chemical reaction Crossword Puzzles

Physical Science 2023-11-13

Physical Science crossword puzzle
Across
  1. mass must equal the same before and after a chemical reaction
  2. two or more atoms fused
  3. left side of a chemical equation
  4. can be physically separated
  5. letter(s) representing an element
  6. properties only observed after a chemical reaction
  7. stored energy in an object
  8. the ability a system has to function
Down
  1. matter isn't created nor destroyed
  2. a mixture blended evenly
  3. right side of a chemical equation
  4. horizontal rows of the periodic table
  5. energy can't be created or destoryed
  6. the amount of matter per unit of volume
  7. a mixture blended unevenly
  8. energy in the form of motion
  9. element symbols and subscripts representing a substance
  10. ionized gas
  11. everything and anything that has mass
  12. substance made of one atom throughout
  13. properties that can be observed before a chemical reaction
  14. smallest unit of an element
  15. organizes all known elements
  16. either an element or a compound
  17. vertical rows of the periodic table

25 Clues: ionized gas • two or more atoms fused • a mixture blended evenly • a mixture blended unevenly • stored energy in an object • smallest unit of an element • can be physically separated • energy in the form of motion • organizes all known elements • either an element or a compound • left side of a chemical equation • right side of a chemical equation • letter(s) representing an element • ...

Chemical Reactions and Equations 2024-05-14

Chemical Reactions and Equations crossword puzzle
Across
  1. a reaction where two reactants combine to form a single product
  2. bags of chips are usually filled with _________ gas
  3. a substance that undergoes a chemical change in a reaction
  4. a substance which turns from green to white when heated
  5. most reactive metal
  6. during a double displacement reaction, _____ are exchanged
  7. corrosion and rancidity are _______ reactions
  8. common name of calcium hydroxide
  9. 2Mg+O2 = 2MgO is a _______ reaction
  10. acid-metal reactions are ________ reactions
Down
  1. an insoluble solid formed during a double displacement reaction
  2. gas evolved when an acid reacts with a metal
  3. a magnesium ribbon burns in _____ colour
  4. reaction where light causes the breakdown of a subtance
  5. substance that speeds up a chemical reaction
  6. brown gas produced during the decomposition of lead nitrate
  7. CaO + H20 is a ______ reaction (exothermic/endothermic)

17 Clues: most reactive metal • common name of calcium hydroxide • 2Mg+O2 = 2MgO is a _______ reaction • a magnesium ribbon burns in _____ colour • acid-metal reactions are ________ reactions • gas evolved when an acid reacts with a metal • substance that speeds up a chemical reaction • corrosion and rancidity are _______ reactions • ...

biology definition 2026-03-03

biology definition crossword puzzle
Across
  1. process of breaking down large molecules
  2. reaction that has net release of free energy
  3. minimum energy requires to start a chemical reaction
  4. new substance formed as a result of a chemical reaction
Down
  1. reaction that absorbs free energy from surrounding
  2. active site has a fixed shape
  3. sum of all chemical reaction in cell
  4. starting substance in a chemical reaction
  5. process of making large molecules from smaller ones
  6. molecule that inhibit the activity of enzyme
  7. active site conforms the substrate
  8. non-protein molecule that helps enzyme function properly

12 Clues: active site has a fixed shape • active site conforms the substrate • sum of all chemical reaction in cell • process of breaking down large molecules • starting substance in a chemical reaction • reaction that has net release of free energy • molecule that inhibit the activity of enzyme • reaction that absorbs free energy from surrounding • ...

Enzymes 2013-11-24

Enzymes crossword puzzle
Across
  1. The name of the enzyme that breaks down starch.
  2. The conditions which are best for an enzyme reaction.
  3. A chemical process controlled by enzymes.
  4. Reaction which makes large molecules from smaller ones.
  5. Describes the enzyme after the reaction.
  6. What the enzyme reacts with.
  7. A biological catalyst.
Down
  1. Washing powder that contains enzymes.
  2. The part of the enzyme involved in the reaction.
  3. What are formed during an enzyme reaction.
  4. Enzymes only react with one substrate and so are described as this.
  5. What happens to an enzyme at high temperature.
  6. A chemical that speeds up the rate of a chemical reaction.
  7. What enzymes are made of.

14 Clues: A biological catalyst. • What enzymes are made of. • What the enzyme reacts with. • Washing powder that contains enzymes. • Describes the enzyme after the reaction. • A chemical process controlled by enzymes. • What are formed during an enzyme reaction. • What happens to an enzyme at high temperature. • The name of the enzyme that breaks down starch. • ...

Energy 2023-07-12

Energy crossword puzzle
Across
  1. A graph showing the energy change in a reaction
  2. Heat energy change measured at constant pressure
  3. A reaction which gives out heat energy to the surroundings
  4. A cell which produces electrical energy when hydrogen and oxygen react
  5. A reaction which can go both forwards and backwards
  6. The mean energy needed to break a particular type of covalent bond
  7. A negative particle found in the shells of atoms
  8. The substances reacted in a chemical reaction
  9. An example of an exothermic reaction
  10. A reaction where oxygen is added
  11. A reaction which only goes one way (forwards)
  12. The substances made in a chemical reaction
  13. Ensuring there are sufficient resources/energy for now as well as for future generations
  14. A process which is cost effective
Down
  1. Two connected electrodes placed in an electrolyte to produce a voltage
  2. A reaction where oxygen is removed
  3. A use of an exothermic reaction
  4. A measure of how much heat energy something has
  5. A reaction which takes in heat energy from the surroundings
  6. A piece of apparatus used to record the temperature
  7. Minimum energy needed for a reaction to happen when 2 particles collide
  8. Several cells connected together in series
  9. A reaction between fuel and oxygen which gives out heat energy
  10. A solution which conducts electricity

24 Clues: A use of an exothermic reaction • A reaction where oxygen is added • A process which is cost effective • A reaction where oxygen is removed • An example of an exothermic reaction • A solution which conducts electricity • Several cells connected together in series • The substances made in a chemical reaction • The substances reacted in a chemical reaction • ...

Chemical Kinetics 2023-11-19

Chemical Kinetics crossword puzzle
Across
  1. The time it takes for the reactant concentration to drop to half of the initial concentration
  2. a factor appears in the Arrhenius equation, and is related to both the collision frequency of the reactants and the orientation of the molecule at the time of collision.
  3. the minimum energy required to initiate a chemical reaction
  4. a state spotted the high point on the diagram
  5. A substance that changes the speed of a chemical reaction without undergoing a permanent chemical change itself
  6. The site of the enzyme where the catalysis occurs
  7. the number of molecules present in an elementary step
  8. a species which appears in an elementary step which is not a reactant or product
  9. A substance that speeds up a biochemical reaction but is not shown in the overall chemical reaction
  10. the reaction that if doubling the concentration causes an 2^2 increase in rate
  11. the limit value of the average rate when the time interval △t tends to zero
Down
  1. a step-by-step detailed description of a chemical reaction
  2. the average value of the change in the concentration of a substance over a period of time
  3. the molecularity of the reaction 2N2O(g) → 2N2(g)+O2(g)
  4. measured by the change in concentration with time.
  5. its total value is 2 in the equation v = k[A][B]
  6. the substance present at the transition state
  7. the reactant in the reaction catalyzed by the enzyme
  8. Reactions under this condition are limited by the area of contact of the reactants
  9. determination of the proportions (by weight or number of molecules) in which elements or compounds react with one another
  10. a coefficient in the rate equation, which is independent of the concentration of reactants, and its value can be determined experimentally
  11. Involving either all gases or all liquids
  12. any process that occurs in a single step
  13. the study of how fast chemical reactions occur.
  14. a type of RNA based enzyme which can catalyze the cleavage of other RNA
  15. molecules approach to each other and generate strong effects

26 Clues: any process that occurs in a single step • Involving either all gases or all liquids • a state spotted the high point on the diagram • the substance present at the transition state • the study of how fast chemical reactions occur. • its total value is 2 in the equation v = k[A][B] • The site of the enzyme where the catalysis occurs • ...

Photosynthesis 2022-09-26

Photosynthesis crossword puzzle
Across
  1. C6H12O6
  2. O2
  3. H2O
  4. Site of the Calvin Cycle
  5. Cell's energy currency
  6. Cell's "dead battery" molecule
  7. what is made during a chemical reaction
  8. Site of the light-dependent reaction
  9. the process by which plants transform solar energy into chemical energy
  10. Process that makes glucose
Down
  1. Process that splits water and makes ATP
  2. Organelle that performs photosynthesis
  3. what is used during a chemical reaction
  4. Light-absorbing green pigment
  5. CO2

15 Clues: O2 • H2O • CO2 • C6H12O6 • Cell's energy currency • Site of the Calvin Cycle • Process that makes glucose • Light-absorbing green pigment • Cell's "dead battery" molecule • Site of the light-dependent reaction • Organelle that performs photosynthesis • Process that splits water and makes ATP • what is used during a chemical reaction • what is made during a chemical reaction • ...

Rates of reaction 2012-12-13

Rates of reaction crossword puzzle
Across
  1. The salt formed when a metal oxide reacts with hydrochloric acid
  2. The quantity of a chemical dissolved in a set volume of solution
  3. Limewater turns this colour when carbon dioxide bubbles through it
  4. The colour of Universal Indicator in an acid
  5. The salt formed when nitric acid reacts with a metal
  6. The salt formed when sulphuric acid reacts with a metal carbonate
  7. A reaction that gives out energy to the surroundings
  8. The material Han Solo was frozen in
  9. A chemical that speeds up a chemical reaction but is not used up in the process
  10. A measure of how quickly a reaction happens
Down
  1. The test for hydrogen gas
  2. The theory that reactions happen when molecules collide
  3. Increasing this increases the area in contact with a liquid (2 words)
  4. When this compound reacts with an acid, a salt and water are formed (2 words)
  5. A reaction that takes in energy from the surroundings
  6. A compound that reacts with an acid to produce a salt, carbon dioxide and water
  7. These diagrams show the changes in energy of the reactants and the products (2 words)
  8. A factor that affects the rate of a chemical reaction
  9. A metal commonly reacted with hydrochloric acid to form hydrogen gas
  10. A measure of how acidic a solution is
  11. A substance that shows if a solution is acidic or alkaline
  12. A summary of a chemical reaction showing the reactants and products
  13. Gives off hydrogen when it reacts with a metal

23 Clues: The test for hydrogen gas • The material Han Solo was frozen in • A measure of how acidic a solution is • A measure of how quickly a reaction happens • The colour of Universal Indicator in an acid • Gives off hydrogen when it reacts with a metal • The salt formed when nitric acid reacts with a metal • A reaction that gives out energy to the surroundings • ...

DarbySmith 2013-09-20

DarbySmith crossword puzzle
Across
  1. Single-celled organisims that live in water. They are an important store of carbon or carbon sink.
  2. Hydrated iron (III) oxide.
  3. A base that dissolves in water.
  4. A green chemical found in the chloroplasts of green plants.
  5. A reaction of an acid with a base, forming a salt and water.
  6. Simple written description of what is happening in a reaction.
  7. A substance that releases hydroxide ions.
  8. Highly combustible chemicals; petrol is a mixture of this.
  9. A biological catalyst that speeds up a reaction.
  10. A way of protecting aluminium from corrsion, by deliberately creating a layer of aluminium oxides over it.
Down
  1. A black coating of silver sulfide that is produced when silver reacts with sulfur in the atmosphere; chemical formula Ag2S.
  2. A simple sugar formed by photosynthesis and used in respiration.
  3. Chemicals produced in a chemical reaction. They are written on the right-hand side of the arrow.
  4. A process in which chemicals move, caused by different concentrations of the chemical.
  5. A scale used to measure the concentration of hydrogen ions in a solution.
  6. Endothermic reaction that takes place in green plants. Uses energy from sunlight to combine water and carbon dioxide and produce glucose and oxygen gas.
  7. A chemical reaction that releases energy.
  8. A substance that releases hydrogen ions into an aqueous solution.
  9. A term used to describe materials that store carbon in their structures. Plants and animals can be thought of as carbon sinks.
  10. Rain that has acids such as nitric acid and sulfuric acid dissolved in it.

20 Clues: Hydrated iron (III) oxide. • A base that dissolves in water. • A chemical reaction that releases energy. • A substance that releases hydroxide ions. • A biological catalyst that speeds up a reaction. • Highly combustible chemicals; petrol is a mixture of this. • A green chemical found in the chloroplasts of green plants. • ...

AP Biology Unit 3 Crossword Puzzle 2024-05-24

AP Biology Unit 3 Crossword Puzzle crossword puzzle
Across
  1. a catalyst protein
  2. kinetic energy associated with random movement of atoms or molecules
  3. Covalent bonds arise when atoms of different electronegativity share two electrons unequally
  4. the region on the enzyme where the substrate binds
  5. weak attractions or interactions between molecules
  6. organic coenzyme
  7. brings chemical groups of the active site into positions that enhance their ability to catalyze the reaction
  8. energy that matter possesses because of its location or structure
  9. potential energy available for release in a chemical reaction
  10. reaction absorbs free energy from its surroundings and is nonspontaneous
  11. Ionic and covalent bonds between elements require energy to break
  12. processes occur without energy input; they can happen quickly or slowly
  13. inhibitors bind to another part of an enzyme, causing the enzyme to change shape and making the active site less effective
Down
  1. inhibitors bind to the active site of an enzyme, competing with the substrate
  2. Covalent bond between two atoms of the same element or between different elements that share electrons equally
  3. energy associated with motion
  4. the process of breaking a molecule bond with water
  5. The reactant that an enzyme acts on
  6. the study of how energy flows through living organisms
  7. a chemical agent that speeds up a reaction without being consumed by the reaction
  8. the capacity to cause change
  9. the totality of an organism’s chemical reactions
  10. Bond formed between a positive and negative charged ion
  11. nonprotein enzyme helpers
  12. cells energy cell
  13. Bond between metal atoms and non-metal atoms
  14. reaction proceeds with a net release of free energy and is spontaneous

27 Clues: organic coenzyme • cells energy cell • a catalyst protein • nonprotein enzyme helpers • the capacity to cause change • energy associated with motion • The reactant that an enzyme acts on • Bond between metal atoms and non-metal atoms • the totality of an organism’s chemical reactions • the process of breaking a molecule bond with water • ...

Electrochemistry 2019-04-09

Electrochemistry crossword puzzle
Across
  1. agent,a substance that tends to bring about reduction by being oxidized and losing electrons.
  2. structure that contains a conductive electrode and a surrounding conductive electrolyte separated by a naturally-occurring Helmholtz double layer
  3. cell,a device capable of generating energy from chemical reactions or using energy to cause chemical reactions
  4. chemical reaction that involves the gaining of electrons by one of the atoms involved in the reaction
  5. decomposition produced by passing an electric current through a liquid or solution containing ions
  6. degradation of metal, stone, etc. due to a chemical or electrochemical reaction
  7. oxidation or reduction reaction component of a redox reaction
  8. process of using electrolysis to increase the purity of a metal extracted from its ore
  9. agent,a substance that tends to bring about oxidation by being reduced and gaining electrons
Down
  1. cell,a cell in which electrolysis occurs
  2. SI unit of electromotive force
  3. process of oxidizing
  4. a metal object by electrolytic deposition with chromium, silver, etc.
  5. protection,a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell
  6. titration,a type of titration based on a redox reaction between the analyte and the titrant
  7. number,a number assigned to an element in chemical combination which represents the number of electrons lost or gained by an atom of that element in the compound
  8. conductor through which electricity enters or leaves in an object, substance, or region
  9. law,states that when the magnetic flux linking a circuit changes, and electromotive force is induced in the circuit proportional to the rate of change of the flux linkage

18 Clues: process of oxidizing • SI unit of electromotive force • cell,a cell in which electrolysis occurs • oxidation or reduction reaction component of a redox reaction • a metal object by electrolytic deposition with chromium, silver, etc. • degradation of metal, stone, etc. due to a chemical or electrochemical reaction • ...

Types of Reactions 2024-05-05

Types of Reactions crossword puzzle
Across
  1. An element of a compound is replaced by another element
  2. Release of heat
  3. Absorption of heat
  4. Synonym of Combination reaction
  5. Provide unpleasant odour to foods
  6. Substance that changes in a reaction
  7. Exchange of ions
  8. Multiple reactants and a single product
  9. Addition of oxygen
  10. Chemical reaction expressed in words
Down
  1. Single reactant and multiple products
  2. Symbolic representation of a chemical reaction
  3. Substance that speeds up a reaction
  4. Removal of oxygen
  5. Gradual deterioration of materials

15 Clues: Release of heat • Exchange of ions • Removal of oxygen • Absorption of heat • Addition of oxygen • Synonym of Combination reaction • Provide unpleasant odour to foods • Gradual deterioration of materials • Substance that speeds up a reaction • Substance that changes in a reaction • Chemical reaction expressed in words • Single reactant and multiple products • ...

Physical Science Chapter 7A 2025-11-19

Physical Science Chapter 7A crossword puzzle
Across
  1. gas release showing evidence of chemical change
  2. coefficients ___ the equation
  3. formed during a chemical reaction
  4. evidence of chemical change found in eggs producing hydrogen sulfide gas
  5. solid forming from liquids mixing together
  6. 4Fe + ___O2 🡪 2Fe2O3
  7. N2 + 3H2 🡪 ___NH3
  8. number placed in front of a chemical formula
Down
  1. indicates the number of atoms of that element
  2. chemical ____: process that rearranges the atoms in one or more substances into one or more new substances
  3. releasing or absorbing energy is often found as a ____ change
  4. chemical evidence of wood turning to ash is a ___ change
  5. product in this equation: 2H2 + O2 🡪 2H2O
  6. enters into a chemical reaction

14 Clues: N2 + 3H2 🡪 ___NH3 • 4Fe + ___O2 🡪 2Fe2O3 • coefficients ___ the equation • enters into a chemical reaction • formed during a chemical reaction • product in this equation: 2H2 + O2 🡪 2H2O • solid forming from liquids mixing together • number placed in front of a chemical formula • indicates the number of atoms of that element • gas release showing evidence of chemical change • ...

