chemical reaction Crossword Puzzles

08CW-Reaction Vocabulary 2024-01-22

08CW-Reaction Vocabulary crossword puzzle
Across
  1. Solid that forms from a solution Ex. Milk & vinegar = cottage cheese
  2. Left of arrow; substance that participates in a reaction
  3. Group of symbols that show the number and kinds of atoms in a compound Ex. CO2
  4. yields (-->) in chemical reaction; means “reacts to produce”
  5. Energy(usually heat) is ABSORBED and required for a chemical reaction
Down
  1. Chemical bonds between atoms are broken or formed creating new substances with different properties
  2. Represents a chemical reaction using symbols to show a relationship between reactants and products
  3. Energy(usually heat) is RELEASED to the surroundings in a chemical reaction
  4. Law Conservation of ___(Law COE)states Energy is not created or destroyed…it only changes forms
  5. Law Conservation of ___(Law COM)states Mass is not created or destroyed…it only changes forms
  6. Changes in temperature, sound, or light
  7. Right of arrow; substance that is formed

12 Clues: Changes in temperature, sound, or light • Right of arrow; substance that is formed • Left of arrow; substance that participates in a reaction • yields (-->) in chemical reaction; means “reacts to produce” • Solid that forms from a solution Ex. Milk & vinegar = cottage cheese • Energy(usually heat) is ABSORBED and required for a chemical reaction • ...

Equilibrium Crossword 2024-04-23

Equilibrium Crossword crossword puzzle
Across
  1. chemical reaction where the reactants form products that react together to give the reactants back
  2. relationship that states that in an equilibrium mixture, there exists a condition linking the product and reaction concentrations
  3. the reactants and the products in the equilibrium mixture are in the same phase
  4. heat is absorbed by the system from the surroundings
  5. the speed at which a chemical reaction takes place
  6. the measurement of energy in a thermodynamic system
  7. if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium
  8. the substance that is present at the end of a chemical reaction
Down
  1. releases heat, causing the temperature of the immediate surroundings to rise
  2. number that expresses the relationship between amounts of products and reactants present at equilibrium
  3. natural physical system that does not allow for transfer of matter in or out of the system
  4. the state of the equilibrium in a system that has components in more than one phase
  5. the state in which both the reactants and products are present in concentrations
  6. a measure of the relative amounts of products and reactants present in a reaction at a given time
  7. process combining nitrogen air with hydrogen derived mainly from methane into ammonia
  8. the minimum amount of extra energy required by a reacting molecule to be converted
  9. the substances which participate in a chemical reaction

17 Clues: the speed at which a chemical reaction takes place • the measurement of energy in a thermodynamic system • heat is absorbed by the system from the surroundings • the substances which participate in a chemical reaction • the substance that is present at the end of a chemical reaction • releases heat, causing the temperature of the immediate surroundings to rise • ...

Reactions 2 crossword - LMH 2021-07-19

Reactions 2 crossword - LMH crossword puzzle
Across
  1. A substance used to make another substance in a chemical reaction (8)
  2. An image used to show atoms before and after chemical reactions (8,7)
  3. Greenhouse ___ (3)
  4. With heat (7)
  5. Is a cold pack exothermic or endothermic? (11)
  6. Acronym used to remember the difference between exothermic and endothermic reactions (9)
  7. A substance made from other substances in a chemical reaction (7)
Down
  1. A reaction that separates the particles of a substance (13)
  2. A substance that stores energy chemically (4)
  3. Nitrogen + oxygen (8,8)
  4. CO2 (6,7)
  5. A fuel that can't be used faster than it is made/found/mined (9)
  6. New energy source commonly used in cars
  7. Conserved during both chemical reactions and physical changes (4)
  8. The substance that group 2 of the periodic table make when thermally decomposed (7)

15 Clues: CO2 (6,7) • With heat (7) • Greenhouse ___ (3) • Nitrogen + oxygen (8,8) • New energy source commonly used in cars • A substance that stores energy chemically (4) • Is a cold pack exothermic or endothermic? (11) • A reaction that separates the particles of a substance (13) • A fuel that can't be used faster than it is made/found/mined (9) • ...

Chemical Reactions 2015-11-19

Chemical Reactions crossword puzzle
Across
  1. CO2
  2. Exothermic reaction
  3. process of macro-molecules breaking down
  4. where starch breaks down into glucose
  5. what you end up with
  6. H2O
  7. what you start with
  8. energy used in photosynthesis
Down
  1. where photosynthesis takes place
  2. O2
  3. where cellular respiration takes place
  4. energy needed to start a reaction
  5. they speed up the rate of a reaction
  6. sum of all chemical reactions in the body
  7. the material an enzyme works on
  8. absorbs heat
  9. releases heat
  10. Endothermic reaction
  11. C6H12O6
  12. energy created in cellular respiration

20 Clues: O2 • CO2 • H2O • C6H12O6 • absorbs heat • releases heat • Exothermic reaction • what you start with • Endothermic reaction • what you end up with • energy used in photosynthesis • the material an enzyme works on • where photosynthesis takes place • energy needed to start a reaction • they speed up the rate of a reaction • where starch breaks down into glucose • ...

Biology Chemistry of Life 2.3 & 2.4 2021-10-01

Biology Chemistry of Life 2.3 & 2.4 crossword puzzle
Across
  1. organic compound that is a source of energy
  2. process that changes one set of chemicals into another set of chemicals
  3. Compounds that contain carbon
  4. organic compounds that function as long term energy storage
  5. The reactants that bind to an enzyme
Down
  1. organic compound that stores genetic information
  2. Energy needed to get a reaction started
  3. fats, oils, and waxes
  4. DNA and RNA
  5. elements or compounds that enter into a chemical reaction
  6. proteins that act as biological catalysts
  7. substance that speeds up the rate of a chemical reaction
  8. organic compound that controls the rate of reactions, regulates cell processes, and fights diseases
  9. The elements or compounds produced by a chemical reaction.
  10. monomer of protein

15 Clues: DNA and RNA • monomer of protein • fats, oils, and waxes • Compounds that contain carbon • The reactants that bind to an enzyme • Energy needed to get a reaction started • proteins that act as biological catalysts • organic compound that is a source of energy • organic compound that stores genetic information • substance that speeds up the rate of a chemical reaction • ...

Formulas and Reactions Crossword Puzzle 2023-10-06

Formulas and Reactions Crossword Puzzle crossword puzzle
Across
  1. a change where heat is absorbed
  2. the small number to the right of an element symbol, that represents the number of atoms of an element in one molecule of a substance
  3. the formation of a new substance with different properties; cannot be undone by physical means
  4. the formation of solids in a solution, as a result of a chemical reaction
  5. a change where heat is released
  6. a change caused by the interaction of two or more substances (reactants) resulting in the formation of new substances (products)
  7. new substance formed as a result of a chemical reaction
Down
  1. a representation of a molecule or compound in which the elements are represented by their symbols and subscripts represent the number of atoms of each element
  2. a substance made of more than two atoms
  3. a pure substance made of one kind of atom
  4. the large number to the left of a chemical formula, that represents the number of molecules of that substance in reaction
  5. starting substance in a chemical reaction
  6. a symbol that represents an element, where the first letter is capitalized and the second (if present) is lowercase
  7. a representation of a chemical reaction by symbols and numbers
  8. a pure substance that is made of more than one type of atom

15 Clues: a change where heat is absorbed • a change where heat is released • a substance made of more than two atoms • a pure substance made of one kind of atom • starting substance in a chemical reaction • new substance formed as a result of a chemical reaction • a pure substance that is made of more than one type of atom • ...

Ionic Compounds 2025-01-07

Ionic Compounds crossword puzzle
Across
  1. The seven diatomic elements can be combined to make the word ___
  2. Suffix added to the end of nonmetals to signify they have a charge
  3. A charged particle
  4. chemical reaction in which two or more products combine to make one compound
  5. One compound is broken down into two or more products
  6. Substance that is a result of a chemical reaction
  7. A chemical equation that has had the amounts of ions and compounds adjusted to be even on both sides has been ___
  8. A metal with a positive charge
  9. A nonmetal with a negative charge
Down
  1. One element replaced with another in a compound producing a new compound and a single ion
  2. Two compounds exchanging ions two create two new compounds
  3. A chemical compound made up of metals and nonmetals
  4. The charge of all ionic compounds
  5. Acid and base reacting to form a salt and water
  6. Substance being changed in a chemical reaction
  7. A hydro carbon reacting with oxygen to produce carbon dioxide and water

16 Clues: A charged particle • A metal with a positive charge • The charge of all ionic compounds • A nonmetal with a negative charge • Substance being changed in a chemical reaction • Acid and base reacting to form a salt and water • Substance that is a result of a chemical reaction • A chemical compound made up of metals and nonmetals • ...

Vocab 2024-04-30

Vocab crossword puzzle
Across
  1. A biomolecule refers to any molecule that is produced by living organisms
  2. A substance taking part in a chemical reaction.
  3. A compound made up of several repeating units
  4. Any of the molecules produced by living organisms
  5. is a biomolecule that can be synthesized biologically
  6. can be defined as building blocks of a polymer
  7. A substance capable of initiating or speeding up a chemical reaction
  8. Any of the group of a long chain of hydrocarbon with a carboxylic acid at the beginning and a methyl end
  9. A colorless, odorless, gaseous element, represented by the symbol “N”, with an atomic number of 7 and an atomic weight of 14.0067
  10. A biomolecule refers to any molecule that is produced by living organisms
Down
  1. the building blocks of polypeptides and proteins and play important roles in metabolic pathway
  2. a molecule acted upon by an enzyme
  3. The sugar component in the side chains of DNA
  4. deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Both play a central role in every function of every living organism
  5. The specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs
  6. A chemical reaction in which the interaction of a compound with water results in the decomposition of that compound.
  7. biomolecules composed of amino acid
  8. one of the chemical elements found in nature
  9. Anything that is produced
  10. The amount of energy (in joules) needed to convert all the molecules in one mole of a reacting substance from a ground state to the transition state intermediate

20 Clues: Anything that is produced • a molecule acted upon by an enzyme • biomolecules composed of amino acid • one of the chemical elements found in nature • The sugar component in the side chains of DNA • A compound made up of several repeating units • can be defined as building blocks of a polymer • A substance taking part in a chemical reaction. • ...

Enthalpy 2025-12-17

Enthalpy crossword puzzle
Across
  1. A common measuring unit for amount of a substance in chemistry.
  2. The sum of all relative atomic masses of individual elements within a chemical molecule.
  3. The temperature at which a solid substance changes its state into liquid.
  4. A state of matter in which the particles are closely packed, resulting in the strongest intermolecular forces and a fixed shape and volume.
  5. The mixture between the solute and the solvent.
  6. The process of turning a substance from liquid state to solid state.
  7. A measuring parameter which is defined as molar amount of a substance per a volume unit. Unit of this parameter is typically mol L–1 or M.
  8. The original concentrated solution which is used as a source to prepare other diluted solutions (Hint: starting with letter s).
  9. The process of turning a substance (solid, liquid compound) into individual gaseous atoms.
  10. The ratio that show how many times a solution has been diluted.
  11. Every other part of the universe around the system.
  12. The temperature at which a liquid substance changes its state into gas.
  13. The actual yield of product from a chemical reaction, which is obtained from experimental measurement.
  14. A type of reaction in which energy is absorbed into the system from the surroundings (∆H > 0).
  15. The highest point on the energy profile diagram.
Down
  1. The anticipated yield of product from a chemical reaction, which is obtained from theoretical calculation, rather than from experimental measurement.
  2. The process of turning a substance from liquid state to gas state.
  3. the process of turning a substance from gas state to liquid state.
  4. The amount of product produced at the end of a chemical reaction.
  5. The substance that is dissolved into a solvent to produce a solution.
  6. The process of turning a substance from solid state to liquid state.
  7. The average energy to break one mole of a specific type of bond in a gaseous molecule.
  8. The minimal amount of energy required to activate the reactants to initiate a reaction.
  9. The reactant that is completed used up first in a chemical reaction is called _________ reactant? (Hint: starting with letter l).
  10. The process of turning a substance from solid state to gas state without passing through liquid state.
  11. The substance that can dissolve other substances to produce a solution.
  12. The process of burning a chemical substance in presence of oxygen gas (Hint: starting with letter c).
  13. A state of matter in which particles are far apart and move randomly, resulting in minimal intermolecular forces and neither a fixed shape nor a fixed volume.
  14. A quantitative technique to measure heat change that occur during a physical or chemical process. This is done by using a calorimeter.
  15. The process of turning a substance from gas state to solid state without passing through liquid state.
  16. Heat content within a system. Symbol is H.
  17. The numbers placed in front of chemical formulas in a balanced equation. These numbers indicate the compositional ratio of all the species involved in the reaction.
  18. A type of reaction in which energy is released from the system into the surroundings (∆H < 0).
  19. Another similar term for “deposition”.
  20. 6.022×1023 is also known as the _________’s constant.
  21. The action of making the concentration of a solution lower.
  22. A specific part of the universe that is being measured or considered.
  23. A state of matter in which particles are close together but can slide past one another, resulting in moderate intermolecular forces and a definite volume but with no fixed shape.
  24. The mass of one mole of substance.
  25. The study of quantitative relationships between reactants and products within chemical reactions (Hint: starting with letter s).
  26. The reactant that is used in excessive amount in a chemical reaction is called _________ reactant? (Hint: starting with letter e).

