the same as the mass of what?
  4. The colour of iodine vapour
  5. Type of combustion that happens when there is plenty of oxygen
  6. What turns cloudy when carbon dioxide is present
  7. This is a type of physical change
  8. It is conserved in a chemical reaction

15 Clues: The colour of iodine vapour • The colour of magnesium oxide • This is a type of physical change • This is a type of oxidation reaction • It is conserved in a chemical reaction • This is the solid that dissolves in a solvent • What turns cloudy when carbon dioxide is present • It is produced when copper carbonate gets heated up • ...

Form 2021-08-27

Form crossword puzzle
Across
  1. amount of energy needed to change a to quantity (mole or gram) from solid to liquid.
  2. made up of particles such as atoms, occupies a place in space is in constant motion, and has a mass.
  3. visible by the naked eye.
  4. consists of a regular repetition of a group of atoms in three dimensional space.
  5. forces of attraction or repulsion between neighbouring particles (ions, atoms, molecules).
  6. a chemical reaction during which heat energy is absorbed from the surroundings.
  7. is the form of energy an object or particle has as a result of its motion.
Down
  1. a chemical reaction during which heat energy is released to the surroundings.
  2. stored energy.
  3. a neutrally charged group of atoms held together by chemical bonds.
  4. the lowest temperature possible (-273.15 oC).
  5. so small it is only visible with a microscope.
  6. liquifying or melting a substance.
  7. the heat transfer by a system during a chemical reaction.

14 Clues: stored energy. • visible by the naked eye. • liquifying or melting a substance. • the lowest temperature possible (-273.15 oC). • so small it is only visible with a microscope. • the heat transfer by a system during a chemical reaction. • a neutrally charged group of atoms held together by chemical bonds. • ...

Chemical Reactions, Matter & Energy 2023-05-16

Chemical Reactions, Matter & Energy crossword puzzle
Across
  1. The end result of a chemical reaction.
  2. An example is when salt is added to water. Salt is a soluble substance.
  3. A study of materials and sources in order to establish facts.
  4. A process that creates a new substance.
  5. A particle that consists of a nucleus with protons, neutrons, and electrons.
  6. A characteristic of a particular substance.
  7. Is not able to dissolve, especially in water.
  8. A reaction due to absoption of heat.
Down
  1. When matter changes from one state, such as melting or freezing.
  2. A particle made of two or more atoms.
  3. Examples are solid, liquid, and gas.
  4. A reaction due to a release of heat.
  5. A form of matter.
  6. Contains two or more substances that are not chemically combined.
  7. Able to dissolve, especially in water.
  8. The beginning part of a chemical reaction.

16 Clues: A form of matter. • Examples are solid, liquid, and gas. • A reaction due to a release of heat. • A reaction due to absoption of heat. • A particle made of two or more atoms. • The end result of a chemical reaction. • Able to dissolve, especially in water. • A process that creates a new substance. • The beginning part of a chemical reaction. • ...

Body Systems and Homeostasis Jacory P. 2023-03-15

Body Systems and Homeostasis Jacory P. crossword puzzle
Across
  1. The systems that make up the human body
  2. When the output of a system amplifies the system
  3. The system associated with breathing
  4. When the body responds to changes in internal and external environments
  5. The system associated with breaking down food that you have previously eaten
  6. The system associated with offspring
  7. Tissues that make up the muscle
  8. The system composed of muscle fibers
  9. The system that moves blood through out the body
Down
  1. Food being broken down by the body with chemical processes occurring
  2. The product of a reaction leads to an increase in that reaction
  3. The glands and organs that release hormones into your blood
  4. The product of a reaction leads to an decrease in that reaction
  5. Your bodys´ central frame work
  6. The process your body goes through to maintain equilibrium
  7. Made by glands in the body
  8. Vessels that carry low oxygenated blood to be reoxygenated
  9. Vessels that carry blood through the body
  10. Food being broken down by the body without chemical processes occurring
  11. The system that controls things like what you feel and is responsible for your bodys´ movements

20 Clues: Made by glands in the body • Your bodys´ central frame work • Tissues that make up the muscle • The system associated with breathing • The system associated with offspring • The system composed of muscle fibers • The systems that make up the human body • Vessels that carry blood through the body • When the output of a system amplifies the system • ...

Chemical and Physical Changes 2023-10-26

Chemical and Physical Changes crossword puzzle
Across
  1. what we use to represent chemical reactions
  2. molecules move freely
  3. when a liquid changes to a solid
  4. what the reaction ends with
  5. matter changes, but no new substance is formed
  6. What a reaction starts with
  7. the number in front of chemical formulas to tell how many molecules there are
  8. when a gas changes to a liquid
  9. has mass and takes up space
  10. type of reaction that absorbs energy from its surroundings
  11. type of reaction that releases energy to its surroundings
  12. matter changes so that a new substance is formed
Down
  1. what is added to make state of matter change
  2. anything that describes an item
  3. matter cannot be created or destroyed, it can change forms
  4. molecules are fluid
  5. the small number to tell how many specific atoms are in a molecule
  6. when a solid goes to a gas
  7. molecules are tightly packed together
  8. when a liquid changes to a gas
  9. when a solid changes to a liquid
  10. anything that proves a change has happened
  11. when a gas changes to a solid

23 Clues: molecules are fluid • molecules move freely • when a solid goes to a gas • what the reaction ends with • What a reaction starts with • has mass and takes up space • when a gas changes to a solid • when a liquid changes to a gas • when a gas changes to a liquid • anything that describes an item • when a liquid changes to a solid • when a solid changes to a liquid • ...

Electrochemistry 2024-09-26

Electrochemistry crossword puzzle
Across
  1. A list of elements arranged in order of their standard electrode potentials.
  2. The branch of chemistry that deals with the relationship between electrical energy and chemical reactions.
  3. The extra voltage required in an electrolytic cell to drive a non-spontaneous reaction beyond its theoretical value.
  4. An electrochemical cell that uses electrical energy to drive non-spontaneous chemical reactions.
  5. Conductance (Conductivity) The ability of an electrolyte solution to conduct electricity, measured in siemens per meter (S/m).
  6. A mathematical equation that relates the electrode potential to the concentrations of the reactants and products in a cell.
  7. The amount of electric charge carried by one mole of electrons, approximately equal to 96,485 coulombs.
  8. A reaction in which oxidation and reduction occur simultaneously, involving the transfer of electrons.
  9. A substance that dissociates into ions in solution, allowing the solution to conduct electricity.
  10. The electrode where oxidation (loss of electrons) occurs in an electrochemical cell.
  11. The ability of an electrode to gain or lose electrons, measured in volts.
  12. The deterioration of a metal as a result of chemical reactions with its environment, often involving electrochemical processes.
  13. A law that states the limiting molar conductivity of an electrolyte is the sum of the contributions of its individual ions.
Down
  1. The process of using electrical energy to drive a non-spontaneous chemical reaction.
  2. Cell A rechargeable electrochemical cell, such as a lead-acid battery, which can be recharged and used multiple times.
  3. A type of electrochemical cell that generates electrical energy from spontaneous redox reactions.
  4. The electrode where reduction (gain of electrons) occurs in an electrochemical cell.
  5. The electrode potential of a half-cell under standard conditions (1 M concentration, 298 K temperature, and 1 atm pressure).
  6. The conductance of an electrolyte solution divided by its concentration, used to compare the conductive abilities of different electrolytes.
  7. A device that generates electrical energy from chemical reactions or uses electrical energy to cause chemical changes.
  8. The gain of electrons by a species in a chemical reaction.
  9. The loss of electrons by a species in a chemical reaction.
  10. A device used in galvanic cells to maintain electrical neutrality by allowing the flow of ions between two half-cells.
  11. A conductor through which electric current enters or leaves an electrochemical cell.
  12. A non-rechargeable electrochemical cell that provides energy until its reactants are used up (e.g., a dry cell or alkaline battery).
  13. A process in which a metal is deposited onto a surface by passing an electric current through an electrolytic solution.
  14. of Electrolysis Laws that quantify the relationship between the amount of substance produced or consumed at an electrode and the quantity of electric charge passed through the cell.
  15. (SHE) A reference electrode with a defined potential of 0 volts, used as a standard for measuring electrode potentials in electrochemical cells.
  16. An electrochemical cell that generates electricity through the continuous reaction of a fuel (such as hydrogen) with an oxidant (such as oxygen).
  17. (EMF) The voltage difference between two electrodes in an electrochemical cell.

30 Clues: The gain of electrons by a species in a chemical reaction. • The loss of electrons by a species in a chemical reaction. • The ability of an electrode to gain or lose electrons, measured in volts. • A list of elements arranged in order of their standard electrode potentials. • (EMF) The voltage difference between two electrodes in an electrochemical cell. • ...