Chemical Compounds 2016-01-16

Chemical Compounds crossword puzzle
Across
  1. when a compounds' shape IS symmetrical.
  2. A number or symbol multiplied with a variable.
  3. Substance that changes in a chemical reaction.
  4. Shape of H2O.
  5. Shape of CH4.
  6. Zn + 2HCl -> ZnCl2 + H2
  7. Shape of BeH2.
  8. C2H3O2 -> CO2 + H2O
  9. Symbolic representation of a chemical reaction.
  10. When a compounds' shape is NOT symmetrical.
  11. A single hydrogen atom is one of these.
  12. 2NaCl -> 2Na + Cl2
  13. A lasting attraction between atoms.
  14. Br2, I2, N2, Cl2, H2, O2, F2
  15. Substance that is formed ion a chemical reaction.
Down
  1. Ag, Zn, Al are examples of this.
  2. Shape of BBr3.
  3. Na + Cl -> NaCl
  4. A useful guide for predicting products of metal displacement.
  5. HCl + AgNO3 -> AgCl + HNO3
  6. Shape of NCl3.
  7. When an elements' charge is reduced in a chemical equation.
  8. Physical property.
  9. When an elements' charge is increased in a chemical equation.
  10. Zncl2 is an example of this.
  11. The type of bond formed when Zn(NO3)2 is produced.
  12. The type of bond formed in NaCl.

27 Clues: Shape of H2O. • Shape of CH4. • Shape of BBr3. • Shape of NCl3. • Shape of BeH2. • Na + Cl -> NaCl • Physical property. • 2NaCl -> 2Na + Cl2 • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Zncl2 is an example of this. • Br2, I2, N2, Cl2, H2, O2, F2 • Ag, Zn, Al are examples of this. • The type of bond formed in NaCl. • A lasting attraction between atoms. • ...

Chemical Compounds 2016-01-16

Chemical Compounds crossword puzzle
Across
  1. Ag, Zn, Al are examples of this.
  2. Br2, I2, N2, Cl2, H2, O2, F2
  3. Shape of H2O.
  4. Na + Cl -> NaCl
  5. A single hydrogen atom is one of these.
  6. When an elements' charge is increased in a chemical equation.
  7. Shape of NCl3.
  8. A useful guide for predicting products of metal displacement.
  9. Zn + 2HCl -> ZnCl2 + H2
  10. Substance that changes in a chemical reaction.
  11. Symbolic representation of a chemical reaction.
  12. A number or symbol multiplied with a variable.
  13. Shape of CH4.
  14. The type of bond formed in NaCl.
  15. When a compounds' shape is NOT symmetrical.
  16. when a compounds' shape IS symmetrical.
  17. Physical property.
  18. A lasting attraction between atoms.
Down
  1. 2NaCl -> 2Na + Cl2
  2. C2H3O2 -> CO2 + H2O
  3. HCl + AgNO3 -> AgCl + HNO3
  4. Substance that is formed ion a chemical reaction.
  5. Shape of BBr3.
  6. The type of bond formed when Zn(NO3)2 is produced.
  7. When an elements' charge is reduced in a chemical equation.
  8. Zncl2 is an example of this.
  9. Shape of BeH2.

27 Clues: Shape of H2O. • Shape of CH4. • Shape of NCl3. • Shape of BBr3. • Shape of BeH2. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • Physical property. • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Br2, I2, N2, Cl2, H2, O2, F2 • Zncl2 is an example of this. • Ag, Zn, Al are examples of this. • The type of bond formed in NaCl. • A lasting attraction between atoms. • ...

Chemical Compounds 2016-01-16

Chemical Compounds crossword puzzle
Across
  1. Br2, I2, N2, Cl2, H2, O2, F2
  2. A single hydrogen atom is one of these.
  3. C2H3O2 -> CO2 + H2O
  4. A lasting attraction between atoms.
  5. 2NaCl -> 2Na + Cl2
  6. Physical property.
  7. HCl + AgNO3 -> AgCl + HNO3
  8. Shape of NCl3.
  9. A useful guide for predicting products of metal displacement.
  10. Shape of BBr3.
Down
  1. The type of bond formed in NaCl.
  2. Substance that is formed ion a chemical reaction.
  3. Shape of H2O.
  4. Symbolic representation of a chemical reaction.
  5. Shape of CH4.
  6. A number or symbol multiplied with a variable.
  7. Substance that changes in a chemical reaction.
  8. The type of bond formed when Zn(NO3)2 is produced.
  9. Zn + 2HCl -> ZnCl2 + H2
  10. Ag, Zn, Al are examples of this.
  11. When a compounds' shape is NOT symmetrical.
  12. When an elements' charge is increased in a chemical equation.
  13. Na + Cl -> NaCl
  14. Zncl2 is an example of this.
  15. Shape of BeH2.
  16. when a compounds' shape IS symmetrical.
  17. When an elements' charge is reduced in a chemical equation.

27 Clues: Shape of H2O. • Shape of CH4. • Shape of NCl3. • Shape of BeH2. • Shape of BBr3. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • Physical property. • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Br2, I2, N2, Cl2, H2, O2, F2 • Zncl2 is an example of this. • The type of bond formed in NaCl. • Ag, Zn, Al are examples of this. • A lasting attraction between atoms. • ...

Unit 2 Camden Ahrens 2023-04-04

Unit 2 Camden Ahrens crossword puzzle
Across
  1. the diffusion of water
  2. when the active site gets misshapen because of temperature or other factors
  3. organs that work together as a unit in the body
  4. protein that speeds up chemical reactions
  5. the building block of all matter
  6. transport things in and out of the cell with energy
  7. where the enzyme binds to the substrate for the chemical reaction
  8. structures that perform specific jobs in the cell
  9. the energy needed to initiate a chemical reaction
  10. water loving
Down
  1. decides what goes in and out
  2. transport things in and out of the cell without energy
  3. enzyme binds to this for the chemical reactions
  4. the spreading of something
  5. made up of one of more atoms
  6. tissues that perform a specific function in the body
  7. what you get after the enzyme's chemical reaction
  8. a living thing
  9. a group of cells that do a job for the organism
  10. cell membrane is made of these
  11. hates water
  12. building block of all living things

22 Clues: hates water • water loving • a living thing • the diffusion of water • the spreading of something • decides what goes in and out • made up of one of more atoms • cell membrane is made of these • the building block of all matter • building block of all living things • protein that speeds up chemical reactions • organs that work together as a unit in the body • ...

Ch. 8 Chemistry Crossword 2014-01-11

Ch. 8 Chemistry Crossword crossword puzzle
Across
  1. An equation for a reaction in solution showing all strong electrolytes as ions
  2. A chemical change in which two or more substances react to form a single new substance
  3. A chemical change that involves an exchange of positive ions between two compounds
  4. A chemical change in which oxygen reacts with another substance which often produces energy in the forn of heat and light
  5. A chemical change in which a single compound is broken down into two or more simpler products
Down
  1. A chemical equation that does not indicate the relative amounts of reactants and products
  2. A chemical equation in which mass is conserved and each side of the equation has the same number of atoms of each element
  3. A chemical change in which one element replaces a second element in a compound
  4. Shows number and type of atoms present in the smallest representative unit of a substance
  5. A small whole number that appears in front of a formula in a balanced chemical equation
  6. An ion that is not directly involved in a chemical reaction
  7. A table listing metals in order of decreasing activity
  8. An equation for a reaction in solution showing only those particles that are directly involved in the chemical change
  9. An expression representing a chemical reaction
  10. A substance that increases the rate of reaction by lowering the activation-energy barrier

15 Clues: An expression representing a chemical reaction • A table listing metals in order of decreasing activity • An ion that is not directly involved in a chemical reaction • A chemical change in which one element replaces a second element in a compound • An equation for a reaction in solution showing all strong electrolytes as ions • ...

Chemical Reaction Terms HCL 2024-10-25

Chemical Reaction Terms HCL crossword puzzle
Across
  1. a process in which some substances change into different substances
  2. more energy is used to break bonds in reactants than is released when bonds form in products
  3. the simplest form of matter that has a unique set of properties
  4. a force of attraction between atoms or ions
  5. the force of attraction that holds together two nonmetal atoms that share a pair of electrons
  6. substances that are produced in the reaction
  7. a reaction that occurs when two or more reactants combine to form a single product
  8. substances that start a chemical reaction
  9. a unique substance that forms when two or more elements combine chemically
Down
  1. state of matter in which particles are free to slide past one another but stay close
  2. a reaction that occurs when elements switch places in compounds
  3. the force of attraction that holds together oppositely charged ions
  4. more energy is released when bonds form in products than is used to break bonds in reactants
  5. a reaction that occurs when one reactant breaks down into two or more products
  6. a substance that increases the rate of a chemical reaction
  7. state of matter in which particles are free to move about their container
  8. a mixture of a metal with one or more other elements
  9. state of matter in which particles are locked in place

18 Clues: substances that start a chemical reaction • a force of attraction between atoms or ions • substances that are produced in the reaction • a mixture of a metal with one or more other elements • state of matter in which particles are locked in place • a substance that increases the rate of a chemical reaction • ...

Chemical reactions 2021-06-18

Chemical reactions crossword puzzle
Across
  1. The process by which the atoms of one or more substances are rearranged to form different substances
  2. more substances react to produce a single product
  3. involves an exchange of ions between two compounds
  4. a single compound breaks
  5. a chemical reaction in which two
Down
  1. oxygen combines with a substance and
  2. a single compound breaks
  3. a statement that uses
  4. involved in a chemical reaction.
  5. formulas to show the identities and relative amounts of the
  6. into two or more elements or new compounds.
  7. The substances formed during a chemical reaction
  8. The starting substances of a chemical reaction
  9. into two or more elements or new compounds.
  10. The number written in front of a reactant or product
  11. energy in the form of heat and light.

16 Clues: a statement that uses • a single compound breaks • a single compound breaks • involved in a chemical reaction. • a chemical reaction in which two • oxygen combines with a substance and • energy in the form of heat and light. • into two or more elements or new compounds. • into two or more elements or new compounds. • The starting substances of a chemical reaction • ...

Percent Yield 2013-04-05

Percent Yield crossword puzzle
Across
  1. /A ratio between the amounts in moles of any two compounds involved in a chemical reaction
  2. /A mathematical determination of the size or number of somethingreactant /Starting material in a chemical reaction.
  3. /A method for comparing the dimensions of the physical quantities occurring in a problem to find relationships between the quantities without having to solve the problem completely.
  4. /Relationship between two variables when their ratio is equal to a constant value.
  5. /Starting material in a chemical reaction.
  6. /Calculation of the actual yield over the theoretical yield multiplied by 100 and represented as a percent.
  7. /Values that are directly proportional to each other
  8. /The amount of actual product created
Down
  1. /Ideal yield that would be produced if every atom involved in the reaction reacted with all other atoms.
  2. /The number in front of an element
  3. /An equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products
  4. /The mass of one mole of a substance.
  5. /A method in chemistry that describes numerical relationships in chemical reactions using conversion factors
  6. /The relative size of two quantities expressed as the quotient of one divided by the other.
  7. /The ending material in a chemical reaction .

15 Clues: /The number in front of an element • /The mass of one mole of a substance. • /The amount of actual product created • /Starting material in a chemical reaction. • /The ending material in a chemical reaction . • /Values that are directly proportional to each other • /Relationship between two variables when their ratio is equal to a constant value. • ...

Macromolecules of Life Crossword Puzzle 2020-12-11

Macromolecules of Life Crossword Puzzle crossword puzzle
Across
  1. fats, oils and waxes
  2. energy carrying molecule
  3. means to split with water
  4. a single sugar molecule
  5. starches and sugars
  6. the double-stranded nucleic acid that is the instructions for building proteins
  7. many sugars
  8. the building blocks of proteins
  9. a large organic molecule composed of smaller molecules
  10. a protein that speeds up chemical reactions in a living thing
  11. ending materials in a chemical reaction
Down
  1. the reactant an enzyme changes
  2. starting material in a chemical reaction
  3. a long molecule made of monomers
  4. a chemical reaction that uses the removal of water to put molecules together
  5. monomer of nucleic acids
  6. a process that combines monomers into polymers
  7. word used to describe carbon-based molecules
  8. a polymer made of amino acids
  9. changes one set of chemical into another
  10. two sugars
  11. a single molecule that can be bonded together to form a polymer
  12. molecules that transmit hereditary information
  13. a single stranded nucleic acid

24 Clues: two sugars • many sugars • starches and sugars • fats, oils and waxes • a single sugar molecule • monomer of nucleic acids • energy carrying molecule • means to split with water • a polymer made of amino acids • the reactant an enzyme changes • a single stranded nucleic acid • the building blocks of proteins • a long molecule made of monomers • ending materials in a chemical reaction • ...

Energy Change & Rates of Reactions 2021-04-03

Energy Change & Rates of Reactions crossword puzzle
Across
  1. Heat of reaction for burning one mole of a substance.
  2. Chemical or physical change occurs "naturally".
  3. C value in certain equations.
  4. Mathematical expression obtained by comparing reaction rates with reactant concentrations.
  5. To separate a substance into simpler compounds. Type of Change.
  6. Minimum energy that a reactant molecule must possess to have a successful reaction.
  7. The law of ___ states energy cannot be created or destroyed.
  8. A Branch of chemistry, that deals with the relations of heat and chemical reactions.
Down
  1. A theory that chemical reactions can occur only if the reactants collide with proper orientation.
  2. When the rate is increasing.
  3. Thermodynamic equation used for calculating changes in the Gibbs energy of a system.
  4. Total amount of thermal energy in a system or substance.
  5. A substance that can alter the rate of a chemical reaction.
  6. The reaction or substance changing.
  7. An equation that is needed to be successful with Hess's Law.
  8. Measurement of the heat flow out of or into the system
  9. When two molecules combine to form a larger molecule and a small molecule.
  10. To make (a liquid) thinner or less strong by adding another liquid.
  11. A measure of the molecular disorder, or randomness, of a system.
  12. Multi-step process used when a reaction cannot be done in a calorimeter.
  13. ΔH is greater than Zero.

21 Clues: ΔH is greater than Zero. • When the rate is increasing. • C value in certain equations. • The reaction or substance changing. • Chemical or physical change occurs "naturally". • Heat of reaction for burning one mole of a substance. • Measurement of the heat flow out of or into the system • Total amount of thermal energy in a system or substance. • ...

Matter Unit 1 - Properties of Matter 2023-08-13

Matter Unit 1 - Properties of Matter crossword puzzle
Across
  1. chemical property where a element has the ability to react with an acid
  2. amount of mass in a volume
  3. anything that has mass and has a volume
  4. substance that is not identical throughout
  5. temperature at which a liquid becomes a gas or vapor
  6. substance in which a solute dissolves to produce a homogeneous mixture
  7. substance is identical throughout
  8. chemical reaction in a substance that has a low flashpoint and can ignite and burn easily
  9. characteristic that can be observed and measured without changing the chemical identity of a substance
  10. amount of a given substance that can be dissolved in a certain amount of solvent
  11. solution that is unable to absorb or dissolve any more of a solute at a given temperature and pressure
  12. resistance to flow of a fluid
  13. substance that dissolves in a solvent to produce a homogeneous mixture
  14. amount of space an object takes up
Down
  1. measure of the ease at which an electric charge or heat can pass through a material
  2. temperature at which a liquid becomes a solid
  3. amount of matter in an object
  4. chemical reaction breaking down substances into simpler substances
  5. chemical reaction when a substance comes into contact with oxygen
  6. properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter
  7. chemical reaction in a substance that has a high flashpoint, and must have a flame in order to ignite and burn
  8. process in which a solid is eaten away and changed by a chemical reaction
  9. temperature at which a solid becomes a liquid

23 Clues: amount of mass in a volume • amount of matter in an object • resistance to flow of a fluid • substance is identical throughout • amount of space an object takes up • anything that has mass and has a volume • substance that is not identical throughout • temperature at which a liquid becomes a solid • temperature at which a solid becomes a liquid • ...

Chemical Reactions Revision 2022-08-25

Chemical Reactions Revision crossword puzzle
Across
  1. The product of hydrochloric acid and copper carbonate
  2. The colour of a base
  3. Covalently bonded elements (same element - a molecule)
  4. To burn
  5. A form of combustion that burns with a clean flame and the products are CO2 and H2O
  6. A reaction in which one element or radical takes the place of another element or radical in a compound (A + BC --> AC + B)
  7. Bitter and low pH
  8. A number placed in front of an element, symbol or chemical formula in an equation
  9. A reaction in which two or more substances combine to form one new compound (also called a synthesis reaction)
  10. The colour of an acid
  11. A compound that contains carbon and is able to form a bond with hydrogen
  12. A reaction where a more complex molecule breaks down to form two or more simpler products
Down
  1. The law that mass is neither created or destroyed which is the reason chemical reactions are balanced
  2. Tells you how many atoms of each element are in a molecule
  3. Involves two non-metal atoms and share electrons to make outermost shells of both full (neither can take the electrons)
  4. A chemical reaciton in real life. It is the reaction that happens in the plant so it can breathe and allows us to breathe
  5. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  6. A form of combustion that burns with a smokey flame and has insufficient oxygen
  7. Different elements e.g. H2O
  8. Is sour and can burn
  9. A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
  10. doesn't contain carbon and can't form a bond with hydrogen
  11. A reaction where the products are water and salt
  12. An insoluble solid that is formed from the reaction between solutions
  13. The things that make up everything

25 Clues: To burn • Bitter and low pH • The colour of a base • Is sour and can burn • The colour of an acid • Different elements e.g. H2O • The things that make up everything • A reaction where the products are water and salt • The product of hydrochloric acid and copper carbonate • Covalently bonded elements (same element - a molecule) • ...