41 Clues: The mass of one mole of substance. • Another similar term for “deposition”. • Heat content within a system. Symbol is H. • The mixture between the solute and the solvent. • The highest point on the energy profile diagram. • Every other part of the universe around the system. • 6.022×1023 is also known as the _________’s constant. • ...

Konner Deck Chapter 13 2017-10-04

Konner Deck Chapter 13 crossword puzzle
Across
  1. the new materials formed in a chemical bond
  2. a substance that accepts hydrogen ions
  3. the reacting substances in a chemical reaction
  4. the process by which a reactant loses one or more electrons
  5. a substance that donates hydrogen ions
  6. description of a chemical reaction in which there is a net absortion of energy
  7. a rapid exothermic oxidation-reduction reaction between a material and molecular oxygen
Down
  1. the deteriation of a metal,typically caused by atmospheric oxygen
  2. a reaction between a acid and a base
  3. description of a chemical reaction is which there is a net release of energy
  4. the process by which a reactant gains one or more electrons

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

Chapter 3 Science Crossword 2025-04-23

Chapter 3 Science Crossword crossword puzzle
Across
  1. Atoms are airy but not totally bonded together
  2. The measure of the amount of matter in an object
  3. Iron rusting is what type of change?
  4. When water changes from a liquid to a solid, it...
  5. ...is often needed for a chemical reaction to take place
  6. When ice changes from a solid to a liquid, it...
  7. Atoms are closest together in a...
  8. ...is anything that has mass or takes up space.
  9. Water forms heat bubbles in this process
Down
  1. The total mass after a chemical reaction is the same as the total mass after a chemical reaction.
  2. All chemical reactions involve...
  3. When you put salt in water, it...
  4. Grating an apple cannot be...
  5. Ice cream melting is what type of change??
  6. Atoms are farthest apart in a...

15 Clues: Grating an apple cannot be... • Atoms are farthest apart in a... • All chemical reactions involve... • When you put salt in water, it... • Atoms are closest together in a... • Iron rusting is what type of change? • Water forms heat bubbles in this process • Ice cream melting is what type of change?? • Atoms are airy but not totally bonded together • ...

Genes Reactions Y8 2024-05-16

Genes Reactions Y8 crossword puzzle
Across
  1. The term used to describe the shape of DNA.
  2. The scientific word used for burning.
  3. Animal DNA including sperm and eggs are stored in a __________ __________.
  4. Humans have 23 pairs (46 total) of these in normal body cells.
  5. The term used to describe the substances that start a chemical reaction.
  6. ____________________ programs can help preserve animals.
  7. When there are no individuals of this species anywhere on Earth an organism is _______________.
  8. The gas required to be present for a substance to burn.
  9. The type of reaction that takes in energy and gets colder.
  10. The _________ of the reactants = the __________ of the products.
  11. Plant seeds are stored in a ___________ __________.
  12. The type of reaction where a substance changes state e.g. Ice melting
  13. Another name for an energy level diagram is a reaction ____________.
  14. The process by which organisms adapt to their environment over many years (survival of the fittest).
  15. The term used to describe the substances that are made in a chemical reaction.
  16. The word to describe the variety of organisms on earth, or an ecosystem.
  17. The scientist who wrote "On the Origin of Species"
Down
  1. An everyday use of an endothermic reaction.
  2. The unit for energy.
  3. Two of these versions of genes are required to have this characteristic.
  4. There is _________________ between organisms of the same species.
  5. A gene codes for a ___________________________.
  6. This gas is released during combustion and contributes to global warming.
  7. The term for different versions of the same gene.
  8. A small section of DNA.
  9. The term for an organism at risk of becoming extinct.
  10. Coal oil and gas are examples of _____________ ____________.
  11. The type of reaction that releases energy and gets warmer.
  12. An everyday use of an exothermic reaction.
  13. Only one of these version of genes is required to have this characteristic.
  14. The type of reaction where a new substance is produced.

31 Clues: The unit for energy. • A small section of DNA. • The scientific word used for burning. • An everyday use of an exothermic reaction. • The term used to describe the shape of DNA. • An everyday use of an endothermic reaction. • A gene codes for a ___________________________. • The term for different versions of the same gene. • ...

Energy 2023-05-17

Energy crossword puzzle
Across
  1. point The temperature at which a solid turns to a liquid
  2. A substance gets combined with other substance in a chemical reaction
  3. The resistance that one surface or object encounters when moving over another
  4. The relative resistance of a metal
  5. Heat transfer from one object to another
  6. Materials that transfer heat well
  7. Substance reaction quickly with oxygen to produce light and heat
  8. The natural agent that stimulates sight and makes things visible
  9. Stored energy that depends upon the relative position of various parts of a system
  10. Scientific study of the properties and behavior of matter
Down
  1. Materials that does not transfer heat well
  2. Transfer of heat from one place to another by movement
  3. Formed due to a chemical reaction between two or more chemical substances
  4. Relating to or resulting from motion
  5. bonds What holds atoms together in molecules
  6. Transfer heat by electronic waves
  7. Ability of a substances to rust
  8. point The temperature at which a liquid turns to a gas
  9. The energy generated by the movement of electrons from one point to another
  10. The quality of being hot

20 Clues: The quality of being hot • Ability of a substances to rust • Materials that transfer heat well • Transfer heat by electronic waves • The relative resistance of a metal • Relating to or resulting from motion • Heat transfer from one object to another • Materials that does not transfer heat well • bonds What holds atoms together in molecules • ...

Chemical Reactions 2024-01-19

Chemical Reactions crossword puzzle
Across
  1. Fuel + oxygen --> _____________ + water.
  2. Potassium + water --> potassium ___________ + hydrogen.
  3. Something that speeds up a chemical reaction.
  4. A chemical reaction that takes in energy.
  5. A chemical reaction that gives off energy.
Down
  1. Magnesium + hydrochloric acid --> magnesium ________ + hydrogen
  2. iron + oxygen --> iron ________.
  3. The gas made when a metal reacts with an acid.
  4. The noise made when you test for hydrogen.
  5. The scientific word for burning.
  6. The type of reaction where a more reactive metal steals from another due to its reactivity.
  7. What happens to limewater when you pump carbon dioxide through it.

12 Clues: iron + oxygen --> iron ________. • The scientific word for burning. • Fuel + oxygen --> _____________ + water. • A chemical reaction that takes in energy. • The noise made when you test for hydrogen. • A chemical reaction that gives off energy. • Something that speeds up a chemical reaction. • The gas made when a metal reacts with an acid. • ...

Unit 9 2025-03-21

Unit 9 crossword puzzle
Across
  1. Conversion The process of converting between moles of different substances using mole ratios from a balanced chemical equation.
  2. Particles The smallest units of a substance, such as atoms, molecules, or formula units, that retain the substance's properties.
  3. Coefficients The numbers in a balanced chemical equation that indicate the proportions of reactants and products in a reaction.
  4. Ratio The ratio of moles of one substance to moles of another in a balanced chemical equation.
  5. of Definite Proportions A principle stating that a given chemical compound always contains its component elements in fixed ratios by mass.
  6. Reactant The reactant that is completely consumed in a chemical reaction, determining the maximum amount of product that can be formed.
  7. Gas Law The equation PV = nRT, which describes the behavior of an ideal gas.
  8. to Moles Conversion The process of converting mass (grams) to moles.
  9. Number The number of particles (6.022 × 10²³) in one mole of a substance.
Down
  1. The amount of solute present in a given quantity of solvent or solution, often expressed in molarity (moles per liter).
  2. A form of matter that has a constant chemical composition and distinct properties, either an element or a compound.
  3. Formula The simplest whole-number ratio of atoms of each element in a compound.
  4. A unit of measurement in chemistry representing 6.022 × 10²³ particles (atoms, molecules, or ions) of a substance.
  5. Analysis A mathematical technique used to convert units by using conversion factors based on relationships between units.
  6. Reaction A process in which substances (reactants) undergo chemical changes to form new substances (products).
  7. The quantitative relationship between reactants and products in a chemical reaction, based on balanced chemical equations.
  8. Volume The volume occupied by one mole of a gas at standard temperature and pressure (STP), which is approximately 22.4 liters for an ideal gas.
  9. Composition The percentage by mass of each element in a compound.
  10. Formula The actual number of atoms of each element in a molecule of a compound, which may be a multiple of the empirical formula.
  11. Mass The mass of one mole of a substance, expressed in grams per mole (g/mol), equivalent to the sum of the atomic masses of its constituent atoms.

20 Clues: Composition The percentage by mass of each element in a compound. • to Moles Conversion The process of converting mass (grams) to moles. • Number The number of particles (6.022 × 10²³) in one mole of a substance. • Gas Law The equation PV = nRT, which describes the behavior of an ideal gas. • ...

COLLISION THEORY 2024-10-11

COLLISION THEORY crossword puzzle
Across
  1. ... energy is the minimum amount of energy that must be available to reactants for a chemical reaction to occur.
  2. ... of reaction shows how fast a product is formed or a reactant is consumed in a chemical reaction.
  3. The reaction runs slower at ... temperatures
  4. The more ... the solution, the more frequent the collisions.
  5. Theory states that the reacting particles must collide for a chemical reaction to occur.
  6. The molecules have ... kinetic energy in higher temperature
Down
  1. The ... particle of solids the greater the surface area
  2. Using a ... makes a reaction run faster than using a lump.
  3. Adding a ... will increase the activation energy
  4. ... are examples of catalysts
  5. The concentration doesn't affect the rate of reaction when the order of reaction equal to ...
  6. In second-order reactions, .... the concentration will increase the rate four times.
  7. A lump has a ... surface area than powdered solid particles

13 Clues: ... are examples of catalysts • The reaction runs slower at ... temperatures • Adding a ... will increase the activation energy • The ... particle of solids the greater the surface area • Using a ... makes a reaction run faster than using a lump. • A lump has a ... surface area than powdered solid particles • ...

Chemical Reactions 2016-10-23

Chemical Reactions crossword puzzle
Across
  1. the breakdown of metals due to their reaction with other chemicals
  2. highly combustible chemicals; petrol is a mixture of hydrocarbons
  3. endothermic reaction that takes place in green plants
  4. chemicals that take part in a chemical reaction they are written on the left side of the arrow
  5. a chemical reaction that absorbs energy
Down
  1. a reaction of an acid with a base, forming a salt and water
  2. a way of protecting aluminium from corrosion, by deliberately creating a layer of aluminium oxide over it
  3. chemicals produced in a chemical reaction they are written on the right hand side of the arrow
  4. simple written description of what is happening in a reaction
  5. hydrated iron
  6. rain that has acids such as nitric acid and sulfuric acid dissolved in it
  7. a biological catalyst that speeds up a reaction

12 Clues: hydrated iron • a chemical reaction that absorbs energy • a biological catalyst that speeds up a reaction • endothermic reaction that takes place in green plants • a reaction of an acid with a base, forming a salt and water • simple written description of what is happening in a reaction • highly combustible chemicals; petrol is a mixture of hydrocarbons • ...

Chemistry crossword 2021-07-13

Chemistry crossword crossword puzzle
Across
  1. brown flake substance acquires on the surface of iron after long exposure to moisture is ?
  2. When Carbon Dioxide passes through lime water it turns lime water?
  3. Fatty foods become rancid due to the process of __
  4. __ gas is filled in packet of chips to prevent rancidity
  5. change in state is _ reaction
  6. ___agent reduces the other reactant and oxidizes itself
  7. we should never change __ of formula
  8. aqueous solution of sodium chloride is known as?
  9. oxidation of fats and oils which makes the smell and taste bad is known as?
  10. plaster of paris changes to _ on mixing with water
Down
  1. Equation which doesn't follow the law of conservation of mass
  2. PH stands for ___in German meaning power
  3. ___Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound
  4. On heating calcium carbonate turns into calcium __
  5. Respiration is example of _ reaction?
  6. Gas evolved when zinc reacts with dilute HCL
  7. Oxide of which element is used as major ingredient in cement
  8. white silver chloride changes into ___colour when exposed to sunlight
  9. hydrogen gas burns with __ sound
  10. What does the symbol (aq) represent in a chemical equation

20 Clues: change in state is _ reaction • hydrogen gas burns with __ sound • we should never change __ of formula • Respiration is example of _ reaction? • PH stands for ___in German meaning power • Gas evolved when zinc reacts with dilute HCL • aqueous solution of sodium chloride is known as? • Fatty foods become rancid due to the process of __ • ...

Jakarye2.1 vocab 2021-10-26

Jakarye2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives energy
  2. the substance present before a chemical reaction
  3. a chemical reaction that absorbs energy
  4. a chemical reaction
Down
  1. a chemical change
  2. the substances that are formed during a chemical reaction
  3. a change in matter
  4. material that has mass

8 Clues: a chemical change • a change in matter • a chemical reaction • material that has mass • chemical reaction that gives energy • a chemical reaction that absorbs energy • the substance present before a chemical reaction • the substances that are formed during a chemical reaction

Physical and Chemical Changes 2017-09-20

Physical and Chemical Changes crossword puzzle
Across
  1. reaction the reaction in which heat is released
  2. change substance undergoes changes only in its physical properties
  3. the process of depositing a layer of zinc on iron
  4. reaction is a reaction in which two or more substances combine to form a single substance
Down
  1. original substances participating in a chemical reaction
  2. reaction is an another word for chemical change
  3. reaction the reaction in which heat is absorbed
  4. reaction is one in which a compound breaks up into two or more substances
  5. the new substance formed in a chemical reaction

9 Clues: reaction is an another word for chemical change • reaction the reaction in which heat is absorbed • reaction the reaction in which heat is released • the new substance formed in a chemical reaction • the process of depositing a layer of zinc on iron • original substances participating in a chemical reaction • ...