Law of Conservation of Mass 2022-02-05

Law of Conservation of Mass crossword puzzle
Across
  1. when two or more substances react
  2. the amount of space a substance occupies
  3. a group of atoms bonded together
  4. the basic unit of a chemical element
  5. a specific kind of matter with properties
  6. when something is made
  7. water
  8. the relationship between the mass and its volume
Down
  1. when something is broken or unable to be fixed
  2. a _______ reaction
  3. speed of an object or the change over time
  4. frozen water
  5. air
  6. law of ________ of mass
  7. quantity of matter; weight
  8. anything that occupies space and has a mass
  9. products turn to reactants
  10. enforcement of rules
  11. applying a force to move matter

19 Clues: air • water • frozen water • a _______ reaction • enforcement of rules • when something is made • law of ________ of mass • quantity of matter; weight • products turn to reactants • applying a force to move matter • a group of atoms bonded together • when two or more substances react • the basic unit of a chemical element • the amount of space a substance occupies • ...

Law of Conservation of Mass 2022-02-05

Law of Conservation of Mass crossword puzzle
Across
  1. the amount of space a substance occupies
  2. a _______ reaction
  3. when something is made
  4. enforcement of rules
  5. quantity of matter; weight
  6. a specific kind of matter with properties
  7. law of ________ of mass
  8. applying a force to move matter
  9. the relationship between the mass and its volume
  10. when two or more substances react
  11. water
Down
  1. air
  2. frozen water
  3. a group of atoms bonded together
  4. speed of an object or the change over time
  5. the basic unit of a chemical element
  6. when something is broken or unable to be fixed
  7. anything that occupies space and has a mass
  8. products turn to reactants

19 Clues: air • water • frozen water • a _______ reaction • enforcement of rules • when something is made • law of ________ of mass • quantity of matter; weight • products turn to reactants • applying a force to move matter • a group of atoms bonded together • when two or more substances react • the basic unit of a chemical element • the amount of space a substance occupies • ...

Chemistry Crossword Final Project (MM) 2021-05-18

Chemistry Crossword Final Project (MM) crossword puzzle
Across
  1. a change of one or more substances into new substances
  2. a reaction in which a compound breaks down into two or more simpler substances
  3. a strong base
  4. an electron in the outermost energy level of an atom; electrons that are gained or lost to form ions
  5. in a covalent compound, electrons are ____ between two atoms
  6. group 17 nonmetal
  7. an indicator solution that is clear in acids and neutral solutions, but turns pink in basic solutions
  8. a substance that changes color in the presence of acids or bases
  9. indicator paper that turns red in the presence of acids or blue in the presence of bases
  10. a reaction in which two or more reactants combine to form a single product
  11. chemical reaction that absorbs energy
  12. any compound that conducts electricity when melted or dissolved in water
  13. in an ionic compound, electrons are ____ from the metal to the nonmetal
  14. a number placed in front of the substances of a chemical equation to indicate how many are involved
  15. ____ acids and bases are found at the far ends of the pH scale
  16. ____ acids and bases are found towards the middle of the pH scale
  17. a type of compound that contains nonmetals only
  18. a substance that undergoes a chemical change
  19. a reaction in which a hydrocarbon reacts with oxygen to produce carbon dioxide and water
  20. a strong acid
  21. a type of element that loses electrons to form an ion
Down
  1. a substance that produces hydroxide ions when dissolved in water
  2. Group 1 metal
  3. an organic compound that consists of hydrogen and carbon
  4. atoms gain or lose electrons to become ___
  5. a displacement reaction in which the positive and negative portions of two ionic compounds are interchanged
  6. a number used to indicate how many atoms of a given element are in a compound
  7. a scale from 0 to 14 that measures the strength of acids and bases
  8. an ion that consists of two or more different elements
  9. Group 2 metal
  10. the smallest particle of an element
  11. a type of element that gains electrons to form an ion
  12. Group 18 element with a full valence shell
  13. a substance that produces hydrogen ions when dissolved in water
  14. a displacement reaction in which one element takes the place of another in a compound
  15. a positive ion
  16. a type of compound formed between a metal and a nonmetal
  17. chemical reaction that releases energy
  18. a combination of chemical symbols that show what elements make up a compound and the number of atoms of each element
  19. a chemical combination of two or more different elements
  20. rule that states that atoms become stable by having eight electrons in their outer energy level
  21. a new substance formed when substances undergo a chemical change
  22. a negative ion
  23. an atom or group of atoms that has a charge because of the loss or gain of electrons

44 Clues: Group 1 metal • a strong base • Group 2 metal • a strong acid • a positive ion • a negative ion • group 17 nonmetal • the smallest particle of an element • chemical reaction that absorbs energy • chemical reaction that releases energy • atoms gain or lose electrons to become ___ • Group 18 element with a full valence shell • a substance that undergoes a chemical change • ...

Science Crossword 2015-12-03

Science Crossword crossword puzzle
Across
  1. the condition of being transparent.
  2. Bonds chemical bond that involves the sharing of electron pairs between atoms
  3. Chemical
  4. any of the almost spherical concentric regions of matter that make up the earth and its atmosphere
  5. the regions of the surface, atmosphere, and hydrosphere of the earth
  6. the regions of the surface, atmosphere, and hydrosphere of the earth
  7. Chemical reaction thats is releases energy
  8. Forms into a gas
  9. a part or aspect of something abstract, especially one that is essential or characteristic.
  10. basic unit of a chemical element
Down
  1. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons
  2. all the waters on the earth's surface, such as lakes and seas
  3. to pass into or through a substance
  4. falling from the atmosphere
  5. the name given to a horizontal row of the periodic table.
  6. a solid material that is typically hard, shiny,
  7. water that collects as droplets on a cold surface when humid air is in contact with it.
  8. What Term us up on the periodic table
  9. Off Runs off buildings
  10. Chemical reaction that absorbs energy

20 Clues: Chemical • Forms into a gas • Off Runs off buildings • falling from the atmosphere • basic unit of a chemical element • to pass into or through a substance • the condition of being transparent. • What Term us up on the periodic table • Chemical reaction that absorbs energy • Chemical reaction thats is releases energy • a solid material that is typically hard, shiny, • ...

Chemical Foundation of Life 2024-10-07

Chemical Foundation of Life crossword puzzle
Across
  1. a bond that holds two atoms together by sharing valence electrons
  2. one of the small units that make up polymers
  3. a chemical reaction that releases energy to the surroundings
  4. an exothermic biological reaction in organisms in which smaller molecules are produced from larger ones
  5. negative charge particle in an atom
  6. a type of carbohydrate that could be glucose, fructose etc
  7. a biological molecule that speeds up chemical reactions in living things
  8. the random spreading out of particles from high concentration to low concentration
  9. an atom or molecule with a charge
  10. an endothermic biological reaction in organisms in which larger molecules are formed from smaller ones
  11. positive charge particle found in the nucleus of an atom
  12. substance with a unique, fixed composition that consists of two or more elements
  13. organic compound polymer made up of amino acids
Down
  1. energy needed to start a chemical reaction
  2. organic compound polymer such as sugar or starch
  3. small molecule (monomer) that is a building block of proteins
  4. a long chain molecule made of smaller units joined together
  5. a mixture in which the composition is not uniform throughout the mixture
  6. natural polymer of monomers of glucose and makes up structures in living things, such as the cell wall in plants
  7. a chemical reaction that absorbs energy from the surroundings
  8. compound found in living things that contains mainly carbon
  9. when the molecules of a substance are attracted (and stick slightly) to the molecules of a different substance
  10. a mixture in which the composition is uniform throughout the mixture
  11. neutral particle found in the nucleus of an atom
  12. pure substance that cannot be broken down into other types of substances
  13. the positively charged center of the atom consisting of protons and neutrons
  14. a molecule that has an imbalance of charge because the shared valence electrons in the covalent bond are not shared equally

27 Clues: an atom or molecule with a charge • negative charge particle in an atom • energy needed to start a chemical reaction • one of the small units that make up polymers • organic compound polymer made up of amino acids • organic compound polymer such as sugar or starch • neutral particle found in the nucleus of an atom • ...

morgan foster burkholder science evergreen high school 2017-10-10

morgan foster burkholder science evergreen high school crossword puzzle
Across
  1. where one or more new compounds are formed by the rearrangement of atoms
  2. a reaction where there is a net absorption of energy
  3. a substance that lowers the activation energy of a chemical reaction
  4. a reaction where you look for the plus sign on the product side
Down
  1. a reaction where there is oxides created
  2. a reaction where there is a net release of energy
  3. a chemical that accepts a hydrogen ion H+
  4. the amount of energy needed to pull two bonds apart
  5. a chemical that donates a hydrogen ion H+
  6. a reaction where you look for the plus sign on the reactant side

10 Clues: a reaction where there is oxides created • a chemical that accepts a hydrogen ion H+ • a chemical that donates a hydrogen ion H+ • a reaction where there is a net release of energy • the amount of energy needed to pull two bonds apart • a reaction where there is a net absorption of energy • a reaction where you look for the plus sign on the product side • ...

Blanca cortez chapter 13 2019-03-07

Blanca cortez chapter 13 crossword puzzle
Across
  1. Substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  2. A reaction between an acid and a base.
  3. A polyatomic ion made by removing a proton from a water molecule.
  4. An ionic compound commonly formed from the reaction between an acid and a base.
  5. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.
Down
  1. The deterioration of a metal, typically caused by atmospheric oxygen.
  2. The reacting substances in a chemical reaction.
  3. Description of a chemical reaction in which there is a net absorption of energy.
  4. that donates hydrogen ions.
  5. A substance that accepts a hydrogen ion.

