chemical reaction Crossword Puzzles

5th six weeks 2023-03-29

5th six weeks crossword puzzle
Across
  1. Change that Is made Chemically
  2. a chemical formula
  3. tropism of gravity
  4. outside stimuli that force an organism's response
  5. another word for element
  6. number after the chemical formula
  7. table that contains all the elements
  8. pressure of water inside a plants cells
  9. balance of the body
  10. tropism of water
  11. 2 or more atoms
Down
  1. change only in appereance
  2. a single atom
  3. reaction to stimulus by plants
  4. tropism of touch
  5. tropism of light
  6. smaller than an atom itself
  7. Stimuli inside stimuli that forces an organism's reaction

18 Clues: a single atom • 2 or more atoms • tropism of touch • tropism of light • tropism of water • a chemical formula • tropism of gravity • balance of the body • another word for element • change only in appereance • smaller than an atom itself • Change that Is made Chemically • reaction to stimulus by plants • number after the chemical formula • table that contains all the elements • ...

Chemical Reaction, Metals, and Alloys 2014-04-24

Chemical Reaction, Metals, and Alloys crossword puzzle
Across
  1. starting substance in a chemical reaction.
  2. any metal that can be rolled or pounded into flat sheets.
  3. at temperature way below freezing, some materials lose all resistance to electrical flow.
  4. a substance that is a good conductor of heat and electricity.
  5. the new substance created in a chemical reaction.
  6. mixture of two or more metals and nonmetals.
Down
  1. a solid that forms in solution due to a chemical reaction.
  2. something that can help prevent the movement of heat, energy, and even sound.
  3. the word that describes metals that let electricity flow through them easily
  4. the gradual "eating away" of a metal because it reacts chemically to form a compound that weakens it.
  5. what we call it when elements react easily.
  6. any metal that can be drawn out into strands of wire.
  7. reaction when a substance changes into a new substances.

13 Clues: starting substance in a chemical reaction. • what we call it when elements react easily. • mixture of two or more metals and nonmetals. • the new substance created in a chemical reaction. • any metal that can be drawn out into strands of wire. • reaction when a substance changes into a new substances. • any metal that can be rolled or pounded into flat sheets. • ...

Wyatt Damaske Ch. 13 2019-03-01

Wyatt Damaske Ch. 13 crossword puzzle
Across
  1. A reaction between an acid and a base.
  2. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.
  3. Description of a chemical reaction in which there is a net release of energy.
  4. A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right.
  5. Description of a chemical reaction in which there is a net absorption of energy.
Down
  1. The process by which a reactant loses one or more electrons.
  2. A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.
  3. The minimum energy required in order for a chemical reaction to proceed.
  4. The reacting substances in a chemical reaction.
  5. The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.

10 Clues: A reaction between an acid and a base. • The reacting substances in a chemical reaction. • The process by which a reactant loses one or more electrons. • The minimum energy required in order for a chemical reaction to proceed. • Description of a chemical reaction in which there is a net release of energy. • ...

Science Study Guide 2025-12-08

Science Study Guide crossword puzzle
Across
  1. giving a piece of paper, how can you cause a chemical change
  2. one black Atom + 2 white Atoms equals what
  3. what are 2 other pieces of evidence that supports the question above
  4. make a claim about whether it's stupid though undergoes a chemical reaction during burning
  5. a combustion reaction occurs between one molecule of methane (CH4) and two molecules of oxygen (O2) how many atoms of carbon hydrogen oxygen make up the products for this combustion reaction
  6. How could you show the law of conservation of mass
Down
  1. which of the following is an example of a chemical change ( bending a pop can, evaporating of milk, melting wax, burning paper)
  2. What is the law of conservation of mass
  3. when a substance undergoes a chemical change, it's identity does not change (true, or false)
  4. which of the following is an example of a chemical reaction ( lighting a match, dissolving salt underwater, freezing water, breaking a glass)
  5. list two signs that a chemical change has occur
  6. an example of a chemical change is ( a magnet sticking to the refrigerator, dew disappearing from the grass, mashing potatoes, frying a hamburger)
  7. a change in color is evidence of a _____ change

13 Clues: What is the law of conservation of mass • one black Atom + 2 white Atoms equals what • list two signs that a chemical change has occur • a change in color is evidence of a _____ change • How could you show the law of conservation of mass • giving a piece of paper, how can you cause a chemical change • ...

Formula 1 Crossword 2024-05-22

Formula 1 Crossword crossword puzzle
Across
  1. During an exothermic reaction, the temperature..
  2. The unit energy is measured in
  3. The unit for distance
  4. The unit for time
  5. How fuels are extracted from crude oil
  6. The force that slows a car down
  7. A chemical reaction that absorbs energy to the surroundings
  8. During an endothermic reaction, the temperature...
Down
  1. A toxic gas produced from incomplete combustion
  2. A chemical reaction that releases energy to the surroundings
  3. When a fuel reacts with oxygen
  4. A type of combustion with not enough oxygen
  5. A finite resource found in rocks

13 Clues: The unit for time • The unit for distance • The unit energy is measured in • When a fuel reacts with oxygen • The force that slows a car down • A finite resource found in rocks • How fuels are extracted from crude oil • A type of combustion with not enough oxygen • A toxic gas produced from incomplete combustion • During an exothermic reaction, the temperature.. • ...

Christian's crossword 2016-06-15

Christian's crossword crossword puzzle
Across
  1. Theoretical yield\actual yield=____
  2. multi step KFC
  3. these cause a chemical reaction
  4. figured by calculations
  5. 7 and above on the pH scale
  6. the _____ of a chemical reaction
  7. atomic mass equals the ____
  8. KFC
  9. done by the experiment
Down
  1. a+b=ab
  2. replacement/ab+c=ac+b
  3. reactions left over
  4. limits the amount of results that can be formed
  5. replacement/ab+cd=ad+bc
  6. 7 and below on the pH scale
  7. coefficients also show this
  8. fuel+02=H2O+CO2
  9. ab=a+b

18 Clues: KFC • a+b=ab • ab=a+b • multi step KFC • fuel+02=H2O+CO2 • reactions left over • replacement/ab+c=ac+b • done by the experiment • replacement/ab+cd=ad+bc • figured by calculations • 7 and below on the pH scale • coefficients also show this • 7 and above on the pH scale • atomic mass equals the ____ • these cause a chemical reaction • the _____ of a chemical reaction • ...

Jason Babatido 2022-03-08

Jason Babatido crossword puzzle
Across
  1. relation between amounts between subsa
  2. mass of one mole of a substance
  3. maximum possible mass of a product that can be made in a chemical reaction
  4. mass of a product that was obtained out of the maximum possible mass
  5. reaction between substances that results in the production of new substances
  6. the results of a chemical reaction between substances
Down
  1. study of ratios within chemical reactions
  2. symbolic representation of a chemical reaction in the form of symbols
  3. 6.02x10^23 chemical untis of a substance
  4. the reactant that limits how much of a product that can be made

10 Clues: mass of one mole of a substance • relation between amounts between subsa • 6.02x10^23 chemical untis of a substance • study of ratios within chemical reactions • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...

Scie F 2023-12-07

Scie F crossword puzzle
Across
  1. Formula showing the simplest whole-number ratio of elements in a compound
  2. Chemical reaction that releases heat to its surroundings
  3. Type of chemical reaction involving both reduction and oxidation processes
  4. Shell Outermost electron shell of an atom involved in chemical bonding
Down
  1. Organic compound consisting of hydrogen and carbon atoms
  2. Separation technique based on differences in boiling points of substances
  3. Molecules with the same molecular formula but different structures
  4. Process of using electrical energy to drive a non-spontaneous chemical reaction
  5. Solid formed during a chemical reaction in a solution
  6. Amount of solute present in a given amount of solvent or solution

10 Clues: Solid formed during a chemical reaction in a solution • Organic compound consisting of hydrogen and carbon atoms • Chemical reaction that releases heat to its surroundings • Amount of solute present in a given amount of solvent or solution • Molecules with the same molecular formula but different structures • ...

Thermodynamics Part 2 - Entropy and Free Energy 2022-03-28

Thermodynamics Part 2 - Entropy and Free Energy crossword puzzle
Across
  1. anything that increases the rate of a chemical reaction, does not require any permanent chemical change to itself
  2. conditions that are atypical, not at the regular conditions for a chemical process, when like this Q must be found to find ΔG
  3. a thermodynamic process where the temperature is constant @0
  4. of a reaction or process where heat is absorbed or used
  5. (of formation) - enthalpy changes when a substance is formed from its elements under defined standard conditions
  6. in thermodynamics, ΔG equals the maximum useful work that can be done by the system on its surroundings in a spontaneous process occurring at a constant temperature and pressure
  7. represented by Q for a system that is not at equilibrium determines if there will be excess reactants or products in relativity to each other
Down
  1. used when determining the value of Q, the solutes are expressed as their concentrations in _____ (term)
  2. K, the value of a chemical’s reaction quotient at chemical equilibrium
  3. of a reaction or process where heat is released
  4. (of formation) - a substance is a free-energy change for its formation from its elements under standard conditions (ΔGf°)
  5. a “new” state function, shown in a formula where G=H-TS
  6. is sometimes defined as a degree of disorder or randomness in a system
  7. the regular conditions required for a chemical reaction, relative to each chemical and state of matter at times
  8. something that cannot be determined by thermodynamics, determinant on the presence of a catalyst, temperature, and pressures, also known as the speed, it is the __ at which the process occurs

15 Clues: of a reaction or process where heat is released • a “new” state function, shown in a formula where G=H-TS • of a reaction or process where heat is absorbed or used • a thermodynamic process where the temperature is constant @0 • K, the value of a chemical’s reaction quotient at chemical equilibrium • ...

Test 2 Vocab Review 2022-11-01

Test 2 Vocab Review crossword puzzle
Across
  1. This is at least two atoms bonded (connected) together
  2. This is the spot on an enzyme where the substrate connects to the enzyme
  3. These are molecules that can be bonded to other identical molecules to form a polymer; Think of these as building blocks to make a larger structure, like legos
  4. These are proteins that act as catalysts for your body, reducing how much energy is needed to finish chemical reactions
  5. This is where a protein is put in conditions that cause it to break down, turning its tertiary structure back into a primary structure, which is useless
  6. These are molecules that contain a very large number of atoms and are often central to life’s complicated processes
Down
  1. These are substances made up of only one type of atom
  2. This is a physical object or substance that takes up physical space and has mass
  3. This is a process where molecules get rearranged
  4. These are substances that have molecules made up mostly, if not entirely, of a large number of smaller molecules bonded together
  5. This is the amount of energy needed for a chemical reaction to “proceed to completion”
  6. This is an ingredient for a chemical reaction
  7. These are the reactants for a chemical reaction when enzymes are involved; An enzyme will take the substrate and put it into a position ideal for the chemical reaction to occur
  8. This is a substance formed from a chemical reaction
  9. This is the smallest unit of matter, which makes up every piece of matter in the universe

15 Clues: This is an ingredient for a chemical reaction • This is a process where molecules get rearranged • This is a substance formed from a chemical reaction • These are substances made up of only one type of atom • This is at least two atoms bonded (connected) together • This is the spot on an enzyme where the substrate connects to the enzyme • ...

What To Know? 2017-02-22

What To Know? crossword puzzle
Across
  1. is a property of a physical body.
  2. is a molecule with the same molecular formula as another molecule, but with a different chemical structure.
  3. is an electron that is associated with an atom, and that can participate in the formation of a chemical bond.
  4. A substance that can make a chemical reaction faster but which is not actually needed to produce the reaction nor is used in the reaction.
  5. A liquid with a pH greater than seven.
  6. is a lasting attraction between atoms that enables the formation of chemical compounds.
  7. when a liquid has dissolved as much of a substance as it can.
  8. A combination of elements into a more complex molecule.
  9. A liquid with a pH less than seven.
Down
  1. considered one of the most outstanding figures in the history of medicine.
  2. is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configurations, and recurring chemical properties.
  3. are the basic units of matter and the defining structure of elements.
  4. was an ancient Greek philosopher and scientist.
  5. The amount of a substance dissolved in a liquid.
  6. bonds form when one atom gives up one or more electrons to another atom.
  7. also called a molecular bond; is a chemical bond that involves the sharing of electron pairs between atoms.
  8. is a branch of physical science that studies the composition, structure, properties and change of matter.
  9. A measure of the kinetic energy within a system of particles.
  10. The smallest piece of an atom that can exist in a free state.
  11. is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions.

20 Clues: is a property of a physical body. • A liquid with a pH less than seven. • A liquid with a pH greater than seven. • was an ancient Greek philosopher and scientist. • The amount of a substance dissolved in a liquid. • A combination of elements into a more complex molecule. • A measure of the kinetic energy within a system of particles. • ...

Chemistry 2025-12-18

Chemistry crossword puzzle
Across
  1. Law that matter is not created or destroyed
  2. Reaction combining substances.
  3. Shiny element that conducts electricity.
  4. A solid that forms when two liquids react
  5. Physically combined substances.
  6. Region where electrons are found.
  7. Homogeneous mixture.
  8. Outer shell electrons.
  9. Symbolic representation of reaction.
  10. Atom with different neutron count.
  11. Substance formed in a reaction.
  12. Reaction with oxygen (burning).
  13. Basic unit of a chemical element.
  14. Bond between charged ions.
Down
  1. Positively charged particle.
  2. Number in front of a formula.
  3. Neutral particle in the nucleus.
  4. Reaction breaking down compounds.
  5. Reaction that releases heat.
  6. Starting substance in a reaction.
  7. Negatively charged particle.
  8. Small number for atom count.
  9. Bond where electrons are shared.
  10. Dense center of an atom.
  11. Speeds up reaction without being used.
  12. Atoms bonded together.
  13. Reaction that absorbs heat.
  14. Substance that cannot be broken down.
  15. Substance of two or more elements.
  16. Charged atom or molecule.
  17. Force holding atoms together.

31 Clues: Homogeneous mixture. • Outer shell electrons. • Atoms bonded together. • Dense center of an atom. • Charged atom or molecule. • Bond between charged ions. • Reaction that absorbs heat. • Positively charged particle. • Reaction that releases heat. • Negatively charged particle. • Small number for atom count. • Number in front of a formula. • Force holding atoms together. • ...