Hannah Damaske - Ch. 13 Crossword 2021-12-01

Hannah Damaske - Ch. 13 Crossword crossword puzzle
Across
  1. substance that lowers the activation energy of a chemical reaction and makes it go faster
  2. balance one _______ at a time
  3. a chemical that donates a hydrogen atom
  4. no atoms are gained or lost during any reaction
  5. type of chemical reaction that creates oxides
  6. pH of pure water
Down
  1. a chemical that accepts a hydrogen atom
  2. a reaction where energy is released
  3. minimum energy required to overcome the initial breaking of bonds in reactants
  4. a reaction where energy is absorbed

10 Clues: pH of pure water • balance one _______ at a time • a reaction where energy is released • a reaction where energy is absorbed • a chemical that accepts a hydrogen atom • a chemical that donates a hydrogen atom • type of chemical reaction that creates oxides • no atoms are gained or lost during any reaction • ...

Chemisty Unit Review Crossword 2017-02-12

Chemisty Unit Review Crossword crossword puzzle
Across
  1. substance consisting of atoms which all have the same atomic number
  2. how much the element weighs
  3. Gas has all valence electrons, doesn’t mix
  4. substance that is formed as a result of a chemical reaction
  5. carries no charge
  6. center of atom, protons and neutrons
  7. basic unit of everything in the universe, what everything is made of
  8. outermost electron(s)
  9. when atoms of differents elements combine
  10. horizontal row in the periodic table
  11. invented the Periodic Table
  12. chemical reaction that makes it cold
  13. shiny, solid, good conductor, malleable, ductile
  14. can combine with atoms of the same element
Down
  1. a substance that takes part in and undergoes change
  2. helps you locate the element on the periodic table
  3. chemical reaction that makes it hot
  4. column of elements in the periodic table
  5. number of atoms present before and after a reaction takes place is always the same
  6. brittle, poor conductor, not malleable or ductile
  7. carries no charge
  8. In between metal and non-metal
  9. space around nucleus of atom where the electrons are likely to be found
  10. carries negative charge
  11. the 2 letters that tell what the element is

25 Clues: carries no charge • carries no charge • outermost electron(s) • carries negative charge • how much the element weighs • invented the Periodic Table • In between metal and non-metal • chemical reaction that makes it hot • center of atom, protons and neutrons • horizontal row in the periodic table • chemical reaction that makes it cold • column of elements in the periodic table • ...

Bobnando 2013-06-13

Bobnando crossword puzzle
Across
  1. A pure substance made up of only one type of atom
  2. A large molec ule made up of small repeating subunits chemically bonded together
  3. A plastic made from starch deirved from plants such as corn and potato
  4. Does not break down
  5. The ability of a substanes to bend or hammered into different shapes
  6. A compound produced when iron reacts with oxygen and water in the atmoshere
Down
  1. The breakdown of a metallic substance due to a chemical reaction with substances in the enviroment
  2. The ability of a substance to catch fire
  3. How shiny a material is
  4. A substance used up in a chemical reaction
  5. A pure substence made up of two or more different atoms
  6. A new substance prooduced in a chemical reaction
  7. A row across the periodic table
  8. A column down the periodic table
  9. Capable of decomposing by the action of micro-organisms
  10. A molecule constsing of two atoms
  11. Both a philosophy and ancient science
  12. The ability of a substanes drawn to wire
  13. A gree patina caused by the reaction of copper with air or sea water over a long period of time
  14. How posionous a substance is

20 Clues: Does not break down • How shiny a material is • How posionous a substance is • A row across the periodic table • A column down the periodic table • A molecule constsing of two atoms • Both a philosophy and ancient science • The ability of a substance to catch fire • The ability of a substanes drawn to wire • A substance used up in a chemical reaction • ...

Properties of Matter Review 2023-05-19

Properties of Matter Review crossword puzzle
Across
  1. The process of a liquid becoming a gas.
  2. A reaction that releases heat as a product.
  3. A bond between atoms that share electrons.
  4. The ability for a metal to be drawn into a thin wire.
  5. The process of a solid becoming a gas.
  6. A reaction that uses heat as a reactant.
  7. The process of a solid becoming a liquid.
  8. The ability of a substance to dissolve in a liquid.
  9. The beginning parts of a reaction.
  10. Anything that has mass and takes up space.
  11. An atom that has taken on a positive or negative charge.
Down
  1. The ability for a metal to be flattened and reshaped.
  2. The positively charged part of an atom.
  3. The end result of a chemical reaction.
  4. The process of a gas becoming a liquid.
  5. The neutral charged part of an atom.
  6. A substance that speeds up a chemical reaction.
  7. A bond between atoms that give and take electrons.
  8. The negatively charged part of an atom.

19 Clues: The beginning parts of a reaction. • The neutral charged part of an atom. • The end result of a chemical reaction. • The process of a solid becoming a gas. • The process of a liquid becoming a gas. • The positively charged part of an atom. • The process of a gas becoming a liquid. • The negatively charged part of an atom. • A reaction that uses heat as a reactant. • ...

Mole and Chemical Reactions Crossword 2025-01-21

Mole and Chemical Reactions Crossword crossword puzzle
Across
  1. The simplest whole-number ratio of elements in a compound.
  2. A substance that is formed as a result of a chemical reaction.
  3. The reactant that is used up first in a chemical reaction, limiting the amount of product that can form.
  4. A scientific law stating that matter cannot be created or destroyed in a chemical reaction, so the total mass of reactants equals the total mass of products.
  5. A small number written below and to the right of an element in a chemical formula, showing how many atoms of that element are in one molecule of the compound.
  6. The mass of one mole of a substance, usually measured in grams per mole (g/mol). It is calculated by adding up the atomic masses of all the atoms in a molecule.
  7. A process where substances, called reactants, change to form new substances, called products.
Down
  1. A chemical equation in which the number of atoms for each element is the same on both sides of the equation, following the law of conservation of mass.
  2. The percentage by mass of each element in a compound.
  3. A substance that starts a chemical reaction and is used up during the reaction.
  4. The reactant that is left over after the limiting reactant is completely used up in a chemical reaction.
  5. The number of particles in one mole, which is 6.022 × 10²³.
  6. The actual number of atoms of each element in a molecule of a compound.
  7. A unit used to measure the amount of a substance. One mole contains 6.022 × 10²³ particles (atoms, molecules, or ions) of that substance.

14 Clues: The percentage by mass of each element in a compound. • The simplest whole-number ratio of elements in a compound. • The number of particles in one mole, which is 6.022 × 10²³. • A substance that is formed as a result of a chemical reaction. • The actual number of atoms of each element in a molecule of a compound. • ...

Photosynthesis 2020-10-27

Photosynthesis crossword puzzle
Across
  1. Membrane bound structure within chloroplasts that contains chlorophyll and other light absorbing pigments used in the light dependent reactions of photosynthesis
  2. Organelle made up of numerous membranes that are used to convert solar energy into chemical energy
  3. Stacks of thylakoids
  4. dependent reaction Part of photosynthesis that takes in water and energy from sunlight and transfers energy to the next reaction
  5. Process by which light energy is converted into chemical energy
Down
  1. Substances formed by a chemical reaction: what comes out
  2. Fluid around the grana in the chloroplast
  3. adenosine triphosphate; energy
  4. Light absorbing pigment molecule in photosynthetic organisms
  5. Cycle Light independent reaction
  6. Substances that are changed by a chemical reaction
  7. independent reaction Part of photosynthesis that uses energy absorbed during the first reaction to make glucose

12 Clues: Stacks of thylakoids • adenosine triphosphate; energy • Cycle Light independent reaction • Fluid around the grana in the chloroplast • Substances that are changed by a chemical reaction • Substances formed by a chemical reaction: what comes out • Light absorbing pigment molecule in photosynthetic organisms • ...

Chemical Equation thing 2022-10-05

Chemical Equation thing crossword puzzle
Across
  1. before chemical reaction
  2. stuff that takes up space
  3. shows something was added to equation
  4. matter cannot be created or _____
  5. these need to be balanced on both sides of an equation
Down
  1. law of ______ of mass
  2. event that changes matter
  3. nothing was created or destroyed
  4. after a chemical reaction
  5. shows chemical reaction is happening

10 Clues: law of ______ of mass • before chemical reaction • event that changes matter • after a chemical reaction • stuff that takes up space • nothing was created or destroyed • matter cannot be created or _____ • shows chemical reaction is happening • shows something was added to equation • these need to be balanced on both sides of an equation

Chemistry Crossword By: Jessica Donegan 2018-11-11

Chemistry Crossword By: Jessica Donegan crossword puzzle
Across
  1. The study of properties of matter and the change it undergoes
  2. The most reactive non-metals
  3. A positively charged particle
  4. A compound formed when a metal and a non-metal combine
  5. The ability to be pounded or rolled into sheets
  6. A negatively charged particle
  7. A compound formed when non-metal combine to produce a pure substance
  8. An experiment in which one or more products of a chemical reaction can escape
  9. When a substances react to form a new substance
  10. a pure substance made up of two or more elements chemically combined together
  11. A slow chemical change that occurs when oxygen in the air reacts with a metal
  12. Often liquids or gases at room temperature, not shiny, are insulators, not malleable or ductile
Down
  1. The ability to be stretched into long wires
  2. Can be in-between metals and non-metals
  3. An experiment in which all reactants and all products of a chemical reaction are accounted for
  4. When a substance changes state but not its composition
  5. The most stable and unreactive
  6. The shininess of a substance
  7. The amount of matter that occupies a certain space
  8. A positively charged ion
  9. Substances that react in a chemical reaction to form a new substance
  10. The ability to carry an electrical current
  11. A new substance produced in a chemical reaction
  12. The average mass of an element(amu)
  13. This element has one proton, one electron and no neutrons
  14. A negatively charged ion
  15. Solid at room temperature, malleable, have lustre, are conductors, are ductile

27 Clues: A positively charged ion • A negatively charged ion • The most reactive non-metals • The shininess of a substance • A positively charged particle • A negatively charged particle • The most stable and unreactive • The average mass of an element(amu) • Can be in-between metals and non-metals • The ability to carry an electrical current • ...

Unit 4 Review 2022-03-21

Unit 4 Review crossword puzzle
Across
  1. The chemical property of being able to burn
  2. The ability of an object to transfer heat or electricity to another object.
  3. A substance produced in a chemical reaction
  4. capable of being shaped; physical property
  5. Composition of matter which depends on temperature.
  6. smell; chemical property
  7. the attraction caused by a magnetic force
  8. the temperature at which a substance changes from a liquid to a gas; physical property
Down
  1. the principle stating that matter is not created or destroyed during a chemical reaction
  2. Mass per unit volume; physical property
  3. A change that occurs when one or more substances change into entirely new substances with different properties.
  4. A change in a substance that does not involve a change in the identity of the substance
  5. A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
  6. The corrosion of iron or steel (water and oxygen must be present for rusting to occur).
  7. A measure of how much solute can dissolve in a given solvent at a given temperature.
  8. the temperature at which a substance changes from a solid to a liquid; physical property
  9. A starting material in a chemical reaction

17 Clues: smell; chemical property • Mass per unit volume; physical property • the attraction caused by a magnetic force • capable of being shaped; physical property • A starting material in a chemical reaction • The chemical property of being able to burn • A substance produced in a chemical reaction • Composition of matter which depends on temperature. • ...

Chemical Equations-Manas Bhatia 2024-05-01

Chemical Equations-Manas Bhatia crossword puzzle
Across
  1. hydrated ferric oxide
  2. substances that undergo reaction to form new substances called products
  3. new substances formed due to chemical reactions between reactants
  4. a process in which a substance reacts with gases to form a surface compound
  5. a reaction in which insoluble salts are produced
  6. type of chemical reaction in which an acid reacts with a base to form a salt and water.
  7. a reaction in which energy is absorbed
  8. a reaction in which a single compound decomposes to form 2 or more substances
  9. a chemical reaction in which two soluble compounds in solution react to form an insoluble product, known as a precipitate.
  10. a solution which has water as its solvent
Down
  1. spoilage of food rich in fats due to oxidation
  2. a reaction in which hydrogen is gained or oxygen is lost
  3. a reaction in which 2 or more substances combine to form a single product
  4. a reaction in which oxygen is gained or hydrogen is lost
  5. number of atoms in the Lhs is equal to the number of atoms in the Rhs
  6. a reaction in which heat is released

16 Clues: hydrated ferric oxide • a reaction in which heat is released • a reaction in which energy is absorbed • a solution which has water as its solvent • spoilage of food rich in fats due to oxidation • a reaction in which insoluble salts are produced • a reaction in which hydrogen is gained or oxygen is lost • a reaction in which oxygen is gained or hydrogen is lost • ...