Enzyme Crossword Sabinske 2023-08-25

Enzyme Crossword Sabinske crossword puzzle
Across
  1. where reactants bind on an enzyme (two words)
  2. either can cause an enzyme to change (three words)
  3. BLANK is made by living cells to speed up a reaction
  4. important factor in determining if a reaction will occur
  5. what plants use for energy
  6. what animals use for energy
  7. reactants in a enzyme-catalyst reaction are known as
  8. compounds engaging in the reaction
Down
  1. amount of energy needed to start a reaction
  2. These can switch an enzyme on or off
  3. can be released as heat, light or sound
  4. compounds produced from the reaction
  5. two things conserved in a reaction (three words)
  6. process that changes one set of compounds into another
  7. catalyst BLANK the activation energy needed
  8. biological catalysts
  9. Pepsin works best in what condition?

17 Clues: biological catalysts • what plants use for energy • what animals use for energy • compounds engaging in the reaction • These can switch an enzyme on or off • compounds produced from the reaction • Pepsin works best in what condition? • can be released as heat, light or sound • amount of energy needed to start a reaction • catalyst BLANK the activation energy needed • ...

Chemical Reactions and Equations 2024-05-14

Chemical Reactions and Equations crossword puzzle
Across
  1. a reaction where two reactants combine to form a single product
  2. bags of chips are usually filled with _________ gas
  3. a substance that undergoes a chemical change in a reaction
  4. a substance which turns from green to white when heated
  5. most reactive metal
  6. during a double displacement reaction, _____ are exchanged
  7. corrosion and rancidity are _______ reactions
  8. common name of calcium hydroxide
  9. 2Mg+O2 = 2MgO is a _______ reaction
  10. acid-metal reactions are ________ reactions
Down
  1. an insoluble solid formed during a double displacement reaction
  2. gas evolved when an acid reacts with a metal
  3. a magnesium ribbon burns in _____ colour
  4. reaction where light causes the breakdown of a subtance
  5. substance that speeds up a chemical reaction
  6. brown gas produced during the decomposition of lead nitrate
  7. CaO + H20 is a ______ reaction (exothermic/endothermic)

17 Clues: most reactive metal • common name of calcium hydroxide • 2Mg+O2 = 2MgO is a _______ reaction • a magnesium ribbon burns in _____ colour • acid-metal reactions are ________ reactions • gas evolved when an acid reacts with a metal • substance that speeds up a chemical reaction • corrosion and rancidity are _______ reactions • ...

Chemical Reactions and Equations 2024-05-14

Chemical Reactions and Equations crossword puzzle
Across
  1. a reaction where two reactants combine to form a single product
  2. bags of chips are usually filled with _________ gas
  3. a substance that undergoes a chemical change in a reaction
  4. a substance which turns from green to white when heated
  5. most reactive metal
  6. during a double displacement reaction, _____ are exchanged
  7. corrosion and rancidity are _______ reactions
  8. common name of calcium hydroxide
  9. 2Mg+O2 = 2MgO is a _______ reaction
  10. acid-metal reactions are ________ reactions
Down
  1. an insoluble solid formed during a double displacement reaction
  2. gas evolved when an acid reacts with a metal
  3. a magnesium ribbon burns in _____ colour
  4. reaction where light causes the breakdown of a subtance
  5. substance that speeds up a chemical reaction
  6. brown gas produced during the decomposition of lead nitrate
  7. CaO + H20 is a ______ reaction (exothermic/endothermic)

17 Clues: most reactive metal • common name of calcium hydroxide • 2Mg+O2 = 2MgO is a _______ reaction • a magnesium ribbon burns in _____ colour • acid-metal reactions are ________ reactions • gas evolved when an acid reacts with a metal • substance that speeds up a chemical reaction • corrosion and rancidity are _______ reactions • ...

Chemical Reactions and Equations 2024-05-14

Chemical Reactions and Equations crossword puzzle
Across
  1. reaction where light causes the breakdown of a subtance
  2. acid-metal reactions are ________ reactions
  3. a substance which turns from green to white when heated
  4. a substance that undergoes a chemical change in a reaction
  5. brown gas produced during the decomposition of lead nitrate
  6. substance that speeds up a chemical reaction
  7. during a double displacement reaction, _____ are exchanged
  8. CaO + H20 is a ______ reaction (exothermic/endothermic)
Down
  1. an insoluble solid formed during a double displacement reaction
  2. gas evolved when an acid reacts with a metal
  3. a reaction where two reactants combine to form a single product
  4. common name of calcium hydroxide
  5. bags of chips are usually filled with _________ gas
  6. corrosion and rancidity are _______ reactions
  7. a magnesium ribbon burns in _____ colour
  8. most reactive metal
  9. 2Mg+O2 = 2MgO is a _______ reaction

17 Clues: most reactive metal • common name of calcium hydroxide • 2Mg+O2 = 2MgO is a _______ reaction • a magnesium ribbon burns in _____ colour • acid-metal reactions are ________ reactions • gas evolved when an acid reacts with a metal • substance that speeds up a chemical reaction • corrosion and rancidity are _______ reactions • ...

Chemistry! 2023-12-09

Chemistry! crossword puzzle
Across
  1. Crystal shapes that are geometric and uniform
  2. Any property that can only be observed during a chemical reaction
  3. A substance that dissolves in a solvent
  4. The substances present at the start of a chemical reaction
  5. A substance in which something is dissolved
  6. A cavity in a rock lined with crystals
  7. The phase in the column that does move with the sample. Can be a gas or a liquid.
  8. A property of a crystal that gives it a flat surface
  9. The process of making polymers
  10. Substance that can taste sour and has a pH less than 7
  11. A chemical process scientists use to separate and analyze different parts of a mixture
  12. Process by which large crystals form from their solutions
Down
  1. The process of gaining an electron in a chemical reaction
  2. A combination of 2 or more substances, where each individual substance maintains its original chemical property
  3. Smaller molecules that come together to form a larger molecule
  4. The substances formed by the reaction
  5. A ruler for acidity and basicity
  6. Any property that can be observed using the five senses or can be measured without changing the matter
  7. The substance that is to be separated from the mixture
  8. A mixture in which one substance dissolves into another
  9. The phase in the column that doesn’t move with the sample. Usually a porous solid
  10. Substance that can feel slippery and has a pH more than 7
  11. The process of losing an electron in a chemical reaction
  12. Very big molecule made up of smaller molecules arranged in a repeating pattern

24 Clues: The process of making polymers • A ruler for acidity and basicity • The substances formed by the reaction • A cavity in a rock lined with crystals • A substance that dissolves in a solvent • A substance in which something is dissolved • Crystal shapes that are geometric and uniform • A property of a crystal that gives it a flat surface • ...

Chemistry 2024-06-07

Chemistry crossword puzzle
Across
  1. Substance that speeds up a chemical reaction
  2. Atoms of the same element with different numbers of neutrons
  3. Basic unit of a chemical element
  4. Product of an acid-base reaction
  5. Two or more atoms bonded together
  6. Electrons in the outer shell of an atom
  7. Positively charged particle
  8. Substance dissolved in a solvent
  9. Substance that donates protons
  10. Substance composed of two or more elements
Down
  1. Pure substance consisting of one type of atom
  2. Substance that accepts protons
  3. Process of chemical change
  4. Substance that dissolves a solute
  5. Neutral particle in the nucleus
  6. Table of elements
  7. Atom or molecule with a net electric charge
  8. Negatively charged particle
  9. Connection between atoms
  10. Measure of acidity or basicity

20 Clues: Table of elements • Connection between atoms • Process of chemical change • Negatively charged particle • Positively charged particle • Substance that accepts protons • Substance that donates protons • Measure of acidity or basicity • Neutral particle in the nucleus • Basic unit of a chemical element • Product of an acid-base reaction • Substance dissolved in a solvent • ...

biology definition 2026-03-03

biology definition crossword puzzle
Across
  1. process of breaking down large molecules
  2. reaction that has net release of free energy
  3. minimum energy requires to start a chemical reaction
  4. new substance formed as a result of a chemical reaction
Down
  1. reaction that absorbs free energy from surrounding
  2. active site has a fixed shape
  3. sum of all chemical reaction in cell
  4. starting substance in a chemical reaction
  5. process of making large molecules from smaller ones
  6. molecule that inhibit the activity of enzyme
  7. active site conforms the substrate
  8. non-protein molecule that helps enzyme function properly

12 Clues: active site has a fixed shape • active site conforms the substrate • sum of all chemical reaction in cell • process of breaking down large molecules • starting substance in a chemical reaction • reaction that has net release of free energy • molecule that inhibit the activity of enzyme • reaction that absorbs free energy from surrounding • ...

biology definition 2026-03-03

biology definition crossword puzzle
Across
  1. reaction that absorbs free energy from surrounding
  2. active site has a fixed shape
  3. minimum energy requires to start a chemical reaction
  4. sum of all chemical reaction in cell
  5. process of making large molecules from smaller ones
Down
  1. non-protein molecule that helps enzyme function properly
  2. new substance formed as a result of a chemical reaction
  3. starting substance in a chemical reaction
  4. molecule that inhibit the activity of enzyme
  5. reaction that has net release of free energy
  6. process of breaking down large molecules
  7. active site conforms the substrate

12 Clues: active site has a fixed shape • active site conforms the substrate • sum of all chemical reaction in cell • process of breaking down large molecules • starting substance in a chemical reaction • molecule that inhibit the activity of enzyme • reaction that has net release of free energy • reaction that absorbs free energy from surrounding • ...

Chemical reactions crossword puzzle 2022-01-05

Chemical reactions crossword puzzle crossword puzzle
Across
  1. Piece of an atom with no charge
  2. Chemical symbol Fe
  3. substance made from different elements
  4. type of reaction which absorbs energy
  5. Negatively charged piece of an atom
  6. chemical symbol K
Down
  1. substance found on the right side of a chemical equation
  2. Substance made of only one type of atom
  3. substance found on the left side of a chemical equation
  4. Type of reaction which releases energy
  5. "law of conservation of..."
  6. chemical formula H2O
  7. positively charged piece of an atom
  8. released from a reaction when we notice a smell

14 Clues: chemical symbol K • Chemical symbol Fe • chemical formula H2O • "law of conservation of..." • Piece of an atom with no charge • positively charged piece of an atom • Negatively charged piece of an atom • type of reaction which absorbs energy • substance made from different elements • Type of reaction which releases energy • Substance made of only one type of atom • ...

Lesson 4 Crossword 2022-10-28

Lesson 4 Crossword crossword puzzle
Across
  1. a term that means potential for hydrogen
  2. the substances you start with in a chemical reaction
  3. when heat energy is absorbed during a chemical reaction TWO WORDS
  4. molecules arranged in ling chains of lots of repeating small molecules
  5. a reaction that doesn't change the molecules of a substance but changes how the substance looks and sometimes its state TWO WORDS
  6. a substance that speeds up a chemical reaction without being used up in the process
  7. solids that have a regular, repeating arrangement of atoms
  8. when two or more chemical substances interact with each other and change into different chemical substances TWO WORDS
Down
  1. a type of polymer that is hard to break and can be recycled
  2. the chemical opposite of an acid
  3. when heat energy is released during a chemical reaction TWO WORDS
  4. valuable crystals often used to make jewelry
  5. a base that works against the acid upsetting your stomach
  6. a substance that tastes sour, conducts electricity, ruins metals and donates hydrogen ions

14 Clues: the chemical opposite of an acid • a term that means potential for hydrogen • valuable crystals often used to make jewelry • the substances you start with in a chemical reaction • a base that works against the acid upsetting your stomach • solids that have a regular, repeating arrangement of atoms • a type of polymer that is hard to break and can be recycled • ...

Chemistry and Physics Lesson 4 2017-08-16

Chemistry and Physics Lesson 4 crossword puzzle
Across
  1. Molecules arranged in long chains of lots of repeating small molecules
  2. When heat energy is absorbed during a chemical reaction TWO WORDS
  3. The substances you start with in a chemical reaction
  4. When two or more chemical substances interact with each other and change into different chemical substances TWO WORDS
  5. Solids that have a regular, repeating arrangement of atoms
  6. A term that means potential for hydrogen
  7. A base that works against the acid upsetting your stomach
Down
  1. When heat energy is released during a chemical reaction TWO WORDS
  2. A reaction that doesn't change the molecules of substance but changed how the substance looks and sometimes its state TWO WORDS
  3. the chemical opposite of an acid
  4. A substance that tastes sour, conducts electricity, ruins metals, and donates hydrogen ions
  5. Valuable crystals often used to make jewelry
  6. A substance that speeds up a chemical reaction without being used up in the process
  7. A type of polymer that is hard to break and can be recycled

14 Clues: the chemical opposite of an acid • A term that means potential for hydrogen • Valuable crystals often used to make jewelry • The substances you start with in a chemical reaction • A base that works against the acid upsetting your stomach • Solids that have a regular, repeating arrangement of atoms • A type of polymer that is hard to break and can be recycled • ...

Science Vocab 2016-12-09

Science Vocab crossword puzzle
Across
  1. a chemical bond that involves the sharing of electron pairs between atoms
  2. the law that the properties of the elements are periodic functions of their atomic numbers
  3. the total number of protons and neutrons
  4. a substance that takes part in and undergoes change during a reaction
  5. properties are intermediate between those of metals and solid nonmetals. They are electrical semiconductors.
  6. a non solid material
  7. can include changing the color, shape, state of matter, or volume of a substance.
  8. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
  9. when two ions bond
  10. a particle smaller than an atom
  11. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  12. is energy stored in the bonds
  13. single column
  14. a combination of two or more pure substances
  15. characteristic of something
  16. a stable subatomic particle occurring in all atomic nucle
  17. positive charged core of an atom
  18. does not depend on that of another
  19. type of chemical reaction where two compounds react, and the positive ions and the negative ions of the two reactants switch places
  20. an exothermic reaction in which something reacts with oxygen
  21. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  22. absorbs
  23. a substance consisting of atoms which all have the same number of protons
  24. a quantity obtained by multiplying quantities together
  25. legally sound, effective, or binding
  26. smallest form of an element
  27. a solid material
  28. a stable subatomic particle with a charge of negative electricity
  29. the bond between two chemicals
  30. a material system made up of two or more different substances
Down
  1. a tryout or experiment to test quality, value, or usefulness
  2. a molecular ion, is a charged chemical species
  3. quantity that is unknown but assumed to have a fixed value in a specified mathematical context
  4. substance a definite and constant composition
  5. a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
  6. total number of protons and neutron is a neucleus
  7. equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side
  8. chemical rule of thumb that reflects observation that atoms of main-group elements tend to combine
  9. is a type of chemical reaction where one element replaces another element in a compound.
  10. designed to minimize the effects of variables other than the independent variable
  11. puts out
  12. a set of chemical symbols showing the elements present in a compound and their relative proportions
  13. chemical reaction in which a single compound breaks down into two or more elements or new compounds
  14. educated guess
  15. depends on that of another
  16. constant term related to the properties of a product
  17. a positively charged ion,
  18. a positively charged ion,
  19. A mixture which has uniform composition and properties throughout
  20. chemical reaction in which two or more simple substances combine to form a more complex product
  21. liable to change
  22. allow atoms to make covalent bonds
  23. a subatomic particle of about the same mass as a proton but without an electric charge
  24. the symbolic representation of a chemical reaction in the form of symbols and formulae
  25. can be observed or measured without changing the composition of matter
  26. is any change that results in the formation of new chemical substances
  27. the amount of protons in a neucleus
  28. The mass of atoms, their size, and how they are arranged
  29. a substance formed when two or more chemical elements
  30. a group of similar elements

60 Clues: absorbs • puts out • single column • educated guess • liable to change • a solid material • when two ions bond • a non solid material • a positively charged ion, • a positively charged ion, • depends on that of another • characteristic of something • smallest form of an element • a group of similar elements • is energy stored in the bonds • the bond between two chemicals • ...

Chapter 13 Physical Science, Lilly Stoykoff 2019-02-28

Chapter 13 Physical Science, Lilly Stoykoff crossword puzzle
Across
  1. A measure of the concentration of hydronium ions
  2. AB → A + B
  3. AB + CD → AD + CB
  4. When reaction and it’s reverse act at the same rate
Down
  1. A + BC → AC + B
  2. The minimum energy required in order for a chemical to proceed
  3. A + B → AB
  4. Description of a chemical reaction in which there is a net release of energy
  5. Description of a solution in which hydronium ion concentration is higher than the hydroxide ion concentration
  6. Description of a chemical reaction in which there is a net absorption of energy
  7. The reacting substances in a chemical reaction
  8. The new materials formed in a chemical reaction
  9. AB + oxygen → oxides of A & B + H2O

13 Clues: A + B → AB • AB → A + B • A + BC → AC + B • AB + CD → AD + CB • AB + oxygen → oxides of A & B + H2O • The reacting substances in a chemical reaction • The new materials formed in a chemical reaction • A measure of the concentration of hydronium ions • When reaction and it’s reverse act at the same rate • The minimum energy required in order for a chemical to proceed • ...

Chapter 2 2022-03-18

Chapter 2 crossword puzzle
Across
  1. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
  2. when the reaction is complete, you will have new substances called
  3. A characteristic of a substance that describes its ability to change into other substances
  4. Anything that has mass and takes up space.
  5. Any change that alters the form or appearance of a substance but does not make the substance into another substance
  6. The substances you have at the beginning
  7. A change in matter that produces one or more new substances is a chemical change, or a
  8. A principle that states during a chemical reaction, matter is not created or destroyed.
  9. A reaction that releases energy in the form of heat
  10. A characteristic of a substance that can be observed without changing the substance into another substance
Down
  1. A system in which matter can enter from or escape to the surroundings.
  2. A reaction in which energy is absorbed
  3. A system in which no matter is allowed to enter or leave.
  4. A short, easy way to show a chemical reaction, using symbols instead of words
  5. A solid that forms from solution during a chemical reaction is called a
  6. The study of matter and how matter changes

16 Clues: A reaction in which energy is absorbed • The substances you have at the beginning • Anything that has mass and takes up space. • The study of matter and how matter changes • A reaction that releases energy in the form of heat • A system in which no matter is allowed to enter or leave. • when the reaction is complete, you will have new substances called • ...