Chemisty 2023-10-29

Chemisty crossword puzzle
Across
  1. reaction: he processes by which chemicals interact to form new chemicals with different compositions
  2. The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
  3. a slow chemical reaction between metals and oxygen to produce a metal oxide
  4. the smallest particle of a chemical element that can exist.
  5. Bonding the condition of the system at a given time
  6. a chemical reaction with a Hydrocarbon and Oxygen
  7. the degree of compactness of a substance.
  8. point: the temperature at which a given solid will melt.
  9. a substance made by mixing other substances together.
  10. the quality of being pliable and flexible
  11. A hard solid that normally melts at high temperatures.
  12. the formation of a bond between two or more atoms,
  13. You can flatten it with a hammer into a thin sheet or squish.
  14. A substance where atoms are spread out
  15. a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts.
Down
  1. it allows electricity to flow through it
  2. It is shiny or dull
  3. two or more elements that have chemically joined together.
  4. occur when bonds are broken and/or formed between molecules or atoms
  5. A hard substance with compact atoms
  6. a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances.
  7. a group of atoms bonded together
  8. an essential or characteristic part of something abstract.
  9. the quality or state of being strong
  10. How something may look
  11. anything that takes up space and can be weighed
  12. occurs in the cells of all living organisms. It reacts oxygen and sugar to produce carbon dioxide and water
  13. A substance where atoms are less compact
  14. a substance formed from the combination of two or more metals
  15. the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions,

30 Clues: It is shiny or dull • How something may look • a group of atoms bonded together • A hard substance with compact atoms • the quality or state of being strong • A substance where atoms are spread out • it allows electricity to flow through it • A substance where atoms are less compact • the degree of compactness of a substance. • the quality of being pliable and flexible • ...

Chemistry Crossword 2024-01-27

Chemistry Crossword crossword puzzle
Across
  1. substance that gets dissolved in a solvent
  2. particle with a positive electric charge
  3. chemical reaction that occurs between an acid and a base
  4. a row (left to right) of the periodic table
  5. naturally occurring members of group 18 of the periodic table
  6. measure of how close a measured value is to its true value
  7. reaction in which one element is substituted for another element in a compound
  8. metal in Group I of the periodic table
  9. atom's outermost electrons
  10. attraction that occurs between ions with opposite charges
  11. any of the interactions that account for the association of atoms
  12. substance made up of two or more different chemical elements combined in a fixed ratio
  13. particle with negative charge
  14. liquid that dissolves a solute in solution
  15. measurements are reported with more significant figures
  16. chemical reaction that always uses hydrocarbons
  17. Avogadro's number (6.02 x 1023) of anything
  18. creation of one or more compounds through the combination of elements
Down
  1. molecule made up of more than two atoms
  2. tendency of an atom or radical to attract electrons in the formation of an ionic bond
  3. particle with positive charge
  4. breakdown of compound(s) into multiple elements and/or compounds
  5. arrangement of parts or elements
  6. molecule made up of two atoms
  7. two chemical substances react by exchanging ions to produce two new molecules
  8. a group of elements sharing similar properties
  9. substance that cannot be decomposed into simpler substances by ordinary chemical processes
  10. the study of heat flow
  11. involves the sharing of electrons
  12. using electricity to break the bonds in a compound to break it apart
  13. not resembling shiny, malleable, conductive elements
  14. amount of matter in a substance
  15. something made as a result of a chemical reaction
  16. particle with a negative electric charge

34 Clues: the study of heat flow • atom's outermost electrons • particle with positive charge • molecule made up of two atoms • particle with negative charge • amount of matter in a substance • arrangement of parts or elements • involves the sharing of electrons • metal in Group I of the periodic table • molecule made up of more than two atoms • particle with a positive electric charge • ...

Physical Science 7.1 and 7.2 Vocab 2021-06-01

Physical Science 7.1 and 7.2 Vocab crossword puzzle
Across
  1. A chemical in which energy is released to the surroundings as heat
  2. The energy released when a chemical compound reacts to produce new compounds
  3. A chemical reaction that requires energy input
  4. A substance that forms in a chemical reaction
  5. A compound always contains the same elements in the same proportion. This is true regardless of how the compound forms or how much it forms.
  6. The relative number of moles of the substances required to produce a given amount of product in a chemical reaction
Down
  1. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  2. A number that shows the relative amount of a substance in a reaction
  3. A substance of molecule that participates in a chemical reaction

9 Clues: A substance that forms in a chemical reaction • A chemical reaction that requires energy input • A substance of molecule that participates in a chemical reaction • A chemical in which energy is released to the surroundings as heat • A number that shows the relative amount of a substance in a reaction • ...

Chemistry 2022-01-31

Chemistry crossword puzzle
Across
  1. The measure of how much “stuff” (atoms/molecules) is packed in a unit of volume.
  2. The measure of the amount of matter in a substance.
  3. Combination of two or more atoms bonded together
  4. Single, smallest unit of matter
  5. The conditions in which matter exists (solid, liquid, gas, or plasma).
  6. A physical model that represents molecules and their processes.
  7. Showing a chemical reaction using words rather than symbols to represent the substances.
  8. The substance(s) that are produced by a chemical reaction.
  9. A material with the same atoms or molecules all the way through (Pure)
Down
  1. A characteristic that never changes
  2. The ability of a substance to dissolve and mix in evenly with another substance.
  3. The temperature at which a substance changes state of matter from a solid to a liquid.
  4. The total amount of three dimensional space taken up by a solid, liquid, or gas.
  5. A property that describes how easily or difficult a substance can be scratched.
  6. Two or more different atoms or molecules, or not the same all the way through (Not pure)
  7. An expression of a chemical reaction using numbers and symbols of the type of atoms present.
  8. The starting substance(s), that react together, in a chemical reaction.

17 Clues: Single, smallest unit of matter • A characteristic that never changes • Combination of two or more atoms bonded together • The measure of the amount of matter in a substance. • The substance(s) that are produced by a chemical reaction. • A physical model that represents molecules and their processes. • ...

Chemistry 1 2026-01-08

Chemistry 1 crossword puzzle
Across
  1. Substance made from atoms of two or more elements that are chemically bonded such as water (H2O) or salt (NaCI)
  2. The smallest unit of an element that maintains the properties of that element - cannot be separated by any physical or chemical process
  3. A process that absorbs energy from the surroundings
  4. Processes that releases energy into the surroundings
  5. A measure of the amount of space that is occupied (A three dimensional value such as cm^3 ormL)
  6. A pure substance made of only one kind of atom, such as carbon
  7. They can be hammered or rolled into thin sheets
  8. Anything with mass that occupies space
  9. Substance Matter that has a definite composition (element symbol or chemical formula)
  10. of Conservation of Mass Mass cannot be destroyed or created. It remains the same during a chemical reaction
Down
  1. Substances that are formed during the reaction
  2. energy The energy possessed by an object due to its position, composition, or condition
  3. Beginning substances that start a reaction
  4. Can be drawn into a fine wire
  5. Property The ability of a substance to undergo a specific chemical change
  6. A measure of the amount of matter
  7. The capacity to do work or transfer heat

17 Clues: Can be drawn into a fine wire • A measure of the amount of matter • Anything with mass that occupies space • The capacity to do work or transfer heat • Beginning substances that start a reaction • Substances that are formed during the reaction • They can be hammered or rolled into thin sheets • A process that absorbs energy from the surroundings • ...

Chemical Reaction Crossword 2020-03-20

Chemical Reaction Crossword crossword puzzle
Across
  1. The resulting elements/compounds of the reaction
  2. AB -> A + B
  3. A + BC -> AC + B
  4. An equation made to represent a reaction
  5. A + B -> AB
  6. CxHy + O2 -> CO2 + H2O
Down
  1. AB + CD -> AD + BC
  2. A list of elements organized by reactivity
  3. The starting elements/compounds in a chemical equation

9 Clues: AB -> A + B • A + B -> AB • A + BC -> AC + B • AB + CD -> AD + BC • CxHy + O2 -> CO2 + H2O • An equation made to represent a reaction • A list of elements organized by reactivity • The resulting elements/compounds of the reaction • The starting elements/compounds in a chemical equation

Chemical reaction starter 2021-05-14

Chemical reaction starter crossword puzzle
Across
  1. a change that can not be undone or reversed
  2. toxic gas formed during incomplete combustion
  3. what you are starting with at the beginning of your reaction
  4. the smallest particle of an element
Down
  1. change in which atoms are rearranged to form new substances
  2. the simplest substances made up of only one type of atom
  3. solution that turns cloudy when it reacts with carbon dioxide
  4. what you are making in your chemical reaction
  5. type of combustion when there is plenty of oxygen

9 Clues: the smallest particle of an element • a change that can not be undone or reversed • what you are making in your chemical reaction • toxic gas formed during incomplete combustion • type of combustion when there is plenty of oxygen • the simplest substances made up of only one type of atom • change in which atoms are rearranged to form new substances • ...

Chemical Reactions 2025-02-13

Chemical Reactions crossword puzzle
Across
  1. ending substances created from a chemical reaction
  2. large number in front of a chemical formula that indicates how many molecules are present
  3. chemical symbols and numbers that represent the amount of specific elements found in a compound
  4. a table created that represents all of the known elements and their relationship to each other
  5. small number below and behind an element's chemical symbol that indicates how many atoms of that element are present
  6. substance made of 2 or more elements chemically combined
Down
  1. one or two letter abbreviations used to represent elements found on the Periodic Table of Elements
  2. smallest unit of matter
  3. chemical formulas and numbers that represent what occurred in a chemical reaction
  4. 2 or more atoms chemically bonded together
  5. beginning substances in a chemical reaction
  6. pure substance made of only 1 type of atom

12 Clues: smallest unit of matter • 2 or more atoms chemically bonded together • pure substance made of only 1 type of atom • beginning substances in a chemical reaction • ending substances created from a chemical reaction • substance made of 2 or more elements chemically combined • chemical formulas and numbers that represent what occurred in a chemical reaction • ...

Chemistry crossword 2015-12-01

Chemistry crossword crossword puzzle
Across
  1. gases- group 18 elements in the periodic table;the most stable and unreactive elements
  2. system- an experiment in which one or more products of a chemical reaction can escape
  3. shiny, malleable, ductile element that conducts electricity
  4. pure substance that cannot be broken down into other substances; substance made up of only one type of atom
  5. a substance with a sour taste.
  6. mass- mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom
  7. change of state from a solid to a liquid
  8. mass of a substance that can dissolve in a given amount of solvent to form a saturated solution at a given temperature
  9. such a substance, as dissolved sugar or salt in solution.
  10. to make or form by combining parts, elements.
  11. element that has both metallic and nonmetallic properties
  12. system- an experiment in which all reactants and all products of a chemical reaction are accounted for
  13. number- number of protons in the nucleus of one atom of an element
Down
  1. one of the electrically charged particles formed in a gas by electric discharge or the like.
  2. elements in a family all have similar chemical properties
  3. any of various proteins, as pepsin, originating from living cells and capable of producing certain chemical changes in organic substances by catalytic action, as in digestion.
  4. anything extremely small; a minute quantity
  5. metals- any of a group of soft, white, low-density, low-melting, highly reactive metallic elements
  6. any substance that undergoes a chemical change in a given reaction.
  7. the act or process of burning.
  8. a substance that causes or accelerates a chemical reaction without itself being affected.
  9. any of the electronegative elements, fluorine, chlorine, iodine, bromine, and astatine, that form binary salts by direct union with metals.
  10. invisible negatively charged particle that orbits the nucleus of an atom
  11. mass per unit volume.
  12. compound pure substance formed when at least one metal and one non-metal combine

25 Clues: mass per unit volume. • a substance with a sour taste. • the act or process of burning. • change of state from a solid to a liquid • anything extremely small; a minute quantity • to make or form by combining parts, elements. • elements in a family all have similar chemical properties • such a substance, as dissolved sugar or salt in solution. • ...

Chemical Reactions 2024-09-23

Chemical Reactions crossword puzzle
Across
  1. A scale used to measure how acidic or basic a solution is.
  2. The new substances formed as a result of a chemical reaction.
  3. A chemical reaction in which an acid and a base react to form water and a salt, typically resulting in a change in pH.
  4. The substances present before a chemical reaction occurs.
  5. test for oxygen, relights in the presence of oxygen
  6. Elements that are typically shiny, malleable, conductive, and can lose electrons to form positive ions.
  7. A substance that changes color to indicate whether a solution is acidic or basic.
  8. The part of chemistry that deals with the calculation of reactants and products in chemical reactions.
  9. A substance that increases the concentration of hydroxide ions (OH⁻) in a solution and has a pH above 7.
  10. The substance in which the solute is dissolved to form a solution.
Down
  1. A scientific model used to explain the structure and behavior of matter in terms of particles (atoms or molecules).
  2. A test for hydrogen gas, where a burning splint produces a popping sound when exposed to the gas.
  3. A solid that forms and settles out of a liquid mixture as the result of a chemical reaction.
  4. The amount of a substance (solute) present in a given volume of solution.
  5. A substance that is dissolved in a solution.
  6. A test for carbon dioxide, where CO₂ is bubbled through limewater (calcium hydroxide), causing it to turn cloudy.
  7. A substance that increases the concentration of hydrogen ions (H⁺) in a solution and has a pH below 7.
  8. Elements that are not shiny, brittle, poor conductors, and tend to gain electrons to form negative ions.
  9. Mixtures of two or more metals, or a metal and another element, which have different physical and chemical properties compared to the individual substances.
  10. A process that involves the transformation of reactants into products, often indicated by changes like gas evolution, precipitate formation, or color change.

20 Clues: A substance that is dissolved in a solution. • test for oxygen, relights in the presence of oxygen • The substances present before a chemical reaction occurs. • A scale used to measure how acidic or basic a solution is. • The new substances formed as a result of a chemical reaction. • The substance in which the solute is dissolved to form a solution. • ...