Chemistry Crossword 2014-05-18

Chemistry Crossword crossword puzzle
Across
  1. reaction produced by a reactant plus a reactant equals a product
  2. reactant equals product plus product
  3. the result of the combination of substances
  4. amount of product actually formed
  5. the number of orbits made by electrons around an atom.
  6. the number of protons in an element
  7. reactant plus reactant equals product plus product
  8. max amount of product formed in a reaction
  9. the component dissolved in a solvent.
Down
  1. shows relationships between reactants and products
  2. caused by gases that exert force on their surroundings
  3. the solution that dissolves the solute.
  4. reactant plus reactant equals product plus product
  5. perfectly dissolved. No more nor less of a solute.
  6. movement of gas through a small opening
  7. a chemical made by two or more elements
  8. ability of a solute to dissolve in a solvent.
  9. reaction of a fuel oxygen gas to produce water vapor and either C or CO
  10. mixing of gases caused by random motion
  11. substace that ends in a chemical reaction

20 Clues: amount of product actually formed • reactant equals product plus product • the number of protons in an element • the component dissolved in a solvent. • the solution that dissolves the solute. • movement of gas through a small opening • a chemical made by two or more elements • mixing of gases caused by random motion • substace that ends in a chemical reaction • ...

chemistry choice board crossword puzzle 2024-04-18

chemistry choice board crossword puzzle crossword puzzle
Across
  1. equation A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  2. A term used to describe a material that can be pulled out into a long wire.
  3. The ability to dissolve in another substance
  4. A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
  5. The "" sign in a chemical reaction; means to make or produce.
Down
  1. A change in which one or more substances are converted into new substances.
  2. 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.
  3. A substance produced in a chemical reaction
  4. flexible; can be shaped;Can be pounded into a shape
  5. A substance or molecule that participates in a chemical reaction

10 Clues: A substance produced in a chemical reaction • The ability to dissolve in another substance • flexible; can be shaped;Can be pounded into a shape • The "" sign in a chemical reaction; means to make or produce. • A substance or molecule that participates in a chemical reaction • A change in which one or more substances are converted into new substances. • ...

S1 Chemistry 2023-02-23

S1 Chemistry crossword puzzle
Across
  1. Decreasing the concentration ___________ the rate of reaction
  2. equipment used to measure liquids
  3. the scientific word for burning
Down
  1. which chemical changed colour to a white powder after being burnt
  2. Decreasing the particle size _________ the rate of reaction
  3. The solid formed if a chemical reaction happens
  4. The side of the fire triangle that comes from the air
  5. speeds up a chemical reaction as the particles have more speed
  6. the safety measure to protect your eyes from chemicals
  7. substance that speeds up a chemical reaction

10 Clues: the scientific word for burning • equipment used to measure liquids • substance that speeds up a chemical reaction • The solid formed if a chemical reaction happens • The side of the fire triangle that comes from the air • the safety measure to protect your eyes from chemicals • Decreasing the particle size _________ the rate of reaction • ...

Balancing Chemical Equations Crossword 2023-10-10

Balancing Chemical Equations Crossword crossword puzzle
Across
  1. What represents the reaction in a chemical equation
  2. Anything that has mass & takes up space
  3. When both sides of a chemical equation do NOT equal each other
  4. What is formed in a chemical equation after the reaction
  5. When both sides of a chemical equation equal each other
  6. A way to display the balancing of atoms before and after a chemical reaction
Down
  1. The side the products go on in a chemical equation
  2. What matter cannot be, according to the Law of Conservation of Mass
  3. What is present in a chemical equation before the reaction
  4. What side reactants go on in a chemical equation

10 Clues: Anything that has mass & takes up space • What side reactants go on in a chemical equation • The side the products go on in a chemical equation • What represents the reaction in a chemical equation • When both sides of a chemical equation equal each other • What is formed in a chemical equation after the reaction • ...

Enzyme and ATP Vocab 2023-01-30

Enzyme and ATP Vocab crossword puzzle
Across
  1. build larger molecules
  2. releases energy
  3. aka substrate
  4. absorbs energy
  5. break down large molecules
  6. energy carrying molecule
  7. proteins that lower reactions activation energy
Down
  1. amount of energy needed to make a reaction start
  2. active site gets deformed, enzyme doesn't work
  3. reaction making and breaking bonds
  4. formed from a chemical reaction
  5. reactions that provide energy for life's processes
  6. enzymes that speed up reactions without changing
  7. where the substrate and enzyme connect

14 Clues: aka substrate • absorbs energy • releases energy • build larger molecules • energy carrying molecule • break down large molecules • formed from a chemical reaction • reaction making and breaking bonds • where the substrate and enzyme connect • active site gets deformed, enzyme doesn't work • proteins that lower reactions activation energy • ...

Chemical reaction of food 2023-01-11

Chemical reaction of food crossword puzzle
Across
  1. energy storage in plants
  2. sugars found in milk
  3. occurs when starch form a suspension in cold water and they swell and thicken (ex:gravy)
  4. toasting bread is an example of ________
  5. chemical reaction where monosaccharides and disaccharides turn brown when heat is applied
  6. type of fatty acid with no double bond and solid at room temperature
Down
  1. many sugar molecules linked together
  2. sugars found in fruits
  3. fudge and toffee are examples of this chemical reaction of supersaturated sugars
  4. dispersal of fat throughout a liquid (ex:salad dressing)
  5. type of fats that includes olive oil
  6. single sugar molecule
  7. building block of protein
  8. whipping air into a fatty liquid

14 Clues: sugars found in milk • single sugar molecule • sugars found in fruits • energy storage in plants • building block of protein • whipping air into a fatty liquid • many sugar molecules linked together • type of fats that includes olive oil • toasting bread is an example of ________ • dispersal of fat throughout a liquid (ex:salad dressing) • ...

Chemical bonding 2022-10-23

Chemical bonding crossword puzzle
Across
  1. Used in computer ships manufacture beside germanium
  2. Force that result due to sharing pair of electrons
  3. when atom loses or gains electrons
  4. kept under oil surface because its very reactive
  5. Elements arranged in vertical column in periodic table
Down
  1. Force that result when reacting atoms lose and gain electrons during chemical reaction
  2. Number of outermost energy level electrons lost or gained during chemical reaction
  3. tend to lose electrons during chemical reaction
  4. tend to gain electrons during chemical reaction
  5. said to be neutral
  6. Horizontal raw in periodic table

11 Clues: said to be neutral • Horizontal raw in periodic table • when atom loses or gains electrons • tend to lose electrons during chemical reaction • tend to gain electrons during chemical reaction • kept under oil surface because its very reactive • Force that result due to sharing pair of electrons • Used in computer ships manufacture beside germanium • ...

Tanya Nieto Chapter 13 2016-10-12

Tanya Nieto Chapter 13 crossword puzzle
Across
  1. a substance that accepts hydrogen ions
  2. ion a polyatomic ion made by removing a proton from a water molecule
  3. a substance that donates hydrogen ions
  4. a substance that is given the result of the chemical change
  5. the energy stored in molecules that can be released during a reaction
  6. energy transfers from reactants to surroundings
  7. when reaction and it's reverse act the same rate
Down
  1. must be added to break bonds
  2. ion a polyatomic ion made by removing a proton from a water molecule
  3. energy is transferred from surroundings
  4. a reaction between acid and a base
  5. a rapid exothermic oxidation reduction reaction between a material and molecular oxygen
  6. a substance that undergoes a chemical change
  7. chemical reactions change the ______

14 Clues: must be added to break bonds • a reaction between acid and a base • chemical reactions change the ______ • a substance that accepts hydrogen ions • a substance that donates hydrogen ions • energy is transferred from surroundings • a substance that undergoes a chemical change • energy transfers from reactants to surroundings • ...

unit 3 vocabulary 2024-12-06

unit 3 vocabulary crossword puzzle
Across
  1. produces hydronium ion when dissolved in water
  2. produces hydroxide ion when dissolved in water
  3. inverse measurement of hydronium ions in a solution
  4. energy energy needed to start a reaction
  5. a mixture composed of two or more substances
  6. how concentrated a solution is (mol/L)
  7. ion positively charged hydrogen ion
  8. the liquid that dissolves other substances
Down
  1. when the products form equal the reactants formed
  2. theory state that when particles collide they must have a certain amount of energy to produce a reaction
  3. the starting substances in a chemical reaction
  4. compound that changes color at different pH values
  5. a substance that increases the rate of a reaction without becoming part of the reaction
  6. the substance(s) formed from a chemical reaction
  7. the substance that is dissolved

15 Clues: the substance that is dissolved • ion positively charged hydrogen ion • how concentrated a solution is (mol/L) • energy energy needed to start a reaction • the liquid that dissolves other substances • a mixture composed of two or more substances • produces hydronium ion when dissolved in water • the starting substances in a chemical reaction • ...

How Matter Changes 2023-12-18

How Matter Changes crossword puzzle
Across
  1. The total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction.
  2. A type of chemical reaction in which two or more substances combine and form one compound.
  3. A description of a reaction using element symbols and chemical formulas.
  4. The substances that are produced by a chemical reaction.
Down
  1. A process in which atoms of one or more substances rearrange to form one or more new substances.
  2. Number placed in front of an element symbol or chemical formula in an equation.
  3. Small number after a chemical symbol that shows the number of atoms of each element in a compound.
  4. Type of chemical reaction where a substance combines with oxygen and releases energy.
  5. The starting substances in a chemical reaction.

9 Clues: The starting substances in a chemical reaction. • The substances that are produced by a chemical reaction. • A description of a reaction using element symbols and chemical formulas. • Number placed in front of an element symbol or chemical formula in an equation. • Type of chemical reaction where a substance combines with oxygen and releases energy. • ...

Chemical reactions 2022-12-09

Chemical reactions crossword puzzle
Across
  1. A positively charged subatomic particle
  2. A reaction where gas reacts with oxygen to make water and carbon dioxide
  3. The most basic unit of matter
  4. A negatively charged subatomic particle
  5. A reaction with only 1 reactant
  6. A reaction where substances combine into 1 product
Down
  1. A neutral subatomic particle
  2. A substance that speeds up a chemical reaction without itself being consumed
  3. The substances on the left side of a chemical equation
  4. Two or more substances NOT chemically bonded together
  5. A species of atoms
  6. The substances on the right side of a chemical equation
  7. Two or more different atoms chemically bonded together

13 Clues: A species of atoms • A neutral subatomic particle • The most basic unit of matter • A reaction with only 1 reactant • A positively charged subatomic particle • A negatively charged subatomic particle • A reaction where substances combine into 1 product • Two or more substances NOT chemically bonded together • The substances on the left side of a chemical equation • ...

Life's Processes- Vocabulary Work 2025-03-03

Life's Processes- Vocabulary Work crossword puzzle
Across
  1. substance(s) produced by a chemical reaction
  2. a type of sugar-what carbs brak into
  3. matter cannot be created or destroyed- only changed
  4. process where substances undergo a chemical change
  5. chemical reaction that occurs in plant cells
Down
  1. chemical reaction that occurs in animal cells
  2. substance(s) at the begginning of a chemical reaction
  3. a material that is structurally the same before and after a change
  4. the ability to do something

9 Clues: the ability to do something • a type of sugar-what carbs brak into • substance(s) produced by a chemical reaction • chemical reaction that occurs in plant cells • chemical reaction that occurs in animal cells • process where substances undergo a chemical change • matter cannot be created or destroyed- only changed • substance(s) at the begginning of a chemical reaction • ...

Science Ch3 Introduction to Matter 2021-11-08

Science Ch3 Introduction to Matter crossword puzzle
Across
  1. anything that has mass and takes up space
  2. reaction where heat energy is absorbed
  3. nothing is made or destroyed
  4. 2 or more atoms held together by chemical bonds
  5. the study of how matter changes
  6. two or more substances sharing the same space
  7. must change into different substance to be observed
  8. can be observed with changing the substance
  9. a single kind of matter that is pure
Down
  1. cannot be broken down into any other substances
  2. substance made of 2 or more elements in a set ratio
  3. reaction where heat energy is given off
  4. chemical symbols and ratio of a compound
  5. basic particle from which elements are made
  6. force of attraction between atoms
  7. flammability
  8. mass divided by volume

17 Clues: flammability • mass divided by volume • nothing is made or destroyed • the study of how matter changes • force of attraction between atoms • a single kind of matter that is pure • reaction where heat energy is absorbed • reaction where heat energy is given off • chemical symbols and ratio of a compound • anything that has mass and takes up space • ...

Connor's Chemistry Crossword Puzzle 2025-01-23

Connor's Chemistry Crossword Puzzle crossword puzzle
Across
  1. A type of chemical reaction where two elements switch
  2. The center of an atom where Protons and Neutrons are found
  3. A particle found floating around the nucleus that is negatively charged
  4. A particle found in the nucleus of the atom that has no charge
  5. The area in an atom where Electrons move around
  6. An atom that has either gained or lost an electron
  7. A change that causes a new substance to be formed
  8. Two or more elements chemically bonded together
  9. A particle found in the nucleus of the atom that is positively charged
Down
  1. A group of two or more atoms that bond together
  2. A type of chemical reaction where a single element replaces another in a compound
  3. A type of chemical reaction where molecules combine
  4. A type of chemical reaction where compounds break apart
  5. Atomic bond that occurs when two atoms share electrons

14 Clues: A group of two or more atoms that bond together • The area in an atom where Electrons move around • Two or more elements chemically bonded together • A change that causes a new substance to be formed • An atom that has either gained or lost an electron • A type of chemical reaction where molecules combine • A type of chemical reaction where two elements switch • ...