10 Clues: that donates hydrogen ions. • A reaction between an acid and a base. • A substance that accepts a hydrogen ion. • The reacting substances in a chemical reaction. • A polyatomic ion made by removing a proton from a water molecule. • The deterioration of a metal, typically caused by atmospheric oxygen. • ...

Biochemistry Crossword 2023-05-05

Biochemistry Crossword crossword puzzle
Across
  1. water sticks to other water molecules.
  2. what goes into a chemical reaction; on the left of arrow
  3. proteins that catalyze chemical reactions by lowering the activation energy for the reaction to occur.
  4. has a high pH (more than 7)
  5. what is produced in a chemical reaction; on the right of the arrow
  6. structural part, controls chemical reactions, transport and defense
  7. solvent water dissolves most other polar substances like salt and sugar.
  8. action when water is pulled upward against gravity inside the xylem of a plant stem.
  9. quick energy source and part of plant cell walls
  10. long term energy source, insulation, protection, and part of cell membrane
Down
  1. strong ______ bonds hold the H to the O inside one water molecule.
  2. water has a high ___ __ ______ because it takes alot of heat to change phase from liquid to gas.
  3. weak _____ bonds hold one water molecule to another
  4. water molecules can float lightweight objects like a paper clip due to this property.
  5. water sticks to glass or other materials.
  6. acid genetic information that controls the cell
  7. the place on an enzyme where the subtrate and enzyme connect
  8. the property that means water can act like a magnet with + and - ends.
  9. has a low pH (less than 7)

19 Clues: has a low pH (less than 7) • has a high pH (more than 7) • water sticks to other water molecules. • water sticks to glass or other materials. • acid genetic information that controls the cell • quick energy source and part of plant cell walls • weak _____ bonds hold one water molecule to another • what goes into a chemical reaction; on the left of arrow • ...

chemistry 2020-12-17

chemistry crossword puzzle
Across
  1. substances on the left side of a chemical reaction
  2. has the same number of protons but different number of neutrons
  3. a solid that forms from a solution during a chemical reaction
  4. The smallest particle of an element is a
  5. has a neutral charge
Down
  1. has a negative charge
  2. number in front of a chemical compound is called?
  3. reaction a change in matter that produces a new substance
  4. has a positive charge
  5. melting example of physical change

10 Clues: has a neutral charge • has a negative charge • has a positive charge • melting example of physical change • The smallest particle of an element is a • number in front of a chemical compound is called? • substances on the left side of a chemical reaction • reaction a change in matter that produces a new substance • ...

chemistry 2019-04-30

chemistry crossword puzzle
Across
  1. substance that changes during a reaction
  2. a process requiring the absorption of heat
  3. changes affecting the form of a substance
  4. the action or process of precipitating a substance from a solution
  5. rapid chemical combination of a substance with oxygen
Down
  1. substance formed as a result of a chemical reaction
  2. process accompanied by the release of heat
  3. when a chemical substance combines
  4. a chemical reaction in which an acid and base react with each other
  5. smallest particle

10 Clues: smallest particle • when a chemical substance combines • substance that changes during a reaction • changes affecting the form of a substance • process accompanied by the release of heat • a process requiring the absorption of heat • substance formed as a result of a chemical reaction • rapid chemical combination of a substance with oxygen • ...

Chemical Reactions 2025-05-25

Chemical Reactions crossword puzzle
Across
  1. A type of reaction which gets hot. It's NOT endothermic
  2. A chemical which speeds up a reaction without being used up
  3. Fill in the blank: Decreasing the particle size increases the _____ of reaction
  4. Fill in the blank: When a dilute acid isn't reacting fast enough, you may need to increase the _________
  5. Fill in the blank: In a chemical reaction where gas is produced, you might hear fizzing and see __________
Down
  1. Fill in the blank: We put milk in the fridge to slow down a reaction by decreasing the ____________
  2. A type of reaction which is easy to undo
  3. Fill in the blank: When a chemical reaction happens you may see a _______ change
  4. A type of reaction which is hard to undo

9 Clues: A type of reaction which is easy to undo • A type of reaction which is hard to undo • A type of reaction which gets hot. It's NOT endothermic • A chemical which speeds up a reaction without being used up • Fill in the blank: Decreasing the particle size increases the _____ of reaction • ...

Chemical Science Y10 SBAB Xword 2025-05-23

Chemical Science Y10 SBAB Xword crossword puzzle
Across
  1. a methane (CH4) molecule has 3 _____ atoms
  2. most reactive metal in the metal activity series
  3. a chemical ______ is a written expression of a chemical reaction
  4. where electrons are usually located
  5. elements that are too cool to react
  6. during a chemical reaction, ______ break and reform
  7. a metal reacting with an ____ will produce hydrogen gas and a salt
  8. Cu is ____ reactive than Mg
  9. the metal in table salt
Down
  1. the rule that requires 8 electrons in the outer shell of an atom
  2. Group ___ elements have 2 electrons on the outer shell
  3. common name for Group 1 elements
  4. contain two or more atoms bonded together
  5. the law of _________ of mass states that matter cannot be destroyed nor created
  6. chemical _______ must always be balanced
  7. least reactive metal in the metal activity series

16 Clues: the metal in table salt • Cu is ____ reactive than Mg • common name for Group 1 elements • where electrons are usually located • elements that are too cool to react • chemical _______ must always be balanced • contain two or more atoms bonded together • a methane (CH4) molecule has 3 _____ atoms • most reactive metal in the metal activity series • ...

Changes to Matter 2021-01-20

Changes to Matter crossword puzzle
Across
  1. Gas ______ are a sign of a chemical reaction.
  2. Hydrogen is an example of an element.
  3. In a ________ change, a new substance is formed.
  4. A _______ is a combination of at least two atoms.
  5. The most common element in the atmosphere is _________.
  6. Earth's _____ is made mostly of oxygen and silicon.
  7. A pencil breaking is an example of a ______ change.
  8. In a chemical change, a ____ substance is formed.
Down
  1. In a chemical change, a new ________ is formed.
  2. A substance made of one thing is called a _____ substance.
  3. A solid formed by two liquids in a chemical reaction.
  4. The two most common elements on Earth's crust are ______ and silicon.
  5. Nitrogen is the most common element in the _________.
  6. A pure _______ is made of just one thing.
  7. A _______ is a molecule with more than one type of element.
  8. The element He on the Periodic Table
  9. The two most common elements on Earth's crust are oxygen and _______.

17 Clues: The element He on the Periodic Table • Hydrogen is an example of an element. • A pure _______ is made of just one thing. • Gas ______ are a sign of a chemical reaction. • In a chemical change, a new ________ is formed. • In a ________ change, a new substance is formed. • A _______ is a combination of at least two atoms. • ...

Chemistry Vocab 2021-01-25

Chemistry Vocab crossword puzzle
Across
  1. Property - A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability).
  2. The characteristic of being able to attract because of an electrical force
  3. The characteristic of a slow moving sticky substance
  4. Point - Temperature at which a liquid substance becomes a gas.
  5. The ability to be hammered or pressed down
  6. - Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  7. - A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  8. - Measure of the amount of matter in an object.
  9. The ability to produce electricity
  10. - A chemical substance that produces hydroxide ions in solution and tastes bitter.
  11. - A chemical substance that produces hydrogen ions in solution and tastes sour.
  12. The ability to be drawn out into thin wires
Down
  1. The ability to rust do to oxygen
  2. Change - Process where one or more substances are altered into new and different substances.
  3. Reaction - Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  4. Point - Temperature at which a solid substance becomes a liquid.
  5. - The readiness of a substance to produce hydrogen ions.
  6. - The amount of matter in a defined volume. (density = mass/volume)
  7. Change - A type of change in which the form of matter is altered but one substance is not transformed into another.
  8. - Chemical reaction in which thermal energy is released.
  9. - Chemical reaction in which thermal energy is absorbed.
  10. - The external features of a substance.
  11. - Property of a substance relating to how easily it reacts with other substances.
  12. - The readiness of a substance to produce hydroxide ions.
  13. - Property of a substance defining how easily it ignites and burns.
  14. Property - A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point).
  15. - Measure of acidity or basicity of a substance.
  16. - The characteristic smell of a substance.
  17. - The amount of space an object occupies.

29 Clues: The ability to rust do to oxygen • The ability to produce electricity • - The external features of a substance. • - The amount of space an object occupies. • The ability to be hammered or pressed down • - The characteristic smell of a substance. • The ability to be drawn out into thin wires • - Measure of the amount of matter in an object. • ...