Chemistry - review of chapters 1 and 2 2023-10-15

Chemistry - review of chapters 1 and 2 crossword puzzle
Across
  1. Hydrogen, Boron, and silver are examples of these
  2. A mixture in which individual components cannot be easily picked out
  3. The smallest particle of mass that defines a chemical element
  4. One of the three states of matter
  5. atomic number is 2
  6. atomic number is 7
  7. The substances present at the beginning of a chemical reaction
  8. The first step in the scientific method
  9. The type of physical property that depends how much of it you have
  10. Atomic number is 4
  11. two or more elements bonded together
  12. the amount of space a thing takes up
  13. The first element in the periodic table
  14. It makes up everything
  15. A chemical ________ changes the chemical structure of at least one of the reactants
  16. A subatomic particle that has no charge
  17. The type of mixture that a salad is
  18. The type of science that chemistry is
  19. A positively charged subatomic particle
  20. The place where protons and neutrons can be found
  21. One of the three states of matter
Down
  1. The type of physical property that doesn't depend on the quantity
  2. The state stare of water
  3. The solid that forms sometimes when two liquids are combined chemically
  4. the amount of matter a thing has
  5. atomic number is 5
  6. The science that deals with living things or things necessary for life
  7. atomic number is 6
  8. Atomic number is 3
  9. atomic number is 8
  10. This is produced when ice is heated past 32 degrees Celsius
  11. The central science
  12. A negatively charged subatomic particle
  13. The production of a gas is one of the four ____ to a chemical reaction
  14. The substances present after a chemical reaction has taken place
  15. The type of chemistry that does not involve carbon or living things or things that were living
  16. Another word for a homogeneous mixture
  17. An educated guess that you make after observing things and before experimenting
  18. One of the three states of matter

39 Clues: atomic number is 5 • atomic number is 6 • atomic number is 2 • Atomic number is 3 • atomic number is 8 • atomic number is 7 • Atomic number is 4 • The central science • It makes up everything • The state stare of water • the amount of matter a thing has • One of the three states of matter • One of the three states of matter • One of the three states of matter • ...

Enzymes crossword 2023-04-20

Enzymes crossword crossword puzzle
Across
  1. enzyme which breaks down proteins and peptides.
  2. (2 words - no space)the match of the convex surface and concave surface of the proteins
  3. process modifying the molecular structure of a protein that involves the breaking of many of the weak bonds within a protein molecule
  4. substance that takes part in and undergoes change during a reaction
  5. enzyme that changes complex sugars (starches) into simple sugars during digestion
  6. digestive enzyme in the stomach, which breaks down proteins into polypeptides
  7. enzyme that catalyzes the hydrolysis of the disaccharide maltose to the simple sugar glucose
  8. refers to the pH , temperature resulting in maximal activity of a particular enzyme
Down
  1. the substance on which an enzyme can act
  2. enzymes degrade cellulose to glucose
  3. substance that is formed as the result of a chemical reaction
  4. (2 words - no space) the part of the enzyme where substrate molecules bind and a chemical reaction takes place
  5. proteins that function as biological catalysts and are involved un all metabolic reaction
  6. enzyme that catalyses the breakdown of fats to fatty acids
  7. factor that results in maximal activity when it’s higher the result will come faster
  8. (2 words - no space) molecules that combine to form proteins, that are building blocks of proteins
  9. substance that increase the rate of a chemical reaction and is not changed by the reaction

17 Clues: enzymes degrade cellulose to glucose • the substance on which an enzyme can act • enzyme which breaks down proteins and peptides. • enzyme that catalyses the breakdown of fats to fatty acids • substance that is formed as the result of a chemical reaction • substance that takes part in and undergoes change during a reaction • ...

Type of chemical reaction 2024-05-07

Type of chemical reaction crossword puzzle
Across
  1. Reaction which produces heat
  2. reactions in which ions are exchanged between two reactants forming new compounds
  3. reaction any reaction in which an acid reacts with a base to form salt and water by the exchange of ions
  4. addition of oxygen or non metallic element or removal of hydrogen or metallic element from a compound
  5. it is the chemical reaction in which a more reactive element displaces a less reactive element displaces a less reactive element to form a compound
  6. reaction in which one compound decomposes into two or more compounds and elements
  7. reactions in which a compound decomposes due to sunlight
Down
  1. decomposition of a substance on heating
  2. it is the reaction in which a compound decomposes to form a into simpler compounds in the presence of electricity
  3. it is a reaction in which heat is absorbed
  4. it is a reaction in which two or more reactants combined to form compound
  5. reaction in which precipitate is formed by the mixing of aqueous solution of two salts
  6. it is the reaction in which both oxidation and reduction takes place simultaneously

13 Clues: Reaction which produces heat • decomposition of a substance on heating • it is a reaction in which heat is absorbed • reactions in which a compound decomposes due to sunlight • it is a reaction in which two or more reactants combined to form compound • reaction in which one compound decomposes into two or more compounds and elements • ...

Science Vocabulary 2025-03-08

Science Vocabulary crossword puzzle
Across
  1. Respiration: Chemical reaction where organisms use oxygen and food molecules to create CO2, H20 and energy
  2. Substance(s) at the beginning of the chemical reaction. (INPUT)
  3. Substance(s) produced by a chemical reaction. (OUTPUT)
  4. a type of sugar
  5. a chemical reaction that occurs between sunlight, carbon dioxide, and water in plant cells and makes food molecules and oxygen
Down
  1. a unit of measuring energy in food.
  2. the ability to do something.
  3. of Matter: Conservation of matter Matter cannot be created or destroyed, it can only change.
  4. Reaction: A process where a set of substances undergo a chemical change to form a different substance

9 Clues: a type of sugar • the ability to do something. • a unit of measuring energy in food. • Substance(s) produced by a chemical reaction. (OUTPUT) • Substance(s) at the beginning of the chemical reaction. (INPUT) • of Matter: Conservation of matter Matter cannot be created or destroyed, it can only change. • ...

Chemical Reactions 2024-09-19

Chemical Reactions crossword puzzle
Across
  1. Sates that energy cannot be created or destroyed, only changes form
  2. Uses chemical symbols and numbers to represent a given substance
  3. The process in which atoms are rearranged to produce new substances
Down
  1. States that matter is neither created nor destroyed
  2. A chemical reaction in which energy is released to the surroundings
  3. A chemical reaction that requires an input of energy
  4. Substances that participate in a chemical reaction, their chemical formula is on the left
  5. Substances formed in a reaction, their chemical formulas are on the right
  6. An expression that uses symbols to show the relationship between the starting substances and the substances that are produced by chemical reaction

9 Clues: States that matter is neither created nor destroyed • A chemical reaction that requires an input of energy • Uses chemical symbols and numbers to represent a given substance • A chemical reaction in which energy is released to the surroundings • Sates that energy cannot be created or destroyed, only changes form • ...

Science Topic 2026-02-11

Science Topic crossword puzzle
Across
  1. – a mixture where one substance dissolves in another.
  2. – a process where microorganisms break down sugar to produce alcohol, gas, or acid.
  3. – starting substances in a chemical reaction.
  4. – the force applied on a surface or area.
  5. – a unit used to measure the amount of a substance in chemistry.
  6. – the amount of space something occupies.
  7. – the gradual change of organisms over time.
  8. – a unit for measuring temperature.
  9. – the gradual destruction of materials (like rusting).
  10. – proteins that speed up chemical reactions in living things.
  11. – a substance that speeds up a chemical reaction.
  12. – how hot or cold something is.
  13. – how something looks.
  14. – the release of light, gas, or particles.
  15. – a device used to inject or withdraw fluids.
  16. – a reddish metal used in wires and coins.
  17. Law – scientific rules that explain how gases behave.
  18. – a reaction where two or more substances form one product.
  19. – molecules found in living organisms (like DNA, proteins).
  20. – groups of atoms bonded together.
Down
  1. – numbers placed in front of formulas in equations to balance them.
  2. – becomes larger or greater.
  3. – large molecules made of repeating units (like plastics).
  4. – substances formed after a chemical reaction.
  5. – nutrients that build and repair body tissues.
  6. – a gas needed for breathing and burning.
  7. – the layer of gases surrounding the Earth.
  8. – anything that has mass and occupies space.
  9. – substances used in or produced by chemical reactions.
  10. – a type of matter with uniform properties.
  11. – making sure both sides of a chemical equation have equal atoms.
  12. – the loss of water from a substance or body.
  13. – the smallest unit of an element.
  14. – a safety device in vehicles that inflates during a crash.
  15. – the process of burning with oxygen.
  16. – having no color.
  17. – a state of matter with no fixed shape or volume.
  18. – rearranging or moving parts to make something balanced.
  19. – the rate at which velocity changes.
  20. – substances with a specific composition and properties.

40 Clues: – having no color. • – how something looks. • – becomes larger or greater. • – how hot or cold something is. • – the smallest unit of an element. • – groups of atoms bonded together. • – a unit for measuring temperature. • – the process of burning with oxygen. • – the rate at which velocity changes. • – the force applied on a surface or area. • ...

Chemistry Vocabulary 2018-06-01

Chemistry Vocabulary crossword puzzle
Across
  1. formed from the attraction between mobile electrons and fixed, positively charged metallic atoms
  2. a chemical solution containing the maximum concentration of a solute dissolved in the solvent
  3. a well-established explanation for scientific data
  4. the percent by mass of each element present in a compound
  5. the measure of an atom's ion in a crystal lattice
  6. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red
  7. outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond
  8. a set of chemical symbols showing the elements present in a compound and their relative proportions
  9. chemical element is a measure of the size of its atoms
Down
  1. the property of a solid, liquid or gaseous chemical substance called solute
  2. experimental value is your calculated value, and the theoretical value is your known value
  3. relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers
  4. the ratio between the amounts in moles of any two compounds involved in a chemical reaction
  5. a substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means
  6. a reaction where two or more elements or compounds combine to form a single compound
  7. the unit of amount in chemistry

16 Clues: the unit of amount in chemistry • the measure of an atom's ion in a crystal lattice • a well-established explanation for scientific data • chemical element is a measure of the size of its atoms • the percent by mass of each element present in a compound • the property of a solid, liquid or gaseous chemical substance called solute • ...

Unit 1 Vocab 2025-09-19

Unit 1 Vocab crossword puzzle
Across
  1. A new substance with unique chemical and physical properties formed when two or more elements are chemically bonded
  2. The smallest particle of an element; made of electrons, protons, and neutrons
  3. The simplest unit of a chemical compound that can exist; formed when two or more atoms join together chemically
  4. A substance that takes part in and undergoes change during a chemical reaction
  5. Has mass and takes up space and occurs as elements, compounds, and mixtures
  6. A new substance with unique chemical and physical properties formed when two or more elements are chemically bonded during a chemical reaction
  7. A characteristic that can be observed or measured without changing the substance
  8. The ability to be dissolved, especially in water.
  9. An insoluble solid formed from a chemical reaction involving a liquid
  10. Materials made from one or more natural substances that undergo a chemical process
  11. A substance produced during a chemical reaction
Down
  1. A characteristic that can be observed or measured only when atoms rearrange during a chemical change
  2. The process by which one or more substances change to produce one or more different substances
  3. The ability of a substance to burn or ignite easily when exposed to a flame or heat
  4. The tendency or capacity of a substance to undergo chemical transformations
  5. A single substance, either an element or compound, with definite composition and properties
  6. A fundamental physical property that describes how much mass is contained in a given amount of space (volume)

17 Clues: A substance produced during a chemical reaction • The ability to be dissolved, especially in water. • An insoluble solid formed from a chemical reaction involving a liquid • Has mass and takes up space and occurs as elements, compounds, and mixtures • The tendency or capacity of a substance to undergo chemical transformations • ...

Autumn Roe chapter 13 2017-10-04

Autumn Roe chapter 13 crossword puzzle
Across
  1. A substance that donates hydrogen ions
  2. a representation of chemical reaction in which reactants are written to the left of arrow that points toward the products on the right
  3. The reacing substances in a chemical reaction
  4. A substance that accepts hydrogen ions
  5. Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration
  6. A measure of how quickly the concentration of products in a chemical reaction increases or concentration of reactants decreases
Down
  1. The process by which a reactant gains one or more electrons
  2. A rapid exothermic oxidation-reduction reaction between between a material and molecular oxygen
  3. the minimum energy required in order for a chemical reaction to proceed
  4. The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.
  5. The new materials formed in chemical reaction

11 Clues: A substance that donates hydrogen ions • A substance that accepts hydrogen ions • The reacing substances in a chemical reaction • The new materials formed in chemical reaction • The process by which a reactant gains one or more electrons • the minimum energy required in order for a chemical reaction to proceed • ...

Biomolecules and Enzymes 2020-10-22

Biomolecules and Enzymes crossword puzzle
Across
  1. A catalyst that brings about a specific biochemical reaction.
  2. a molecule composed of amino acids joined together by peptide bonds
  3. is a fat or fatty acid in which there is one or more double bond in the fatty acid chain
  4. elements or compounds that enter into a chemical reaction
  5. elements or compounds produced by chemical reactions
  6. They are polymers made up of many monosaccharides
  7. sugar (a carbohydrate) composed of two monosaccharides
  8. important component of lipids
Down
  1. consists of three molecules of fatty acid combined with a molecule of the glycerol
  2. The basic building block of nucleic acids such as DNA and RNA. An organic compound made up of a nitrogen base, sugar, and phosphate group.
  3. a single atom or molecule which is able to join with other monomers to make new substances called polymers.
  4. the simplest form of carbohydrates. They include sugars such as glucose and fructose
  5. reactant of an enzyme catalyzed reaction
  6. process modifying the molecular structure of a protein.
  7. process that changes, transforms, one set of chemicals into another set of chemicals
  8. part of the enzyme where the substrate binds is called the active site
  9. energy input that is needed for a reaction to begin
  10. molecules that have no double bonds between carbon molecules because they are saturated with hydrogen molecules.
  11. simple organic compound containing both a carboxyl and an amino group. The building blocks for proteins.
  12. substance that speeds up the rate of a chemical reaction

20 Clues: important component of lipids • reactant of an enzyme catalyzed reaction • They are polymers made up of many monosaccharides • energy input that is needed for a reaction to begin • elements or compounds produced by chemical reactions • sugar (a carbohydrate) composed of two monosaccharides • process modifying the molecular structure of a protein. • ...