Chemistry C3 2nd half 2017-02-08

Chemistry C3 2nd half crossword puzzle
Across
  1. A chemical reaction that absorbs heat from the surroundings
  2. An exothermic reaction turns chemical energy into this type of energy
  3. Fuels are a store of this type of energy.
  4. A process in a reaction that is endothermic (to do with bonds)
Down
  1. The amount of energy needed to heat 1g of a chemical by 1 degree Celcius
  2. A chemical reaction that gives out heat.
  3. A process in a reaction that is exothermic (to do with bonds)
  4. A process where large amounts of a single product is made
  5. The unit of energy
  6. A process where small amounts of chemicals e.g. medicines are made

10 Clues: The unit of energy • A chemical reaction that gives out heat. • Fuels are a store of this type of energy. • A process where large amounts of a single product is made • A chemical reaction that absorbs heat from the surroundings • A process in a reaction that is exothermic (to do with bonds) • A process in a reaction that is endothermic (to do with bonds) • ...

Chemistry PC 252 vocab 2021-01-26

Chemistry PC 252 vocab crossword puzzle
Across
  1. - The amount of space an object occupies.
  2. - Measure of the amount of matter in an object.
  3. Point - Temperature at which a liquid substance becomes a gas.
  4. - The characteristic smell of a substance.
  5. The ability to be hammered or pressed down
  6. The ability to produce electricity
  7. Point - Temperature at which a solid substance becomes a liquid.
  8. - A chemical substance that produces hydrogen ions in solution and tastes sour.
  9. - A chemical substance that produces hydroxide ions in solution and tastes bitter.
  10. - Chemical reaction in which thermal energy is released.
  11. - Measure of acidity or basicity of a substance.
  12. The characteristic of being able to attract because of an electrical force
  13. Property - A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability).
  14. Change - Process where one or more substances are altered into new and different substances.
  15. Property - A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point).
  16. - Property of a substance relating to how easily it reacts with other substances.
Down
  1. - Chemical reaction in which thermal energy is absorbed.
  2. - The readiness of a substance to produce hydrogen ions.
  3. The ability to be drawn out into thin wires
  4. - Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  5. - Property of a substance defining how easily it ignites and burns.
  6. The ability to rust do to oxygen
  7. - The amount of matter in a defined volume. (density = mass/volume)
  8. Reaction - Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  9. - A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  10. Change - A type of change in which the form of matter is altered but one substance is not transformed into another.
  11. - The external features of a substance.
  12. - The readiness of a substance to produce hydroxide ions.
  13. The characteristic of a slow moving sticky substance

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

Energy 2016-05-09

Energy crossword puzzle
Across
  1. bonds the forces holding atoms together in a molecule
  2. the average kinetic energy of the particles in an object
  3. transfer of energy by waves
  4. a substance that changes the rate of a chemical reaction without any permanent change to its own structure
  5. a chemical reaction that absorbs heat energy
  6. transfer of heat when particles move between objects or areas that differ in temperature
  7. the ability to cause change
  8. a particle formed when two or more atoms bond together
  9. chemical reactions that release heat
  10. the energy an object has due to its motion
Down
  1. a scientific law stating that energy cannot be created or destroyed
  2. the transfer of energy from one object to another due to a difference in temperature
  3. energy that is stored because of an object's position
  4. the distance traveled per second by an object
  5. the transfer of energy by collisions between the atoms and molecules in a material

15 Clues: transfer of energy by waves • the ability to cause change • chemical reactions that release heat • the energy an object has due to its motion • a chemical reaction that absorbs heat energy • the distance traveled per second by an object • bonds the forces holding atoms together in a molecule • energy that is stored because of an object's position • ...

Equilibria 2016-06-22

Equilibria crossword puzzle
Across
  1. effect on the equilibrium constant when temperature is increased in an exothermic reaction
  2. amount of product produced in a chemical reaction
  3. direction followed when temperature is increased in a chemical equilibrium
  4. substance added to a chemical reaction which speeds it up but has no effect on Kc
  5. for a particular Kc this quantity must remain constant
  6. meaning of [ ]
Down
  1. name given to Kc
  2. principle which states that the equilibrium position moves to counteract the change imposed
  3. number of moles of gas in the reactants and products determine the effect of this quantity on a chemical equilibrium
  4. decrease pressure in an equilibrium reaction with one of react gas and one mole of product gas
  5. direction followed when pressure is increased in an equilibrium reaction with 4 moles of gas on the left and 2 on the right
  6. equilibrium reaction used to produce NH3

12 Clues: meaning of [ ] • name given to Kc • equilibrium reaction used to produce NH3 • amount of product produced in a chemical reaction • for a particular Kc this quantity must remain constant • direction followed when temperature is increased in a chemical equilibrium • substance added to a chemical reaction which speeds it up but has no effect on Kc • ...

MT6 Vocab Review 2024-11-14

MT6 Vocab Review crossword puzzle
Across
  1. Reaction in which atoms of one element replace the atoms of the second, less reactive element in a compound.
  2. Numbers placed in front of chemical symbols or formulas in a chemical reaction.
  3. The elements or compounds on the left side of a chemical reaction.
  4. Ions that do not participate in an aqueous chemical reaction.
Down
  1. The reaction in which a single compound is broken down into two or more products.
  2. equation A chemical equation the is consistent with the law of conservation of mass.
  3. The equation indicating only those particles that actually take part in a chemical reaction in an aqueous solution.
  4. A substance that speeds up the rate of a chemical reaction.
  5. The complete reaction of a hydrocarbon with oxygen to produce carbon dioxide and water.

9 Clues: A substance that speeds up the rate of a chemical reaction. • Ions that do not participate in an aqueous chemical reaction. • The elements or compounds on the left side of a chemical reaction. • Numbers placed in front of chemical symbols or formulas in a chemical reaction. • The reaction in which a single compound is broken down into two or more products. • ...

Chemistry Crossword 2017-03-23

Chemistry Crossword crossword puzzle
Across
  1. a strong acid really replaces a hydrogen ion in a chemical reaction; can also be used to describe the bond between 2 different atoms
  2. the numbers of active molecules in a set of volume of solution
  3. a theory stating that the particles involved in a chemical reaction must collide in order to react
  4. a substance that increases the rate of a reaction is not used up in the reaction
  5. a small number of active molecules in a set volume of a solution
  6. a reaction which is in which an acid and a base combine to produce a metal salt and water
  7. a reaction that involves the combination of oxygen with a fuel or metal
  8. reaction a reaction used to producer solid products from Solution of ionic compounds
  9. a long-chain of molecule formed by joining of many smaller repeating molecules(monomers)
Down
  1. a small molecule from which polymers are made
  2. a molecule that contains only carbon and hydrogen atoms
  3. a mixture pf a solute dissolved in a solvent such as water
  4. process of joining a smaller units to form a long-chain molecule
  5. a reaction that involves oxygen and releases light and heat energy
  6. a reaction that involves the breakdown of a compound into simpler substances
  7. acid this refers to and acid soliton with a high concentration of hydrogen ions
  8. rate how fast or slow a reaction could be
  9. an object or a substance that can be broken down by bacteria, and other living organisms

18 Clues: rate how fast or slow a reaction could be • a small molecule from which polymers are made • a molecule that contains only carbon and hydrogen atoms • a mixture pf a solute dissolved in a solvent such as water • the numbers of active molecules in a set of volume of solution • process of joining a smaller units to form a long-chain molecule • ...

respiration 2014-11-02

respiration crossword puzzle
Across
  1. Immediate source of energy for all cells
  2. Chemical required for both forms of respiration
  3. Chemical reaction which doesn’t need oxygen to occur
  4. Chemical reaction which breaks down glucose into ATP
  5. Chemical reaction which needs oxygen to occur
  6. Gas required for aerobic respiration
Down
  1. Dioxide Chemical produced during anaerobic respiration in plant and yeast cells
  2. First stage of respiration, breaks down glucose to pyruvic acid, occurs in cytoplasm
  3. Another name for anaerobic respiration in plant and yeast cells
  4. Chemical produced during anaerobic respiration in plant and yeast cells
  5. Acid Chemical produced during anaerobic respiration in animal cells

11 Clues: Gas required for aerobic respiration • Immediate source of energy for all cells • Chemical reaction which needs oxygen to occur • Chemical required for both forms of respiration • Chemical reaction which doesn’t need oxygen to occur • Chemical reaction which breaks down glucose into ATP • Another name for anaerobic respiration in plant and yeast cells • ...

CHEMICAL REACTIONS 2013-11-20

CHEMICAL REACTIONS crossword puzzle
Across
  1. a gas that is present within a humans stomach to digest there foods
  2. when energy is absorbed from its surrounding
  3. corrosive substances that break down substances
  4. a substance that is produced in all neutralisation reaction
  5. states that matter can be neither destroyed nor created during a chemical reaction
  6. the result that is formed towards the end of a reaction
  7. a substance that reacts with oxygen releasing heat
  8. a substance participating in a chemical reaction
  9. when an acid and base react with each other
  10. Solid, Liquid or Gas
  11. react with solid substances which then break them down
Down
  1. A process that involves rearrangement of the molecular or ionic structure of a substance
  2. states that a compound, no matter how it is formed, always contains the same relative amounts of each element
  3. the smallest particle of a chemical element that can exist
  4. are substances that are used to tell whether a substance is a Acid or Base
  5. a substance that is incapable to dissolve
  6. describes how acidic or basic a substance is
  7. have a bitter taste and feel slippery or soapy to touch
  8. release energy
  9. a substance that is able to dissolve

20 Clues: release energy • Solid, Liquid or Gas • a substance that is able to dissolve • a substance that is incapable to dissolve • when an acid and base react with each other • when energy is absorbed from its surrounding • describes how acidic or basic a substance is • corrosive substances that break down substances • a substance participating in a chemical reaction • ...

chemical equation 2024-05-05

chemical equation crossword puzzle
Across
  1. -The process in which a substance combines with oxygen, releasing energy
  2. - The substance that results from a chemical reaction are called(8 letters)
  3. - Student name
  4. The number of atoms of each element in a molecule
  5. (14 letters)
  6. - A substance that dissociates into ions when dissolved in water, conducting electricity
  7. The reactant that undergoes oxidation in a redox
Down
  1. The number written in front of a chemical formula to balance a chemical equation (11
  2. - A substance that undergoes reduction in a redox reaction (9 letters)
  3. A substance that speeds up a chemical reaction without being consumed (8 letters
  4. reaction -A type of reaction in which a single compound breaks down into two or more simpler substances
  5. and Water The product formed when a base reacts with an acid (12 letters)

12 Clues: (14 letters) • - Student name • The reactant that undergoes oxidation in a redox • The number of atoms of each element in a molecule • - A substance that undergoes reduction in a redox reaction (9 letters) • -The process in which a substance combines with oxygen, releasing energy • and Water The product formed when a base reacts with an acid (12 letters) • ...

reaction rate crossword 2021-04-29

reaction rate crossword crossword puzzle
Across
  1. for a chemical reaction to occur it must have sufficient energy and correct __________
  2. increasing _______ will raise the average kinetic energy
  3. an equation that relates reaction rate and concentration of reactants
  4. substance that speeds up a chemical reaction without being consumed
  5. a type of catalyst in a different phase as the reactants
  6. ______________ lasts for about 10-13s cause of its high energy
Down
  1. the power to which a reactant concentration is raised to
  2. ________ of a reaction is also known as heat of a reaction
  3. a sequence of elementary steps by which a chemical reaction occurs.
  4. states that for a chemical reaction to occur, the reacting particles must collide with one another.

10 Clues: the power to which a reactant concentration is raised to • increasing _______ will raise the average kinetic energy • a type of catalyst in a different phase as the reactants • ________ of a reaction is also known as heat of a reaction • ______________ lasts for about 10-13s cause of its high energy • ...

Karter Herdman ch 13 2019-03-05

Karter Herdman ch 13 crossword puzzle
Across
  1. The new materials formed in a chemical reaction.
  2. A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.
  3. The reacting substances in a chemical reaction.
  4. Description of a chemical reaction in which there is a net absorption of energy.
  5. The deterioration of a metal, typically caused by atmospheric oxygen
  6. A substance that accepts hydrogen ions.
Down
  1. A reaction between an acid and a base
  2. Description of a substance that can behave as either an acid or a base.
  3. A substance that donates Hydrogen ions
  4. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.

10 Clues: A reaction between an acid and a base • A substance that donates Hydrogen ions • A substance that accepts hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • The deterioration of a metal, typically caused by atmospheric oxygen • Description of a substance that can behave as either an acid or a base. • ...

Food for Thought 2024-02-25

Food for Thought crossword puzzle
Across
  1. lunch
  2. breakfast
  3. metabolism
  4. exercise
  5. reaction
Down
  1. chemical
  2. dinner
  3. sleeping
  4. thinking
  5. energy

10 Clues: lunch • dinner • energy • chemical • sleeping • thinking • exercise • reaction • breakfast • metabolism

Cole crossword 2022-12-11

Cole crossword crossword puzzle
Across
  1. is equal to the rate of the reverse chemical reaction
  2. can be added to a reaction to increase the rxn rate
  3. Energy is released as a product of a chemical rxn
  4. what is being favoured when the K value is larger than 1
  5. kind of equilibrium when the change is a physical one, not a chemical one
  6. which side of the rxn will be favoured when an endothermic rxn is heated?
  7. relationship between k and q that shows that a system is at equilibrium
Down
  1. which side of the rxn will be favoured when an exothermic rxn is heated?
  2. energy required to break chemical bonds in the reactants
  3. what’s being favoured when the K value is less than 1
  4. energy is added for the reaction to take place
  5. if a stress is applied to a system at equilibrium, the system will try to reduce the change by trying to counteract it. *answer= just the 1 word name
  6. equilibrium A state where the rate of the forward chemical

13 Clues: energy is added for the reaction to take place • Energy is released as a product of a chemical rxn • can be added to a reaction to increase the rxn rate • is equal to the rate of the reverse chemical reaction • what’s being favoured when the K value is less than 1 • energy required to break chemical bonds in the reactants • ...