Chemistry 2022-03-18

Chemistry crossword puzzle
Across
  1. is a reaction in which energy is absorbed
  2. is a characteristic of a substance that describes its ability to change into other substances
  3. the cells in your body contain biological catalysts
  4. when the reaction is complete, you have new substances call...
  5. is any change that alters the form or appearance of a substance but does not make it into another substance
  6. the study of matter and how matter changes
  7. minimum amount of energy to start a chemical reaction
  8. the substances you have at the beginning are called...
  9. is a number placed in front of a chemical formula in an equation
  10. the amount of a substance in a given volume
  11. mass that is conserved in chemical reactions
  12. breaks down compounds into simpler products When a substance in complete you have a new substance called---
Down
  1. an easy way to show a chemical reaction using symbols instead of words
  2. a reaction that releases energy in the form of heat
  3. when two or more elements or compounds combine to make a complex substance
  4. matter can enter from or escape to the surroundings
  5. a material that increases the rate of a reaction by lowering the activstion
  6. a change in matter that produces one or more new substances in a chemical
  7. when two different elements switch places
  8. anything that has mass and takes up space
  9. is a characteristic of a substance that can be observed without changing the substance into another substance
  10. matter is not allowed to enter or leave

22 Clues: matter is not allowed to enter or leave • is a reaction in which energy is absorbed • when two different elements switch places • anything that has mass and takes up space • the study of matter and how matter changes • the amount of a substance in a given volume • mass that is conserved in chemical reactions • a reaction that releases energy in the form of heat • ...

CHEMISTRY 2017-03-23

CHEMISTRY crossword puzzle
Across
  1. A long-chain molecule formed by the joining of many smaller and repeating molecules
  2. A small amount of active molecules (such as acid) in a solution
  3. A mixture of a solute dissolved in a chemical reaction
  4. A reaction that involves oxygen and releases light and heat energy
  5. A reaction in which an acid and base combine to produce a metal salt and water
  6. A small molecule from which polymers are made
  7. A substance that increases the rate of a reaction but is not used up in the reaction
  8. A molecule that only contains carbon and hydrogen atoms
Down
  1. THEORY A theory stating that the particles involved in a chemical reaction must collide in order to react
  2. An insoluble compound formed in a precipitation reaction
  3. A strong acid readily releases a hydrogen ion in a chemical reaction, can also be used to describe the bond between different atoms
  4. Process of joining of smaller units to form a long-chain molecule
  5. Object or substance that can be broken down by bacteria, fungi and other living organisms
  6. The breakdown is the separation of a chemical compound into elements or simpler compounds
  7. The number of active molecules in a set volume of solution
  8. A reaction that involves the building up of compounds by combining simpler substances, normally elements

16 Clues: A small molecule from which polymers are made • A mixture of a solute dissolved in a chemical reaction • A molecule that only contains carbon and hydrogen atoms • An insoluble compound formed in a precipitation reaction • The number of active molecules in a set volume of solution • A small amount of active molecules (such as acid) in a solution • ...

chapter 7 vocabulary 2021-12-06

chapter 7 vocabulary crossword puzzle
Across
  1. reaction is a process that leads to the chemical transformation of one set of chemical substances to another.
  2. reactions release heat energy.
  3. is the amount of substance present in a certain volume.
  4. a substance that slows down a chemical reaction.
  5. reactions absorb heat energy.
Down
  1. of reaction tells how fast a reaction occurs after it has started.
  2. is a substance that speeds up a chemical reaction.
  3. equation tells chemist at a glance the reactants, products, physical sate, and the proportions of each substance present.
  4. a substance that forms as a result of the reaction.
  5. is the substance that exists before the reaction beings.
  6. energy to start a chemical reaction you need this energy.
  7. are large protein molecules that speed up reactions needed for your cells to work properly.

12 Clues: reactions absorb heat energy. • reactions release heat energy. • a substance that slows down a chemical reaction. • is a substance that speeds up a chemical reaction. • a substance that forms as a result of the reaction. • is the amount of substance present in a certain volume. • is the substance that exists before the reaction beings. • ...

Enzymes 2025-10-13

Enzymes crossword puzzle
Across
  1. the energy required to start a chemical reaction
  2. specialized protein that catalyzes chemical reactions in living things
  3. environmental factor that can influence enzyme function
  4. substance that reduces the activation energy for a chemical reaction
  5. region on an enzyme where the substrate can bind
  6. environmental factor that can influence enzyme function
  7. the result of an enzyme-catalyzed reaction
  8. factors that stick to the active site and prevent chemical reactions
  9. enzyme that breaks down lipids
  10. enzyme changes shape due to poor environmental conditions
Down
  1. factors that stick to allosteric site and prevent reactions
  2. enzyme that breaks down starches
  3. enzyme that breaks down sugars
  4. enzyme that breaks down lactose
  5. factors that help enzymes work faster
  6. reactant in an enzyme-catalyzed reaction

16 Clues: enzyme that breaks down sugars • enzyme that breaks down lipids • enzyme that breaks down lactose • enzyme that breaks down starches • factors that help enzymes work faster • reactant in an enzyme-catalyzed reaction • the result of an enzyme-catalyzed reaction • the energy required to start a chemical reaction • region on an enzyme where the substrate can bind • ...

Chemical Reaction Crossword 2013-01-16

Chemical Reaction Crossword crossword puzzle
Across
  1. The kind of energy stored in chemicals
  2. A change in which no new substances are formed
  3. A change in which new substances are formed
  4. Is formed when steel or iron reacts with oxygen and water
  5. A permanent change that cannot be reversed
Down
  1. A new chemical formed in a chemical reaction
  2. Something that puts out fire
  3. A change that can be reversed
  4. Produced when acids react with limestone
  5. Chemicals that join together to form a new substance
  6. A compound that includes oxygen
  7. The scientific word for burning

12 Clues: Something that puts out fire • A change that can be reversed • A compound that includes oxygen • The scientific word for burning • The kind of energy stored in chemicals • Produced when acids react with limestone • A permanent change that cannot be reversed • A change in which new substances are formed • A new chemical formed in a chemical reaction • ...

Chapter 16: Reaction Rates 2022-04-07

Chapter 16: Reaction Rates crossword puzzle
Across
  1. A short lived, unstable arrangement of atoms that can break apart and re-form the reactants or can form products; also sometimes referred to as the transition state.
  2. The rate of decomposition at a specific time, calculated from the rate law, the specific rate constant, and the concentrations of all the reactants.
  3. A chemical reaction that consists of two or more elementary steps.
  4. The change in concentration of a reactant or product per unit time, generally calculated and expressed in moles per liter per second.
  5. The minimum amount of energy required by reacting particles in order to form the activated complex and lead to a reaction.
  6. A numerical value that relates reaction rate and concentration of reactant at a specific temperature.
  7. A catalyst that exists in a different physical state than the reaction it catalyzes.
  8. The slowest elementary step in a complex reaction; limits the instantaneous rate of the overall reaction.
Down
  1. The complete sequence of elementary steps that make up a complex reaction.
  2. States that atoms, ions, and molecules must collide in order to react.
  3. A substance produced in one elementary step of a complex reaction and consumed in a subsequent elementary step.
  4. For a reactant, describes how the rate is affected by the concentrations of that reactant.
  5. A catalyst that exists in the same physical state as the reaction it catalyzes.
  6. Determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations.
  7. A substance that increases the rate of a chemical reaction by lowering activation energies but is not itself consumed in the reaction.
  8. A substance that slows down the reactions rate of a chemical reaction or prevents a reaction from happening.
  9. The mathematical relationship between the rate of a chemical reaction at a given temperature and the concentrations of reactants.

17 Clues: A chemical reaction that consists of two or more elementary steps. • States that atoms, ions, and molecules must collide in order to react. • The complete sequence of elementary steps that make up a complex reaction. • A catalyst that exists in the same physical state as the reaction it catalyzes. • ...

Chemistry 2024-06-07

Chemistry crossword puzzle
Across
  1. - Substance that accepts protons
  2. - Substance that donates protons
  3. - Electrons in the outer shell of an atom
  4. - Atoms of the same element with different numbers of neutrons
  5. - Substance that speeds up a chemical reaction
  6. - Positively charged particle
  7. - Pure substance consisting of one type of atom
  8. - Process of chemical change
  9. - Measure of acidity or basicity
Down
  1. - Connection between atoms
  2. - Substance that dissolves a solute
  3. - Negatively charged particle
  4. - Product of an acid-base reaction
  5. - Basic unit of a chemical element
  6. - Substance dissolved in a solvent
  7. - Two or more atoms bonded together
  8. - Atom or molecule with a net electric charge
  9. - Neutral particle in the nucleus
  10. - Table of elements
  11. - Substance composed of two or more elements

20 Clues: - Table of elements • - Connection between atoms • - Process of chemical change • - Negatively charged particle • - Positively charged particle • - Substance that accepts protons • - Substance that donates protons • - Measure of acidity or basicity • - Neutral particle in the nucleus • - Product of an acid-base reaction • - Basic unit of a chemical element • ...

Biomolecules Vocab 2022-09-30

Biomolecules Vocab crossword puzzle
Across
  1. two carbohydrate monomers joined together
  2. dihydrogen monoxide
  3. a single sugar unit
  4. starch would be an example of one of these
  5. a type of biological molecule that folds into complex 3D shapes
  6. a disaccharide known as "milk sugar"
  7. the smallest bit of an element that can exist
  8. more than one atom bonded together
  9. a chain of amino acids joined by peptide bonds
  10. what happens to a chain of amino acids to reach a 3D shape
Down
  1. a set of 8 valence electrons
  2. the chemical substance that goes into a chemical reaction
  3. "inside the nucleus" it's the "N" in DNA
  4. a type of nucleic acid that stores your genes
  5. a category of biological molecules that includes fats and oils
  6. a type of biological molecule used primarily as a fuel source
  7. how fast or slow a chemical reaction is
  8. the type of bond that forms when electrons get shared
  9. a type of protein that speeds chemical reactions
  10. the chemical process that uses water to split polymers into monomers
  11. ___ synthesis joins monomers together
  12. the element that is the basis of life on earth
  13. the chemical substance that comes out of a chemical reaction

23 Clues: dihydrogen monoxide • a single sugar unit • a set of 8 valence electrons • more than one atom bonded together • a disaccharide known as "milk sugar" • ___ synthesis joins monomers together • how fast or slow a chemical reaction is • "inside the nucleus" it's the "N" in DNA • two carbohydrate monomers joined together • starch would be an example of one of these • ...

Equilibrium Crossword 2024-04-23

Equilibrium Crossword crossword puzzle
Across
  1. expresses the relationship between products and reactants of a reaction at equilibrium with respect to a specific unit
  2. condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs
  3. a chemical or physical process that absorbs heat from its surroundings
  4. one in which all species are present in the same phase
  5. the speed at which a chemical reaction proceeds
  6. a natural physical system that does not allow transfer of matter in or out of the system
  7. a substance that takes part in and undergoes change during a reaction.
  8. a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
  9. A change in one of the variables that describe a system at equilibrium produces a shift in the position of the equilibrium that counteracts the effect of this change.
  10. the state wherein both the reactants and the products present in the concentration have no tendency to change with the period of time during a chemical reaction
Down
  1. measures the relative amounts of products and reactants present during a reaction at a particular point in time
  2. the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
  3. occurs when a system's state of equilibrium contains components from multiple phases
  4. is a thermodynamic process or reaction that releases energy from the system to its surroundings
  5. the measurement of energy in a thermodynamic system
  6. a substance that is present at the end of a chemical reaction

16 Clues: the speed at which a chemical reaction proceeds • the measurement of energy in a thermodynamic system • one in which all species are present in the same phase • a substance that is present at the end of a chemical reaction • a chemical or physical process that absorbs heat from its surroundings • ...

chemistry 2019-04-30

chemistry crossword puzzle
Across
  1. reaction of the release of heat
  2. change a irreversible chemical reaction involving the arrangement of one or more atoms
  3. rapid chemical reaction involving oxygen causing heat and light
  4. chemical reaction with two soluble salts in aqueous solution
  5. something that changes during a reaction
Down
  1. chemical reaction with acid and salt
  2. reaction accompanied by heat
  3. smallest particle of a chemical element
  4. change the matter is altered but never changed
  5. a substance that is produced during a natural,chemical or manufactured process

10 Clues: reaction accompanied by heat • reaction of the release of heat • chemical reaction with acid and salt • smallest particle of a chemical element • something that changes during a reaction • change the matter is altered but never changed • chemical reaction with two soluble salts in aqueous solution • rapid chemical reaction involving oxygen causing heat and light • ...

Science crossfire 2016-12-13

Science crossfire crossword puzzle
Across
  1. does not depend on that of another
  2. a substance formed when two or more chemical elements
  3. constant term related to the properties of a product
  4. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
  5. can include changing the color, shape, state of matter, or volume of a substance.
  6. a quantity obtained by multiplying quantities together
  7. a combination of two or more pure substances
  8. a subatomic particle of about the same mass as a proton but without an electric charge
  9. can be observed or measured without changing the composition of matter
  10. positive charged core of an atom
  11. legally sound, effective, or binding
  12. equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side
  13. the amount of protons in a neucleus
  14. chemical reaction in which two or more simple substances combine to form a more complex product
  15. when two ions bond
  16. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  17. absorbs
  18. puts out
  19. the symbolic representation of a chemical reaction in the form of symbols and formulae
  20. is a type of chemical reaction where one element replaces another element in a compound.
  21. a non solid material
  22. a molecular ion, is a charged chemical species
  23. a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
  24. depends on that of another
  25. a material system made up of two or more different substances
  26. a positively charged ion,
  27. characteristic of something
  28. a substance consisting of atoms which all have the same number of protons
  29. educated guess
  30. liable to change
  31. a stable subatomic particle occurring in all atomic nucle
  32. a solid material
Down
  1. chemical rule of thumb that reflects observation that atoms of main-group elements tend to combine
  2. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  3. type of chemical reaction where two compounds react, and the positive ions and the negative ions of the two reactants switch places
  4. a positively charged ion,
  5. quantity that is unknown but assumed to have a fixed value in a specified mathematical context
  6. substance a definite and constant composition
  7. properties are intermediate between those of metals and solid nonmetals. They are electrical semiconductors.
  8. a chemical bond that involves the sharing of electron pairs between atoms
  9. single column
  10. is energy stored in the bonds
  11. the bond between two chemicals
  12. a group of similar elements
  13. an exothermic reaction in which something reacts with oxygen
  14. total number of protons and neutron is a neucleus
  15. chemical reaction in which a single compound breaks down into two or more elements or new compounds
  16. designed to minimize the effects of variables other than the independent variable
  17. a particle smaller than an atom
  18. allow atoms to make covalent bonds
  19. a set of chemical symbols showing the elements present in a compound and their relative proportions
  20. is any change that results in the formation of new chemical substances
  21. the law that the properties of the elements are periodic functions of their atomic numbers
  22. a substance that takes part in and undergoes change during a reaction
  23. A mixture which has uniform composition and properties throughout
  24. a tryout or experiment to test quality, value, or usefulness
  25. a stable subatomic particle with a charge of negative electricity
  26. The mass of atoms, their size, and how they are arranged
  27. smallest form of an element
  28. the total number of protons and neutrons

60 Clues: absorbs • puts out • single column • educated guess • liable to change • a solid material • when two ions bond • a non solid material • a positively charged ion, • a positively charged ion, • depends on that of another • a group of similar elements • smallest form of an element • characteristic of something • is energy stored in the bonds • the bond between two chemicals • ...

Biology Unit 2 crossword 2022-09-28

Biology Unit 2 crossword crossword puzzle
Across
  1. powerhouse of the cell, ATP is produced
  2. plants use the sun to make energy,oxygen
  3. process that requires oxygen
  4. cells release energy in place of oxygen
  5. fluid portion of chloroplast
  6. sugar that provides energy
  7. breakdown of glucose by enzymes
  8. process that does't require oxygen
  9. reaction of photosynthesis, no light
  10. molecule that stores energy for etc
Down
  1. compound produced by chemical reaction
  2. anything that has mass/takes up space
  3. reaction of photosynthesis, yes light
  4. flatten membrane sack inside chloroplast
  5. where photosynthesis takes place
  6. the reduced form of NAD+
  7. adenosine triphosphate (energy source)
  8. jelly like fluid inside of cells
  9. starting material in chemical reaction
  10. second stage of cellular respiration

20 Clues: the reduced form of NAD+ • sugar that provides energy • process that requires oxygen • fluid portion of chloroplast • breakdown of glucose by enzymes • where photosynthesis takes place • jelly like fluid inside of cells • process that does't require oxygen • molecule that stores energy for etc • second stage of cellular respiration • reaction of photosynthesis, no light • ...

Chemistry Lessons 44-52 2020-01-27

Chemistry Lessons 44-52 crossword puzzle
Across
  1. substance with a pH less than seven
  2. describes objects or substances that float in water
  3. measure of the average kinetic energy of matter
  4. temperature scale used in the United States
  5. chemical reaction that gives off energy
  6. new substance formed by a chemical reaction
  7. instrument used to measure mass of matter
  8. amount of matter a substance contains
  9. occurs when a compound breaks down into two or more elements or simpler compounds
  10. occurs when two or more elements or compounds that make a new compound
  11. standard international measure of temperature
  12. pH of pure water
Down
  1. amount of space matter takes up
  2. substance that is being changed
  3. substance with a density of one
  4. chemical reaction that occurs when an acid and a base react
  5. chemical reaction that absorbs or gains energy
  6. temperature used by scientists worldwide
  7. occurs when an organic compound is heated and reacts with oxygen
  8. substance with a pH greater than seven
  9. measure of how tightly the atoms or molecules in matter are packed together

21 Clues: pH of pure water • amount of space matter takes up • substance that is being changed • substance with a density of one • substance with a pH less than seven • amount of matter a substance contains • substance with a pH greater than seven • chemical reaction that gives off energy • temperature used by scientists worldwide • instrument used to measure mass of matter • ...