CHEM GRID 2023-12-13

CHEM GRID crossword puzzle
Across
  1. Heterocyclic compound used for the oxidation of alcohol to form carbonyls.
  2. Double reciprocal plot used in enzyme kinetics.
  3. One of the spectroscopic technique which relies upon the scattering of photons.
  4. Determination of amino acids containing an aromatic nucleus.
  5. Member of s-block, which gives violet or light purple colour flame.
  6. A foul-smelling diamine produced by putrefaction of dead animal tissue.
  7. He is known for his pioneering studies of radioactivity and the atom.
  8. Toxic gas used in the production of insecticide sevin.
  9. He has won two undivided Nobel Prizes, he used quantum mechanics to understand the chemical bonding.
Down
  1. He is known for his work on stereoselective reactions and click chemistry.
  2. Temperature and volume will be directly proportional at constant pressure.
  3. Analytical technique used for separating of mixture of chemical substances into its individual components.
  4. Acetamide when treated with bromine in aqueous solution of KOH methyl amine is produced, with this as the intermediate
  5. It is a reaction in which addition of zinc enolates to aldehydes or ketones to form beta hydroxyesters takes place.
  6. Chemical reaction used for the ortho-formylation of phenols.
  7. Reaction of enol or enolate ion with carbonyl compounds to form beta-hydroxyketone or beta-hydroxyaldehyde.
  8. Geometry of boron trifluoride.
  9. Sulphur containing amino acid.
  10. A dipolar charge separated intermediate species in Wittig reaction.
  11. It is a oxygen insertion reaction, resulting in esters from ketone using peroxyacids.

20 Clues: Geometry of boron trifluoride. • Sulphur containing amino acid. • Double reciprocal plot used in enzyme kinetics. • Toxic gas used in the production of insecticide sevin. • Chemical reaction used for the ortho-formylation of phenols. • Determination of amino acids containing an aromatic nucleus. • Member of s-block, which gives violet or light purple colour flame. • ...

Chemistry Fun 2025-12-17

Chemistry Fun crossword puzzle
Across
  1. A type of bond formed by the transfer of electrons between a metal and a nonmetal.
  2. The group 17 elements that are highly reactive nonmetals.
  3. A substance that speeds up a chemical reaction without being consumed.
  4. Molecules with the same molecular formula but different structural arrangements.
  5. The name for electrons in the outermost shell of an atom.
  6. The emission of light by a substance without combustion or perceptible heat.
  7. The substance in a solution that does the dissolving (usually water).
  8. The process in which an atom loses electrons during a reaction.
  9. A measure of how strongly an atom attracts electrons in a chemical bond.
  10. An insoluble solid that forms and settles out of a liquid mixture.
  11. The process in which an atom gains electrons during a reaction.
Down
  1. The subatomic particle that determines an element's identity.
  2. The SI unit used to measure the amount of a substance (6.022×1023 particles).
  3. A technique used to determine the concentration of an unknown solution.
  4. Atoms of the same element with different numbers of neutrons.
  5. A reaction that absorbs energy from the surroundings.
  6. A type of bond where electrons are shared between two nonmetals.
  7. A reaction that releases energy in the form of heat to the surroundings.
  8. Different physical forms in which an element can exist (e.g., graphite vs. diamond).
  9. The law stating that physical and chemical properties of elements recur in a predictable way.

20 Clues: A reaction that absorbs energy from the surroundings. • The group 17 elements that are highly reactive nonmetals. • The name for electrons in the outermost shell of an atom. • The subatomic particle that determines an element's identity. • Atoms of the same element with different numbers of neutrons. • ...

Science 2021-04-20

Science crossword puzzle
Across
  1. the first design of a creation
  2. Absorbs heat becomes hotter
  3. a reaction that takes place to create a new substance
  4. the state of which matter is in, solid, liquid, gas
  5. The ability to not use certain elements
  6. Solid formed after a liquid reaction
  7. Releases heat, becomes colder
  8. A change in the chemical structure
Down
  1. An open reaction
  2. law that says mass can not be created or destroyed during a reaction
  3. Atoms and molecules moving faster
  4. The needed elements
  5. A closed reaction
  6. the ability to get a toxic substance back
  7. No change in quantities of anything during areaction
  8. end results of a reaction
  9. The breaking down of atoms
  10. Needed to make a reaction

18 Clues: An open reaction • A closed reaction • The needed elements • end results of a reaction • Needed to make a reaction • The breaking down of atoms • Absorbs heat becomes hotter • Releases heat, becomes colder • the first design of a creation • Atoms and molecules moving faster • A change in the chemical structure • Solid formed after a liquid reaction • ...

Chemical Reaction Crossword 2026-02-24

Chemical Reaction Crossword crossword puzzle
Across
  1. When substances form one or more new substances
  2. A soild that forms as a result of a chemical reaction
  3. The arrow symbol that show a reaction has taken place
  4. describes what happens in a chemical reaction
Down
  1. The new substances formed in a chemical reaction
  2. The characteristics of a substance only physically
  3. The substance (or substances) change to a new substance
  4. A substance made of two or more elements
  5. The starting substance in a chemical reaction

9 Clues: A substance made of two or more elements • The starting substance in a chemical reaction • describes what happens in a chemical reaction • When substances form one or more new substances • The new substances formed in a chemical reaction • The characteristics of a substance only physically • A soild that forms as a result of a chemical reaction • ...

Atoms and Energy in Chemical Reactions 2025-12-08

Atoms and Energy in Chemical Reactions crossword puzzle
Across
  1. a scientific law that states that matter cannot be created or destroyed.
  2. are shorthand notations that describe chemical reactions.
  3. For review, it is the end of a chemical reaction
Down
  1. a chemical reaction that absorbs more energy from its surroundings than it releases
  2. a chemical reaction that releases more energy to the surroundings than it absorbs
  3. a full-scale, working model of a design that can be tested as part of the design
  4. For review, this word means hot or heat
  5. The stadium the Chicago Bears play at
  6. For review, this is the beginning/ start of a chemical reaction
  7. is a verbal or mathematical description of a natural phenomenon.
  8. building blocks of matter and can only be seen with a microscpe

11 Clues: The stadium the Chicago Bears play at • For review, this word means hot or heat • For review, it is the end of a chemical reaction • are shorthand notations that describe chemical reactions. • For review, this is the beginning/ start of a chemical reaction • building blocks of matter and can only be seen with a microscpe • ...

Biochemistry 2016-11-08

Biochemistry crossword puzzle
Across
  1. what is broken down by enzyme
  2. monomer for nucleic acids
  3. smallest form of matter
  4. polymer, body function, nuts
  5. speeding up a chemical change
  6. polymer,DNA, RNA
  7. things that speed up reactions
  8. when two things become one
  9. where enzyme and substrate meet
  10. carb that does not hydrolyze
  11. polymer, short term energy, pasta
  12. what is made from reaction
Down
  1. polymer, fast energy
  2. change from complex to simple things
  3. things that change in a reaction
  4. a molecule that can form polymers
  5. when two things come together
  6. monomer for lipids
  7. change from simple to complex things
  8. a bunch of monomers stuck together
  9. energy needed to start a reaction
  10. to alter an enzyme by changing its surroundings
  11. the causing of a chemical change
  12. monomer for proteins

24 Clues: polymer,DNA, RNA • monomer for lipids • polymer, fast energy • monomer for proteins • smallest form of matter • monomer for nucleic acids • when two things become one • what is made from reaction • polymer, body function, nuts • carb that does not hydrolyze • what is broken down by enzyme • when two things come together • speeding up a chemical change • things that speed up reactions • ...

key terms 2023-09-21

key terms crossword puzzle
Across
  1. chemical substance that is present at the start of a chemical reaction
  2. the smallest component of an element having the chemical properties of the element
  3. lasting attraction between atoms or ions
  4. a change of materials into another, new materials
  5. the process of diffusing; the intermingling of molecules in gases and liquids
  6. process of going into solution
  7. substances that react with acids
  8. essential structural component of living cells
  9. a chemical substance formed as a result of a chemical reaction
  10. a thermodynamic quantity representing the amount of energy in a system
  11. the material involved in the change is structurally the same before and after the change
  12. the degree of hotness or coldness of a body or environment
  13. an essential structural component of living cells and source of energy for animals
  14. several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
  15. the simplest structural unit of an element or compound
  16. organic compounds that contain both amino and carboxylic acid
Down
  1. a substance formed by chemical union of two or more elements
  2. fibrous band of scar tissue that binds together
  3. a substance that stops an activity
  4. the intermolecular force that holds together the molecules in a solid or liquid
  5. any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
  6. a substance that initiates or accelerates a chemical reaction without itself being affected
  7. a chemical substance that cannot be broken down into other substances.
  8. white crystalline carbohydrate used as a sweetener and preservative
  9. the capacity of a physical system to do work
  10. characterized by opposite extremes
  11. any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements
  12. that which has mass and occupies space
  13. the basic structural unit of nucleic acids

29 Clues: process of going into solution • substances that react with acids • a substance that stops an activity • characterized by opposite extremes • that which has mass and occupies space • lasting attraction between atoms or ions • the basic structural unit of nucleic acids • the capacity of a physical system to do work • essential structural component of living cells • ...

Chapter 8: Microbial Metabolism 2024-03-13

Chapter 8: Microbial Metabolism crossword puzzle
Across
  1. To increase the rate or likelihood of a chemical reaction by lowering the activation energy of that reaction
  2. An organic molecule that binds to the active sites of certain enzymes to assist in the catalysis of a reaction
  3. Three-dimensional folding pattern of protein due to side chain interactions
  4. The sum of all chemical reactions within a living organism
  5. Reaction rate can be increase by...
  6. A molecule that catalyzes biochemical reactions in living organisms, usually ends in -ase
  7. Frequency of molecules in a group to achieve activation energy and be rearranged
  8. Joins together quaternary structure (with hydrogen bonds, and disulfide bridges)
  9. Local folding of the polypeptide chain into helices or sheets
  10. Metabolic processes that release energy and involve the breakdown of more complex molecules into simpler molecules
  11. Sequence of a chain of amino acids
  12. Joins together tertiary protein structure
  13. Substance that is acted upon by by an enzyme
Down
  1. Can form hydrogen, ionic, and disulfide bonds, along with polar/non-polar interactions needed to form protein structures
  2. Area of an enzyme that binds a substrate
  3. Joins together primary protein structure
  4. Joins together secondary protein structure
  5. Can be increased or decreased by temperature, pressure, pH, ionic concentration
  6. Organic (enzymes) or inorganic molecule that increases a chemical reaction rate
  7. Protein consisting of more than one amino acid chain
  8. Metabolic processes that use energy to construct larger and more complex organic molecules
  9. In catalysis, enzymes act by...

22 Clues: In catalysis, enzymes act by... • Sequence of a chain of amino acids • Reaction rate can be increase by... • Area of an enzyme that binds a substrate • Joins together primary protein structure • Joins together tertiary protein structure • Joins together secondary protein structure • Substance that is acted upon by by an enzyme • ...

Unit 1 and 2 Chemistry Crossword 2024-09-26

Unit 1 and 2 Chemistry Crossword crossword puzzle
Across
  1. How much heat is required to raise 1 gram of an object one degree C
  2. When energy is transferred from one object to another, we call that
  3. This is where electrons are found
  4. A way to organize electrons into unique orbitals
  5. How often a wave passes a given point per unit of time
  6. This subatomic particle is used to identify the element
  7. A one or two letter abbreviation that represents an element
  8. the value equal to 6.626*10^-34
  9. When the amount of this subatomic particle is changed an ion is formed
  10. Atoms of the same element with different mass numbers
  11. negatively charged subatomic particle than has negligible mass
  12. A spectrum that classifies the various types of wavelengths based on properties
Down
  1. The area of study in a chemical reaction
  2. The electron on the farthest orbital from the nucleus
  3. The distance between two wave crests that are next to each other
  4. This contains protons, neutrons, and electrons inside of it
  5. This is where the mass of the atom is found
  6. When the reaction absorbs heat from the surroundings
  7. The number of protons in an element
  8. Measuring heat changes in a chemical reaction
  9. disorder
  10. The way we see elements neatly arranged today
  11. the area not being studied in a chemical reaction
  12. When the reaction releases heat to the surroundings
  13. The total heat content of a system

25 Clues: disorder • the value equal to 6.626*10^-34 • This is where electrons are found • The total heat content of a system • The number of protons in an element • The area of study in a chemical reaction • This is where the mass of the atom is found • Measuring heat changes in a chemical reaction • The way we see elements neatly arranged today • ...

Stoichiometry Vocabulary 2014-02-20

Stoichiometry Vocabulary crossword puzzle
Across
  1. 6.02x10^23 representative particles.
  2. The reactant that is not completely used up in the reaction.
  3. Mass and atoms are conserved in every chemical reaction.
  4. The amount of product that actually forms when the reaction is performed.
  5. The mass of one mole of an element or compound expressed in grams.
  6. A Reactant the determines the amount of product that can be formed by a reaction.
  7. A measure of the efficiency of hitting a baseball.
  8. Calculations of quantities in chemical reactions.
Down
  1. Atoms, molecules, ions, or formula units.
  2. The maximum amount of product that will form during a reaction.
  3. The SI unit for measuring the amount of a substance.
  4. Conversion factor derived from the coefficients of a balanced chemical equation interpreted in moles.

12 Clues: 6.02x10^23 representative particles. • Atoms, molecules, ions, or formula units. • Calculations of quantities in chemical reactions. • A measure of the efficiency of hitting a baseball. • The SI unit for measuring the amount of a substance. • Mass and atoms are conserved in every chemical reaction. • The reactant that is not completely used up in the reaction. • ...

Chemical Changes 2025-09-27

Chemical Changes crossword puzzle
Across
  1. A chemical change is not ___.
  2. When the ___ remains the same it is a physical change.
  3. The final substances in a reaction are called ___.
  4. The increase in temperature is known as an ___ reaction.
  5. A change to something new is a ___ change.
  6. The decrease in temperature is known as an ___ reaction.
  7. The production of bubbles means a ___ was formed.
Down
  1. The formation of a solid is a formation of a __.
  2. When the ___ of the substance changes it is a chemical change.
  3. A change in appearance is a ___ change.
  4. The change is smell is the change of ___.
  5. The starting substances in a reaction are called ___.