Photosynthesis 2024-11-05

Photosynthesis crossword puzzle
Across
  1. The new/different molecules created from a chemical reaction
  2. gives a plant the green and soaks in radiant energy
  3. the substance/molecules the Xylem soaks in for the plant.
  4. The needed molecules to form a chemical reaction
  5. a molecule formed from the chemical reaction of photosynthesis that is released from the stomata.
  6. distributes a wild plant radiant energy
Down
  1. filled with Chlorophyll and where photosynthesis takes place
  2. soaks in water (or H2O) for the plant.
  3. a molecule formed from the chemical reaction of photosynthesis and is transferred to the plant through the phloem.
  4. Chemical reaction of how a plant creates its food

10 Clues: soaks in water (or H2O) for the plant. • distributes a wild plant radiant energy • The needed molecules to form a chemical reaction • Chemical reaction of how a plant creates its food • gives a plant the green and soaks in radiant energy • the substance/molecules the Xylem soaks in for the plant. • filled with Chlorophyll and where photosynthesis takes place • ...

CHEMICAL REACTIONS 2013-11-20

CHEMICAL REACTIONS crossword puzzle
Across
  1. a substance that is incapable to dissolve
  2. a substance that reacts with oxygen releasing heat
  3. Solid, Liquid or Gas
  4. a substance participating in a chemical reaction
  5. when an acid and base react with each other
  6. states that a compound, no matter how it is formed, always contains the same relative amounts of each element
  7. A process that involves rearrangement of the molecular or ionic structure of a substance
  8. a gas that is present within a humans stomach to digest there foods
Down
  1. have a bitter taste and feel slippery or soapy to touch
  2. release energy
  3. states that matter can be neither destroyed nor created during a chemical reaction
  4. corrosive substances that break down substances
  5. a substance that is produced in all neutralisation reaction
  6. are substances that are used to tell whether a substance is a Acid or Base
  7. the result that is formed towards the end of a reaction
  8. describes how acidic or basic a substance is
  9. a substance that is able to dissolve
  10. react with solid substances which then break them down
  11. the smallest particle of a chemical element that can exist
  12. when energy is absorbed from its surrounding

20 Clues: release energy • Solid, Liquid or Gas • a substance that is able to dissolve • a substance that is incapable to dissolve • when an acid and base react with each other • describes how acidic or basic a substance is • when energy is absorbed from its surrounding • corrosive substances that break down substances • a substance participating in a chemical reaction • ...

Chemistry final project. 2020-06-10

Chemistry final project. crossword puzzle
Across
  1. the emission of energy as electromagnetic waves or as moving subatomic particles,
  2. a substance made from a chemical reaction
  3. the substances that combine in a chemical reaction
  4. the basic unit of matter
  5. Bang the rapid expansion of matter from a state of extremely high density and temperature
  6. operating well without much waste.
  7. explosive warhead carried by a missile.
  8. a chemical reaction between a fuel and oxygen
  9. send into the air
  10. the figure made by two lines coming from a single point.
  11. actions taken to make or do something.
  12. make (someone) do something against their will.
  13. operating well without much waste.
  14. to discover or notice.
  15. the line where the earth and the sky appear to meet.
Down
  1. to change into a different form or state.
  2. anything having mass and taking up space
  3. a perceptible occurrence or fact.
  4. how far something is
  5. they show variation in data on a graph
  6. that which follows; result.
  7. the force by which all objects in the universe are attracted to each other.
  8. Move quickly
  9. a rearrangement of atoms into new substances
  10. to perceive or make out.
  11. useable power such as heat or electricity

26 Clues: Move quickly • send into the air • how far something is • to discover or notice. • the basic unit of matter • to perceive or make out. • that which follows; result. • a perceptible occurrence or fact. • operating well without much waste. • operating well without much waste. • they show variation in data on a graph • actions taken to make or do something. • ...

Chemistry final project. 2020-06-14

Chemistry final project. crossword puzzle
Across
  1. send into the air
  2. anything having mass and taking up space
  3. how far something is
  4. to discover or notice.
  5. a rearrangement of atoms into new substances
  6. a perceptible occurrence or fact.
  7. explosive warhead carried by a missile.
  8. useable power such as heat or electricity
  9. the figure made by two lines coming from a single point.
  10. make (someone) do something against their will.
  11. a substance made from a chemical reaction
  12. Bang the rapid expansion of matter from a state of extremely high density and temperature
  13. the substances that combine in a chemical reaction
  14. the line where the earth and the sky appear to meet.
Down
  1. a chemical reaction between a fuel and oxygen
  2. Move quickly
  3. the emission of energy as electromagnetic waves or as moving subatomic particles,
  4. the basic unit of matter
  5. to perceive or make out.
  6. that which follows; result.
  7. to change into a different form or state.
  8. operating well without much waste.
  9. they show variation in data on a graph
  10. actions taken to make or do something.
  11. the force by which all objects in the universe are attracted to each other.

25 Clues: Move quickly • send into the air • how far something is • to discover or notice. • the basic unit of matter • to perceive or make out. • that which follows; result. • a perceptible occurrence or fact. • operating well without much waste. • they show variation in data on a graph • actions taken to make or do something. • explosive warhead carried by a missile. • ...

Chemistry crossword 2021-07-12

Chemistry crossword crossword puzzle
Across
  1. brown flake substance acquires on the surface of iron after long exposure to moisture is ?
  2. When Carbon Dioxide passes through lime water it turns lime water?
  3. Fatty foods become rancid due to the process of __
  4. __ gas is filled in packet of chips to prevent rancidity
  5. change in state is ___ reaction
  6. ___agent reduces the other reactant and oxidizes itself
  7. we should never change __ of formula
  8. aqueous solution of sodium chloride is known as?
  9. oxidation of fats and oils which makes the smell and taste bad is known as?
  10. plaster of paris changes to ___ on mixing with wate
Down
  1. Equation which doesn't follow the law of conservation of mass
  2. PH stands for ___in German meaning power
  3. ___Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound
  4. On heating calcium carbonate turns into calcium __
  5. Respiration is example of _ reaction?
  6. Gas evolved when zinc reacts with dilute HCL
  7. Oxide of which element is used as major ingredient in cement
  8. white silver chloride changes into ___colour when exposed to sunlight
  9. hydrogen gas burns with __ sound
  10. What does the symbol (aq) represent in a chemical equation

20 Clues: change in state is ___ reaction • hydrogen gas burns with __ sound • we should never change __ of formula • Respiration is example of _ reaction? • PH stands for ___in German meaning power • Gas evolved when zinc reacts with dilute HCL • aqueous solution of sodium chloride is known as? • Fatty foods become rancid due to the process of __ • ...

biology 2024-10-28

biology crossword puzzle
Across
  1. the ability to do work or to create some kind of change
  2. An inorganic ion that helps enzymes function.
  3. A catalyst that speeds up chemical reactions.
  4. Stored energy based on position or state.
  5. The matter relevant to a particular energy transfer.
  6. Enzymes change shape to fit substrates better.
  7. Energy that is not usable for work.
  8. The chemical reactions that take place in cells
  9. Energy available to do work after losses.
  10. The molecule an enzyme acts upon.
  11. Regulation by the product of a reaction to maintain balance.
  12. (Adenosine Triphosphate) The main energy currency in cells.
  13. -A reaction that absorbs energy.
  14. Potential energy stored in chemical bonds.
  15. -A measure of disorder in a system.
  16. All chemical reactions in a living organism that convert energy.
  17. Energy cannot be created or destroyed.
Down
  1. A reaction that releases energy.
  2. Measure of disorder; high entropy means less available energy.
  3. the study of energy and energy transfer involving physical matter
  4. Inhibitor competes with substrate for enzyme’s active site.
  5. Energy of an object in motion.
  6. Energy cannot be created or destroyed, only transformed.
  7. The energy required to start a reaction.
  8. a term used to describe the concept of energy flow through living systems

25 Clues: Energy of an object in motion. • A reaction that releases energy. • -A reaction that absorbs energy. • The molecule an enzyme acts upon. • Energy that is not usable for work. • -A measure of disorder in a system. • Energy cannot be created or destroyed. • The energy required to start a reaction. • Stored energy based on position or state. • ...

Biochemistry Vocab 2025-10-09

Biochemistry Vocab crossword puzzle
Across
  1. Weak attraction between molecules of the same substance
  2. Substance formed as a result of a chemical reaction
  3. Large molecule made up of smaller subunits
  4. Basic unit of matter
  5. Substance that speeds up a chemical reaction
  6. Attraction between molecules of different substances
  7. A pure substance that consists entirely of one type of atom.
  8. Macromolecule that stores genetic information
  9. Energy needed to start a reaction
  10. A substance that an enzyme acts upon
  11. Substance in which a solute is dissolved to form a solution.
Down
  1. A substance made of two or more elements in definite proportions.
  2. Attraction between two water molecules
  3. Type of bond where one or more electrons are transferred from one atom to another
  4. Organic molecule made up of amino acids
  5. Smaller units that join together to make polymers
  6. A compound that produces hydroxide ions in solution
  7. A compound that forms hydrogen ions in a solution
  8. Mixture in which all of the compounds are evenly distributed
  9. Type of bond formed when atoms share electrons
  10. Negatively or positively charged atom.
  11. Macromolecule made up of carbon, hydrogen, and oxygen
  12. starting material in a chemical reaction
  13. Macromolecule that includes fats, oils, and waxes

24 Clues: Basic unit of matter • Energy needed to start a reaction • A substance that an enzyme acts upon • Attraction between two water molecules • Negatively or positively charged atom. • Organic molecule made up of amino acids • starting material in a chemical reaction • Large molecule made up of smaller subunits • Substance that speeds up a chemical reaction • ...

Chemical Reactions 2017-01-18

Chemical Reactions crossword puzzle
Across
  1. chemical reaction that gives off heat energy
  2. a process that changes substances into new substances
  3. a material with a particular chemical makeup
  4. a chemical reaction that absorbs energy
  5. a change in the matter that doesn't affect it's chemical composition
  6. to act because of something that happened
  7. one of the six elemental gases that doesn't naturally react with other elements
Down
  1. the smallest unit of an element that has all the chemical properties of that element
  2. the ability to do work or cause change, can be changed into different forms and can move between objects
  3. a substance that has a unique composition and the properties; it may exist as a solid, liquid, or gas
  4. a process in which nitrogen in the atmosphere enters the soil and becomes part of living organisms then eventually returns to the atmosphere
  5. interaction between molecules that cause a chemical change, converting an existing substance into a new one
  6. the path or orbit electrons follow around the nucleus of an atom
  7. the physical matter of which living or nonliving things are composed

14 Clues: a chemical reaction that absorbs energy • to act because of something that happened • chemical reaction that gives off heat energy • a material with a particular chemical makeup • a process that changes substances into new substances • the path or orbit electrons follow around the nucleus of an atom • ...

My Chemistry Puzzle 2022-05-16

My Chemistry Puzzle crossword puzzle
Across
  1. a reaction in which two or more substances combine to form a new compound
  2. an element that conducts heat and electricity poorly and that does not form positive ions in an electrolytic solution
  3. the state of matter in which the volume and shape of a substance are fixed
  4. a structural formula in which electrons are represented by dots; dot pairs or dashes between two atomic symbols represent pairs in covalent bonds
  5. one of the elements of Group 18 of the periodic table (helium, neon, argon, krypton, xenon, and radon); unreactive
  6. a prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement
  7. an arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group
  8. a chemical formula that shows the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio
  9. The law that states the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements
  10. one of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine); it combines with most metals to form salts
  11. the substance that is not used up completely in a reaction
  12. the substance that controls the quantity of product that can form in a chemical reaction
  13. a measure of the ability of an atom in a chemical compound to attract electrons
  14. the number of electrons that must be added to or removed from an atom in a combined state to convert the atom into the elemental form
Down
  1. the mass in grams of 1 mol of a substance
  2. a reaction in which one element or radical takes the place of another element or radical in a compound
  3. an ion made of two or more atoms
  4. a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms
  5. the maximum amount of product that can be produced from a given amount of reactant
  6. the oxidation reaction of an organic compound, in which energy as heat is released
  7. a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
  8. a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
  9. the percentage by mass of each element in a compound
  10. an element that is shiny and that conducts heat and electricity well
  11. the attractive force that holds atoms or ions together
  12. the attractive force that holds atoms or ions together
  13. a reaction in which a single compound breaks down to form two or more simpler substances
  14. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  15. the condition of an atom expressed by the number of electrons that the atom needs to reach its elemental form
  16. a region in an atom where there is a high probability of finding electrons

30 Clues: an ion made of two or more atoms • the mass in grams of 1 mol of a substance • the percentage by mass of each element in a compound • the attractive force that holds atoms or ions together • the attractive force that holds atoms or ions together • the substance that is not used up completely in a reaction • ...