Biochem: Matter, Water, Enzymes 2024-09-17

Biochem: Matter, Water, Enzymes crossword puzzle
Across
  1. Does not dissolve in water
  2. When mixed with water it makes more H+ ions
  3. When an enzyme loses its function
  4. Unequal distribution of charge
  5. Creating a stable internal env based upon external env
  6. Organic compounds only have these type of bonds
  7. Water attraction to other substances
  8. Gaining or Losing more than one electron
  9. A type of inhibition that changes the enzyme shape change for no reaction
  10. This is less dense than water
  11. The part of the enzyme that holds the substrate
  12. Liquid that something is dissolved in
Down
  1. A type of inhibition that has a molecule blocking the active site
  2. Newly formed substances from a chemical reaction
  3. Water is _
  4. Amount of energy needed to start a chemical reaction
  5. These molecules speed up chemical reactions
  6. Water attraction between same molecules
  7. If this goes outside of optimal range, proteins stop working
  8. A type of formula that shows elements and arrangements
  9. The substance an enzyme acts on
  10. Only one type of atom
  11. If molecules have energy level complete
  12. Term for the starting materials in a chemical reaction

24 Clues: Water is _ • Only one type of atom • Does not dissolve in water • This is less dense than water • Unequal distribution of charge • The substance an enzyme acts on • When an enzyme loses its function • Water attraction to other substances • Liquid that something is dissolved in • Water attraction between same molecules • If molecules have energy level complete • ...

Chemical Reactions 2023-09-12

Chemical Reactions crossword puzzle
Across
  1. Another reactant for photosynthesis.
  2. The evidence that a precipitation reaction has occurred is that the solutions go_____
  3. the product of the corrosion of iron.
  4. Taken in by plants as a reactant for photosynthesis.
  5. The reaction that takes place in the chloroplast of plants.
  6. The reaction of metal with oxygen gas in the presence of water.
Down
  1. The chemical equation that takes place in all living cells.
  2. A word ________ can be written to describe a reaction.
  3. Produce by plants during photosynthesis.
  4. The name of the type of reaction that takes place when things burn.
  5. Found on the left-hand side of the arrow in a chemical reaction.
  6. A product of photosynthesis.
  7. Found on the right-hand side of the arrow in a chemical reaction.
  8. A reaction between two solutions that produces a solid.
  9. The equations for Respiration and Photosynthesis are______ of each other.

15 Clues: A product of photosynthesis. • Another reactant for photosynthesis. • the product of the corrosion of iron. • Produce by plants during photosynthesis. • Taken in by plants as a reactant for photosynthesis. • A word ________ can be written to describe a reaction. • A reaction between two solutions that produces a solid. • ...

physical science crossword puzzle 2022-12-15

physical science crossword puzzle crossword puzzle
Across
  1. substances that form in chem reaction
  2. the thickness or runniness of a liquid
  3. temp of boiling
  4. enerrgy required to pull 2 atoms apart
  5. chemical bonds between atoms are broke
  6. electrons are shared
  7. electrons in the outermost shell
  8. ability to be deformed
  9. the absorbtion of heat
  10. molecules not having a dipol
  11. electrons flow in an electron sea
  12. temp of melting
Down
  1. hard metals that are malleable
  2. rate the speed of any chem reaction
  3. electrons are given and taken
  4. substances that react
  5. the heat releases
  6. burns at room temp
  7. unequal sharing of electrons
  8. soft metals highly reactive with water
  9. written form of a chemical reaction

21 Clues: temp of boiling • temp of melting • the heat releases • burns at room temp • electrons are shared • substances that react • ability to be deformed • the absorbtion of heat • molecules not having a dipol • unequal sharing of electrons • electrons are given and taken • hard metals that are malleable • electrons in the outermost shell • electrons flow in an electron sea • ...

Chemical Reactions 2021-03-30

Chemical Reactions crossword puzzle
Across
  1. identify how many atoms of each element are in the most basic unit of a compound (small number)
  2. used by scientists to name substances and show their chemical makeup
  3. in a chemical reaction _______ break and atoms rearrange
  4. a unexpected solid formed by combining two liquids that undergo a chemical reaction
  5. the rule that during a chemical reaction, matter is not created or destroyed
  6. a chemical reaction where energy is absorbed and temperature usually decreases
  7. a chemical reaction where energy is given off in the form of heat or light
Down
  1. the new substances that form in a chemical change
  2. one or more substances changes into new substances with different chemical makeups
  3. identify the number of molecules of a compound that are present in a chemical equation (big number)
  4. a change in matter that does not involve a change in chemical makeup
  5. a substance that goes through a chemical change

12 Clues: a substance that goes through a chemical change • the new substances that form in a chemical change • in a chemical reaction _______ break and atoms rearrange • a change in matter that does not involve a change in chemical makeup • used by scientists to name substances and show their chemical makeup • ...

Types of Chemical reactions Vishakh M 10L 2025-04-27

Types of Chemical reactions Vishakh M 10L crossword puzzle
Across
  1. The loss of oxygen or gain of hydrogen, or the gain of electrons.
  2. A reaction that produces an insoluble solid.
  3. A reaction in which two or more substances combine to form a single product.
  4. The slow degradation of a metal due to its reaction with air, water, or other substances.
  5. A reaction in which a single substance breaks down to give two or more simpler substances.
  6. The new substances formed during a chemical reaction.
Down
  1. The substances that take part in a chemical reaction.
  2. A type of displacement reaction involving the exchange of ions between two reactants.
  3. A reaction that releases heat, causing the surroundings to become warmer.
  4. A reaction between an acid and a base to form salt and water.
  5. A reaction in which one element displaces another element.
  6. The gain of oxygen or loss of hydrogen, or the loss of electrons.
  7. A reaction that absorbs heat, causing the surroundings to become cooler.
  8. A chemical equation having an equal number of atoms of each element on both the reactant and product sides.
  9. A type of reaction involving both oxidation and reduction processes occurring simultaneously.

15 Clues: A reaction that produces an insoluble solid. • The substances that take part in a chemical reaction. • The new substances formed during a chemical reaction. • A reaction in which one element displaces another element. • A reaction between an acid and a base to form salt and water. • The loss of oxygen or gain of hydrogen, or the gain of electrons. • ...

Types of reactions 2025-04-30

Types of reactions crossword puzzle
Across
  1. A substance that takes part in a reaction and undergoes change during a reaction.
  2. A substance that will not dissolve in a solvent even after mixing
  3. A reaction where two or more substances combine to form a single product
  4. A reaction where a reactant gets oxidised while the other gets reduced
  5. Substance that is formed in the reaction
  6. Reaction in which energy is absorbed
  7. Decomposition. A chemical reaction that happens when a compound breaks down when heated
Down
  1. A reaction where an element displaces another less reactive element
  2. . A reaction where a single compound breaks down into two or more elements or new compounds
  3. displacement. A reaction where two compounds exchange ions or bonds to form two new compounds
  4. A chemical reaction occurring in an aqueous solution where two ionic bonds combine resulting in the formation of an insoluble salt
  5. A process by which a substance gains oxygen
  6. A chemical reactions which release energy from the chemicals into the surroundings
  7. process of breaking or making of bonds between atoms to produce new substances
  8. A process by which a substance loses oxygen

15 Clues: Reaction in which energy is absorbed • Substance that is formed in the reaction • A process by which a substance gains oxygen • A process by which a substance loses oxygen • A substance that will not dissolve in a solvent even after mixing • A reaction where an element displaces another less reactive element • ...

Chemistry Lessons 44-52 2020-01-27

Chemistry Lessons 44-52 crossword puzzle
Across
  1. pH of pure water
  2. describes objects or substances that float in water
  3. temperature scale used in the United States
  4. substance with a pH less than seven
  5. occurs when a compound breaks down into two or more elements or simpler compounds
  6. substance with a density of one
  7. amount of space matter takes up
  8. substance that is being changed
  9. chemical reaction that gives off energy
  10. amount of matter a substance contains
  11. measure of how tightly the atoms or molecules in matter are packed together
  12. substance with a pH greater than seven
Down
  1. standard international measure of temperature
  2. new substance formed by a chemical reaction
  3. occurs when two or more elements or compounds that make a new compound
  4. chemical reaction that absorbs or gains energy
  5. chemical reaction that occurs when an acid and a base react
  6. occurs when an organic compound is heated and reacts with oxygen
  7. instrument used to measure mass of matter
  8. measure of the average kinetic energy of matter
  9. temperature used by scientists worldwide

21 Clues: pH of pure water • substance with a density of one • amount of space matter takes up • substance that is being changed • substance with a pH less than seven • amount of matter a substance contains • substance with a pH greater than seven • chemical reaction that gives off energy • temperature used by scientists worldwide • instrument used to measure mass of matter • ...

Unit B Crossword 2017-11-08

Unit B Crossword crossword puzzle
Across
  1. a new substance produced in a chemical reaction between reactants
  2. absorption of heat
  3. most reactive metals
  4. a substance that reacts with another to create a new substance
  5. a slow chemical change that occurs when oxygen reacts with metal
  6. release of heat
  7. consists of a nonmetal and a nonmetal
  8. the most stable and nonreactive nonmetals
  9. a subatomic particle with a negative charge
  10. a subatomic particle with a positive charge
  11. earth metals, less reactive than alkali
  12. an irreversible reaction
  13. when oxygen reacts with another substance to form a new substance that gives off energy
  14. chemical combination of 2 or more elements
  15. anything on the periodic table
Down
  1. substances that speed up the reaction rate
  2. can be in between metals and nonmetals
  3. a chemical reaction in your body
  4. a subatomic particle found in every nucleus, except for hydrogen
  5. consists of a metal and a nonmetal
  6. average mass of an element
  7. made up of one type of matter
  8. organic catalyst
  9. most reactive non metals
  10. the number of protons of an atom, determines its place on the periodic table

25 Clues: release of heat • organic catalyst • absorption of heat • most reactive metals • most reactive non metals • an irreversible reaction • average mass of an element • made up of one type of matter • anything on the periodic table • a chemical reaction in your body • consists of a metal and a nonmetal • consists of a nonmetal and a nonmetal • can be in between metals and nonmetals • ...

Chemistry Crossword 2017-11-08

Chemistry Crossword crossword puzzle
Across
  1. can be between a metal and a nonmetal
  2. mixture of two or more pure substances
  3. non-reversible or the composition does change
  4. example would be neon
  5. reversible or the composition does not change
  6. a group of atoms that has become electrically charged
  7. a prefix or latin name
  8. releases heat
  9. a chemical reaction when oxygen reacts with a substance
  10. a substance that reacts with another substance
Down
  1. gas to liquid
  2. sodium, potassium, rubidium, caesium, francium.
  3. insulator and ductile
  4. example would be copper
  5. absorbs heat
  6. non reactive metal
  7. slow chemical change
  8. found in living and nonliving things
  9. a chemical reaction that takes place in your body.
  10. helps break down food (organic)
  11. liquid to gas
  12. a thing that is composed of two or more separate elements; a mixture.
  13. a new substance produced produced in a chemical reaction
  14. anything on the periodic table

24 Clues: absorbs heat • gas to liquid • liquid to gas • releases heat • non reactive metal • slow chemical change • insulator and ductile • example would be neon • a prefix or latin name • example would be copper • anything on the periodic table • helps break down food (organic) • found in living and nonliving things • can be between a metal and a nonmetal • mixture of two or more pure substances • ...

chemical reactions and equations 2025-05-01

chemical reactions and equations crossword puzzle
Across
  1. equal atom counts and charges on both sides
  2. A reactant is a substance consumed in a chemical reaction to form products.
  3. spoilage of fats/oils through oxidation or hydrolysis, producing foul odors and flavors.
  4. a more reactive element replaces a less reactive element in a compound
  5. chemical process where a single compound breaks down into two or more simpler substances
  6. homogeneous mixture where water acts as the solvent
  7. releases energy (typically heat or light) into the surroundings
  8. loss of electrons or gain of oxygen during a chemical reaction
Down
  1. represents reactants and products with chemical formulas
  2. when two or more substances combine to form a single product
  3. insoluble solid formed after a chemical reaction
  4. a substance formed in a chemical reaction
  5. Redox reactions involve electron transfer between species, with simultaneous oxidation (electron loss) and reduction (electron gain).
  6. absorbs energy (typically heat) from its surroundings
  7. degradation of metals through oxidation
  8. homogeneous mixture of two or more substances

16 Clues: degradation of metals through oxidation • a substance formed in a chemical reaction • equal atom counts and charges on both sides • homogeneous mixture of two or more substances • insoluble solid formed after a chemical reaction • homogeneous mixture where water acts as the solvent • absorbs energy (typically heat) from its surroundings • ...

What's Hot? 2014-09-23

What's Hot? crossword puzzle
Across
  1. a positively charged ion
  2. letter or letters that represent and element
  3. substance made up of two or more elements
  4. a substance which has a solute dissolved in it
  5. reaction between an acid and a base
  6. the substances combined in a chemical reaction
  7. the new substances formed after a chemical reaction
  8. a process or reaction which gives out energy
  9. two or more atoms joined together as a unit
  10. base that can dissolve in water
  11. can burn or eat away a material
Down
  1. a shorthand way of representing a chemical reaction
  2. a solution with a large amount of solute in a solvent
  3. an insoluble substance formed from the combination of two solutions
  4. a substance made up of one type of atom
  5. substance with a high pH
  6. symbols which represent a compound
  7. a solution with a small amount of solute and a large amount of solute
  8. a solution formed when a solute dissolves in water
  9. a process or reaction which takes in energy
  10. a negatively charged ion
  11. a substance which is dissolved in a solution
  12. a scale used to measure acidity
  13. corrosive substance with a low pH
  14. a compound formed in a neutralisation reaction
  15. an atom or group of atoms that has lost or gained electrons

26 Clues: a positively charged ion • substance with a high pH • a negatively charged ion • a scale used to measure acidity • base that can dissolve in water • can burn or eat away a material • corrosive substance with a low pH • symbols which represent a compound • reaction between an acid and a base • a substance made up of one type of atom • substance made up of two or more elements • ...

chemistry crossword 2014-11-06

chemistry crossword crossword puzzle
Across
  1. of or relating to chemistry or the interactions of substances as studied in chemistry
  2. gas any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table
  3. new substances produced in a chemical reaction between reactants
  4. rapid chemical combination of a substance with oxygen, involving the production of heat and light
  5. is poisonous an can kill you
  6. change Substances often undergo changes that make them have a dramatically different appearance even though the chemical composition of the substance remains unchanged
  7. a substance that takes part in and undergoes change during a reaction
  8. gas is a substance that is a gas at normal room temperature and pressure, and is contained under pressure, usually in a cylinder
  9. element that has both metallic and non-metallic properties
  10. mass the mass of an atom of a chemical element expressed in atomic mass units
  11. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  12. a mathematical relationship or rule expressed in symbols
Down
  1. a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  2. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  3. is a column of elements in the periodic table of the chemical elements
  4. is tending to cause corrosion
  5. (of a reaction or process) accompanied by or requiring the absorption of heat
  6. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  7. compound A compound which is held together by ionic bonds
  8. a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity (e.g., iron, gold, silver, copper, and aluminum, and alloys such as brass and steel)
  9. (of a compound) formed from its constituent elements with a net release of heat
  10. is the name given to a horizontal row of the periodic table
  11. any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table
  12. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen

24 Clues: is poisonous an can kill you • is tending to cause corrosion • a mathematical relationship or rule expressed in symbols • compound A compound which is held together by ionic bonds • element that has both metallic and non-metallic properties • is the name given to a horizontal row of the periodic table • ...

ORGANIC CHEMISTRY 2020-06-08

ORGANIC CHEMISTRY crossword puzzle
Across
  1. Form of Isomerism: Differing in spacial arrangement
  2. Reagent: Test for presence of carbonyl compounds (no comma or dash)
  3. Colour of ppt of a positive iodoform test
  4. Condition: for Free Redical Substitution
  5. Product: white solid formed from side-chain oxidation
  6. Reaction: occurs with addition of oxygen
  7. Reaction: H2(g), Ni Catalyst, heat or Pt/Pd catalyst
  8. Reaction: NaOH(aq), heat
  9. Reaction: Sn2 or Sn1 mechanism
  10. Reagent: Reduction of amides to form amines (chemical formula)
  11. Reaction: hot acidified KMNO4(aq)
Down
  1. 1. Halogenation 2. Alkylation 3. Nitration
  2. Reagent: Condensation to form esters with alcohol but without catalyst
  3. Organic compound: formation of (answer) using ethanolic KCN, heat
  4. Reagent: heat with (answer) to form convert c.acid to acyl chlorides or nu. subt to form halogenoalkane from alcohols (chemical formula)
  5. Reaction: excess conc H2SO4, heat (of alcohol)
  6. Reagent: used to identify aldehydes (no apostrophe)
  7. Reaction: H2SO4(aq), heat
  8. Reagent: Test for alkenes
  9. the weaker oxidising agent between the two OAs
  10. Organic compound: warm at 30c with conc HNO3 and conc H2SO4
  11. Reagent: used to identify aliphatic aldehydes (no apostrophe)
  12. Organic compound: NaCO3 & NaHCO3 used to test for its presence
  13. Structure: Overlapping of (answer) in benzene/ dumbbell-shaped
  14. Reagent: Test for the presence of phenol(Chemical formula)

25 Clues: Reaction: NaOH(aq), heat • Reaction: H2SO4(aq), heat • Reagent: Test for alkenes • Reaction: Sn2 or Sn1 mechanism • Reaction: hot acidified KMNO4(aq) • Condition: for Free Redical Substitution • Reaction: occurs with addition of oxygen • Colour of ppt of a positive iodoform test • 1. Halogenation 2. Alkylation 3. Nitration • Reaction: excess conc H2SO4, heat (of alcohol) • ...