12 Clues: A chemical change is not ___. • A change in appearance is a ___ change. • The change is smell is the change of ___. • A change to something new is a ___ change. • The formation of a solid is a formation of a __. • The production of bubbles means a ___ was formed. • The final substances in a reaction are called ___. • ...

Enzymes 2026-03-03

Enzymes crossword puzzle
Across
  1. is a reaction that absorbs free energy from surroundings
  2. down large molecules to smaller ones
  3. a process of making large molecules from smaller ones
  4. a substance that starts a chemical reaction.
  5. a reaction that has a net release of free energy
  6. fit: describes a flexible active site that changes shape or conforms to the substrate as they bond together
  7. energy:the energy required to start any reaction
Down
  1. that is formed as the result of a chemical reaction.
  2. the sum of all chemical reactions occurring in that cell
  3. are small organic molecules bind to an enzyme and help it work
  4. the activity of enzyme they reduce or stop the enzyme from functioning
  5. and key: describes active site as having a set shale

12 Clues: down large molecules to smaller ones • a substance that starts a chemical reaction. • a reaction that has a net release of free energy • energy:the energy required to start any reaction • that is formed as the result of a chemical reaction. • and key: describes active site as having a set shale • a process of making large molecules from smaller ones • ...

ZNxDeathNote Ch.13 2019-03-12

ZNxDeathNote Ch.13 crossword puzzle
Across
  1. The reacting substances in a chemical reaction.
  2. The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.
  3. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  4. The deterioration of a metal, typically caused by atmospheric oxygen.
  5. A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right.
Down
  1. A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
  2. A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases.
  3. The new materials formed in a chemical reaction.
  4. A substance that donates hydrogen ions.
  5. A substance that accepts hydrogen ions.

10 Clues: A substance that donates hydrogen ions. • A substance that accepts hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • The deterioration of a metal, typically caused by atmospheric oxygen. • A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen. • ...

Chapter 13 2019-10-06

Chapter 13 crossword puzzle
Across
  1. a chemical reaction that breaks up, or divides the substances back to their own self, and has a plus side on the right side of the arrow
  2. a reaction with a net release of energy
  3. the amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when theyn are brought togethe
  4. how quickly the concentration of reactants decreases and how quickly the concentration of a reactant increases
  5. a chemical reaction that has a plus side on the left of the arrow and combines the substances
Down
  1. a reaction with net absorption of energy
  2. a chemical that donates a hydrogen ion, H+
  3. a substance that lowers the activation energy of a chemical reaction, which allows for the reaction to proceed at a faster rate
  4. when reaction and its reverse act at the same rate
  5. a chemical that accepts a hydrogen ion, H+

10 Clues: a reaction with a net release of energy • a reaction with net absorption of energy • a chemical that donates a hydrogen ion, H+ • a chemical that accepts a hydrogen ion, H+ • when reaction and its reverse act at the same rate • a chemical reaction that has a plus side on the left of the arrow and combines the substances • ...

word list for enzyme crossword 2026-03-04

word list for enzyme crossword crossword puzzle
Across
  1. The process of making large molecules from smaller ones.
  2. Some enzymes require an additional organic non-protein molecule.
  3. The reaction that has a net release of free energy.
  4. The sum of all the chemical reactions occurring in that cell.
  5. The process of breaking down large molecules into smaller ones.
  6. The active site as having a set shape,the substrate molecules fit perfectly into active site
Down
  1. The substance formed at the end of a chemical reaction.
  2. A flexible active site that changes shape, or conforms, to the substrate as they bond together.
  3. The starting substance in a chemical reaction
  4. Inhibit the activity of enzymes.
  5. The reaction that absorbs free energy from the surroundings.
  6. The energy required to start any reaction.

12 Clues: Inhibit the activity of enzymes. • The energy required to start any reaction. • The starting substance in a chemical reaction • The reaction that has a net release of free energy. • The substance formed at the end of a chemical reaction. • The process of making large molecules from smaller ones. • The reaction that absorbs free energy from the surroundings. • ...

Enzymes 2026-03-03

Enzymes crossword puzzle
Across
  1. is a reaction that absorbs free energy from surroundings
  2. down large molecules to smaller ones
  3. a process of making large molecules from smaller ones
  4. a substance that starts a chemical reaction.
  5. a reaction that has a net release of free energy
  6. fit: describes a flexible active site that changes shape or conforms to the substrate as they bond together
  7. energy:the energy required to start any reaction
Down
  1. that is formed as the result of a chemical reaction.
  2. the sum of all chemical reactions occurring in that cell
  3. are small organic molecules bind to an enzyme and help it work
  4. the activity of enzyme they reduce or stop the enzyme from functioning
  5. and key: describes active site as having a set shale

12 Clues: down large molecules to smaller ones • a substance that starts a chemical reaction. • a reaction that has a net release of free energy • energy:the energy required to start any reaction • that is formed as the result of a chemical reaction. • and key: describes active site as having a set shale • a process of making large molecules from smaller ones • ...

Chapter 2 Vocabulary- Bryden 2017-03-09

Chapter 2 Vocabulary- Bryden crossword puzzle
Across
  1. Reaction- process describes a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat.
  2. are the species formed from chemical reactions.
  3. is a chemical reaction in which an acid and a base react quantitatively with each other.
  4. rapid chemical combination of a substance with oxygen, involving the production of heat and light.
Down
  1. Reaction- is a chemical reaction that releases energy by light or heat.
  2. a substance that takes part in and undergoes change during a reaction.
  3. a substance to be deposited in solid form from a solution.
  4. Reaction- a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
  5. Changes- Chemical reactions often involve changes in energy due to the breaking and formation of bonds.

9 Clues: are the species formed from chemical reactions. • a substance to be deposited in solid form from a solution. • a substance that takes part in and undergoes change during a reaction. • Reaction- is a chemical reaction that releases energy by light or heat. • is a chemical reaction in which an acid and a base react quantitatively with each other. • ...

Jason Babatido 2022-03-08

Jason Babatido crossword puzzle
Across
  1. study of ratios within chemical reactions
  2. maximum possible mass of a product that can be made in a chemical reaction
  3. reaction between substances that results in the production of new substances
Down
  1. the reactant that limits how much of a product that can be made
  2. mass of a product that was obtained out of the maximum possible mass
  3. mass of one mole of a substance
  4. symbolic representation of a chemical reaction in the form of symbols
  5. the results of a chemical reaction between substances
  6. 6.02x10^23 chemical units of a substance
  7. relation between amounts between substances

10 Clues: mass of one mole of a substance • 6.02x10^23 chemical units of a substance • study of ratios within chemical reactions • relation between amounts between substances • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...

Jason Babatido 2022-03-08

Jason Babatido crossword puzzle
Across
  1. relation between amounts between subsa
  2. mass of one mole of a substance
  3. maximum possible mass of a product that can be made in a chemical reaction
  4. mass of a product that was obtained out of the maximum possible mass
  5. reaction between substances that results in the production of new substances
  6. the results of a chemical reaction between substances
Down
  1. study of ratios within chemical reactions
  2. symbolic representation of a chemical reaction in the form of symbols
  3. 6.02x10^23 chemical untis of a substance
  4. the reactant that limits how much of a product that can be made

10 Clues: mass of one mole of a substance • relation between amounts between subsa • 6.02x10^23 chemical untis of a substance • study of ratios within chemical reactions • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...

Scie F 2023-12-07

Scie F crossword puzzle
Across
  1. Formula showing the simplest whole-number ratio of elements in a compound
  2. Chemical reaction that releases heat to its surroundings
  3. Type of chemical reaction involving both reduction and oxidation processes
  4. Shell Outermost electron shell of an atom involved in chemical bonding
Down
  1. Organic compound consisting of hydrogen and carbon atoms
  2. Separation technique based on differences in boiling points of substances
  3. Molecules with the same molecular formula but different structures
  4. Process of using electrical energy to drive a non-spontaneous chemical reaction
  5. Solid formed during a chemical reaction in a solution
  6. Amount of solute present in a given amount of solvent or solution

10 Clues: Solid formed during a chemical reaction in a solution • Organic compound consisting of hydrogen and carbon atoms • Chemical reaction that releases heat to its surroundings • Amount of solute present in a given amount of solvent or solution • Molecules with the same molecular formula but different structures • ...

Block 1 Crossword~Mia Cassady 2018-03-09

Block 1 Crossword~Mia Cassady crossword puzzle
Across
  1. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  2. The amount of energy required to pull two bonded atoms apart.
  3. The minimum energy required in order for a chemical reaction to proceed.
  4. A measure of the acidity of a solution.
  5. Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration.
Down
  1. A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases.
  2. Description of a chemical reaction in which there is a net absorption of energy.
  3. Description of a solution in which the hydroxide ion concentration is high than the hydronium ion concentration.
  4. A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
  5. Description of a chemical reaction in which there is a net release of energy.

10 Clues: A measure of the acidity of a solution. • The amount of energy required to pull two bonded atoms apart. • The minimum energy required in order for a chemical reaction to proceed. • Description of a chemical reaction in which there is a net release of energy. • Description of a chemical reaction in which there is a net absorption of energy. • ...

SOPHIA HOTTON 3RD SCIENCE JONES CROSSWORD PUZZLE 2025-02-13

SOPHIA HOTTON 3RD SCIENCE JONES CROSSWORD PUZZLE crossword puzzle
Across
  1. This happens when plasma goes back to the gaseous state
  2. The total kinetic energy of the tiny particles that makeup matter; the faster the particles move the warmer the matter becomes
  3. This is an exothermic reaction that happens when it is lit by a match or lighter and produces light and heat.
Down
  1. This is an example of an endothermic reaction that has to do with how plants absorb sunlight and make it into food.
  2. A substance produced during a chemical reaction
  3. A chemical reaction in which heat is absorbed
  4. reaction the process by which one or more substances change to produce one or more different substances
  5. A chemical reaction in which heat is released
  6. A substance that takes part in and undergoes change during a chemical reaction
  7. The state of matter that moves faster than a gas and has electricity running through it

10 Clues: A chemical reaction in which heat is absorbed • A chemical reaction in which heat is released • A substance produced during a chemical reaction • This happens when plasma goes back to the gaseous state • A substance that takes part in and undergoes change during a chemical reaction • ...

Chemistry Review 2017-02-12

Chemistry Review crossword puzzle
Across
  1. (on the P.T.): a column of elements
  2. atomic particles found in the nucleus of atom and carry a positive charge (+)
  3. is a substance formed when two or more chemical elements are chemically bonded together. Two types of chemical bonds common in compounds are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios
  4. number: that always contains the same number of protons and electrons
  5. accompanied by the release of heat.
  6. a substance that takes part in and undergoes change during a reaction
  7. a chemical reaction that is accompanied by the absorption of heat, or an organism that generates heat to maintain its temperature. A chemical reaction that works only if heat is absorbed is an example of a reaction that would be described as endothermic
  8. Gas: any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known
  9. Bohr: Danish physicist who proposed a theory for the hydrogen atom based on quantum theory.
  10. of Conservation of Mass: the number atoms present BEFORE and AFTER a reaction takes place is ALWAYS the same
  11. hard and solid and shiny, electricity, good conductors of heat, ductile, and malleable
  12. atomic particles found in the nucleus of atom and has no charge
Down
  1. a mark or character used as a conventional representation of an object, function, or process, e.g., the letter or letters standing for a chemical element or a character in musical notation.
  2. Mendeleev: Russian chemist who formulated the Periodic Law
  3. combination of two or more elements link together
  4. (on the P.T.): the side of a table
  5. is a substance that is formed when two or more chemicals react. When a chemical reaction takes place, a new substance is often created from the atoms or molecules of the original substances. There are often multiple products formed in a reaction
  6. a cause to be deposited in solid form from a solution
  7. brittle, not malleable or ductile, poor conductors of heat and electricity
  8. it is the most important part of an object, movement, or group, forming the basis for its activity and growth
  9. atomic particles that move around the nucleus of an atom and carry a negative charge (-)
  10. each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function
  11. electron: electrons in the outermost energy level of an atom
  12. it is a basic unit of a chemical element
  13. show both properties
  14. is a substance that is made up of one type of atom

26 Clues: show both properties • (on the P.T.): the side of a table • accompanied by the release of heat. • (on the P.T.): a column of elements • it is a basic unit of a chemical element • combination of two or more elements link together • is a substance that is made up of one type of atom • a cause to be deposited in solid form from a solution • ...

Chemical Reactions 2025-10-20

Chemical Reactions crossword puzzle
Across
  1. A measure of how much solute can dissolve in a given solvent at a given temperature
  2. change A change in which one or more substances combine or break apart to form new substances
  3. The part of a solution that is usually present in the largest amount and dissolves a solute
  4. A substance that enters into a chemical reaction
  5. The part of a solution that is dissolved by a solvent
  6. When one substance completely disappears into another substance to form a solution
  7. A substance formed as a result of a chemical reaction
  8. Two or more substances together in the same place but their atoms are not chemically bonded
Down
  1. change A change that alters the form or appearance of a material but does not make the material into another substance
  2. A mixture in which particles can be seen and easily separated by settling or filtration
  3. reaction A reaction that releases energy, usually in the form of heat
  4. A mixture in which one substance is dissolved in another
  5. How quickly something occurs
  6. A mixture containing small, undissolved particles that do not settle out
  7. reaction A reaction that absorbs energy

15 Clues: How quickly something occurs • 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 formed as a result of a chemical reaction • A mixture in which one substance is dissolved in another • reaction A reaction that releases energy, usually in the form of heat • ...

Jason Babatido 2022-03-08

Jason Babatido crossword puzzle
Across
  1. study of ratios within chemical reactions
  2. maximum possible mass of a product that can be made in a chemical reaction
  3. reaction between substances that results in the production of new substances
Down
  1. the reactant that limits how much of a product that can be made
  2. mass of a product that was obtained out of the maximum possible mass
  3. mass of one mole of a substance
  4. symbolic representation of a chemical reaction in the form of symbols
  5. the results of a chemical reaction between substances
  6. 6.02x10^23 chemical units of a substance
  7. relation between amounts between substances

10 Clues: mass of one mole of a substance • 6.02x10^23 chemical units of a substance • study of ratios within chemical reactions • relation between amounts between substances • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...