Biology 2021-04-14

Biology crossword puzzle
Across
  1. Organic molecules such as proteins, nucleic acids, carbohydrates, and fats.
  2. A specialized protein that catalyzes (speeds up) the chemical reactions of a cell.
  3. Polysaccharide made up of a chain of glucose (monosaccharide) molecules
  4. The reactant , molecule upon which an enzyme acts
  5. lipid that is a solid at room temperature
  6. A carbon based molecule made by living things.
  7. process of adding a water molecule in the protein molecule to break it apart into amino acids. Now the body can use the amino acids to make its own proteins.
  8. modify (enzymes) especially by heat, acid, alkali, or ultraviolet radiation so that all of the original properties are removed or diminished.(doesn't match the active site any longer)
  9. are macromolecules that always contain carbon, hydrogen, and oxygen.
  10. molecule consisting of CH and a little O includes: fats, oils and waxes. monomer is a glycerol and three fatty acids.
Down
  1. enzyme that speeds up chemical reaction by lowering the activation energy
  2. a word used to describe a molecule that contains the element
  3. the strength of a solution.
  4. A polymer of 3 or more monosaccharides, formed by dehydration reactions.
  5. A lipid made of a phosphate group and two fatty acids; Consists of a hydrophilic polar head and two hydrophobic non-polar tails; forms cell membranes.
  6. A carbohydrate (C₆H₁₂O₆) produced by photosynthesis. It is the form of sugar that is used by the body for energy.
  7. a chemical substance formed as a result of a chemical reaction
  8. When something ends in -ose it is said to be a?
  9. a chemical substance that is present at the start of a chemical reaction (will be broken down)
  10. The building block of carbohydrate; a single sugar.
  11. Primary source of energy
  12. A smaller unit that is the BUILDING BLOCK of a polymer.

22 Clues: Primary source of energy • the strength of a solution. • lipid that is a solid at room temperature • A carbon based molecule made by living things. • When something ends in -ose it is said to be a? • The reactant , molecule upon which an enzyme acts • The building block of carbohydrate; a single sugar. • A smaller unit that is the BUILDING BLOCK of a polymer. • ...

7th Grade Chemistry 2024-04-16

7th Grade Chemistry crossword puzzle
Across
  1. a chemical change that happens when certain metals react with O2
  2. the smallest unit that makes up all matter
  3. the name of the element with the symbol Cl
  4. a physical property that shows shininess
  5. anything with mass and volume that takes up space
  6. negatively charged particles in an atom
  7. a chemical property that can be shown by running a pH test
  8. made when two or more different elements are chemically bonded
  9. the formula to find this physical property is d=m/v
Down
  1. positively charged particles in an atom
  2. the name of the element with the symbol Na
  3. the name of the element with the symbol O
  4. the name of the element with the symbol C
  5. a new solid formed during a chemical reaction
  6. a physical property that turns water into ice
  7. the name of the element with the symbol H
  8. properties that can be observed using the 5 senses
  9. particles in an atom with no positive or negative charge
  10. properties that are only observed in a chemical reaction

19 Clues: positively charged particles in an atom • negatively charged particles in an atom • a physical property that shows shininess • the name of the element with the symbol O • the name of the element with the symbol C • the name of the element with the symbol H • the name of the element with the symbol Na • the smallest unit that makes up all matter • ...

Life's Processes Vocab assignment 2025-03-20

Life's Processes Vocab assignment crossword puzzle
Across
  1. A chemical reaction that turns sunlight, carbon dioxide, & water in plant cells into glucose & oxygen.
  2. What comes out of a chemical reaction(the output).
  3. Matter cannot be created or destroyed, only changed.
  4. A chemical reaction that turns oxygen and glucose into ATP energy, water, and carbon dioxide.
Down
  1. A process where a set of substances undergo a chemical change to form a different substance.
  2. A change that can be observed without changing a substance's chemical composition.
  3. A simple sugar that carbs break into.
  4. The ability to do something.
  5. What goes into a chemical reaction(the input).

9 Clues: The ability to do something. • A simple sugar that carbs break into. • What goes into a chemical reaction(the input). • What comes out of a chemical reaction(the output). • Matter cannot be created or destroyed, only changed. • A change that can be observed without changing a substance's chemical composition. • ...

Science Crossword 2015-12-03

Science Crossword crossword puzzle
Across
  1. the condition of being transparent.
  2. Bonds chemical bond that involves the sharing of electron pairs between atoms
  3. Chemical
  4. any of the almost spherical concentric regions of matter that make up the earth and its atmosphere
  5. the regions of the surface, atmosphere, and hydrosphere of the earth
  6. the regions of the surface, atmosphere, and hydrosphere of the earth
  7. Chemical reaction thats is releases energy
  8. Forms into a gas
  9. a part or aspect of something abstract, especially one that is essential or characteristic.
  10. basic unit of a chemical element
Down
  1. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons
  2. all the waters on the earth's surface, such as lakes and seas
  3. to pass into or through a substance
  4. falling from the atmosphere
  5. the name given to a horizontal row of the periodic table.
  6. a solid material that is typically hard, shiny,
  7. water that collects as droplets on a cold surface when humid air is in contact with it.
  8. What Term us up on the periodic table
  9. Off Runs off buildings
  10. Chemical reaction that absorbs energy

20 Clues: Chemical • Forms into a gas • Off Runs off buildings • falling from the atmosphere • basic unit of a chemical element • to pass into or through a substance • the condition of being transparent. • What Term us up on the periodic table • Chemical reaction that absorbs energy • Chemical reaction thats is releases energy • a solid material that is typically hard, shiny, • ...

chemical reactions 2025-01-25

chemical reactions crossword puzzle
Across
  1. the breakdown of a substance into 2 or more simple substances
  2. if the energy released in a chemical reaction is primarily in the form of heat
  3. when 1 element replaces another in a compound
  4. a substance that prevents certain chemical reactions
  5. when 2 or more substances combine in a chemical reaction to form another substance
  6. an insoluble solid that forms when 2 ionic compounds in solution are combined
Down
  1. a reaction that requires energy in the form of heat
  2. in a chemical equation, the substances that react
  3. #s in front of the symbols and formulas in an equation
  4. a substance that speeds up a chemical reaction w/out itself being permanently changed

10 Clues: when 1 element replaces another in a compound • in a chemical equation, the substances that react • a reaction that requires energy in the form of heat • a substance that prevents certain chemical reactions • #s in front of the symbols and formulas in an equation • the breakdown of a substance into 2 or more simple substances • ...

Conceptual Chemistry Semester 2 Ch.3 & 9 2012-07-14

Conceptual Chemistry Semester 2 Ch.3 & 9 crossword puzzle
Across
  1. The Law of Mass Conservation tells us that the total number of individual atoms must be __________ on each side of the arrow in a chemical equation.
  2. In a chemical equation, elements/molecules in this state of matter are identified with a lower-case 'g'.
  3. A scientific law stating that elements combine in definite mass ratios to form compounds.
  4. A starting material in a chemical reaction, appearing BEFORE the arrow in a chemical equation.
Down
  1. A symbolic representation of a chemical reaction.
  2. A scientific law stating that there is no detectable change in the amount of mass present before and after a chemical reaction.
  3. A new material that is formed in a chemical reaction, appearing AFTER the arrow in a chemical equation.
  4. The method which we applied during an activity this week to collect carbon dioxide gas.
  5. In a chemical equation, elements/molecules in this state of matter are identified with a lower-case 'l'.
  6. In a chemical equation, elements/molecules in this state of matter are identified with a lower-case 's'.

10 Clues: A symbolic representation of a chemical reaction. • The method which we applied during an activity this week to collect carbon dioxide gas. • A scientific law stating that elements combine in definite mass ratios to form compounds. • A starting material in a chemical reaction, appearing BEFORE the arrow in a chemical equation. • ...