What's Hot? 2014-09-23

What's Hot? crossword puzzle
Across
  1. corrosive substance with a low pH
  2. substance made up of two or more elements
  3. two or more atoms joined together as a unit
  4. a substance made up of one type of atom
  5. reaction between an acid and a base
  6. a shorthand way of representing a chemical reaction
  7. the new substances formed after a chemical reaction
  8. a solution formed when a solute dissolves in water
  9. an insoluble substance formed from the combination of two solutions
  10. a compound formed in a neutralisation reaction
  11. letter or letters that represent and element
  12. can burn or eat away a material
  13. the substances combined in a chemical reaction
Down
  1. a solution with a large amount of solute in a solvent
  2. a substance which is dissolved in a solution
  3. a process or reaction which takes in energy
  4. symbols which represent a compound or element
  5. a scale used to measure acidity
  6. a substance which has a solute dissolved in it
  7. a solution with a small amount of solute and a large amount of solute
  8. a process or reaction which gives out energy
  9. substance with a high pH
  10. an atom or group of atoms that has lost or gained electrons
  11. a positively charged ion
  12. base that can dissolve in water
  13. a negatively charged ion

26 Clues: substance with a high pH • a positively charged ion • a negatively charged ion • a scale used to measure acidity • can burn or eat away a material • base that can dissolve in water • corrosive substance with a low pH • reaction between an acid and a base • a substance made up of one type of atom • substance made up of two or more elements • ...

What's Hot? 2014-09-23

What's Hot? crossword puzzle
Across
  1. a process or reaction which takes in energy
  2. two or more atoms joined together as a unit
  3. an insoluble substance formed from the combination of two solutions
  4. a process or reaction which gives out energy
  5. base that can dissolve in water
  6. a substance which is dissolved in a solution
  7. a solution with a large amount of solute in a solvent
  8. letter or letters that represent and element
  9. the new substances formed after a chemical reaction
  10. an atom or group of atoms that has lost or gained electrons
  11. a solution with a small amount of solute and a large amount of solute
  12. a solution formed when a solute dissolves in water
Down
  1. a compound formed in a neutralisation reaction
  2. reaction between an acid and a base
  3. corrosive substance with a low pH
  4. substance made up of two or more elements
  5. a substance made up of one type of atom
  6. a scale used to measure acidity
  7. a negatively charged ion
  8. the substances combined in a chemical reaction
  9. substance with a high pH
  10. a substance which has a solute dissolved in it
  11. a positively charged ion
  12. can burn or eat away a material
  13. a shorthand way of representing a chemical reaction
  14. symbols which represent a compound

26 Clues: a negatively charged ion • substance with a high pH • a positively charged ion • a scale used to measure acidity • base that can dissolve in water • can burn or eat away a material • corrosive substance with a low pH • symbols which represent a compound • reaction between an acid and a base • a substance made up of one type of atom • substance made up of two or more elements • ...

Crossword Puzzle 2020-10-23

Crossword Puzzle crossword puzzle
Across
  1. photosynthetic carbon reduction
  2. reach transition state
  3. citric acid cycle
  4. 35-40 degrees celcius
  5. important to flow of energy
  6. C3 H4 O3
  7. chemical changes in organic
  8. energy
  9. describe an organism
  10. 02 as fuel
  11. starting materials
  12. TCA or Krebs cycle
  13. membrane bound organelles
  14. synthesis of organic compounds
Down
  1. formed from chemical reaction
  2. not using light energy
  3. use light energy
  4. electron donors to acceptors
  5. chemical species
  6. conduct photosynthesis
  7. temporary molecule formed
  8. respiration chemical energy from oxygen
  9. increases rate of reaction
  10. pigments in plants
  11. breaking of bonds
  12. C6 H12 O8
  13. breakdown of glucose

27 Clues: energy • C3 H4 O3 • C6 H12 O8 • 02 as fuel • use light energy • chemical species • citric acid cycle • breaking of bonds • pigments in plants • starting materials • TCA or Krebs cycle • describe an organism • breakdown of glucose • 35-40 degrees celcius • not using light energy • reach transition state • conduct photosynthesis • temporary molecule formed • membrane bound organelles • ...

Chemistry Crossword 2025-05-04

Chemistry Crossword crossword puzzle
Across
  1. elements with both metal and non-metal properties
  2. two types of reaction that can be single or double
  3. the horizontal rows of the periodic table
  4. a chemical that changes colour depending on pH
  5. the vertical columns of the periodic table
  6. the chemicals used up in a reaction
  7. a type of reaction with only one reactant
  8. a type of reaction with only one product
  9. a new solid product made in a reaction
  10. a wooden stick used for gas tests
Down
  1. chemical name for vinegar
  2. ion found in many bases
  3. a reactive group of non-metals that includes chlorine
  4. an indicator paper that can be red or blue
  5. another word for basic
  6. can destroy metals and cause burns
  7. the chemicals made in a reaction
  8. compounds that are made by the transfer of electrons
  9. the electrons on the outermost electron shell
  10. compounds that are made by the sharing of electrons

20 Clues: another word for basic • ion found in many bases • chemical name for vinegar • the chemicals made in a reaction • a wooden stick used for gas tests • can destroy metals and cause burns • the chemicals used up in a reaction • a new solid product made in a reaction • a type of reaction with only one product • the horizontal rows of the periodic table • ...

Emerson's Crossword Puzzle 2024-05-15

Emerson's Crossword Puzzle crossword puzzle
Across
  1. the chemical substances which are formed due to a chemical reaction between two or more chemical substances
  2. any chemical reaction that absorbs heat from its environment
  3. a combination of two or more substances in any proportion
  4. the starting materials in a reaction that undergo a chemical change to form a product
  5. energy that is transferred from one body to another as the result of a difference in temperature
  6. the release of heat
  7. An____is made up of 3 particles; protons, neutrons and electrons
  8. anything that takes up space and can be weighed
Down
  1. a characteristic of a particular substance that can be observed in a chemical reaction
  2. a measure of the average kinetic energy of the atoms or molecules in the system
  3. a simple substance that cannot be broken down into smaller parts or changed into another substance
  4. When two or more elements chemically combine in a fixed ratio by mass
  5. a characteristic of a substance that can be observed or measured without changing the identity of the substance
  6. the capacity to supply heat or do work
  7. the amount of matter or substance that makes up an object
  8. the study of matter and its interactions with other matter and energy
  9. the attraction of molecules for other molecules of the same kind, and water molecules have strong cohesive forces thank
  10. the process where reactants are transformed into products

18 Clues: the release of heat • the capacity to supply heat or do work • anything that takes up space and can be weighed • a combination of two or more substances in any proportion • the amount of matter or substance that makes up an object • the process where reactants are transformed into products • any chemical reaction that absorbs heat from its environment • ...

Chemical Reactions 2024-08-04

Chemical Reactions crossword puzzle
Across
  1. Gas evolved in the reaction between zinc and dilute sulphuric acid.
  2. Example of a chemical reaction involving iron.
  3. The transformation of chemical substances into other chemical substances.
  4. What happens to atoms in a chemical reaction.
Down
  1. The process of breaking down food.
  2. New substances produced in a chemical reaction.
  3. Characteristic of the reaction between zinc and dilute sulphuric acid.
  4. The setting of milk into curd.
  5. Substances which take part in a chemical reaction.
  6. The process of inhaling and exhaling; also a chemical reaction.

10 Clues: The setting of milk into curd. • The process of breaking down food. • What happens to atoms in a chemical reaction. • Example of a chemical reaction involving iron. • New substances produced in a chemical reaction. • Substances which take part in a chemical reaction. • The process of inhaling and exhaling; also a chemical reaction. • ...

Chemical reactions 2023-05-15

Chemical reactions crossword puzzle
Across
  1. A reaction of a substance with oxygen to give heat and light.
  2. A chemical reaction that releases heat causing the heat in its environment to rise.
  3. Reaction in which an atom or ion loses electrons.
  4. Formed when 2 elements share valence electrons.
  5. Substance formed in a chemical reaction.
  6. When 2 ions are created, 1 loses an electron and another gains one, ex: NaCl.
  7. Substance that reacts with another substance in a chemical reaction.
Down
  1. Process where substances react with each other and form new substances with different properties.
  2. Substance consisting of more than one element.
  3. Chemical compound with oxygen.
  4. A chemical reaction that absorbs heat and cools down its environment.
  5. Brown, crumbly chemical compound formed when iron reacts with oxygen and water.

12 Clues: Chemical compound with oxygen. • Substance formed in a chemical reaction. • Substance consisting of more than one element. • Formed when 2 elements share valence electrons. • Reaction in which an atom or ion loses electrons. • A reaction of a substance with oxygen to give heat and light. • Substance that reacts with another substance in a chemical reaction. • ...

Science Vocabulary 2012-03-19

Science Vocabulary crossword puzzle
Across
  1. the chemicals used at the start of the reaction
  2. the solid produced when two chemicals react
  3. an arrangement of all known elements in order of their size and structure
  4. smallest particle of matter
  5. pure substances containing only one type of atom
  6. mass is always the same at the start and end of a reaction
  7. number of protons in an atom
  8. two or more different atoms joined together
  9. when two smaller chemicals join in a reaction
  10. new chemicals are made
  11. two or more molecules or compounds
  12. neutral particles in an atom found in the nucleus
Down
  1. when chemicals swap partners in a reaction
  2. the study of matter and how it behaves
  3. shows what chemicals are at the start and end of a reaction
  4. how a reaction happens
  5. new chemical formed, not easily reversed
  6. what a chemical looks like and how it behaves
  7. when a chemical breaks apart into two or more chemicals in a reaction
  8. the chemicals made by the equation
  9. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  10. positive particles in an atom found in the nucleus
  11. number of protons plus neutrons in an atom
  12. a aection with oxygen (burning)
  13. two or more atoms joined together
  14. the process of gaining knowledge by observation and experiment

26 Clues: how a reaction happens • new chemicals are made • smallest particle of matter • number of protons in an atom • a aection with oxygen (burning) • two or more atoms joined together • the chemicals made by the equation • two or more molecules or compounds • the study of matter and how it behaves • new chemical formed, not easily reversed • ...

Thermodynamics Vocab. 2015-09-17

Thermodynamics Vocab. crossword puzzle
Across
  1. organic molecule that participates in reaction, but is left unchanged afterward
  2. hydrolysis of this molecule can be coupled to an endergonic reaction to make the whole reaction be spontaneous
  3. reactants that bind to active site
  4. law of thermodynamics that says that entropy always increases
  5. name of site where reaction takes place
  6. type of energy that is initially needed to start a reaction
  7. another word for not spontaneous
  8. an agent that speeds up the rate of a chemical reaction without being changed during the reaction (WILL NOT MAKE ANYTHING HAPPEN THAT WOULDN'T HAPPEN ANYWAY)
  9. sum of all chemical reactions in a cell
  10. synthesis of cellular components
  11. total energy
  12. law of thermodynamics that says that energy cannot be created or destroyed
  13. usually inorganic ion that temporarily binds to enzyme
  14. RNA molecules with catalytic properties
Down
  1. this happens when nearly all active sites are occupied by substrate
  2. a subset of potential energy that is due to the energy in molecular bonds
  3. ability to promote change or do work
  4. type of energy due to structure or location
  5. a reaction is said to be this when delta G is negative, and it will occur without the input of additional energy
  6. type of energy associated with movement
  7. breakdown of cellular components
  8. another word for spontaneous
  9. unusable energy
  10. protein catalysts in living cells

24 Clues: total energy • unusable energy • another word for spontaneous • another word for not spontaneous • breakdown of cellular components • synthesis of cellular components • protein catalysts in living cells • reactants that bind to active site • ability to promote change or do work • name of site where reaction takes place • type of energy associated with movement • ...

GENERAL CHEMISTRY 50 WORD CROSSWORD 2020-05-29

GENERAL CHEMISTRY 50 WORD CROSSWORD crossword puzzle
Across
  1. Measure of how fast velocity is changing
  2. number equal to the sum of the atomic masses of the atoms in a molecule.
  3. degree to which a chemical substance or a particular mixture of substances can damage an organism
  4. heterogeneous mixture that contains solid particles sufficiently large for sedimentation.
  5. chemical reaction that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light.
  6. chemical symbol of magnesium
  7. process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
  8. semi-solid that can have properties ranging from soft and weak to hard and tough
  9. CHANGE, process in which one or more substances are altered into one or more new and different substances
  10. molecules composed of only two atoms, of the same or different chemical elements
  11. process for the separation of mixtures of immiscible liquids or of a liquid
  12. A silvery-white, hard metallic element that occurs abundantly in minerals such as hematite, magnetite, pyrite, and ilmenite
  13. process whereby atoms or molecules in a liquid state
  14. substance formed when two or more chemical elements are chemically bonded together
  15. smallest constituent unit of ordinary matter that constitutes a chemical element.
  16. reaction or direct combination reaction is one of the most common types of chemical reaction.
  17. average mass of atoms of an element,
  18. process by which a substance changes from the solid phase to the liquid phase
  19. compund type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds.
  20. substance whose atoms all have the same number of protons
  21. type of phase transition, or a change in a state of matter, just like melting, freezing, and evaporation.
  22. measure of mass per unit of volume
  23. force exerted by the substance per unit area on another substance
  24. compound chemical bond that involves the sharing of electron pairs between atoms
  25. laboratory technique for the separation of a mixture.
Down
  1. substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions
  2. decimal unit prefix in the metric system denoting multiplication by one thousand
  3. measure of how easily a substance bursts into flame, through fire or combustion.
  4. type of colloid, of the form of one solid dispersed in another continuous solid.
  5. mixture of two or more liquids in which one is present as droplets, of microscopic or ultramicroscopic size
  6. reaction is a type of chemical reaction in which the reactant ions exchange places to form new products.
  7. process of separating components of mixtures by using magnets to attract magnetic materials.
  8. a type of change in which the form of matter is altered but one substance is not transformed into another.
  9. sample of matter with both definite and constant composition and distinct chemical properties.
  10. vector quantity, equal to the speed and direction of a particle
  11. occupies space and has mass.
  12. chemical symbol of carbon dioxide
  13. reaction is a type of chemical reaction in which one reactant yields two or more
  14. unit prefix meaning "one billionth"
  15. element that doesn't have the characteristics of metal
  16. component of an atomic nucleus with a mass
  17. chemical symbol of titanium
  18. he push or pull on an object with mass that causes it to change velocity
  19. chemical symbol of chlorine
  20. PROPERTY, characteristic of a substance that may be observed when it participates in a chemical reaction
  21. chemical symbol of osmium
  22. type of colloid in which solid particles are suspended in a liquid
  23. chemical element of Group 1
  24. property of matter that depends only on the type of matter in a sample and not on the amount
  25. chemical symbol of strontium
  26. colloidal system in which the particles are gas bubbles and the medium is a liquid

51 Clues: chemical symbol of osmium • chemical symbol of titanium • chemical symbol of chlorine • chemical element of Group 1 • chemical symbol of magnesium • occupies space and has mass. • chemical symbol of strontium • chemical symbol of carbon dioxide • measure of mass per unit of volume • unit prefix meaning "one billionth" • average mass of atoms of an element, • ...

Chapter Two 2014-12-11

Chapter Two crossword puzzle
Across
  1. Would bleach be high or low on the pH scale?
  2. A chemical reaction that releases more energy than it absorbs.
  3. A chemical reaction that absorbs more energy than it releases.
  4. Two or more atoms held together by covalent bonds.
  5. What has the three fundamental structures; straight chains, branched chains, and rings?
  6. Mixture of substances that is the same throughout.
  7. Molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
  8. The colvalent bons that amino acids form are called...?
  9. Substances made by a chemical reaction.
  10. Polymers that are made up of monomers called nucleotides.
  11. What two molecules attach to a hydrogen to make a water molecule?
  12. Amount of energy that will break a bond between two atoms.
  13. Each subunit in a complete molecule.
Down
  1. A larger molecule, or macromolecule, made of many monomers bonded together.
  2. Substance that is present in the greater amount and that dissolves another substance.
  3. energy Amount of energy needed to start a chemical reaction.
  4. A compound that releases a proton when it dissolves in water.
  5. Changes substances into different substances by breaking and forming chemical bonds.
  6. The substances that changes during a chemical reaction.
  7. Bond that forms through the electrical force between oppositely charged ions.
  8. Bond that forms when atoms share a pair of electrons.
  9. Reached when both the reactants and products are made at the same rate.
  10. Compounds that remove H+ ions from a solution.
  11. Substance that dissolves in a solvent.
  12. What are the two general types of nucleic acids?

25 Clues: Each subunit in a complete molecule. • Substance that dissolves in a solvent. • Substances made by a chemical reaction. • Would bleach be high or low on the pH scale? • Compounds that remove H+ ions from a solution. • What are the two general types of nucleic acids? • Two or more atoms held together by covalent bonds. • ...

Crossword - Rates of Reaction 2023-10-13

Crossword - Rates of Reaction crossword puzzle
Across
  1. The measure of the total area of the exposed surfaces of a substance.
  2. A measure of the amount of a substance in a given volume.
  3. The appearance of ______is a sign energy in the form of heat has been released. For example, what do you see when you light a candle?
  4. The substance that speeds up a chemical reaction without being consumed itself.
  5. A solid formed in a chemical reaction is called a P.............
  6. A reaction that releases energy, often in the form of heat and light. Often substances feel warm to the touch
  7. A substance that slows down or inhibits a chemical reaction.
Down
  1. This factor can significantly influence the rate of a chemical reaction.
  2. A substance that is present at the beginning of a chemical reaction
  3. A chemical reaction in which heat is absorbed from the surroundings; often substances appear cold to the touch
  4. The formation of bubbles during a reaction is a sign of ____ being produced.
  5. A visible change in _________can be a strong indicator of this in a chemical reaction.