CHEM 2: Thermochemistry Terms 2023-10-23

CHEM 2: Thermochemistry Terms crossword puzzle
Across
  1. The SI unit of energy
  2. The coldest possible temperature
  3. The amount of energy needed to raise 1 g of a substance by 1 degree Celsius
  4. A chemical reaction during which energy is released
Down
  1. A chemical reaction during which energy is absorbed
  2. The study of energy transfer in chemical reactions and physical changes
  3. The environment of a chemical reaction
  4. The "focus" of a chemical reaction
  5. Calculations around the transfer of energy between two objects in contact with each other
  6. The amount of energy needed to raise the temperature of a substance by 1 degree Celsius

10 Clues: The SI unit of energy • The coldest possible temperature • The "focus" of a chemical reaction • The environment of a chemical reaction • A chemical reaction during which energy is absorbed • A chemical reaction during which energy is released • The study of energy transfer in chemical reactions and physical changes • ...

Synthesis of β‑Lactams 2024-04-18

Synthesis of β‑Lactams crossword puzzle
Across
  1. A reaction in which one or more atoms replace another atom or group of atoms in a molecule.
  2. A plan of action designed to achieve a long-term or overall aim. (noun)
  3. A type of chemical reaction in which two molecules are combined to form a single molecule .
  4. Medicines that fight bacterial infections in people and animals. (noun)
  5. A molecular entity arising within the sequence of a stepwise chemical reaction (noun)
  6. To change in composition or structure. Synonyms: convert, remodel, redesign (verb)
  7. The removal (transfer) of a proton from a compound. (noun)
  8. Capable of catching or being set on fire. (adjective) (noun)
  9. An electromagnetic radiation with wavelengths longer than that of visible light but shorter than microwaves. (noun)
Down
  1. Produced by humans rather than natural processes. Synonyms: artificial, man-made. (adjective)
  2. A reactant that donates a pair of electrons to form a new covalent bond. (noun)
  3. The process to create polymers. (noun)
  4. A mechanism step or reaction in which an atom or group migrates from one carbon atom to another. (noun)
  5. A substance that increase the reaction rate of a chemical reaction without being consumed in the process. (noun)
  6. Compound that are formed from a similar compound. (noun)

15 Clues: The process to create polymers. (noun) • Compound that are formed from a similar compound. (noun) • The removal (transfer) of a proton from a compound. (noun) • Capable of catching or being set on fire. (adjective) (noun) • A plan of action designed to achieve a long-term or overall aim. (noun) • ...

Chemistry 2021-04-05

Chemistry crossword puzzle
Across
  1. A type of combustion carried out by all living things
  2. A substance that turns litmus paper red and tastes sour
  3. A substance that turns litmus paper blur and tastes bitter
  4. A chemical reaction that is caused when an acid and a base is mixed
  5. A reaction where two solutions combine to form a precipitate
  6. combustion A substance burning in less oxygen
  7. A metal reacting with oxygen
  8. A reaction that releases heat energy
  9. dioxide A gas that turns lime water milky and cloudy
Down
  1. Something that gives a visual sign of an acid/base
  2. Burning a substance in oxygen
  3. rain Precipitation with high level of nitric acid or sulphuric acid
  4. A reaction that absorbs heat energy
  5. A gas that is tested by a pop test
  6. A fundamental and basic building block of matter
  7. A gas that is tested by bringing a glowing splint in front of a test tube and it starts burning
  8. reaction Substances react to form new substances by rearranging atoms

17 Clues: A metal reacting with oxygen • Burning a substance in oxygen • A gas that is tested by a pop test • A reaction that absorbs heat energy • A reaction that releases heat energy • combustion A substance burning in less oxygen • A fundamental and basic building block of matter • Something that gives a visual sign of an acid/base • ...

Chapter 2 crossword 1 2014-11-18

Chapter 2 crossword 1 crossword puzzle
Across
  1. - anything that has mass and occupies space
  2. - The nucleobase of a nucleotide involved in base pairing, as of a DNA or RNA polymer
  3. - a subatomic particle of about the same mass as a proton but without an electric charge
  4. - the fixed amount of energy that a system described by quantum mechanics
  5. - A material made up of two or more parts or elements
  6. - a substance that takes part in and undergoes change during a reaction
  7. - oxidation reactions include all chemical reactions in which atoms have their oxidation state changed
  8. - a measure of how acidic or basic a substance is
  9. - a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion.
  10. - smallest component of an element having the chemical properties of the element
Down
  1. - a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge
  2. - having the properties of an alkali, or containing alkali; having a pH greater than 7
  3. - the minor component in a solution, dissolved in the solven
  4. - a close gathering of people or things
  5. - a stable subatomic particle with a charge of negative electricity
  6. - a metabolic or chemical process accompanied by the release of energy
  7. - any chemical reaction that involves the gaining of electrons
  8. - something that binds, fastens, confines, or holds together
  9. - the ability to work
  10. ion - the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids
  11. - the liquid in which a solute is dissolved to form a solution
  12. - a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

22 Clues: - the ability to work • - a close gathering of people or things • - anything that has mass and occupies space • - a measure of how acidic or basic a substance is • - A material made up of two or more parts or elements • - the minor component in a solution, dissolved in the solven • - something that binds, fastens, confines, or holds together • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Chemistry and plants 2014-03-25

Chemistry and plants crossword puzzle
Across
  1. Number ​number of protons in an atom
  2. a factory that contains chlorophyll to carry out photosynthesis
  3. Contains half the information for a new plant
  4. table​​an arrangement of all known elements in order of their size and structure
  5. Male part of a flower
  6. cells Cells that cause the stomata to open & close
  7. substances containing only one type of atom
  8. Green chemical in chloroplasts inside cells in the leaves used for photosynthesis
  9. Small hole under the leaf to allow gas exchange
  10. how plants are put into groups with similar structures
  11. or more atoms joined together
  12. space for storing glucose, water and other nutrients
  13. a chemical breaks apart into 2 or more chemicals in a reaction
  14. chemicals made by the equation
  15. cycle How carbon atoms are used and recycled
  16. solid produced when 2 liquids react
  17. study of matter and how it behaves
  18. bundles Bundle of tubes that are joined from roots to the leaves.
  19. dispersal how the seeds are designed to be moved away from the parent tree.
  20. How water moves through a plant
  21. of reaction​how fast a reaction happens
  22. or more molecules or compounds
  23. Living things with roots, stems and leaves that produce their own food
  24. Female part of the flower
  25. particles in an atom found in the nucleus
  26. equation​​shows what chemical are at the start and at the end of a reaction
  27. plant material used for building cells
  28. contains all the recipes and instructions for making new plant chemicals
  29. Colored parts of the flower to attract insects
  30. Large molecule made with lots of sugar molecules joining together
Down
  1. Tubes that carry plant food
  2. contains lots of small factories to process food, wastes and new chemical for growth
  3. change​change in appearance, easily reversible
  4. or more different atoms joined together
  5. a group of flowering plants eg grasses that have 1 seed leaf
  6. A way of storing nutrients for the seeds.
  7. food made by plants ( type of sugar)
  8. Tubes that carry water up a plant
  9. Number​​number of protons plus neutrons in an atom
  10. contains the egg
  11. chemicals swap partners in a reaction
  12. a group of flowering plants eg trees & shrubs that have 2 seed leaves.
  13. hairs Microscopic tubes that collect water and nutrients from the soil
  14. process of gaining knowledge by observation and experiment
  15. particles in an atom found in the nucleus
  16. 2 smaller chemicals join in a reaction
  17. + O2 → CO2 + H2O + energy
  18. negative particles orbiting the nucleus
  19. How all living things turn food & O2 into energy. Happens 24/7
  20. Process that plants use to make their own food & oxygen
  21. reaction with oxygen ( burning )
  22. chemicals used at the start of the reaction
  23. change​new chemical formed, not easily reversed
  24. + CO2 + H2O → Food ( glucose) + O2
  25. chemicals are made
  26. of mass​ mass is always the same at the start and end of a reaction
  27. effect Gases like water vapor and carbon dioxide trap heat and keep the earth warm.
  28. atom containing an equal number of protons and electrons is electrically neutral.
  29. wall rigid wall that supports the cell
  30. Contains half the information for a new plant

60 Clues: contains the egg • chemicals are made • Male part of a flower • + O2 → CO2 + H2O + energy • Female part of the flower • Tubes that carry plant food • or more atoms joined together • chemicals made by the equation • or more molecules or compounds • How water moves through a plant • reaction with oxygen ( burning ) • Tubes that carry water up a plant • ...

Chemistry and plants 2014-03-25

Chemistry and plants crossword puzzle
Across
  1. neutral particles in an atom found in the nucleus
  2. two or more atoms joined together
  3. 2 or more molecules or compounds
  4. effect Gases like water vapor and carbon dioxide trap heat and keep the earth warm.
  5. of reaction​how fast a reaction happens
  6. Green chemical in chloroplasts inside cells in the leaves used for photosynthesis
  7. plant material used for building cells
  8. table​​ an arrangement of all known elements in order of their size and structure
  9. a group of flowering plants eg grasses that have 1 seed leaf
  10. Living things with roots, stems and leaves that produce their own food
  11. atom containing an equal number of protons and electrons is electrically neutral.
  12. of mass​ mass is always the same at the start and end of a reaction
  13. when a chemical breaks apart into 2 or more chemicals in a reaction
  14. how plants are put into groups with similar structures
  15. when chemicals swap partners in a reaction
  16. contains all the recipes and instructions for making new plant chemicals
  17. space for storing glucose, water and other nutrients
  18. number of protons plus neutrons in an atom
  19. contains lots of small factories to process food, wastes and new chemical for growth
  20. + CO2 + H2O → Food ( glucose) + O2
  21. wall rigid wall that supports the cell
  22. positive particles in an atom found in the nucleus
  23. the process of gaining knowledge by observation and experiment
  24. a group of flowering plants eg trees & shrubs that have 2 seed leaves.
  25. Tubes that carry plant food
  26. contains the egg
  27. hairs Microscopic tubes that collect water and nutrients from the soil
  28. Tubes that carry water up a plant
  29. Contains half the information for a new plant
  30. cells Cells that cause the stomata to open & close
Down
  1. dispersal how the seeds are designed to be moved away from the parent tree.
  2. the chemicals used at the start of the reaction
  3. smaller negative particles orbiting the nucleus
  4. Male part of a flower
  5. change​ new chemical formed, not easily reversed
  6. A way of storing nutrients for the seeds.
  7. bundles of tubes that are joined from roots to the leaves.
  8. Contains half the information for a new plant
  9. the solid produced when 2 liquids react
  10. How all living things turn food & O2 into energy. Happens 24/7
  11. How water moves through a plant
  12. when 2 smaller chemicals join in a reaction
  13. equation​​ shows what chemical are at the start and at the end of a reaction
  14. the chemicals made by the equation
  15. Process that plants use to make their own food & oxygen
  16. the study of matter and how it behaves
  17. a factory that contains chlorophyll to carry out photosynthesis
  18. pure substances containing only one type of atom
  19. new chemicals are made
  20. change in appearance, easily reversible
  21. a reaction with oxygen ( burning )
  22. Large molecule made with lots of sugar molecules joining together
  23. 2 or more different atoms joined together
  24. number of protons in an atom
  25. food made by plants ( type of sugar)
  26. Small hole under the leaf to allow gas exchange
  27. cycle How carbon atoms are used and recycled
  28. Female part of the flower
  29. Colored parts of the flower to attract insects
  30. + O2 → CO2 + H2O + energy

60 Clues: contains the egg • Male part of a flower • Female part of the flower • + O2 → CO2 + H2O + energy • new chemicals are made • Tubes that carry plant food • number of protons in an atom • How water moves through a plant • Tubes that carry water up a plant • + CO2 + H2O → Food ( glucose) + O2 • food made by plants ( type of sugar) • two or more atoms joined together • ...

eddie 2.1 vocab 2021-10-26

eddie 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy
  2. the substance present before a chemical change occurs
  3. a chemical reaction that absorbs heat energy
  4. a chemical reaction
Down
  1. a chemical change
  2. the substances formed during a chemical reaction
  3. a change in matter that does not affect its chemical composition
  4. material that has mass and takes up space

8 Clues: a chemical change • a chemical reaction • material that has mass and takes up space • chemical reaction that gives off heat energy • a chemical reaction that absorbs heat energy • the substances formed during a chemical reaction • the substance present before a chemical change occurs • a change in matter that does not affect its chemical composition

Ch. 13 Crossword by Katie Hoffman 2020-10-14

Ch. 13 Crossword by Katie Hoffman crossword puzzle
Across
  1. Bond energy is also known as _____.
  2. A chemical that accepts a hydrogen ion.
  3. same rate.
  4. Concentration, temperature, pressure, catalysts, and surface area/shape all affect _____.
Down
  1. When reaction and it’s reverse act at
  2. Something that lowers activation energy in a chemical reaction to speed up the reaction.
  3. _____ can behave as a base or an acid.
  4. In an _____ reaction there is a net release of energy.
  5. In an _____ reaction there is a net absorption of energy.
  6. A chemical that donates a hydrogen ion.

10 Clues: same rate. • Bond energy is also known as _____. • When reaction and it’s reverse act at • _____ can behave as a base or an acid. • A chemical that accepts a hydrogen ion. • A chemical that donates a hydrogen ion. • In an _____ reaction there is a net release of energy. • In an _____ reaction there is a net absorption of energy. • ...

Language of Chemistry 2023-02-14

Language of Chemistry crossword puzzle
Across
  1. The gas with rotten egg smell.
  2. the substance that takes part in a chemical reaction
  3. The gas that rekindles a glowing splinter.
  4. An insoluble solid formed during the reaction
Down
  1. the substances formed during the chemical reaction
  2. The substance that alters the rate of the chemical reaction without taking part in it.
  3. The reaction in which heat is released.
  4. The gas formed when zinc reacts with hydrochloric acid
  5. The colour of the residue formed when copper carbonate is heated.
  6. Carbon dioxide turns ______ milky.