Regents Review Important Vocab 2024-06-05

Regents Review Important Vocab crossword puzzle
Across
  1. the amount of energy needed to start a reaction and form an activated complex from reactants
  2. a cell that requires electricity to cause a nonspontaneous chemical reaction to occur
  3. the gain of electrons and the loss of oxidation number
  4. one of two or more different forms of an element in the same phase
  5. the length of time for half of a given sample of a radioisotope to decay
  6. the stable valence electron configuration of eight electrons
  7. a measure of the attraction of a nucleus for a bonded electron
  8. the positively charged particle in the nucleus of an atom
  9. the substance being dissolved
  10. a substance that produces hydronium ions (H3O+) as the only positive ion when dissolved in water
  11. a mixture in which the substances are not uniformly distributed
  12. the changing of a nucleus of one element into that of a different element
  13. the phase change in which a gas changes directly into a solid
  14. the nuclear reaction that combines light nuclei into a heavier nucleus
  15. a substance formed in a chemical reaction shown on the right of a reaction arrow
  16. a solution that contains more solute than can dissolve in a saturated solution at a given temperature
  17. the site in an electrochemical cell where oxidation occurs
  18. the attraction of a hydrogen atom in one molecule for a N O or F atom in another molecule
  19. a measure of the disorder or randomness of a system
  20. organic compound containing only carbon and hydrogen
  21. a phase of matter without definite shape or volume
  22. the state in which the electrons of an atom occupy the lowest available energy levels
  23. matter is neither created nor destroyed in chemical reactions
  24. a measure of how much solute will dissolve in a certain amount of solvent at a specific temperature
  25. the property of metals that allows them to be hammered into shapes
  26. a _________ bond is formed by the unequal sharing of a pair of electrons between two nuclei
  27. base a substance that produces hydroxide ions (OH-) as the only negative ion when dissolved in water
  28. one of a homologous series of unsaturated hydrocarbons that contain one double bond
  29. a condition in which the rates of opposing reactions are equal
  30. a reaction in which the composition of a substance is changed
  31. one of a homologous series of unsaturated hydrocarbons that contain one triple bond
  32. an element that has both metallic and nonmetallic properties
  33. the reaction between an acid and a base that produces water and a salt
  34. the loss of electrons and an increase in oxidation state
  35. the organic reaction in which many small units are joined together to form a long chain
  36. the reaction of an alkali and a fat to produce glycerol and a soap
  37. a phase of matter with definite volume but no definite shape
  38. a covalently bonded group of atoms that have a net electric charge
  39. an _________________ organic compound contains one or more double or triple bonds
Down
  1. a horizontal row on the periodic table
  2. a mixture in which the substances are uniformly distributed
  3. an electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
  4. a bond formed by the sharing of electrons between two nuclei
  5. a diagram that shows valence electrons as dots around the atomic symbol
  6. a unit that describes 6.02x1023 particles of something
  7. the measure of the average kinetic energy of a substance’s particles
  8. the phase change in which solid particles gain enough energy to turn into the liquid phase (also known as melting)
  9. a chemical reaction that releases heat shown by a negative heat of reaction
  10. a substance whose water solution conducts an electric current
  11. a __________ organic compound contains only single covalent bonds
  12. one of a homologous series of saturated hydrocarbons
  13. _____________ solution: a solution containing the maximum amount of solute that can be dissolved at a given temperature
  14. the laboratory process of determining the concentration of an unknown solution by a reaction with a solution of known concentration
  15. a substance composed to two or more elements that are chemically combined in definite proportions by mass
  16. the phase change in which a solid changes directly into a gas
  17. the simplest whole number ratio in which atoms combine to form compounds
  18. the site in an electrochemical cell where reduction occurs
  19. an unstable nucleus that is radioactive
  20. a part of a voltaic cell that connects two containers and allows the flow of ions
  21. a reaction in which one element replaces a less reactive element in a compound
  22. a starting substance in a reaction shown on the left of a reaction arrow
  23. the nuclear reaction that splits large nuclei into smaller nuclei and neutrons
  24. the subatomic particle located in the nucleus that has a mass of 1 and no charge
  25. the total number of protons and neutrons in the nucleus of an atom
  26. a change that does not alter the chemical properties of the substance
  27. a chemical reaction that absorbs heat shown by a positive heat of reaction
  28. a transmutation caused by bombarding a nucleus with a high-energy particle such as a neutron or an alpha particle
  29. substances that cannot be broken down or decomposed into simpler substances by chemical means
  30. a vertical column on the periodic table
  31. a __________ bond is formed by the equal sharing of a pair of electrons between two nuclei
  32. the region in an atom where an electron is most likely to be located
  33. the number of protons in the nucleus of an atom
  34. the electrons in the outer energy level of an atom
  35. the amount of energy needed to remove the most loosely held electron from a neutral atom
  36. a chemical reaction between an alcohol and an acid to produce an ester and water
  37. the substance that dissolves the solute
  38. _____________ solution: a solution in which more solute can be dissolved at a given temperature
  39. an ________ bond is formed by the transfer of electrons from one atom to another
  40. the state in which the electrons of an atom occupy higher energy levels while the lower energy levels are not filled.
  41. compounds with the same molecular formula but different structural arrangements

80 Clues: the substance being dissolved • a horizontal row on the periodic table • an unstable nucleus that is radioactive • a vertical column on the periodic table • the substance that dissolves the solute • the number of protons in the nucleus of an atom • a phase of matter without definite shape or volume • the electrons in the outer energy level of an atom • ...

SCIENCE CROSSWORD PUZZLE 2024-09-03

SCIENCE CROSSWORD PUZZLE crossword puzzle
Across
  1. Organ which stores the bile juice secreted by liver temporarily.
  2. The process by which plants make their food using sunlight, water and carbon dioxide.
  3. The bouncing back of light from a surface.
  4. Part of human eye which is responsible for the color of the eye.
  5. A substance that increases the rate of a chemical reaction without being consumed.
  6. A process that leads to chemical changes in matter.
  7. The part of plant which is responsible for exchange of gases.
  8. Type of mirror which is used in side mirrors of cars.
Down
  1. The path of light is always ________.
  2. Type of reaction in which heat is evolved.
  3. The enzyme present in saliva.
  4. The phenomenon of bending of light when moving from one medium to another.
  5. The insoluble salts produced during a reaction are called ___________.
  6. The glands present in the wall of stomach.
  7. Type of reaction in which two or more elements combine to form a compound.

15 Clues: The enzyme present in saliva. • The path of light is always ________. • Type of reaction in which heat is evolved. • The glands present in the wall of stomach. • The bouncing back of light from a surface. • A process that leads to chemical changes in matter. • Type of mirror which is used in side mirrors of cars. • ...

Tkai 2022-03-08

Tkai crossword puzzle
Across
  1. Calculations
  2. mole to mass
  3. mass of 1 mole of a substance
  4. the maximum of product that could be producd based on the limiting reaction
  5. lowest whole tatio of elements
  6. calculations involving the mass relationships of elements in compounds
  7. utiple of an empirical formula
  8. Remember that the coefficients of reactants and products can represent # of atoms as well as the # of moles that reacted.
Down
  1. You can use the coefficients in a balanced chemical equation to these
  2. the substance that is not used up completely in a reaction
  3. determining the number of moles produced from a reaction, you must first begin with a balanced equation
  4. is the quantitative relationship between the amount of reactants used and the amount of products formed.
  5. the substance the will used up first in a chemical reaction
  6. the mass of 1 mole of a substance
  7. the measured amount of a product obtained from a reaction

15 Clues: Calculations • mole to mass • mass of 1 mole of a substance • lowest whole tatio of elements • utiple of an empirical formula • the mass of 1 mole of a substance • the measured amount of a product obtained from a reaction • the substance that is not used up completely in a reaction • the substance the will used up first in a chemical reaction • ...

Tkai 2022-03-08

Tkai crossword puzzle
Across
  1. Calculations
  2. mole to mass
  3. mass of 1 mole of a substance
  4. the maximum of product that could be producd based on the limiting reaction
  5. lowest whole tatio of elements
  6. calculations involving the mass relationships of elements in compounds
  7. utiple of an empirical formula
  8. Remember that the coefficients of reactants and products can represent # of atoms as well as the # of moles that reacted.
Down
  1. You can use the coefficients in a balanced chemical equation to these
  2. the substance that is not used up completely in a reaction
  3. determining the number of moles produced from a reaction, you must first begin with a balanced equation
  4. is the quantitative relationship between the amount of reactants used and the amount of products formed.
  5. the substance the will used up first in a chemical reaction
  6. the mass of 1 mole of a substance
  7. the measured amount of a product obtained from a reaction

15 Clues: Calculations • mole to mass • mass of 1 mole of a substance • lowest whole tatio of elements • utiple of an empirical formula • the mass of 1 mole of a substance • the measured amount of a product obtained from a reaction • the substance that is not used up completely in a reaction • the substance the will used up first in a chemical reaction • ...

Balancing Chemical Equations Station Lab Crossword 2022-10-05

Balancing Chemical Equations Station Lab Crossword crossword puzzle
Across
  1. Something that takes up space.
  2. Shows that something was created or destroyed.
  3. Means that a reaction is taking place in an equation.
  4. Matter cannot be created or ________.
  5. Before chemical reaction.
  6. Need to be equal on both sides of the equation.
Down
  1. Shows nothing was created or destroyed.
  2. Law of __________ of mass
  3. After chemical reaction.
  4. event that changes matter

10 Clues: After chemical reaction. • Law of __________ of mass • event that changes matter • Before chemical reaction. • Something that takes up space. • Matter cannot be created or ________. • Shows nothing was created or destroyed. • Shows that something was created or destroyed. • Need to be equal on both sides of the equation. • ...

Chemistry Crossword 2017-12-05

Chemistry Crossword crossword puzzle
Across
  1. a reaction that takes place when two or more substances react to for
  2. the sum of the number of protons and neutrons in an atom
  3. metals that have a density of 5 or higher (e.g., copper, zinc, lead, mercury, cadmium,nickel); heavy metals are one type of substance monitored to determine water quality
  4. 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
  5. ability to do work
  6. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals.
  7. group 17 elements in the periodic table;the most reactive non-metals
  8. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  9. stance that helps a chemical reaction to proceed more quickly
  10. chemical combination of two or more elements in a specific ratio
  11. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  12. pure substance formed when at least one metal and one non-metal combine
  13. ability of a substance to conduct electricity or heat
  14. slow chemical change that occurs when oxygen in the air reacts with a metal
Down
  1. major source: motor vehicles
  2. pure substance that cannot be broken down into other substances; substance made up of only one type of atom
  3. compounds whose molecules do not contain carbon, also included as inorganic compounds are carbon dioxide, carbon monoxide, carbonates, and cyanides
  4. catalyst involved in chemical reactions in living things
  5. mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
  6. chemial reaction that absorbs energy
  7. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  8. an experiment in which all reactants and all products of a chemical reaction are accounted for
  9. combustion chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  10. (COg) colourless, odourless gas;produced by incomplete combustion of chemicals containing carbon (e.g.
  11. number of protons in the nucleus of one atom of an element
  12. atom that has become electrically charged because it has lost or gained electrons; a positive ion is an atom that has lost one or more electrons;a negative ion is an atom that has gained one or more electrons

26 Clues: ability to do work • major source: motor vehicles • chemial reaction that absorbs energy • ability of a substance to conduct electricity or heat • the sum of the number of protons and neutrons in an atom • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • ...

chem puzzle 2021-12-11

chem puzzle crossword puzzle
Across
  1. a reaction in which two reactants combine to form one product.
  2. the symbolic representation of a chemical reaction in the form of symbols and formula
  3. high-temperature exothermic redox chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.
  4. the species formed from chemical reactions
  5. a substance or compound added to a system to cause a chemical reaction
  6. a chemical reaction in which one element is replaced by another in a compound
Down
  1. a chemical process involving the exchange of bonds between two reacting chemical species which results in the creation of products with similar or identical bonding affiliations.
  2. the process or effect of simplifying a single chemical entity into two or more fragments.
  3. a list of elements in decreasing order of their reactivity.