12 Clues: A measure of the amount of a substance in a given volume. • A substance that slows down or inhibits a chemical reaction. • A solid formed in a chemical reaction is called a P............. • A substance that is present at the beginning of a chemical reaction • The measure of the total area of the exposed surfaces of a substance. • ...

Enzymes and Biochemical Reactions Vocabulary 2023-10-24

Enzymes and Biochemical Reactions Vocabulary crossword puzzle
Across
  1. Substance that is made during a chemical reaction.
  2. Reactions that build larger molecules from smaller ones.
  3. Reactions that break down larger molecules into simpler compounds.
  4. All of the chemical reactions within each cell of an organism.
  5. Location on an enzyme where the substrate binds.
  6. (Usually a protein) that speeds up a biochemical reaction by lowering its activation energy.
  7. When an enzyme’s active site loses its specific shape, causing a loss in biological activity
Down
  1. A reaction that overall absorbs more energy (in the form of heat or light) than it releases.
  2. The breaking and forming of bonds between different substances during chemical changes.
  3. Substances that speed up reactions without being permanently altered.
  4. The amount of energy needed to make a chemical reaction start.
  5. A reaction that overall releases more energy (in the form of heat or light) than it absorbs.
  6. Substance that is changed during a chemical reaction.

13 Clues: Location on an enzyme where the substrate binds. • Substance that is made during a chemical reaction. • Substance that is changed during a chemical reaction. • Reactions that build larger molecules from smaller ones. • All of the chemical reactions within each cell of an organism. • The amount of energy needed to make a chemical reaction start. • ...

Ch 2 and 16 vocab 2017-09-25

Ch 2 and 16 vocab crossword puzzle
Across
  1. non-uniform composition
  2. the property of a substance to not react.(its stable)
  3. substance that cannot be broken down into simplar substances by chemical means.
  4. a change that requires a change in a chemical composition.
  5. Properties that do change that chemical nature of matter.
  6. measuring the amount of heat involved in a chemical reaction or other process.
  7. amount of heat required to raise a substance one degree celcius/kelvin.
Down
  1. refers to a substance that is consistant or uniform throughout is volume.
  2. made of only one type of atom or only one type of molecule.
  3. combination of 2 or more pure substances.
  4. realeses out of the reaction.
  5. are changes affecting the form of a chemical substance, but not its chemical composition.
  6. the degree or intensity of heat present in a substance or object.
  7. a unit of energy.
  8. amount of size does not matter.
  9. something that has mass and takes up space.
  10. substance consisting of atoms oer ions of 2 or more different elements in definate properties joined by chemical bonds into a molecule.
  11. in to the reaction.
  12. a homogeneous mixture composed of two or more substances.
  13. the quality of being hot.

20 Clues: a unit of energy. • in to the reaction. • non-uniform composition • the quality of being hot. • realeses out of the reaction. • amount of size does not matter. • combination of 2 or more pure substances. • something that has mass and takes up space. • the property of a substance to not react.(its stable) • Properties that do change that chemical nature of matter. • ...

Science Crossword Puzzle 2018-02-05

Science Crossword Puzzle crossword puzzle
Across
  1. more than one atom
  2. / Visibly different substances
  3. / The new substance that is formed in a chemical reaction.
  4. / Anything that has mass or volume
  5. / The substance in a chemical reaction that undergoes change. The ingredients of the reaction.
  6. / Two or more substances that are physically combined
  7. Property / Potential to change
Down
  1. / Two or more atoms
  2. / All substances are the same throughout
  3. Property / Observable,can be measured
  4. / Made of one type of atom
  5. Reaction / A chemical reaction the absorbs heat (gets colder) as it reacts.

12 Clues: more than one atom • / Two or more atoms • / Made of one type of atom • / Visibly different substances • Property / Potential to change • / Anything that has mass or volume • Property / Observable,can be measured • / All substances are the same throughout • / Two or more substances that are physically combined • / The new substance that is formed in a chemical reaction. • ...

Chemistry Crossword 2017-02-05

Chemistry Crossword crossword puzzle
Across
  1. A substance that can accept of neutralise hydrogen ions.
  2. A molecule that can donate a proton or accept a pair of electrons in reactions.
  3. A positively charged particle.
  4. Damage caused to a metal or stone.
  5. The process of decay.
  6. A fast chemical combination of a substance with oxygen.
  7. Where substances act with each other, or change into a new substance.
  8. A compound with chemical properties.
  9. A particle that has lost or gained one or more electrons.
  10. The power of combined elements.
  11. A non-charged /neutral particle.
  12. Elements that occupy a column on the periodic table.
  13. A negatively charged ion.
Down
  1. Elements that occupy a horizontal row on the periodic table.
  2. A positively charged ion.
  3. The result of a chemical reaction.
  4. The process of precipitating a substance from a solution.
  5. The bond of two or more elements.
  6. A negatively charged particle.
  7. A substance that speeds or slows down a reaction without getting involved.
  8. A combination of element symbols.
  9. a substance that is added to cause a chemical reaction,
  10. A particle that makes up everything.

23 Clues: The process of decay. • A positively charged ion. • A negatively charged ion. • A positively charged particle. • A negatively charged particle. • The power of combined elements. • A non-charged /neutral particle. • The bond of two or more elements. • A combination of element symbols. • The result of a chemical reaction. • Damage caused to a metal or stone. • ...

periodic table crossword puzzle 2013-05-23

periodic table crossword puzzle crossword puzzle
Across
  1. the average mass of on atom of an elements
  2. organizes information about the element and their properties
  3. a particle made of two or more atoms
  4. the smallest particle of an element
  5. a short simple way to describe a chemical reaction
  6. the substance you start with in a chemical reaction
  7. a row across the table
  8. a substance that cannotbe broken down into any other substance
  9. a charateristic that is observed when something changes into a different substance
  10. elements in the same columns
  11. constist of two or more substances
Down
  1. a chemical reaction
  2. an elements is presented by one or two letters
  3. a caracteristic of a subsatance that can be observed without changing the substance
  4. alters the form or apperance of a meterial
  5. material that can be pounded into shapes
  6. the force that holds atoms together
  7. shows the ratio of elements in the compound
  8. asubstance made of two or more elements
  9. an element is the number of protons in the nucleus
  10. a substance formed as a result of a chemical reaction

21 Clues: a chemical reaction • a row across the table • elements in the same columns • constist of two or more substances • the smallest particle of an element • the force that holds atoms together • a particle made of two or more atoms • asubstance made of two or more elements • material that can be pounded into shapes • the average mass of on atom of an elements • ...

Chemical reactions Vocabulary 2025-01-31

Chemical reactions Vocabulary crossword puzzle
Across
  1. substance that contains no water
  2. mixture of gases that surrounds the Earth
  3. positively charged ion
  4. negatively charged ion
  5. bond bond made between a metal and nonmetal formed through the transfer of electrons
  6. a substance that is chemically combined with water
  7. process manufacture of sulfur dioxide using sulfur and oxygen
  8. or a reaction to occur, collide in the right orientation, and with sufficient energy.
  9. loss of oxygen
  10. minimum amount of energy required 4 a rxn
Down
  1. a process in which one or more substances are changed into others
  2. a chemical reaction that can both forwards and backwards
  3. an ion made of several elements that are covalently bonded together
  4. measure of how fast a chemical reaction occurs
  5. substance that speeds up the rate of a chemical reaction
  6. gain of oxygen
  7. a protein that acts as a biological catalyst
  8. chemical process that produces ammonia in large quantities
  9. rate of both the forward and reverse reactions are the same
  10. ion a charged particlemade from a sigle atom with an uneven number of protons and electrons

20 Clues: gain of oxygen • loss of oxygen • positively charged ion • negatively charged ion • substance that contains no water • mixture of gases that surrounds the Earth • minimum amount of energy required 4 a rxn • a protein that acts as a biological catalyst • measure of how fast a chemical reaction occurs • a substance that is chemically combined with water • ...

Chapter 8 & 9 Chemistry 2022-04-26

Chapter 8 & 9 Chemistry crossword puzzle
Across
  1. the ratio of actual yield to theoretical yield expressed as a percentage
  2. shorthand for molecules
  3. the reactant that limits the amount of product that can be made
  4. a solution in which a large portion of the solute exists as ions
  5. a type of chemical reaction in which two particles form an insoluble substance
  6. any substance that decreases the hydrogen ion in a solution
  7. a solid that dissolves in a liquid
  8. show the complete formulas of all reactants and products
  9. a chemical reaction with 02 in the reactants
  10. a conversion factor based on the balanced chemical equation
  11. a solid that forms from a solution
  12. equation an ionic equation the only includes the particles that participate
Down
  1. the chemicals that produce the products in a chemical reaction
  2. the chemicals made up of reactants
  3. an acid that completely ionizes in a solution
  4. the main reason a chemical reaction occurs
  5. any compound that forms H+ ions
  6. the ions that do not participate in a chemical reaction
  7. when an acid and base mix and form H2O
  8. the formation of a precipitate from two solubles
  9. a compound that is made from the neutralization of an acid with a base
  10. a base that completely dissolves in a solution
  11. given by the relative atomic mass of the element multiplied by the molar mass constant
  12. a solid that does not dissolve in a liquid
  13. the maximum amount of product that can made with a given reactant
  14. an equation to determine the relative masses of chemicals

26 Clues: shorthand for molecules • any compound that forms H+ ions • the chemicals made up of reactants • a solid that dissolves in a liquid • a solid that forms from a solution • when an acid and base mix and form H2O • the main reason a chemical reaction occurs • a solid that does not dissolve in a liquid • a chemical reaction with 02 in the reactants • ...

Photosynthesis 2023-04-17

Photosynthesis crossword puzzle
Across
  1. what comes out of a chemical reaction
  2. the pigment that absorbs the sunlight
  3. a reactant for photosynthesis from the ground
  4. light
  5. provides energy for the reaction to start
  6. an opening in the leaf that lets carbon dioxide in
  7. the symbols for glucose
  8. the number of glucoses produced by photosynthesis
  9. the symbols for oxygen
  10. making
  11. a carbohydrate product of photosynthesis
  12. a reactant for photosynthesis from the air
  13. the catalyst for photosynthesis
  14. a chemical change from one substance to another
  15. what goes into a chemical reaction
Down
  1. control whether a hole in the leaf is open or shut
  2. sunlight breaks water molecules to make ATP and NADPH
  3. second step in photosynthesis that converts carbon dioxide into glucose
  4. the chemical process of making glucose
  5. the symbols for carbon dioxide
  6. the organelle where photosynthesis takes place
  7. a gas product of photosynthesis
  8. the symbols for water
  9. energy created and used during photosynthesis
  10. the number of water and carbon dioxide molecules needed to make glucose
  11. the color of light that is reflected by chlorophyll
  12. usable energy for a cell

27 Clues: light • making • the symbols for water • the symbols for oxygen • the symbols for glucose • usable energy for a cell • the symbols for carbon dioxide • a gas product of photosynthesis • the catalyst for photosynthesis • what goes into a chemical reaction • what comes out of a chemical reaction • the pigment that absorbs the sunlight • the chemical process of making glucose • ...

physical science crossword puzzle 2022-12-15

physical science crossword puzzle crossword puzzle
Across
  1. substances that form in chem reaction
  2. the thickness or runniness of a liquid
  3. temp of boiling
  4. enerrgy required to pull 2 atoms apart
  5. chemical bonds between atoms are broke
  6. electrons are shared
  7. electrons in the outermost shell
  8. ability to be deformed
  9. the absorbtion of heat
  10. molecules not having a dipol
  11. electrons flow in an electron sea
  12. temp of melting
Down
  1. hard metals that are malleable
  2. rate the speed of any chem reaction
  3. electrons are given and taken
  4. substances that react
  5. the heat releases
  6. burns at room temp
  7. unequal sharing of electrons
  8. soft metals highly reactive with water
  9. written form of a chemical reaction

21 Clues: temp of boiling • temp of melting • the heat releases • burns at room temp • electrons are shared • substances that react • ability to be deformed • the absorbtion of heat • molecules not having a dipol • unequal sharing of electrons • electrons are given and taken • hard metals that are malleable • electrons in the outermost shell • electrons flow in an electron sea • ...

Bio CK12 1.18 Enzyme Function 2025-09-27

Bio CK12 1.18 Enzyme Function crossword puzzle
Across
  1. The _______ of enzymes depend on the temperature and the pH of the surroundings
  2. chemical reaction that occurs inside the cells of living things.
  3. the place on an enzyme where the substrate binds.
  4. a substance that increases the rate of a chemical reaction by lowering the activation energy without being used up in the reaction.
  5. the molecule or molecules on which an enzyme acts.
  6. main enzyme in the stomach, which chemically digests protein.
  7. it is estimated to be around _______ different enzymes in the human body.
  8. a protein that acts as a biological catalyst, increasing the rate of a biochemical reaction.
Down
  1. organ system that breaks down food, absorbs nutrients, and eliminates any remaining waste.
  2. process that occurs when one or more substances, called reactants, is changed into one or more new substances, called products.
  3. energy needed to start a chemical reaction.
  4. organic molecules, such as glucose, that organisms use for chemical energy.
  5. act by lowering the energy needed to start a chemical reaction
  6. organic compound made up of amino acids.
  7. the ability to do work.
  8. sac-like organ of the digestive system between the esophagus and small intestine in which both mechanical and chemical digestion take place.
  9. long, narrow, tube-like organ of the digestive system between the stomach and large intestine that carries out most of the chemical digestion and nutrient absorption.
  10. At higher temperatures, an enzyme’s shape deteriorates, also known as _________

18 Clues: the ability to do work. • organic compound made up of amino acids. • energy needed to start a chemical reaction. • the place on an enzyme where the substrate binds. • the molecule or molecules on which an enzyme acts. • main enzyme in the stomach, which chemically digests protein. • act by lowering the energy needed to start a chemical reaction • ...

Biology Unit 2 crossword 2022-09-28

Biology Unit 2 crossword crossword puzzle
Across
  1. powerhouse of the cell, ATP is produced
  2. plants use the sun to make energy,oxygen
  3. process that requires oxygen
  4. cells release energy in place of oxygen
  5. fluid portion of chloroplast
  6. sugar that provides energy
  7. breakdown of glucose by enzymes
  8. process that does't require oxygen
  9. reaction of photosynthesis, no light
  10. molecule that stores energy for etc
Down
  1. compound produced by chemical reaction
  2. anything that has mass/takes up space
  3. reaction of photosynthesis, yes light
  4. flatten membrane sack inside chloroplast
  5. where photosynthesis takes place
  6. the reduced form of NAD+
  7. adenosine triphosphate (energy source)
  8. jelly like fluid inside of cells
  9. starting material in chemical reaction
  10. second stage of cellular respiration

20 Clues: the reduced form of NAD+ • sugar that provides energy • process that requires oxygen • fluid portion of chloroplast • breakdown of glucose by enzymes • where photosynthesis takes place • jelly like fluid inside of cells • process that does't require oxygen • molecule that stores energy for etc • second stage of cellular respiration • reaction of photosynthesis, no light • ...

physical science crossword puzzle 2022-12-15

physical science crossword puzzle crossword puzzle
Across
  1. the absorbtion of heat
  2. electrons are shared
  3. unequal sharing of electrons
  4. soft metals highly reactive with water
  5. enerrgy required to pull 2 atoms apart
  6. the heat releases
  7. ability to be deformed
  8. electrons in the outermost shell
  9. substances that react
  10. the thickness or runniness of a liquid
  11. temp of melting
  12. substances that form in chem reaction
Down
  1. chemical bonds between atoms are broke
  2. electrons flow in an electron sea
  3. hard metals that are malleable
  4. electrons are given and taken
  5. written form of a chemical reaction
  6. rate the speed of any chem reaction
  7. burns at room temp
  8. temp of boiling
  9. molecules not having a dipol

21 Clues: temp of boiling • temp of melting • the heat releases • burns at room temp • electrons are shared • substances that react • the absorbtion of heat • ability to be deformed • unequal sharing of electrons • molecules not having a dipol • electrons are given and taken • hard metals that are malleable • electrons in the outermost shell • electrons flow in an electron sea • ...

Chemical Reactions 2021-10-06

Chemical Reactions crossword puzzle
Across
  1. humans can eat and drink some
  2. Give out energy as heat light or electrical energy
  3. aqueous solution which has a relatively high percentage of the base
  4. readily give away their hydrogen ions
  5. measures how strong an acid or base a solution is
  6. Are the chemical opposite of acids
  7. is the process in which an electron is removed from a molecule during a chemical reaction
Down
  1. Are the substances at the end of the chemical reaction
  2. Are the substances at the start of the chemical reaction
  3. any material that can be made to react to with other substances
  4. a gradual destruction of materials by a chemical reaction with their environment
  5. Absorb energy from their surroundings
  6. are molecules that contain hydrogen and carbon atoms
  7. Are a group of chemical compounds all with similar properties
  8. a base that dissolves in water

15 Clues: humans can eat and drink some • a base that dissolves in water • Are the chemical opposite of acids • Absorb energy from their surroundings • readily give away their hydrogen ions • measures how strong an acid or base a solution is • Give out energy as heat light or electrical energy • are molecules that contain hydrogen and carbon atoms • ...

Chemical Reaction Vocabulary 2022-03-25

Chemical Reaction Vocabulary crossword puzzle
Across
  1. -chemical reaction that occurs when parts of two ionic compounds are exchanged, making two new compounds
  2. -chemical reaction in which a single compound is broken down into two or more simpler products
  3. -chemical reaction in which two or more substances react to yield a single product
  4. -chemical reaction between acid and a base react to form water and a salt
  5. -chemical reaction when hydrocarbon burns in the presence of oxygen to create carbon dioxide and water vapor
Down
  1. -describes the chemical reaction using chemical formulas and other symbols
  2. -chemical reaction in which one element is substituted for another element in a compound
  3. -chemical equation that only includes the dissociated ions that participate in the reaction, does not include spectator ions
  4. -participates in a chemical reaction and is on the left side of the equation
  5. -formed during the chemical reaction and is on the right side of the equation

10 Clues: -chemical reaction between acid and a base react to form water and a salt • -describes the chemical reaction using chemical formulas and other symbols • -participates in a chemical reaction and is on the left side of the equation • -formed during the chemical reaction and is on the right side of the equation • ...