10 Clues: The gas with rotten egg smell. • Carbon dioxide turns ______ milky. • The reaction in which heat is released. • The gas that rekindles a glowing splinter. • An insoluble solid formed during the reaction • the substances formed during the chemical reaction • the substance that takes part in a chemical reaction • The gas formed when zinc reacts with hydrochloric acid • ...

Discussion 2 Crossword Puzzle 2025-06-08

Discussion 2 Crossword Puzzle crossword puzzle
Across
  1. The process of gaining electrons in a chemical reaction.
  2. In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, which element is reduced?
  3. The name of a transition metal that often has a +2 or +3 charge.
  4. In Mg + 2HCl → MgCl₂ + H₂, what is reduced?
  5. The substances formed in a chemical reaction
Down
  1. The ratio of actual yield to theoretical yield times 100.
  2. If 16g of oxygen reacts with 2g of hydrogen, what is the limiting reactant?
  3. The percent yield formula compares actual and ___ yield
  4. Reaction where one element replaces another in a compound. Reaction between an acid and a base to form water and a salt.
  5. Reactant that is completely used up first, stopping the reaction.
  6. The name of the process where electrons are lost.
  7. Calculations of reactants and products in chemical reactions based on balanced equations.

12 Clues: In Mg + 2HCl → MgCl₂ + H₂, what is reduced? • The substances formed in a chemical reaction • The name of the process where electrons are lost. • The percent yield formula compares actual and ___ yield • The process of gaining electrons in a chemical reaction. • The ratio of actual yield to theoretical yield times 100. • ...

G6 Chemical Equation 2025-12-16

G6 Chemical Equation crossword puzzle
Across
  1. Two or more atoms held together by chemical bonds.
  2. Uses chemical formulas to model what happens in a chemical reaction.
  3. Substance present after the chemical reaction.
  4. Repeated units that give crystal structure.
  5. is a number placed in front of a chemical formula to show how many molecules of the substance are represented in the chemical equation.
  6. substance are those that can be observed or measured without changing the substance’s identity.
Down
  1. Is the process in which atoms are rearranged to produce different substances.
  2. A number below and to the right of the symbol, shows how many atoms of that element there are.
  3. states that matter cannot be created or destroyed in ordinary chemical or physical changes.
  4. A type of matter that can't be separated physically such as water.
  5. can be determined by observing whether or not a substance can change into another substance under a given set of conditions.
  6. A combination of chemical symbols and numbers that is used to represent a single unit of a substance
  7. Substance present before the chemical reaction occurs.

13 Clues: Repeated units that give crystal structure. • Substance present after the chemical reaction. • Two or more atoms held together by chemical bonds. • Substance present before the chemical reaction occurs. • A type of matter that can't be separated physically such as water. • Uses chemical formulas to model what happens in a chemical reaction. • ...

Bonding and Naming crossword puzzle 2018-09-11

Bonding and Naming crossword puzzle crossword puzzle
Across
  1. change of one substance in to a new substance
  2. positive or negative number that indicates how many electrons an atom has gained, lost or shared to become stable
  3. process in which one or more substances are changed into new substances
  4. the force of attraction between the opposite charges of the ions in an ionic compound
  5. covalent bond in which the electrons are not shared equally, resulting in a slightly positive end and a slightly negative end
  6. the process of a solid changing directly to a vapor without forming a liquid
  7. compound that that is composed of two electrons
  8. a neutral particle that forms as a result of electron sharing among atoms
  9. the temperature at which the pressure of the vapor of a liquid is equal to the external pressure acting on the surface of the liquid
  10. temperature at which a solid begins to liquefy
Down
  1. any change in size, shape, or state of matter in which the identity of the substances remains the same
  2. in a chemical reaction, the new substance or substance formed
  3. attraction formed between atoms when they share electrons
  4. chemical shorthand that uses symbols to tell what elements are in a compound and Meir ratios
  5. positivity or negatively charged, covalent bonded group of atoms
  6. with enough energy to overcome the attractive forces within its atom, composed of positively and negatively charged particles
  7. charged particle that has either more or fewer electrons than protons
  8. a covalent bond in which electrons equally by both atoms
  9. force that holds atoms together in a compound
  10. in a chemical reaction, the substances that reacts

20 Clues: change of one substance in to a new substance • force that holds atoms together in a compound • temperature at which a solid begins to liquefy • compound that that is composed of two electrons • in a chemical reaction, the substances that reacts • a covalent bond in which electrons equally by both atoms • attraction formed between atoms when they share electrons • ...

Organic Chemistry 2022-01-26

Organic Chemistry crossword puzzle
Across
  1. Aromatic hydrocarbons
  2. A substance that enters into and is altered in the course of a chemical reaction
  3. Chemical bond dissociation of a molecular bond by a process where each of the fragments retain one of the originally bonded electrons
  4. A molecular fragment that departs with a pair of electrons in heterolytic bond clevage
  5. A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangements of atoms
  6. used in mechanisms to show the various electron pairs moving around
Down
  1. The process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species
  2. Another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them
  3. A chemical reaction during which one functional group in a chemical compound is replaced by another functional group
  4. A reaction in which two or more molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or methanol
  5. A chemical species that forms bonds with electrophiles by donating an electron pair
  6. Any organic chemical compound in which the atoms are connected by single, double, or triple bonds to form nonaromatic structures
  7. A formula which shows the arrangement of atoms in the molecule of a compound
  8. An organic reaction where 2+ molecules combine to form a larger one
  9. A chemical species that forms bonds with nucleophiles by accepting an electron pair

15 Clues: Aromatic hydrocarbons • An organic reaction where 2+ molecules combine to form a larger one • used in mechanisms to show the various electron pairs moving around • A formula which shows the arrangement of atoms in the molecule of a compound • A substance that enters into and is altered in the course of a chemical reaction • ...

vocab for matter 2025-04-28

vocab for matter crossword puzzle
Across
  1. when reactants change to a different substance
  2. the study of how matter reacts with energy and matter
  3. the end product of a chemical reaction
  4. what makes up chemical elements
  5. how much space a object takes up
  6. a property that can be sensed with the 5 senses
  7. when something releases heat into it surroundings
  8. two or more atoms stuck together
Down
  1. when two objects stick together
  2. anything that can be weighed and takes up space
  3. the thing that goes through chemical changes
  4. something that is made up of atoms bonded together
  5. how hot or cold something is
  6. how much matter something has
  7. the ability to do work
  8. when a chemical changes to a different substance
  9. a form of energy between two different temps.
  10. something that can't be broken down any more

18 Clues: the ability to do work • how hot or cold something is • how much matter something has • when two objects stick together • what makes up chemical elements • how much space a object takes up • two or more atoms stuck together • the end product of a chemical reaction • the thing that goes through chemical changes • something that can't be broken down any more • ...

Thermochemistry 2022-12-11

Thermochemistry crossword puzzle
Across
  1. releases energy
  2. standard unit of heat and energy
  3. solid to gas
  4. measure of randomness
  5. molecules reach a balance between evaporation and condensation
  6. reaction is the amount of heat gained or lost in a chemical reaction
  7. study of heat changes during a chemical reaction
  8. equal to freezing point
Down
  1. temp of liquid equals external pressure
  2. heat the amount of heat required
  3. ability to do work
  4. absorbs energy
  5. temperature change

13 Clues: solid to gas • absorbs energy • releases energy • ability to do work • temperature change • measure of randomness • equal to freezing point • standard unit of heat and energy • heat the amount of heat required • temp of liquid equals external pressure • study of heat changes during a chemical reaction • molecules reach a balance between evaporation and condensation • ...

Exchange Reactions 2026-03-30

Exchange Reactions crossword puzzle
Across
  1. The substance, often a liquid, that dissolves another substance.
  2. The law stating that matter is neither created nor destroyed in a chemical reaction.
  3. The insoluble product of calcium nitrate and sodium carbonate.
  4. A measure of how much solute can dissolve in a given amount of solvent.
  5. The name of the polyatomic ion NO3-.
  6. The insoluble product of magnesium sulfate and silver hydroxide.
Down
  1. A homogeneous mixture formed when one substance dissolves in another.
  2. The insoluble product of copper chloride and silver nitrate.
  3. The name of the polyatomic ion SO42-.
  4. The substance that is dissolved in a mixture.
  5. An atom or molecule with a net electric charge.
  6. Describes a substance that does not dissolve in a particular solvent.
  7. A substance that takes part in and undergoes change during a reaction.
  8. A solid that forms and settles out of a liquid mixture during a chemical reaction.
  9. An ionic compound consisting of a metal (positive ion) and a nonmetal (negative ion)..
  10. A substance produced during a chemical reaction.
  11. The name of the polyatomic ion OH-

17 Clues: The name of the polyatomic ion OH- • The name of the polyatomic ion NO3-. • The name of the polyatomic ion SO42-. • The substance that is dissolved in a mixture. • An atom or molecule with a net electric charge. • A substance produced during a chemical reaction. • The insoluble product of copper chloride and silver nitrate. • ...

Arthurs Science Vocab 2024-05-16

Arthurs Science Vocab crossword puzzle
Across
  1. The amount of matter in an object
  2. What is formed after a chemical reaction
  3. A part of natural resources that works with properties of substances that change
  4. The substances that react in the chemical reactions
  5. The opposite of physical change
  6. The amount of space an object takes up
  7. Describes climate of hot or cold
  8. The transfer of thermal energy
Down
  1. A characteristic you can see during a physical change
  2. The opposite of chemical change
  3. Combinations of substances
  4. A characteristic you can see during a chemical change
  5. An interaction between two chemicals and what they do
  6. A force between two portions of a substance
  7. The smallest unit in an element
  8. Something that has mass and takes up space
  9. Something made up of atoms
  10. The ability to do things

18 Clues: The ability to do things • Combinations of substances • Something made up of atoms • The transfer of thermal energy • The opposite of chemical change • The smallest unit in an element • The opposite of physical change • Describes climate of hot or cold • The amount of matter in an object • The amount of space an object takes up • What is formed after a chemical reaction • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

Esvin 2.1 vocab 2021-10-27

Esvin 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives off heat energy.
  2. the substances present before a chemical reaction occurs in a chemical reaction the arrows.
  3. a chemical reaction that absorbs heat energy.
  4. when something changes into new substance.
Down
  1. a chemical change an process that changes substances in to new substances.
  2. the substances that are formed during a chemical reaction in a chemical reaction the arrows.
  3. a change in matter that doesn't effect its atom
  4. material that has mass and takes up some amount of space.

8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...

CHEMICAL REACTION 2024-11-15

CHEMICAL REACTION crossword puzzle
Across
  1. the species formed from chemical reactions
  2. The interaction between substances leads to the rearrangement of atoms or molecules, resulting in the formation of new substances.
  3. used in electric signs and fluorescent lamps
Down
  1. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
  2. the number of atoms of the element
  3. substance that takes part in and undergoes change during a reaction.

6 Clues: the number of atoms of the element • the species formed from chemical reactions • used in electric signs and fluorescent lamps • substance that takes part in and undergoes change during a reaction. • a numerical or constant quantity placed before and multiplying the variable in an algebraic expression • ...

Organic Chemistry 2022-01-26

Organic Chemistry crossword puzzle
Across
  1. Aromatic hydrocarbons
  2. A substance that enters into and is altered in the course of a chemical reaction
  3. Chemical bond dissociation of a molecular bond by a process where each of the fragments retain one of the originally bonded electrons
  4. A molecular fragment that departs with a pair of electrons in heterolytic bond clevage
  5. A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangements of atoms
  6. used in mechanisms to show the various electron pairs moving around
Down
  1. The process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species
  2. Another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them
  3. A chemical reaction during which one functional group in a chemical compound is replaced by another functional group
  4. A reaction in which two or more molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or methanol
  5. A chemical species that forms bonds with electrophiles by donating an electron pair
  6. Any organic chemical compound in which the atoms are connected by single, double, or triple bonds to form nonaromatic structures
  7. A formula which shows the arrangement of atoms in the molecule of a compound
  8. An organic reaction where 2+ molecules combine to form a larger one
  9. A chemical species that forms bonds with nucleophiles by accepting an electron pair

15 Clues: Aromatic hydrocarbons • An organic reaction where 2+ molecules combine to form a larger one • used in mechanisms to show the various electron pairs moving around • A formula which shows the arrangement of atoms in the molecule of a compound • A substance that enters into and is altered in the course of a chemical reaction • ...

kyndra 2021-12-02

kyndra crossword puzzle
Across
  1. This reaction has a net release of energy
  2. how quickly the concentration reactantans decreases and how quickly the concentration products increase.
  3. type of aci
  4. type of chemical reaction
  5. This reaction has a net absorption of energy.
  6. reading left to right,Balance one element at a time.
Down
  1. type of equations.
  2. A way reaction rates are affected.
  3. type of acid that don´t ionize water
  4. new colors appear when this happens to a substance.
  5. This is also known as activation energy
  6. substance that lowers the activation energy of a chemical reaction.

12 Clues: type of aci • type of equations. • type of chemical reaction • A way reaction rates are affected. • type of acid that don´t ionize water • This is also known as activation energy • This reaction has a net release of energy • This reaction has a net absorption of energy. • new colors appear when this happens to a substance. • ...