9 Clues: the species formed from chemical reactions • a list of elements in decreasing order of their reactivity. • a reaction in which two reactants combine to form one product. • a substance or compound added to a system to cause a chemical reaction • a chemical reaction in which one element is replaced by another in a compound • ...

Chemical Reactions and Equations 2016-07-13

Chemical Reactions and Equations crossword puzzle
Across
  1. The substance that are formed as a result of chemical reaction.
  2. A chemical equation which contains an equal number of atoms of each element on both side of the equation.
  3. Double displacement are __________ in nature.
  4. A process which involves gain of hydrogen or loss of oxygen.
  5. Formation of nitric oxide from nitrogen and oxygen at 3000 C is an example of _______ reaction.
  6. The oxidation of fats and oils in a food resulting into an unpleasant smell and taste.
Down
  1. A chemical ________ is a symbolic representation of a chemical change.
  2. The substance which take part in a chemical reaction.
  3. A process which involves gain of oxygen or loss of hydrogen.
  4. ____________ reaction are oxidation reactions and are of exothermic nature.

10 Clues: Double displacement are __________ in nature. • The substance which take part in a chemical reaction. • A process which involves gain of oxygen or loss of hydrogen. • A process which involves gain of hydrogen or loss of oxygen. • The substance that are formed as a result of chemical reaction. • ...

Morgan T 2025-02-13

Morgan T crossword puzzle
Across
  1. The total kinetic (motion) energy o
  2. chemical reaction
  3. a state of matter that has a definite shape and volume
  4. The process by which one or more substances
  5. releases heat
Down
  1. Reaction A chemical reaction in which heat is absorbed
  2. A substance that takes part in and undergoes
  3. A substance produced during a chemical reaction
  4. a substance that takes part in and undergoes change during a reaction
  5. a substance or matter in a state in which it will expand freely
  6. a type of matter with specific properties that make it less rigid

11 Clues: releases heat • chemical reaction • The total kinetic (motion) energy o • The process by which one or more substances • A substance that takes part in and undergoes • A substance produced during a chemical reaction • a state of matter that has a definite shape and volume • Reaction A chemical reaction in which heat is absorbed • ...

Thermochemistry 2013-04-22

Thermochemistry crossword puzzle
Across
  1. System+ Surroundings
  2. The study of heat changes during chemical reactions
  3. The energy change in an overall chemical reaction is equal to the sum of the energy changes in the individual reactions comprising it.
Down
  1. The transfer of kinetic energy between objects of different temperature
  2. when heat is release from a chemical reaction
  3. The measure of kinetic energy between particles
  4. when heat is needed for a chemical reaction
  5. everything else not being studied
  6. potential energy change of a system during a chemical change or physical change
  7. Part of the universe being studied

10 Clues: System+ Surroundings • everything else not being studied • Part of the universe being studied • when heat is needed for a chemical reaction • when heat is release from a chemical reaction • The measure of kinetic energy between particles • The study of heat changes during chemical reactions • The transfer of kinetic energy between objects of different temperature • ...

Photosynthesis & Respiration 2022-11-01

Photosynthesis & Respiration crossword puzzle
Across
  1. to run all of the cell’s organism’s processes. The output of respiration.
  2. The process in which plants use sunlight, with water and oxygen
  3. The chemical that makes plants green.
  4. The chemical formula for water.
  5. The green organelles inside of a plant cell, and is responsible for carrying out photosynthesis.
  6. The organelle that is responsible for creating energy for the cell to use; also where most of respiration occurs.
  7. Where a small amount of respiration occurs.
Down
  1. The starting substances to start a chemical reaction, (Input).
  2. An organism that doesn't make its own food.
  3. The process by which plants and animals use glucose and oxygen.
  4. A producer that makes its own food and is the start of a food web
  5. The beginning of the food chain; uses photosynthesis
  6. The chemical formula for glucose.
  7. The chemical formula for carbon dioxide.
  8. The end results of a chemical reaction (Output).

15 Clues: The chemical formula for water. • The chemical formula for glucose. • The chemical that makes plants green. • The chemical formula for carbon dioxide. • An organism that doesn't make its own food. • Where a small amount of respiration occurs. • The end results of a chemical reaction (Output). • The beginning of the food chain; uses photosynthesis • ...

Exothermic, Endothermic Infromation 2023-11-30

Exothermic, Endothermic Infromation crossword puzzle
Across
  1. heat is released
  2. When NH4NO3 dissolves in water...
  3. What type of reaction happens in a hand warmer
  4. Is the equation 6CO2+6H2O→C6H12O6+6O2 endothermic or exothermic
  5. Is respiration an endothermic or exothermic reaction?
  6. The triangle stands for...
  7. heat is absorbed
  8. What happens to energy when bonds are Broken
Down
  1. Reaction between Carbon and Oxygen
  2. Evaporation is an endothermic reaction because...
  3. Iron oxide + carbon
  4. Baking bread and cooking an egg are examples of...
  5. Is photosynthesis an exothermic or endothermic reaction?
  6. the amount of heat absorbed in a reaction
  7. If a chemical reaction is EXOTHERMIC, the temperature would...
  8. What happens to energy when bonds are formed

16 Clues: heat is released • heat is absorbed • Iron oxide + carbon • The triangle stands for... • When NH4NO3 dissolves in water... • Reaction between Carbon and Oxygen • the amount of heat absorbed in a reaction • What happens to energy when bonds are formed • What happens to energy when bonds are Broken • What type of reaction happens in a hand warmer • ...

Law of Conservation of Mass 2022-02-05

Law of Conservation of Mass crossword puzzle
Across
  1. enforcement of rules
  2. water
  3. a _______ reaction
  4. a specific kind of matter with properties
  5. applying a force to move matter
  6. the amount of space a substance occupies
  7. when something is made
  8. air
  9. products turn to reactants
Down
  1. speed of an object or the change over time
  2. law of ________ of mass
  3. quantity of matter; weight
  4. a group of atoms bonded together
  5. when something is broken or unable to be fixed
  6. anything that occupies space and has a mass
  7. frozen water
  8. the basic unit of a chemical element
  9. the relationship between the mass and its volume
  10. when two or more substances react

19 Clues: air • water • frozen water • a _______ reaction • enforcement of rules • when something is made • law of ________ of mass • quantity of matter; weight • products turn to reactants • applying a force to move matter • a group of atoms bonded together • when two or more substances react • the basic unit of a chemical element • the amount of space a substance occupies • ...

Chemical reactions 2024-04-30

Chemical reactions crossword puzzle
Across
  1. Reactions in which heat energy is absorbed
  2. Reaction where one or a group of atoms is displaced by a more reactive atom or group of atoms
  3. Type of decomposition reaction where the compound decomposes on exposure to light
  4. Eating up of metals as a result of exposure to air, moisture or other gasses
  5. Reactions in which heat is released along with the products
  6. Substance that helps speed up the chemical reaction
  7. Process which involves loss of oxygen or gain of hydrogen
Down
  1. Chemical equation using symbols and formulae for reactants and products
  2. Substance that gives hydrogen or gains oxygen
  3. Substance that gives oxygen or gains hydrogen
  4. Reaction where a single substance decomposes to give 2 or more substances
  5. Reaction in which insoluble salts are formed
  6. Reaction where two or more substances combine to form a single substance
  7. Equalize number of atoms on either side of the equation using the smallest coefficients
  8. Process which involves gain of oxygen or loss of hydrogen
  9. Oxidation of oils or fats in food resulting in bad smell or taste

16 Clues: Reactions in which heat energy is absorbed • Reaction in which insoluble salts are formed • Substance that gives hydrogen or gains oxygen • Substance that gives oxygen or gains hydrogen • Substance that helps speed up the chemical reaction • Process which involves gain of oxygen or loss of hydrogen • Process which involves loss of oxygen or gain of hydrogen • ...

Chapter 13 Caroline Davis 2020-10-19

Chapter 13 Caroline Davis crossword puzzle
Across
  1. a chemical that donates a hydrogen atom
  2. a chemical that accepts a hydrogen atom
  3. if changed, the equilibrium shifts to oppose change, until new equilibrium is reached.
  4. when there is a net absorption of energy during a chemical reaction
  5. when there is a net release of energy during a chemical reaction
Down
  1. minimum energy required to overcome the intentional breaking of bonds in reactants.
  2. The amount of energy required to pull two bonded atoms apart.
  3. a substance that lowers the activation energy of a chemical reactant, which causes the reaction to happen faster.
  4. how quickly the concentration of reactions decreases and how quickly and concentration of products increases.
  5. when reaction and it’s reverse act at the same rate.