Chemistry Crossword 2017-02-05

Chemistry Crossword crossword puzzle
Across
  1. A substance that can accept of neutralise hydrogen ions.
  2. A particle that makes up everything.
  3. A substance that speeds or slows down a reaction without getting involved.
  4. A positively charged particle.
  5. The process of decay.
  6. A compound with chemical properties.
  7. The result of a chemical reaction.
  8. The bond of two or more elements.
  9. A negatively charged ion.
  10. a substance that is added to cause a chemical reaction,
Down
  1. Where substances act with each other, or change into a new substance.
  2. Damage caused to a metal or stone.
  3. The process of precipitating a substance from a solution.
  4. A non-charged /neutral particle.
  5. A positively charged ion.
  6. A molecule that can donate a proton or accept a pair of electrons in reactions.
  7. A fast chemical combination of a substance with oxygen.
  8. Elements that occupy a horizontal row on the periodic table.
  9. A negatively charged particle.
  10. The power of combined elements.
  11. A combination of element symbols.
  12. A particle that has lost or gained one or more electrons.
  13. Elements that occupy a column on the periodic table.

23 Clues: The process of decay. • A positively charged ion. • A negatively charged ion. • A positively charged particle. • A negatively charged particle. • The power of combined elements. • A non-charged /neutral particle. • A combination of element symbols. • The bond of two or more elements. • Damage caused to a metal or stone. • The result of a chemical reaction. • ...

Unit B Crossword 2017-11-08

Unit B Crossword crossword puzzle
Across
  1. a chemical reaction in your body
  2. chemical combination of 2 or more elements
  3. a subatomic particle with a negative charge
  4. release of heat
  5. substances that speed up the reaction rate
  6. consists of a nonmetal and a nonmetal
  7. average mass of an element
  8. when oxygen reacts with another substance to form a new substance that gives off energy
  9. a subatomic particle found in every nucleus, except for hydrogen
  10. an irreversible reaction
  11. the most stable and nonreactive nonmetals
Down
  1. earth metals, less reactive than alkali
  2. a new substance produced in a chemical reaction between reactants
  3. absorption of heat
  4. organic catalyst
  5. consists of a metal and a nonmetal
  6. anything on the periodic table
  7. a substance that reacts with another to create a new substance
  8. made up of one type of matter
  9. most reactive metals
  10. can be in between metals and nonmetals
  11. the number of protons of an atom, determines its place on the periodic table
  12. a slow chemical change that occurs when oxygen reacts with metal
  13. most reactive non metals
  14. a subatomic particle with a positive charge

25 Clues: release of heat • organic catalyst • absorption of heat • most reactive metals • most reactive non metals • an irreversible reaction • average mass of an element • made up of one type of matter • anything on the periodic table • a chemical reaction in your body • consists of a metal and a nonmetal • consists of a nonmetal and a nonmetal • can be in between metals and nonmetals • ...

key terms 2022-03-18

key terms crossword puzzle
Across
  1. the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
  2. reaction is a reaction in which energy is absorbed
  3. when the reaction is complete you have new substances called
  4. is material that releaes energy when it burns
  5. property is a characteristic of a substance taht describes its abitly to change into other substance
  6. system matter is not allowed to eneter or leave
  7. a solid that forms from solution during a chemical reaction is called a
  8. of mass this principle is call and it states that during q chemical reaction matter created or destroyed
  9. system matter can enter from or escape to the surroundings
  10. is a number place in foront of a chemcial formula in an eqaution
  11. is a material that increases the rate of a reaction be lowering the activation energy.
  12. anything that has mass and takes up space
Down
  1. change is any change that alter the form or apperance of a substance but that does not make the substance change into another substance.
  2. the substance you have at the beginning are called the
  3. in chemistry when two or more elements or compounds combine to make more complex susbstance the process is called
  4. fire is the result of a rapid reaction between oxygen and a substance called a fuel
  5. when one element replaces another in compound or when two elements in different compounds trade places the process is called
  6. is the amount of a substance in a given volume
  7. energy is the minimum amount of energy needed to start a chemical reaction
  8. in contrast to a synthesis reaction a process called breaks down compounds into simpler products
  9. equation is a short easy way to show chemical reaction unsing symbols instead of words
  10. reaction A change in matter that produces one or more new substances is a chemical change or
  11. a material used to decrease the rate of a reaction is an
  12. property a characteristic of a substance that can be observed without changing the substance into another substance
  13. the cells in your body comtains biological catalysts called

25 Clues: anything that has mass and takes up space • is material that releaes energy when it burns • is the amount of a substance in a given volume • system matter is not allowed to eneter or leave • reaction is a reaction in which energy is absorbed • the substance you have at the beginning are called the • a material used to decrease the rate of a reaction is an • ...

Hon Chem Spring Vocab Part 1 2025-05-13

Hon Chem Spring Vocab Part 1 crossword puzzle
Across
  1. a particle with a charge
  2. Substances that are formed by a chemical change in a chemical reaction
  3. An equality statement in fraction form that helps you convert between units
  4. Position that contains a number that indicates how many atoms are present in a molecule
  5. The mass of a substance expressed in grams per one mole
  6. Refers to standard temperature and pressure and allows application of the constant 22.4 L with regard to gases
  7. A type of chemical reaction in which multiple substances form a single product
  8. Inclusive of all substance potentials: atoms, ions, molecules, and formula units
  9. A type of chemical reaction that involves a single element replaces a second element in a compound
  10. The number of particles present in one mole of substance
  11. The unit of particles for an element
  12. A pair of electrons on the central atom of a molecule that do not participate in bonding
  13. A region on the central atom of a molecule where electrons are most likely to be found (bonding and nonbonding electrons)
  14. A substance that speeds up a reaction but is not used up in the reaction
  15. A type of electron that participates in bonding
  16. A type of reaction where a hydrocarbon reacts with oxygen gas to produce carbon dioxide and water vapor
  17. Substances that are started with at the beginning of a chemical reaction
  18. A bond formed when electrons are transferred from one to another
  19. A number that indicates how many moles of a substance are present in a balanced chemical reaction
  20. Lowest whole number ratio of atoms of the elements in the compound
  21. The unit of particles for a covalent compound
Down
  1. A solid that forms from a reaction between two aqueous solutions
  2. equation that represents what occurs a salt is placed in water
  3. A type of reaction that involves the exchange of cations between to compounds
  4. The unit of particles for an ionic compound
  5. A bond formed when electrons are shared between two atoms
  6. An equation that shows aqueous ionic compounds as dissociated ions
  7. A chart used to predict the states of matter of compounds
  8. Percent by mass of each element in the compound
  9. A chart used to predict if a single replacement reaction will occur based on reactivity
  10. Position that contains a number that indicates the charge of an ion
  11. Diagram that shows the valence electrons of an atom
  12. The same as the empirical formula or a whole number multiple of its empirical formula
  13. The crux of the mole map that allows for conversions between mass, volume, and particles
  14. A type of chemical reaction in which a single substance breaks down into multiple substances
  15. A solution in which a solid is dissolved in water

36 Clues: a particle with a charge • The unit of particles for an element • The unit of particles for an ionic compound • The unit of particles for a covalent compound • Percent by mass of each element in the compound • A type of electron that participates in bonding • A solution in which a solid is dissolved in water • Diagram that shows the valence electrons of an atom • ...

What's Hot? 2014-09-23

What's Hot? crossword puzzle
Across
  1. base that can dissolve in water
  2. a substance which has a solute dissolved in it
  3. a solution with a small amount of solute and a large amount of solute
  4. can burn or eat away a material
  5. a scale used to measure acidity
  6. a solution with a large amount of solute in a solvent
  7. an insoluble substance formed from the combination of two solutions
  8. symbols which represent a compound or element
  9. a positively charged ion
  10. the substances combined in a chemical reaction
  11. a compound formed in a neutralisation reaction
  12. a process or reaction which takes in energy
  13. a negatively charged ion
Down
  1. substance with a high pH
  2. two or more atoms joined together as a unit
  3. a solution formed when a solute dissolves in water
  4. a process or reaction which gives out energy
  5. an atom or group of atoms that has lost or gained electrons
  6. substance made up of two or more elements
  7. reaction between an acid and a base
  8. a shorthand way of representing a chemical reaction
  9. a substance made up of one type of atom
  10. the new substances formed after a chemical reaction
  11. a substance which is dissolved in a solution
  12. corrosive substance with a low pH
  13. letter or letters that represent and element

26 Clues: substance with a high pH • a positively charged ion • a negatively charged ion • base that can dissolve in water • can burn or eat away a material • a scale used to measure acidity • corrosive substance with a low pH • reaction between an acid and a base • a substance made up of one type of atom • substance made up of two or more elements • ...

KS3 Unit 8 - Chemical Reactions 2025-07-17

KS3 Unit 8 - Chemical Reactions crossword puzzle
Across
  1. a chemical compound containing only hydrogen and carbon.
  2. articulates small particles of carbon made during incomplete combustion also known as soot.
  3. how easily a material is rolled out into a sheet without breaking.
  4. mistakes in results due to human judgement or poor control of variables.
  5. a solution that contains as much dissolved solid as it possibly can.
  6. a reaction displayed using the chemical symbols of the substances involved.
  7. a common acid.
  8. a reaction in which new substances are made.
  9. chemical reaction where a substance is broken down into at least two new substances when heated.
  10. the process by which a solid forms, where the atoms or molecules are highly organised into a structure known as a crystal.
  11. material which light can travel through.
  12. combustion with a very limited supply of oxygen, that produces carbon particulates and water.
  13. a chemical that can break up large molecules.
  14. red or blue paper used to test for acids and alkalis.
  15. a substance containing two or more elements that are not chemically joined.
  16. produces a ringing sound when hit.
  17. caused by excess acid being produced in the stomach and escaping to areas where cells are not protected from it.
  18. a chemical that changes colour depending on how acidic or alkaline a liquid is.
  19. combustion with a limited supply of oxygen, that produces carbon monoxide and water.
  20. a common acid. Used in car batteries.
  21. alkali pH 11 – 14.
  22. a chemical which speeds up the rate of a reaction without being used up in the reaction.
  23. a base that dissolves in water.
  24. easily broken.
  25. when a liquid turns into a gas.
  26. a part, share, or number considered in comparative relation to a whole.
  27. a mixture of indicators giving a different colour depending on how weak or strong an acid or alkali is.
  28. liquid liquid that is red in acids, purple in neutral and blue in alkalis.
  29. the useful product in a chemical reaction.
  30. a reaction between an acid and a base (or alkali) that makes a solution with a pH of 7. A salt and water are produced.
  31. an exothermic reaction that gives out lots of energy or a reaction that produces a gas very quickly making lots of bubbles. If the gas is flammable, it could ignite or be explosive.
  32. how easily a material is drawn out into thin wire without breaking.
  33. something that is used to describe how a material behaves and what it is like. Strength is a property of some solids.
  34. a way of describing a reaction using chemical formula showing the correct numbers of molecules involved to show conservation of mass.
  35. a process or reaction that releases energy from the system to its surroundings, usually in the form of heat or light.
  36. pH 8 – 10.
Down
  1. when a shiny metal gets a dull coating due to the reaction with oxygen.
  2. the acid in vinegar.
  3. something that irritates the skin and eyes.
  4. reaction of a substance with oxygen to produce a compound containing oxygen (oxygen has been ‘added’ to the original substance).
  5. substances that attack metals, stonework and skin are called corrosive.
  6. chemicals in a mixture that are undesirable.
  7. symptoms such as pain in the chest.
  8. contains OH e.g. sodium hydroxide NaOH.
  9. a burning reaction, when a fuel combines with oxygen and releases energy.
  10. mass is not created or lost in a chemical reaction.
  11. substance that is neither an acid nor an alkali. It has a pH of 7.
  12. a solid chemical that reacts with an acid to form a salt and water.
  13. the smallest part of an element.
  14. weak acid in some insect stings.
  15. a chemical compound that contains one carbon atom and three oxygen atoms (CO3).
  16. safe to eat.
  17. pH 0 – 3.
  18. the strong force of attraction holding atoms together in a molecule.
  19. when a gas is being given out, bubbling and fizzing is observed.
  20. too much of something.
  21. treat acidic soil with lime to increase the pH and ensure better growth of certain crops.
  22. a compound made when acids react with metals or bases. Many salts are chlorides, sulphates or nitrates. Common salt is sodium chloride.
  23. a machine to measure pH in solutions, reduces random errors and can determine pH to decimal numbers.
  24. a common acid that is found in your stomach.
  25. substances that can be split into simpler substances.
  26. chemicals that form new substances during a chemical reaction.
  27. solution pH > 7, formed when an alkali dissolves in water.
  28. iron oxide – a flaky red compound formed when iron reacts with oxygen.
  29. a substance that turns litmus red. It has a pH of less than 7.
  30. un unfavourable circumstance or condition that reduces the chances of success or effectiveness.
  31. a toxic molecule that binds irreversibly with red blood cells and stops them carrying oxygen.
  32. anything that stores energy that can be converted into heat energy, e.g. fossil fuels and nuclear fuels.
  33. chemical reactions to aid in the manufacturing of an item or items, usually carried out on a very large scale.
  34. a reaction displayed in words.
  35. a new chemical formed in a chemical reaction.
  36. a substance that cannot be split up into anything simpler by chemical reactions. All the atoms in an element are the same.
  37. the set of metallic elements occupying the central block of the periodic table.
  38. unable to be bent or forced out of shape.
  39. does not have a smell.
  40. a chemical reaction that takes in energy from the surroundings (often heat), leading to a fall in temperature.
  41. the acid in citrus fruits.
  42. pH 4 – 6.

78 Clues: pH 0 – 3. • pH 4 – 6. • pH 8 – 10. • safe to eat. • a common acid. • easily broken. • alkali pH 11 – 14. • the acid in vinegar. • too much of something. • does not have a smell. • the acid in citrus fruits. • a reaction displayed in words. • a base that dissolves in water. • when a liquid turns into a gas. • the smallest part of an element. • weak acid in some insect stings. • ...

Acids, alkalis and hazards 2023-02-07

Acids, alkalis and hazards crossword puzzle
Across
  1. set of rules for writing a word equation
  2. solutions that do not change the colour of indicators
  3. the starting substance in a chemical reaction
  4. a product of neutralisation
  5. destroy or damage from chemical reaction
  6. when an acid and alkali are mixed together and cancel each other out
  7. a substance that is formed from a chemical reaction
  8. the value that determines how acidic or alkaline a substance is
  9. something that can minor harm
  10. these substances catch fire easily
  11. poisonous and can cause death
Down
  1. used to describe chemical reactions
  2. changes colour with different pH of substances
  3. more dangerous than a pure substance
  4. low number on the pH scale
  5. less dangerous than corrosive or toxic, may cause irritation
  6. watered down to make it less dangerous
  7. heating may cause explosive
  8. something that can cause harm
  9. high number on the pH scale

20 Clues: low number on the pH scale • a product of neutralisation • heating may cause explosive • high number on the pH scale • something that can cause harm • something that can minor harm • poisonous and can cause death • these substances catch fire easily • used to describe chemical reactions • more dangerous than a pure substance • watered down to make it less dangerous • ...

Biology Vocab 2020-12-17

Biology Vocab crossword puzzle
Across
  1. substances made from large molecules
  2. building blocks of lipids
  3. substance formed after a chemical reaction
  4. building block for polymers
  5. substance that provides H atoms
  6. substance that solvent dissolves in
  7. smallest unit of matter
  8. macromolecule that is important to DNA&RNA
  9. bond where electrons are donated
  10. building blocks of proteins
  11. biological catalyst
  12. substance that can be added to speed up chemical reactions
  13. substance changing in a chemical reaction
Down
  1. molecule that can dissolve in others
  2. two or more atoms bonded together
  3. a nonpolar macromolecule
  4. amount needed to start a chemical reaction
  5. mixture or solvent & solute
  6. bond where electrons are shared
  7. macromolecules consisting of amino acid chains
  8. macromolecule consisting of CHO
  9. substance that consists of 2 or more elements
  10. Substance that cannot be broken down chemically
  11. compound that produces H ions
  12. molecule that lost a valence electron

25 Clues: biological catalyst • smallest unit of matter • a nonpolar macromolecule • building blocks of lipids • mixture or solvent & solute • building block for polymers • building blocks of proteins • compound that produces H ions • bond where electrons are shared • substance that provides H atoms • macromolecule consisting of CHO • bond where electrons are donated • ...

Chemistry Unit 3 2023-12-21

Chemistry Unit 3 crossword puzzle
Across
  1. equipment used to test pH value of an acid or alkali
  2. element symbol Li
  3. reaction when a more reactive element dsiplaces a less reactive element
  4. a base that can be dissolved in water
  5. _________ change that can be reversed
  6. reaction when energy is given out to the surrounding
  7. _______indicator used to test for an acid or alkali
  8. element symbol Ca
  9. _________ acid with a chemical formula HNO3
  10. state symbol (s)
Down
  1. element symbol Mg
  2. element in group 3 on the reactivity series
  3. ________ acid with a chemical formula HCl
  4. ___________ change that cannot be reverse
  5. reaction when energy is taken in from the surroundings
  6. most reactive element on the reactivity series
  7. _________ paper used to test for an acid of alkali
  8. least reactive element on the reactivity series
  9. ___________ acid with a chemical formulae H2SO4
  10. can go back to what you started with
  11. state symbol (l)
  12. state symbol (g)

22 Clues: state symbol (l) • state symbol (g) • state symbol (s) • element symbol Mg • element symbol Li • element symbol Ca • can go back to what you started with • a base that can be dissolved in water • _________ change that can be reversed • ________ acid with a chemical formula HCl • ___________ change that cannot be reverse • element in group 3 on the reactivity series • ...