Krosword ni Kayl 2023-06-14

Krosword ni Kayl crossword puzzle
Across
  1. amount of space an object occupies
  2. also known as substitution reaction.
  3. a reaction thatinvolves the exchange of ions between two compounds and forms a new compound.
  4. According to ___ Theory, atoms or molecules of the reactants must collide for reaction to occur.
  5. This class involves the genetic materials
  6. a quantity or aggregate of matter usually of considerable size
  7. a substance that enters into and is altered in the course of a chemical reaction.
  8. Increase on the ___ area allows more collisions among reactant particles to occur.
  9. a double replacement/displacement reaction but with specific reactants and products.
  10. states that the volume of a fixed amount of gas maintained at constant pressure is directly proportional to its absolute temperature.
  11. The biomolecule that carries and transmits genetic information.
  12. Glycerol and fatty acid.
  13. The building block of carbohydrates.
  14. The rate of reactions is usually affected by the following ___ : temperature, surface area, amount of concentration of thr reactants, and presence of catalyst.
  15. Increasing the ___ of the reactant allows more molecules to react with another react.
Down
  1. states that the volume of a fixed quantity of gas maintained at constant temperature is inversely proportional to the pressure.
  2. a type of chemical reaction wherein reactants break down into simple substances.
  3. no of atoms contained in a substance
  4. The most common organic molecule because they make up most plant matter.
  5. is determined by how many times each particle hits the wall.
  6. The building block of proteins.
  7. Peptide bonds.
  8. One of the functions of proteins.
  9. Average kinetic energy of the gas particles
  10. The elements contained in carbohydrates and lipids.
  11. a substance that helps reactions to occur in a short period while keeping being unchanged at the end of the reaction.
  12. a type of chemical reaction wherein two or more substances combine to form a new substance.
  13. takes place as long as sufficient energy is present to form the bonds among atoms of molecules involved in the reaction process.
  14. Food storage in plants.
  15. the smallest particle of an element that can exist either alone or in combination

30 Clues: Peptide bonds. • Food storage in plants. • Glycerol and fatty acid. • The building block of proteins. • One of the functions of proteins. • amount of space an object occupies • also known as substitution reaction. • no of atoms contained in a substance • The building block of carbohydrates. • This class involves the genetic materials • ...

Chapter 8 2025-02-13

Chapter 8 crossword puzzle
Across
  1. exothermic reaction
  2. Absorbs heat and energy
  3. Releases heat
  4. the process of energy moving from one place or object to another
  5. a substance that takes part in a chemical reaction
  6. the ending result of a chemical reaction
Down
  1. endothermic reaction
  2. total kinetic energy
  3. heat pack
  4. cold pack

10 Clues: heat pack • cold pack • Releases heat • exothermic reaction • endothermic reaction • total kinetic energy • Absorbs heat and energy • the ending result of a chemical reaction • a substance that takes part in a chemical reaction • the process of energy moving from one place or object to another

Chemistry, by Harper Norman 2025-03-25

Chemistry, by Harper Norman crossword puzzle
Across
  1. Molecules are not evenly distributed
  2. The type of change that changes the chemical formulas of matter
  3. A substance that can react with stone
  4. A substance that causes chemical changes and creates salt water with acid
  5. The measure of how acidic or basic water is
  6. A pure substance that can’t be separated into a simpler substance and is made of one type of atom.
  7. Atoms are _____ in a chemical reaction.
  8. The type of change that only affects the physical properties of matter
  9. The final result of a chemical reaction
Down
  1. Matter that is two or more pure substances combined.
  2. The most neutral substance on the pH scale
  3. A substance that takes part in a chemical change
  4. Molecules are all mixed up evenly
  5. Atoms of two or more different elements combined
  6. Smallest unit of an element
  7. Anything that has mass and takes up space

16 Clues: Smallest unit of an element • Molecules are all mixed up evenly • Molecules are not evenly distributed • A substance that can react with stone • Atoms are _____ in a chemical reaction. • The final result of a chemical reaction • Anything that has mass and takes up space • The most neutral substance on the pH scale • The measure of how acidic or basic water is • ...

Intro to Photosynthesis 2025-11-02

Intro to Photosynthesis crossword puzzle
Across
  1. A chemical reaction during which plants convert radiant energy from the Sun to chemical energy; the reaction converts carbon dioxide and water into sugar (glucose) and oxygen
  2. A substance that takes part in and undergoes change during a chemical reaction
  3. A substance produced during a chemical reaction
  4. Type of Reaction where one or more substances change to produce one or more different substances
Down
  1. What plants absorb through their leaves to have the energy to do photosynthesis
  2. What humans breathe that plants absorb to do photosynthesis
  3. A sugar composed of six carbon atoms that is the preferred energy source for most cells; produced by photosynthesis
  4. What plants make that humans breathe
  5. What plants take in through their roots to stay alive and do photosynthesis
  6. The ability of a system to do work; required for changes to happen within a system
  7. A membrane-bound organelle in plants that is the site of photosynthesis

11 Clues: What plants make that humans breathe • A substance produced during a chemical reaction • What humans breathe that plants absorb to do photosynthesis • A membrane-bound organelle in plants that is the site of photosynthesis • What plants take in through their roots to stay alive and do photosynthesis • ...

physical science review 2024-05-03

physical science review crossword puzzle
Across
  1. The center of an atom, containing protons and neutrons.
  2. A measure of the average kinetic energy of particles in a substance. TEMPERATURE
  3. NUMBER The number of protons in an atom's nucleus, identifying its element. ATOMIC NUMBER
  4. A substance that speeds up a chemical reaction but is not consumed in the process.
  5. The state of matter with a definite shape and volume.
  6. A type of bond formed when atoms share electrons.
Down
  1. REACTION The process in which atoms rearrange to form new substances. CHEMICAL REACTION
  2. A solution that cannot dissolve more solute at a given temperature.
  3. The smallest particle of an element that retains its properties.
  4. The attraction of an atom for shared electrons in a bond.
  5. OF CONSERVATION OF MASS The principle stating that matter is neither created nor destroyed in a chemical reaction. LAW OF CONSERVATION OF MASS
  6. A substance formed by the chemical combination of two or more elements in specific proportions. COMPOUND

12 Clues: A type of bond formed when atoms share electrons. • The state of matter with a definite shape and volume. • The center of an atom, containing protons and neutrons. • The attraction of an atom for shared electrons in a bond. • The smallest particle of an element that retains its properties. • A solution that cannot dissolve more solute at a given temperature. • ...

Biology Unit 2 Crossword puzzle for Ms. Tucker 2023-01-23

Biology Unit 2 Crossword puzzle for Ms. Tucker crossword puzzle
Across
  1. A molecule that can be bonded to other identical molecules to form a polymer
  2. a specific reactant acted upon by an enzyme.
  3. a substance that speeds up the rate of a chemical reaction
  4. Building blocks of nucleic acid, made of 5 carbon sugar, phosphate, and a nitrogenous base (Adenine, Thymine, Guanine, or Cytosine).
  5. a chemical substance that takes part in and undergoes change during a reaction.
Down
  1. Amino acids are the monomers of these.
  2. A substance that has a molecular structure consisting of similar units bonded together
  3. The chemical processes that occur within a living organism in order to maintain life.
  4. A type of protein that speeds up a chemical reaction in a living thing.
  5. A compound made up of Carbon, Hydrogen, and Oxygen with a ratio of (1:2:1), main source of energy for humans.
  6. a substance produced in a chemical reaction
  7. Long term energy storage, cushioning for organs, and insulation.

12 Clues: Amino acids are the monomers of these. • a substance produced in a chemical reaction • a specific reactant acted upon by an enzyme. • a substance that speeds up the rate of a chemical reaction • Long term energy storage, cushioning for organs, and insulation. • A type of protein that speeds up a chemical reaction in a living thing. • ...

Revision 2023-12-07

Revision crossword puzzle
Across
  1. chemical symbol O
  2. what reacts together during a reaction
  3. chemically symbol He
  4. what is made during a reaction
  5. Chemical symbol Na
  6. absorbing heat energy
Down
  1. releasing heat energy
  2. chemical symbol K
  3. Another word for burning
  4. Another word breaking down
  5. Two or more elements chemically combined

11 Clues: chemical symbol O • chemical symbol K • Chemical symbol Na • chemically symbol He • releasing heat energy • absorbing heat energy • Another word for burning • Another word breaking down • what is made during a reaction • what reacts together during a reaction • Two or more elements chemically combined

8.1.5 Vocabulary 2024-09-02

8.1.5 Vocabulary crossword puzzle
Across
  1. - representation of a chemical reaction using chemical symbols, subscripts, and coefficients
  2. - produced by a chemical reaction
  3. - exchanges occur across system boundaries
  4. - number written slightly below and to the right of a chemical symbol
  5. - according to the law _____ cannot be created or destroyed
Down
  1. - number in front of a chemical formula
  2. - exchanges do not occur across boundaries
  3. - enters into a chemical reaction
  4. - to produce

9 Clues: - to produce • - produced by a chemical reaction • - enters into a chemical reaction • - number in front of a chemical formula • - exchanges do not occur across boundaries • - exchanges occur across system boundaries • - according to the law _____ cannot be created or destroyed • - number written slightly below and to the right of a chemical symbol • ...

Chemical Reactions 2013-11-19

Chemical Reactions crossword puzzle
Across
  1. Capable of being disolved or liquified.
  2. A liquid with a pH lower than 7.
  3. The process of rearanging the molecules or ionic structure.
  4. A chemical reaction accompaied by the absorbtion of heat.
  5. An indicator that changes colour when going from acid to basic solutions.
  6. The aftermath of a reaction.
  7. The principle of matter not being created or destroyed in an isolated environment.
  8. Incapable of being disolved or liquified.
  9. The main ingredient in which other substances are added.
  10. A chemical reaction in which an acid and a base interact with the formation of salt.
  11. A pair of substances that have reacted or are going to.
Down
  1. A reaction that is accomanied by heat.
  2. The law of definate proportion.
  3. Is the scale measuring the acidity or alkalinity of a solution.
  4. A substance able to corrode or rot apon contact.
  5. A reaction that happens by cause of fire, spark, friction or static.

16 Clues: The aftermath of a reaction. • The law of definate proportion. • A liquid with a pH lower than 7. • A reaction that is accomanied by heat. • Capable of being disolved or liquified. • Incapable of being disolved or liquified. • A substance able to corrode or rot apon contact. • A pair of substances that have reacted or are going to. • ...

Chemical equation and reaction 2024-09-16

Chemical equation and reaction crossword puzzle
Across
  1. hydrogen and oxygen combine to form
  2. when 1 reactant decompose to form 2 products
  3. reaction in which heat and energy are absorbed
  4. process of gaining oxygen
  5. process of losing oxygen
  6. process fat and oil get oxidized and their smell changes
Down
  1. reaction in which heat is produced
  2. when a substance like moisture attacks metal, then it is said to be _____
  3. when 2 reactants combine to form a single product
  4. insoluble substance formed during a reaction
  5. heat is represented in which shape in a reaction
  6. respiration is a _______ reaction
  7. slaked lime is used for _____
  8. the word ______ is written if a reactant or product is present as a solution in water

14 Clues: process of losing oxygen • process of gaining oxygen • slaked lime is used for _____ • respiration is a _______ reaction • reaction in which heat is produced • hydrogen and oxygen combine to form • when 1 reactant decompose to form 2 products • insoluble substance formed during a reaction • reaction in which heat and energy are absorbed • ...

Chapter 2 Vocabulary- Bryden 2017-03-09

Chapter 2 Vocabulary- Bryden crossword puzzle
Across
  1. are the species formed from chemical reactions.
  2. Reaction- a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
  3. Reaction- is a chemical reaction that releases energy by light or heat.
  4. Changes- Chemical reactions often involve changes in energy due to the breaking and formation of bonds.
  5. a substance to be deposited in solid form from a solution.
  6. rapid chemical combination of a substance with oxygen, involving the production of heat and light.
Down
  1. a substance that takes part in and undergoes change during a reaction.
  2. is a chemical reaction in which an acid and a base react quantitatively with each other.
  3. Reaction- process describes a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat.

9 Clues: are the species formed from chemical reactions. • a substance to be deposited in solid form from a solution. • a substance that takes part in and undergoes change during a reaction. • Reaction- is a chemical reaction that releases energy by light or heat. • is a chemical reaction in which an acid and a base react quantitatively with each other. • ...

Chapter 5 Enzymes 2024-12-05

Chapter 5 Enzymes crossword puzzle
Across
  1. enzyme made of
  2. enzyme digest fats/lipid/oil to glycerol and fatty acids
  3. when the substrate binds to the active site of the enzyme
  4. enzyme digest maltose to glucose
  5. each enzyme has a groove (depression) on its surface
  6. enzyme digest protein to amino acids
  7. word ending of an enzyme name
  8. effect of temperature of the rate of enzyme reaction above 60 degree Celcius
Down
  1. only substrate can fit into the active site
  2. the substance on which enzymes act
  3. effect of pH on the rate of enzyme reaction if the pH 4 or above 9
  4. a substance that can increase the rate of chemical reaction, without being chemically changed by reaction
  5. biological catalyst that can increase the rate of a chemical reaction, without being chemically changed by the reaction.
  6. the process of breaking down food molecules into smaller substances
  7. effect of temperature on the rate of enzyme reaction at low temperature
  8. enzyme digests starch to maltose
  9. the change in the three-dimensional structure of an enzyme or any other solutution protein caused by heat or chemicals.

17 Clues: enzyme made of • word ending of an enzyme name • enzyme digest maltose to glucose • enzyme digests starch to maltose • the substance on which enzymes act • enzyme digest protein to amino acids • only substrate can fit into the active site • each enzyme has a groove (depression) on its surface • enzyme digest fats/lipid/oil to glycerol and fatty acids • ...

Chapter 13 Chemical Reactions Crossword- Marissa Van Denk 2020-02-27

Chapter 13 Chemical Reactions Crossword- Marissa Van Denk crossword puzzle
Across
  1. a chemcial reaction that gives away a material but doesn't receive a material back
  2. how quickly the concentration of reactants decreases and how quickly the concentration of products increases.
  3. reaction having a net absorption of energy
  4. the amount of energy required to pull two bonded atoms apart, which is the same amount of energy released when they are brought together.
  5. a chemcial reaction that occurs when compounds trade elements or gives away an element and gets a new one back
  6. a chemical reaction that releases large amounts of energy and creates oxides. It requires oxygen.
Down
  1. one or more new compounds are formed as a result of the rearrangement of atoms
  2. reaction having a net release of energy
  3. no atoms are gained or lost during any reaction. Instead, atoms simply change partners to form new materials
  4. the minimum energy required to overcome the inital breaking of bonds in reactants.
  5. a chemical reaction that builds a bigger compound from simpler materials
  6. a chemical reaction that breaks down a compound

12 Clues: reaction having a net release of energy • reaction having a net absorption of energy • a chemical reaction that breaks down a compound • a chemical reaction that builds a bigger compound from simpler materials • one or more new compounds are formed as a result of the rearrangement of atoms • ...