10 Clues: a chemical that donates a hydrogen atom • a chemical that accepts a hydrogen atom • when reaction and it’s reverse act at the same rate. • The amount of energy required to pull two bonded atoms apart. • when there is a net release of energy during a chemical reaction • when there is a net absorption of energy during a chemical reaction • ...

Chemical Equations Crossword 2022-11-17

Chemical Equations Crossword crossword puzzle
Across
  1. An equation has unequal atoms on both sides
  2. Number of Hydrogen in water
  3. (Goes with 7) cannot be created or destroyed
  4. ___ of conservation of mass
  5. Number of Oxygen in water
  6. (Goes with 11) Law that states matter
  7. Anything that takes up space or has mass
Down
  1. Compounds before the chemical reaction occurs
  2. Compound(s) after the reaction occurs
  3. What does the arrow represent in the chemical equation?
  4. An equation has equal atoms on both sides
  5. Type of equation used for chemical reactions

12 Clues: Number of Oxygen in water • Number of Hydrogen in water • ___ of conservation of mass • Compound(s) after the reaction occurs • (Goes with 11) Law that states matter • Anything that takes up space or has mass • An equation has equal atoms on both sides • An equation has unequal atoms on both sides • (Goes with 7) cannot be created or destroyed • ...

Kinetics Of Homogeneous Reaction 2024-11-08

Kinetics Of Homogeneous Reaction crossword puzzle
Across
  1. the reaction may classified based upon the_ _ _ of reaction
  2. hydrogenation of_ _ _ is a catalytic reaction which makes use of nickel catalyst
  3. catalytic reactions are those reaction are involve the use of_ _ _ _ _ to enhance the reaction rates
  4. order of reaction is entirely an_ _ _
  5. the molecularity of reaction must be a_ _ _
  6. the molecularity of reaction is a_ _ _ to satisfy the experimental findings
  7. A reaction of which the sum of order with respect to the reactants participated in the reaction is two is called a_ _ _ _ reaction
  8. the reaction may classified based upon the _ _ _ as exothermic and endothermic reaction
  9. A single reaction is one which represnted by a single_ _ _ _ equation and a single rate of equation
Down
  1. elementary reactions are _ _ _ step reaction
  2. the reaction are also classified as reversibal and irreversibal based upon whether they proceed in one obth the_ _ _ _
  3. A_ _ _ reaction is one which takes place in only one phase
  4. whereas nonelementary reaction are _ _ _ _
  5. many chemical reaction proceed through a number of steps and each individual is called as an_ _ _ _
  6. A reaction of which overall order of reaction is one is called_ _ _
  7. A non-chain reaction is one in which an intermediate is formed in the _ _ _ _ when then disappears as it reacts further to yeild product
  8. order of reaction may be a whole number or a _ _ _

17 Clues: order of reaction is entirely an_ _ _ • whereas nonelementary reaction are _ _ _ _ • the molecularity of reaction must be a_ _ _ • elementary reactions are _ _ _ step reaction • order of reaction may be a whole number or a _ _ _ • A_ _ _ reaction is one which takes place in only one phase • the reaction may classified based upon the_ _ _ of reaction • ...

Chem Lesson 2 Puzzle 2025-02-18

Chem Lesson 2 Puzzle crossword puzzle
Across
  1. smallest unit of matter
  2. the product of their combination synthesis reaction. Write the balanced chemical equation for the reaction.
  3. usually a group of 2 or more non-metals bonded together
  4. the ability of a substance to dissolve in a solvent, forming a homogeneous solution
  5. you want: Moles of CaCO₃.
  6. the simplified version of a chemical reaction that shows only the species involved in the reaction
  7. Given: 10 grams of calcium carbonate (CaCO₃).
  8. You are given two reactants: Aluminum (Al) and Sulfur (S).
  9. a list of metals ranked by their ability to displace another metal in a compound
Down
  1. a reaction in which a substance reacts with oxygen to produce energy, typically in the form of heat or light. Common products are carbon dioxide and water
  2. a reaction that involves the transfer of electrons; seen in electrochemical cells
  3. gains electrons and gains hydrogen while losing oxygen
  4. a type of reaction where two or more substances combine; form a new substance
  5. a mole to mole ratio needed
  6. loses electrons and gains oxygen while losing hydrogen

15 Clues: smallest unit of matter • you want: Moles of CaCO₃. • a mole to mole ratio needed • Given: 10 grams of calcium carbonate (CaCO₃). • gains electrons and gains hydrogen while losing oxygen • loses electrons and gains oxygen while losing hydrogen • usually a group of 2 or more non-metals bonded together • You are given two reactants: Aluminum (Al) and Sulfur (S). • ...

Chapter 2: The Chemistry of Living Things 2025-02-03

Chapter 2: The Chemistry of Living Things crossword puzzle
Across
  1. single strong of 3 to 100 amino acids
  2. an important class of lipids
  3. leads to loss of biological function
  4. key element of organic molecules
  5. nitrogenous base in the structure of RNA
  6. has two additional phosphate groups
  7. substance that speeds the rate of a chemical reaction without being altered or consumed by the reaction
  8. fructose
Down
  1. found between molecules
  2. dehydration synthesis process
  3. atoms of the same element that have a different number of neutrons.
  4. strongest chemical bond in nature
  5. Give off energy that is radiation
  6. two monosaccharides linked together
  7. help biochemical reactions to occur, do not change the final result of the reaction

15 Clues: fructose • found between molecules • an important class of lipids • dehydration synthesis process • key element of organic molecules • strongest chemical bond in nature • Give off energy that is radiation • two monosaccharides linked together • has two additional phosphate groups • leads to loss of biological function • single strong of 3 to 100 amino acids • ...

Chemical Reactions Review 2024-04-23

Chemical Reactions Review crossword puzzle
Across
  1. letters and numbers showing the types and number of atoms that make up a substance
  2. something that can be observed about a substance, such as color, smell, or boiling point
  3. the tiny pieces that all matter is made of
  4. a substance that lowers the activation energy of a chemical reaction
  5. an ending substance that is made during a chemical reaction
  6. a process in which atoms rearrange to form new substances
Down
  1. the amount of energy required to create a chemical reaction
  2. something that is made of all the same atoms or groups of atoms
  3. a strong force of attraction holding two or more atoms together
  4. a starting substance that is part of a chemical reaction
  5. a group of atoms joined together in a particular way

11 Clues: the tiny pieces that all matter is made of • a group of atoms joined together in a particular way • a starting substance that is part of a chemical reaction • a process in which atoms rearrange to form new substances • the amount of energy required to create a chemical reaction • an ending substance that is made during a chemical reaction • ...

Chemical Reactions 2023-04-03

Chemical Reactions crossword puzzle
Across
  1. an ending substance that is made during a chemical reaction
  2. a process in which atoms rearrange to form new substances (two words)
  3. Building block of all matter
  4. to change the order or position of something
  5. something that is made of all the same atoms or groups of atoms
  6. a group of atoms joined together in a particular way
  7. a starting substance that is part of a chemical reaction
Down
  1. letters and numbers showing the types and number of atoms that repeat to make up a substance (two words)
  2. something that can be observed about a substance, such as color, smell, or boiling point
  3. A chemical reaction that produces heat as a product
  4. A chemical reaction that absorbs heat from its environment

11 Clues: Building block of all matter • to change the order or position of something • A chemical reaction that produces heat as a product • a group of atoms joined together in a particular way • a starting substance that is part of a chemical reaction • A chemical reaction that absorbs heat from its environment • an ending substance that is made during a chemical reaction • ...

Chemistry Crossword 2015-11-19

Chemistry Crossword crossword puzzle
Across
  1. Homogeneous mixture
  2. A system of easy-to-see warning symbols on hazardous materials
  3. Mass of one atom of an element calculated by total number of protons, neutrons, and electrons of that atom
  4. An element in which its properties are between those of metals and solid nonmetals
  5. substance that helps a chemical reaction to proceed faster
  6. Neutral particle in the nucleus of an atom
  7. Invisible negatively charged particle that orbits the nucleus of an atom
  8. Second group of elements in the periodic table; not as reactive as those in the first group
  9. Positively charged particle in the nucleus of an atom
  10. A chemical reaction that absorbs heat energy
  11. Change of state from a gas to a solid
  12. Chemical combination of two or more elements in a specific ration
Down
  1. Change of state from a solid to a liquid
  2. Pure substance that cannot be broken down into other substances; made up of only one type of atom
  3. Slow chemical change that occurs when oxygen in the air reacts with a metal
  4. Vertical column of elements in the periodic table
  5. Group of atoms joined by covalent bonds
  6. ability of a substance to conduct electricity or heat
  7. Change of state from a gas to liquid
  8. Horizontal row of elements in the periodic table
  9. First group of elements in the periodic table; most reactive of the metals
  10. A chemical reaction that releases heat energy
  11. Group 17 elements in the Periodic Table of Elements; most reactive nonmetals
  12. Catalyst involved in a chemical reactions within living things
  13. Anything that has a mass and occupies space

25 Clues: Homogeneous mixture • Change of state from a gas to liquid • Change of state from a gas to a solid • Group of atoms joined by covalent bonds • Change of state from a solid to a liquid • Neutral particle in the nucleus of an atom • Anything that has a mass and occupies space • A chemical reaction that absorbs heat energy • A chemical reaction that releases heat energy • ...