Chemistry vocabulary 2021-01-25

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

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

Biomolecules Vocabulary 2024-04-24

Biomolecules Vocabulary crossword puzzle
Across
  1. Base unit of a lipid
  2. A chemical substance formed as a result of a chemical reaction
  3. A carboxylic acid with an amino group and the building block of proteins
  4. Substance that increases the rate of a chemical reaction without being consumed itself
  5. A nitrogen-containing molecule with basic properties
  6. Organic molecule made of smaller sub-unit(proteins,carbohydrates,lipids, or nucleic acids are examples of a bio-molecules)
  7. Material that carries your DNA or genetic code to your offspring: made of nucleotides.
  8. A compound consisting of large molecules made up of simple monomers (small molecules)
  9. Protein that speeds up chemical reactions
  10. A chemical substance that is present at the start of a chemical reaction (will be broken down)
Down
  1. First source of energy for animals / made of mono-di-and polysaccharides
  2. Process of adding a water molecule in the protein molecule to break it apart into amino acids. Now the body can use the amino acids to make its own proteins
  3. The energy needed to start the chemical reaction of breaking down the substrate
  4. Used to make muscles / made of amino acids
  5. The substance acted on by an enzyme the enzyme breaks this down.
  6. The active site (or active center) of an enzyme represents the small region at which the substrate(s) binds and participates in the catalysis
  7. A nonmetallic element found more or less pure in nature (as in diamond and graphite) or as a part of coal and petroleum and of the bodies of living things or obtained artificially
  8. An oily organic compound insoluble in water but soluble in organic solvents, stores energy:made of fatty acid
  9. A sugar molecule containing five carbons that has lost the -OH (hydroxyl group) on its 2' carbon
  10. A simple compound whose molecules can join together to form polymers

20 Clues: Base unit of a lipid • Protein that speeds up chemical reactions • Used to make muscles / made of amino acids • A nitrogen-containing molecule with basic properties • A chemical substance formed as a result of a chemical reaction • The substance acted on by an enzyme the enzyme breaks this down. • A simple compound whose molecules can join together to form polymers • ...

Biology A Unit 1 Vocab 2013-07-15

Biology A Unit 1 Vocab crossword puzzle
Across
  1. best; the most favorable condition
  2. a type of macromolecule that includes fats and oils
  3. energy required to start a reaction (two words)
  4. monomer of nucleic acids
  5. a measure of how active an enzyme is (two words)
  6. the shape or build of something
  7. one of the four types of macromolecule; an example is sugar
  8. what you start with in a chemical reaction
  9. a large molecule containing carbon
  10. the part on an enzyme that a substrate binds to (two words)
  11. represented by a → in chemical reaction
  12. the point at which all the enzyme active sites are filled by substrate (two words)
  13. monomer of protein (two words)
  14. a single unit that can be bonded to other similar units to make a polymer
Down
  1. the purpose of something; what something does
  2. what you end up with in a chemical reaction
  3. a substance made up of many, repeating units
  4. a process that changes one set of chemicals to another (two words)
  5. polymer of nucleotides; function is to store genetic information
  6. part of a whole
  7. reactant that binds to an enzyme
  8. one of the functions of lipid and carbs (two words)
  9. polymer of amino acid

23 Clues: part of a whole • polymer of amino acid • monomer of nucleic acids • monomer of protein (two words) • the shape or build of something • reactant that binds to an enzyme • best; the most favorable condition • a large molecule containing carbon • represented by a → in chemical reaction • what you start with in a chemical reaction • what you end up with in a chemical reaction • ...

Chemistry Crossword Ashleigh 2013-09-20

Chemistry Crossword Ashleigh crossword puzzle
Across
  1. A chemical that changes colour to show whether a substance is acidic, neutral or basic.
  2. An endothermic reaction that takes place in green plants.
  3. A biological catalyst that speeds up a reaction.
  4. The term commonly used for sodium chloride.
  5. A reaction with an acid and base forming a salt and water.
  6. A green chemical found in the chloroplasts of a plant.
  7. A scale used to measure the concentration of hydrogen ions in a solution.
  8. A paper that turns red in acid and blue in a base.
  9. A chemical reaction in which energy in released for uses by animals or plants.
  10. An acid found in lemons and limes.
  11. A base that dissolves in water.
  12. A tablet that helps with heartburn
Down
  1. A sugar formed by photosynthesis and used in respiration.
  2. A term used to describe materials that store carbon in their structures.
  3. A single celled organisim that lives in water.
  4. A substance that releases hydrogen ions and tastes sour.
  5. Acids corrode this material.
  6. An acid found in your stomach.
  7. Rain that has acids such as nitric acid and sulfiric acid dissolved into it.
  8. A substance tha releases hydroxide ions.

20 Clues: Acids corrode this material. • An acid found in your stomach. • A base that dissolves in water. • An acid found in lemons and limes. • A tablet that helps with heartburn • A substance tha releases hydroxide ions. • The term commonly used for sodium chloride. • A single celled organisim that lives in water. • A biological catalyst that speeds up a reaction. • ...

Chemistry Crossword 2015-12-02

Chemistry Crossword crossword puzzle
Across
  1. amount of mass in a given volume of a substance
  2. a group of 17 elements on the periodic table
  3. chemical combination of two or more elements in a specific ratio
  4. description of a substance that can be pounded or rolled into sheets
  5. a extremely small thing
  6. an atom that has lost or gained electrons
  7. when oxygen reacts with another substance and creates energy
  8. when 2 or more substances react
  9. ability of a substance to conduct electricity or heat
  10. change of state
  11. a non-metal combined with a pure substance
  12. a thought that people generally accept
  13. during a reaction the product can escape
  14. a table in which the elements are organized by their physical and chemical properties
Down
  1. group of atoms joined by covalent bonds
  2. materials at the start of a reaction
  3. group 18 elements in the periodic table
  4. During a reaction the product cannot escape
  5. pure substances formed when non-metals combine
  6. Things are made up of __________
  7. new materials created by a reaction
  8. slow chemical change that occurs when oxygen in the air reacts with a metal
  9. a vertical column of elements in the periodic table
  10. change of state
  11. a material that electric charge can move through easily

25 Clues: change of state • change of state • a extremely small thing • when 2 or more substances react • Things are made up of __________ • new materials created by a reaction • materials at the start of a reaction • a thought that people generally accept • group of atoms joined by covalent bonds • group 18 elements in the periodic table • during a reaction the product can escape • ...

chemistry crossword 2021-07-13

chemistry crossword crossword puzzle
Across
  1. brown flake substance acquires on the surface of iron after long exposure to moisture is ?
  2. When Carbon Dioxide passes through lime water it turns lime water?
  3. Fatty foods become rancid due to the process of __
  4. __ gas is filled in packet of chips to prevent rancidity
  5. change in state is _ reaction
  6. ___agent reduces the other reactant and oxidizes itself
  7. we should never change __ of formula
  8. aqueous solution of sodium chloride is known as?
  9. oxidation of fats and oils which makes the smell and taste bad is known as?
  10. plaster of paris changes to _ on mixing with water
Down
  1. Equation which doesn't follow the law of conservation of mass
  2. PH stands for ___in German meaning power
  3. ___Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound
  4. On heating calcium carbonate turns into calcium __
  5. Respiration is example of _ reaction?
  6. Gas evolved when zinc reacts with dilute HCL
  7. Oxide of which element is used as major ingredient in cement
  8. white silver chloride changes into ___colour when exposed to sunlight
  9. hydrogen gas burns with __ sound
  10. What does the symbol (aq) represent in a chemical equation

20 Clues: change in state is _ reaction • hydrogen gas burns with __ sound • we should never change __ of formula • Respiration is example of _ reaction? • PH stands for ___in German meaning power • Gas evolved when zinc reacts with dilute HCL • aqueous solution of sodium chloride is known as? • Fatty foods become rancid due to the process of __ • ...

Hanleys crossword 2024-05-15

Hanleys crossword crossword puzzle
Across
  1. an element or compound
  2. the amount of space that an object occupies, measured in liters or centimeters cubed
  3. the amount of matter in an object
  4. a change in matter that does not affect its chemical composition
  5. a measure of the average kinetic energy of the atoms in a system
  6. A chaeacteristic that can be observed
  7. the smallest unit of an element that has the properties of that element
  8. material that has mass and takes up some amount of space
  9. a chemical change; a process that changes substances into new substances
  10. the transfer of thermal energy
Down
  1. a characteristic of a substance that is measurable or observable during a chemical reaction; includes pH, heat of combustion, reactivity, etc
  2. a weak type of chemical link between a negatively charged atom and a hydrogen atom that is bonded to another negatively charged atom
  3. a combination of substances that can be physically separated from one another
  4. a pure substance that cannot be broken down into simpler substances by chemical reactions
  5. a process that changes substances into new substances product
  6. the substances present before a chemical reaction occurs;
  7. The ability to do work or cause change

17 Clues: an element or compound • the transfer of thermal energy • the amount of matter in an object • A chaeacteristic that can be observed • The ability to do work or cause change • material that has mass and takes up some amount of space • the substances present before a chemical reaction occurs; • a process that changes substances into new substances product • ...

Unit 9: Material Changes 2019-07-31

Unit 9: Material Changes crossword puzzle
Across
  1. A substance that is made in a reaction
  2. To cover an iron object with a metal to prevent rusting
  3. A measure of how acidic or basic something is
  4. A red/brown layer caused byoxygen and water reacting with iron
  5. acid + base --> salt + water
  6. A compound with pH0-7 and forms H+ ions in solution
  7. The process of changing substances into different substances
  8. To put things together
Down
  1. To do something or act in a way because of something else
  2. A change that creates different substances
  3. A substance at the start of a chemical reaction
  4. A change with no new products; the substance stays the same chemically
  5. A way of writing what happens in a chemical reaction
  6. To make a solution have a pH = 7
  7. Mass of reactants and products are the same
  8. A compound with pH7-14 and forms hydroxide (OH-) ions in solution
  9. A solid that forms from a solution during a chemical reaction

17 Clues: To put things together • acid + base --> salt + water • To make a solution have a pH = 7 • A substance that is made in a reaction • A change that creates different substances • Mass of reactants and products are the same • A measure of how acidic or basic something is • A substance at the start of a chemical reaction • A compound with pH0-7 and forms H+ ions in solution • ...

Science 2021-03-10

Science crossword puzzle
Across
  1. a type of bonding that occurs between a metal and a non-metal
  2. a reaction that gives out energy or heat
  3. an element with the symbol O in the periodic table
  4. the centre of an atom is called this
  5. group 7 elements are called what?
  6. the name we use for substances that are made in a chemical reaction.
  7. a word meaning it can be hammered into shape
  8. water is neither acid or alkali, it is classed as __________
Down
  1. a substance made of two or more elements chemically bonded
  2. acids turn this colour with universal indicator
  3. a column in the periodic table is called this
  4. the gas made when an acid and a metal react
  5. what charge do electrons have?
  6. lithium and chlorine would react to make lithium _______.
  7. cooking an egg is a physical or chemical reaction?
  8. thermal decomposition is a reaction where you break something down using ________
  9. alkalis turn this colour with universal indicator

17 Clues: what charge do electrons have? • group 7 elements are called what? • the centre of an atom is called this • a reaction that gives out energy or heat • the gas made when an acid and a metal react • a word meaning it can be hammered into shape • a column in the periodic table is called this • acids turn this colour with universal indicator • ...

Science week 10 2020-07-06

Science week 10 crossword puzzle
Across
  1. The combination of two or more elements
  2. dihydrogen oxide
  3. Most common element in the universe.
  4. Heaviest non-radioactive element
  5. A group that makes up over one-third of the periodic table.
  6. a common alkaline metal used in batteries.
  7. iron chemical symbol is Fe
  8. a reaction that loses heat
  9. any substances formed from the reaction of an acid with a base.
  10. Third element on the periodic table.
  11. something that speeds up the breakdown of a chemical
  12. A group of elements that have a mixture of bother metal and non metal properties.
Down
  1. a reaction that creates heat
  2. When a single compound breaks down into TWO or simpler products.
  3. Surname of the inventor of the periodic table
  4. The first element discovered by Marie Curie
  5. A group of metals that make powerful magnets
  6. a chemical substance that cannot be broken down into a simpler substance
  7. table Is used to sort all known elements.
  8. The only metal able to exist at room temperature.
  9. two or more substances combined to create a single new substance

21 Clues: dihydrogen oxide • iron chemical symbol is Fe • a reaction that loses heat • a reaction that creates heat • Heaviest non-radioactive element • Most common element in the universe. • Third element on the periodic table. • The combination of two or more elements • table Is used to sort all known elements. • a common alkaline metal used in batteries. • ...

Periodic Table Terms 2023-05-08

Periodic Table Terms crossword puzzle
Across
  1. A one or two letter abbreviation of an element
  2. A reaction that absorbs energy in the form of heat
  3. Found on the right of the periodic table line
  4. Found on the left of the periodic table line
  5. Tells how many protons are found in an element
  6. Positively charged subatomic particle
  7. Can form chemical bonds
  8. Tells the average number of protons and neutrons
  9. Bond that forms between a nonmetal and another nonmetal
  10. A reaction that releases energy in the form of heat
  11. Also called a column
  12. Bond that forms between a metal and nonmetal
Down
  1. Found on the line
  2. Also called a row
  3. Low chemical reactivity and are found to the right of the periodic table line
  4. Characteristic of something when it goes under a chemical reaction
  5. Characteristic of something that can be seen without the object changing
  6. Uncharged subatomic particle
  7. A number that indicates how many atoms an element contains
  8. Negatively charged subatomic particle

20 Clues: Found on the line • Also called a row • Also called a column • Can form chemical bonds • Uncharged subatomic particle • Positively charged subatomic particle • Negatively charged subatomic particle • Found on the left of the periodic table line • Bond that forms between a metal and nonmetal • Found on the right of the periodic table line • ...