Unit B Crossword- Hudson Cordwell 9S 2017-11-11

Unit B Crossword- Hudson Cordwell 9S crossword puzzle
Across
  1. Chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  2. Change of state from a liquid to a gas
  3. Change that results when two or more substances react to create a different substance or substances
  4. Orbit of electrons around the nucleus of an atom
  5. An experiment in which all reactants and all products of a chemical reaction are accounted for
  6. Number of protons in the nucleus of one atom of an element
  7. Principle that matter is not created or destroyed in a chemical reaction
  8. A system of easy to see warning symbols on hazardous materials
  9. Group of atoms joined by covalent bonds
  10. Group of atoms atoms acting as one
Down
  1. Change of state from a gas to a liquid
  2. Catalyst involved in chemical reactions in living things
  3. Group 1 elements in the periodic table, not including hydrogren
  4. Group 2 elements in the periodic table
  5. The most reactive non-metals
  6. Slow chemical change that occurs when oxygen in the air reacts with a metal
  7. Change of state from a solid to a liquid
  8. Anything that has mass and occupies space
  9. Mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom
  10. A solution in which water is the solvent
  11. The most stable and unreactive elements
  12. Cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated from the other substance
  13. Combination of symbols that represent a compound
  14. The smallest part of an element that is representative of that element
  15. Chemical combination of two or more elements in a specific ratio

25 Clues: The most reactive non-metals • Group of atoms atoms acting as one • Change of state from a gas to a liquid • Change of state from a liquid to a gas • Group 2 elements in the periodic table • The most stable and unreactive elements • Group of atoms joined by covalent bonds • Change of state from a solid to a liquid • A solution in which water is the solvent • ...

Matter and it's Properties 2025-08-23

Matter and it's Properties crossword puzzle
Across
  1. a change that alters the form or appearance of a substance but not its chemical identity or composition
  2. a property that depends on the amount of matter present
  3. the smallest unit of an element
  4. a new substance formed at the end of a chemical reaction
  5. a homogeneous mixture where one or more substances are uniformly dissolved into another substance
  6. a physical combination of two or more substances where each substance retains its own chemical identity and properties
  7. a property of a substance that can be observed or measured without changing its chemical composition or identity
  8. a pure substance that cannot be broken down into simpler substances by ordinary chemical means
  9. a combination of two or more substances where the composition is not uniform throughout
  10. has a definite volume but indefinite shape
Down
  1. a substance or mixture with a uniform composition and properties throughout its entire volume
  2. has a definite shape and definite volume
  3. a starting material that undergoes a chemical change to become a new substance
  4. anything that has mass and takes up space
  5. the amount of matter in an object
  6. a pure substance formed when two or more different chemical elements are chemically bonded together
  7. has an indefinite shape and indefinite volume
  8. a property that does not depend on the amount of matter present
  9. a property that is the inherent ability of a substance to undergo a chemical change or reaction

19 Clues: the smallest unit of an element • the amount of matter in an object • has a definite shape and definite volume • anything that has mass and takes up space • has a definite volume but indefinite shape • has an indefinite shape and indefinite volume • a property that depends on the amount of matter present • a new substance formed at the end of a chemical reaction • ...

Balancing Equations 2023-04-03

Balancing Equations crossword puzzle
Across
  1. When one side of the equation is not equal to the other
  2. When both sides of the equation are equal
  3. The elements and compounds before a chemical reaction
  4. A group of atoms bonded together
  5. The elements and compounds after a chemical reaction
Down
  1. the symbolic representation of a chemical reaction
  2. tells you the number of atoms of that element
  3. A number placed in front of a formula to balance a chemical equation
  4. The basic unit of a chemical element
  5. Anything that has mass and takes up space

10 Clues: A group of atoms bonded together • The basic unit of a chemical element • When both sides of the equation are equal • Anything that has mass and takes up space • tells you the number of atoms of that element • the symbolic representation of a chemical reaction • The elements and compounds after a chemical reaction • The elements and compounds before a chemical reaction • ...

Law of Conservation of Mass 2022-02-05

Law of Conservation of Mass crossword puzzle
Across
  1. when two or more substances react
  2. the amount of space a substance occupies
  3. a group of atoms bonded together
  4. the basic unit of a chemical element
  5. a specific kind of matter with properties
  6. when something is made
  7. water
  8. the relationship between the mass and its volume
Down
  1. when something is broken or unable to be fixed
  2. a _______ reaction
  3. speed of an object or the change over time
  4. frozen water
  5. air
  6. law of ________ of mass
  7. quantity of matter; weight
  8. anything that occupies space and has a mass
  9. products turn to reactants
  10. enforcement of rules
  11. applying a force to move matter

19 Clues: air • water • frozen water • a _______ reaction • enforcement of rules • when something is made • law of ________ of mass • quantity of matter; weight • products turn to reactants • applying a force to move matter • a group of atoms bonded together • when two or more substances react • the basic unit of a chemical element • the amount of space a substance occupies • ...

Law of Conservation of Mass 2022-02-05

Law of Conservation of Mass crossword puzzle
Across
  1. when two or more substances react
  2. the amount of space a substance occupies
  3. a group of atoms bonded together
  4. the basic unit of a chemical element
  5. a specific kind of matter with properties
  6. when something is made
  7. water
  8. the relationship between the mass and its volume
Down
  1. when something is broken or unable to be fixed
  2. a _______ reaction
  3. speed of an object or the change over time
  4. frozen water
  5. air
  6. law of ________ of mass
  7. quantity of matter; weight
  8. anything that occupies space and has a mass
  9. products turn to reactants
  10. enforcement of rules
  11. applying a force to move matter

19 Clues: air • water • frozen water • a _______ reaction • enforcement of rules • when something is made • law of ________ of mass • quantity of matter; weight • products turn to reactants • applying a force to move matter • a group of atoms bonded together • when two or more substances react • the basic unit of a chemical element • the amount of space a substance occupies • ...

Science vocabularly (no spaces in words) 2020-10-19

Science vocabularly (no spaces in words) crossword puzzle
Across
  1. A chemical change that causes the release of heat
  2. Cannot be created or destroyed, but may change form
  3. A chemical change accompanied by the loss of heat
  4. How much exposed area a solid object has
  5. Something that increases the rate of the reaction but does not undergo change
Down
  1. The small text in a chemical formula next to an element showing how much of the element is present.
  2. How tightly packed the reactants are
  3. The result of a chemical reaction
  4. Cannot be created or destroyed
  5. Something that undergoes a change during a chemical reaction

10 Clues: Cannot be created or destroyed • The result of a chemical reaction • How tightly packed the reactants are • How much exposed area a solid object has • A chemical change that causes the release of heat • A chemical change accompanied by the loss of heat • Cannot be created or destroyed, but may change form • Something that undergoes a change during a chemical reaction • ...

Chemical reactions and propeprties of matter 2024-02-16

Chemical reactions and propeprties of matter crossword puzzle
Across
  1. Adding a rock in to a cup of water lead to a change in________ this is a type of physical property.
  2. When a screw deteriorates is a sign of _____.
  3. which type of properties are characteristics that can be observed or measured without changing
  4. is a type of change in which a new substance is formed.
  5. is a chemical reaction where the substances reacting release energy as heat.
  6. The ability of matter to burn is known as____.
Down
  1. During a chemical reaction bubbles can be produced the is known as ________.
  2. reaction is a process in which one or more substances are converted or mixed to form a new one.
  3. are the species formed.
  4. are properties that describe how a substance behaves during a chemical reaction.
  5. is any chemical reaction that absorbs heat.
  6. are starting materials

12 Clues: are starting materials • are the species formed. • is any chemical reaction that absorbs heat. • When a screw deteriorates is a sign of _____. • The ability of matter to burn is known as____. • is a type of change in which a new substance is formed. • During a chemical reaction bubbles can be produced the is known as ________. • ...

Chemical Equations Crossword 2022-11-17

Chemical Equations Crossword crossword puzzle
Across
  1. An equation has unequal atoms on both sides
  2. Number of Hydrogen in water
  3. (Goes with 7) cannot be created or destroyed
  4. ___ of conservation of mass
  5. Number of Oxygen in water
  6. (Goes with 11) Law that states matter
  7. Anything that takes up space or has mass
Down
  1. Compounds before the chemical reaction occurs
  2. Compound(s) after the reaction occurs
  3. What does the arrow represent in the chemical equation?
  4. An equation has equal atoms on both sides
  5. Type of equation used for chemical reactions

12 Clues: Number of Oxygen in water • Number of Hydrogen in water • ___ of conservation of mass • Compound(s) after the reaction occurs • (Goes with 11) Law that states matter • Anything that takes up space or has mass • An equation has equal atoms on both sides • An equation has unequal atoms on both sides • (Goes with 7) cannot be created or destroyed • ...