Chemistry study guide 2016-02-10

Chemistry study guide crossword puzzle
Across
  1. In the nucleus; no charge
  2. Row
  3. The mass of reactants= mass of products in chemical reaction
  4. A region surrounding an atomic nucleus
  5. developed Periodic Table
  6. energy is released
  7. Energy is absorbed
  8. Center of atom
  9. A layer of metal is bonded to the surface of another substance
  10. The smallest segment of an element
Down
  1. Chemically the simplest substance
  2. Column
  3. Gasses with a full outer rim
  4. The abbreviation of an element
  5. electrons in the outer most orbital
  6. brittle, not malleable, not ductile, poor conductors, some liquids
  7. The number of protons in the nucleus
  8. The number of protons and neutrons
  9. Partially conduct electricity
  10. A group of atoms bonded together
  11. what is mixed to create a chemical reaction
  12. Circles nucleus; negative charge
  13. what is created in a chemical reaction
  14. 2 or more different kinds of atoms
  15. solid, shiny, conduct heat and electricity, ductile, malleable
  16. In the nucleus; positive charge

26 Clues: Row • Column • Center of atom • energy is released • Energy is absorbed • developed Periodic Table • In the nucleus; no charge • Gasses with a full outer rim • Partially conduct electricity • The abbreviation of an element • In the nucleus; positive charge • A group of atoms bonded together • Circles nucleus; negative charge • Chemically the simplest substance • ...

Chapter 3 2023-11-17

Chapter 3 crossword puzzle
Across
  1. formed when a dehydration reaction joins two monosaccharides
  2. differ in the covalent arrangement of their atoms
  3. stores the potential to react with water, releasing energy that can be used by the cell
  4. occurs when two monomers bond together through the loss of a water molecule
  5. structural polysaccharide, found in the exoskeleton of arthropods
  6. the reverse of dehydration reaction
  7. chemical groups that affect molecular function by being directly involved in chemical reactions
  8. molecular formulas that are usually multiples of CH2O
  9. long molecule consisting of many similar building blocks
  10. storage polysaccharide of plants, entirely glucose monomers
Down
  1. compound containing carbon
  2. polymers of sugars
  3. a covalent bond formed from dehydration reaction
  4. organic molecules consisting of only carbon and hydrocarbon
  5. compounds that have the same number of elements but different structures and properties
  6. small building block molecules
  7. major component of the tough wall of plant cells
  8. speed up chemical reactions
  9. storage polysaccharide in animals
  10. sugars and polymers of sugars

20 Clues: polymers of sugars • compound containing carbon • speed up chemical reactions • sugars and polymers of sugars • small building block molecules • storage polysaccharide in animals • the reverse of dehydration reaction • a covalent bond formed from dehydration reaction • major component of the tough wall of plant cells • differ in the covalent arrangement of their atoms • ...

Chemistry Crossword 2025-12-11

Chemistry Crossword crossword puzzle
Across
  1. horizontal row on periodic table
  2. neutral particle in the nucleus
  3. unit equal to 6.022×10²³ particles
  4. scientist whose number is 6.022×10²³
  5. number of protons in an atom
  6. change in state, not identity
  7. pure substance made of one type of atom
  8. starting substance in a chemical reaction
  9. energy required to remove an electron
  10. positively charged particle
  11. substance formed by a chemical reaction
  12. basic unit of matter
  13. dense center of the atom
  14. weighted average mass of all isotopes of an element
Down
  1. total protons and neutrons
  2. force that holds atoms together
  3. process where substances are transformed
  4. atom with a charge
  5. vertical column on periodic table
  6. atoms with same protons but different neutrons
  7. group of atoms bonded together
  8. difference between actual and experimental value
  9. creator of the periodic table
  10. mass cannot be created or destroyed
  11. substance of two or more bonded elements
  12. symbolic representation of a chemical reaction
  13. negatively charged particle

27 Clues: atom with a charge • basic unit of matter • dense center of the atom • total protons and neutrons • negatively charged particle • positively charged particle • number of protons in an atom • creator of the periodic table • change in state, not identity • group of atoms bonded together • force that holds atoms together • neutral particle in the nucleus • ...

Chapter 6: Chemical Reactions Word Search 2013-12-19

Chapter 6: Chemical Reactions Word Search crossword puzzle
Across
  1. Material that releases energy when it burns
  2. The study of matter and how it changes
  3. water molecule
  4. The substances you have at the beginning of a chemical equation
  5. Breaks down compounds into simpler products
  6. Material used to decrease the rate of a reaction
  7. new substances formed after a reaction is complete
Down
  1. Cells in your body that contain biological catalysts
  2. Anything that has mass and takes up space
  3. Amount of a substance in a given volume
  4. Rapid reaction between oxygen and fuel
  5. When two(2) or more elements or compounds combine to make a more complex substance
  6. A number placed in front of a chemical formula in an equation
  7. A solid that forms from a solution during a chemical reaction

14 Clues: water molecule • Rapid reaction between oxygen and fuel • The study of matter and how it changes • Amount of a substance in a given volume • Anything that has mass and takes up space • Material that releases energy when it burns • Breaks down compounds into simpler products • Material used to decrease the rate of a reaction • ...

Reactions 2012-11-19

Reactions crossword puzzle
Across
  1. type of reaction where the temperature increases
  2. if a solid is broken up into smaller pieces the __________ ________ increases
  3. increasing the surface area of a reactant will __________ the rate of reaction
  4. a measure of how much solute is dissolved in a solvent
Down
  1. increasing the temperature causes the rate of reaction to _____________
  2. type of reaction where the temperature decreases
  3. the rate of reaction refers to the __________ at which the reaction takes place
  4. new bonds form and create the __________ during a chemical reaction
  5. the higher the concentration of a reactant the ____________ the reaction
  6. during a chemical reaction bonds are broken in the ____________
  7. endothermic changes __________ heat energy
  8. exothermic changes __________ heat energy

12 Clues: exothermic changes __________ heat energy • endothermic changes __________ heat energy • type of reaction where the temperature decreases • type of reaction where the temperature increases • a measure of how much solute is dissolved in a solvent • during a chemical reaction bonds are broken in the ____________ • ...

Macromolecules 2020-12-09

Macromolecules crossword puzzle
Across
  1. A single sugar molecule such as glucose or fructose, the simplest type of sugar.
  2. Polymer composed of amino acids linked by peptide bonds; folds into a particular structure depending on bonds between amino acids
  3. Carbohydrates that are made up of more than two monosaccharides. Examples: starch, glycogen, cellulose
  4. A chemical reaction that breaks apart a larger molecule by adding a molecule of water
  5. Substance that decreases activation energy and increases reaction rate in a chemical reaction
  6. Polymer of nucleotides; the genetic material of organisms
  7. A very large organic molecule composed of many smaller molecules
  8. Large, carbon-based molecule formed by monomers
  9. A chemical reaction in which molecules combine by removing water
  10. Process by which substances change into different substances through the breaking and forming of chemical bonds
Down
  1. Molecule composed of Carbon hydrogen and oxygen; includes sugars and starches
  2. Molecule that makes up proteins; composed of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur
  3. A double sugar molecule made of two monosaccharides bonded together. Examples: Sucrose, lactose, maltose
  4. Molecular subunit of a polymer
  5. a substance deposited in bodily tissues as a store of carbohydrates. It is a polysaccharide. Highly branched chains.
  6. polysaccharide consisting of glucose monomers that reinforces plant-cell walls
  7. Protein that catalyze chemical reactions for organisms
  8. Monomer that forms DNA and has a phosphate group, a sugar, and a nitrogen-containing base. Examples: Adenine, Guanine, Cytosine, Thymine, and Uracil
  9. Nonpolar molecule composed of carbon, hydrogen and oxygen; includes fats, oils and waxes
  10. A storage polysaccharide in plants consisting entirely of glucose. Branched chains of glucose.

20 Clues: Molecular subunit of a polymer • Large, carbon-based molecule formed by monomers • Protein that catalyze chemical reactions for organisms • Polymer of nucleotides; the genetic material of organisms • A very large organic molecule composed of many smaller molecules • A chemical reaction in which molecules combine by removing water • ...

Chemical kinetics 2022-02-24

Chemical kinetics crossword puzzle
Across
  1. the measurement of the outer surface of an object
  2. the reaction that forms from reactants
  3. the internal energy stored in the reactants; only the difference between the enthalpies of products and reactants can be known
  4. shows the energy changes that take place during the course of a reaction
  5. If a reaction can take place by more than one route and the initial and final conditions are the same, the total enthalpy change is the same for each route
  6. substance that speeds up the rate of a chemical reaction
  7. a reaction that releases heat
Down
  1. a measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
  2. Energy needed to get a reaction started
  3. a reaction that absorbs energy
  4. a substance that slows or prevents a reaction
  5. measure of how fast a chemical reaction occurs
  6. Middle step not found in nature, used to make consumer products/can't buy
  7. the area of chemistry that is concerned with reaction rates and reaction mechanisms
  8. increases the interaction between solute and solvent

15 Clues: a reaction that releases heat • a reaction that absorbs energy • the reaction that forms from reactants • Energy needed to get a reaction started • a substance that slows or prevents a reaction • measure of how fast a chemical reaction occurs • the measurement of the outer surface of an object • increases the interaction between solute and solvent • ...

Stoichiometry Vocab 2026-01-07

Stoichiometry Vocab crossword puzzle
Across
  1. Small number written below and to the right of an element symbol
  2. A unit used in chemistry to measure the amount of a substance
  3. reactant The reactant left over after a reaction is complete
  4. The substances that start a chemical reaction
  5. Number of particles in one mole
  6. The substances that are formed in a chemical reaction
  7. reactant The reactant that runs out first and limits product information
Down
  1. equation A chemical equation with equal number of atoms on both sides
  2. The number placed in front of a chemical formula in an equation
  3. yield The maximum amount of product that can be formed from a reaction
  4. yield A calculation comparing actual yield to theoretical yield
  5. factor A ratio used to convert between units in stoichiometry
  6. yield The amount of product actually produced in a lab
  7. mass The mass of one mole of a substance

14 Clues: Number of particles in one mole • The substances that start a chemical reaction • mass The mass of one mole of a substance • The substances that are formed in a chemical reaction • A unit used in chemistry to measure the amount of a substance • yield The amount of product actually produced in a lab • ...

Hanleys crossword 2024-05-15

Hanleys crossword crossword puzzle
Across
  1. an element or compound
  2. the amount of space that an object occupies, measured in liters or centimeters cubed
  3. the amount of matter in an object
  4. a change in matter that does not affect its chemical composition
  5. a measure of the average kinetic energy of the atoms in a system
  6. A chaeacteristic that can be observed
  7. the smallest unit of an element that has the properties of that element
  8. material that has mass and takes up some amount of space
  9. a chemical change; a process that changes substances into new substances
  10. the transfer of thermal energy
Down
  1. a characteristic of a substance that is measurable or observable during a chemical reaction; includes pH, heat of combustion, reactivity, etc
  2. a weak type of chemical link between a negatively charged atom and a hydrogen atom that is bonded to another negatively charged atom
  3. a combination of substances that can be physically separated from one another
  4. a pure substance that cannot be broken down into simpler substances by chemical reactions
  5. a process that changes substances into new substances product
  6. the substances present before a chemical reaction occurs;
  7. The ability to do work or cause change

17 Clues: an element or compound • the transfer of thermal energy • the amount of matter in an object • A chaeacteristic that can be observed • The ability to do work or cause change • material that has mass and takes up some amount of space • the substances present before a chemical reaction occurs; • a process that changes substances into new substances product • ...

Unit 4 Review 2022-03-21

Unit 4 Review crossword puzzle
Across
  1. The chemical property of being able to burn
  2. The ability of an object to transfer heat or electricity to another object.
  3. A substance produced in a chemical reaction
  4. capable of being shaped; physical property
  5. Composition of matter which depends on temperature.
  6. smell; chemical property
  7. the attraction caused by a magnetic force
  8. the temperature at which a substance changes from a liquid to a gas; physical property
Down
  1. the principle stating that matter is not created or destroyed during a chemical reaction
  2. Mass per unit volume; physical property
  3. A change that occurs when one or more substances change into entirely new substances with different properties.
  4. A change in a substance that does not involve a change in the identity of the substance
  5. A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
  6. The corrosion of iron or steel (water and oxygen must be present for rusting to occur).
  7. A measure of how much solute can dissolve in a given solvent at a given temperature.
  8. the temperature at which a substance changes from a solid to a liquid; physical property
  9. A starting material in a chemical reaction

17 Clues: smell; chemical property • Mass per unit volume; physical property • the attraction caused by a magnetic force • capable of being shaped; physical property • A starting material in a chemical reaction • The chemical property of being able to burn • A substance produced in a chemical reaction • Composition of matter which depends on temperature. • ...

Chapter 2 Crossword - Tyler Smith 2018-10-01

Chapter 2 Crossword - Tyler Smith crossword puzzle
Across
  1. A change in a substance that does not change the identity of the substance (e.g., a change of form or state).
  2. A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
  3. A pure substance made from two or more elements that are chemically combined.
  4. An organic compound comprised of the ele­ments carbon, hydrogen, and oxygen; includes sugars, starch, and cellulose.
  5. The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
  6. The attraction between like particles within polar substances.
  7. The tendency of energy to disperse and become less available to do work.
  8. A substance that is present before a chemical reaction and takes part in it, usually shown on the left­hand side of a chemical equation.
  9. The attraction of particles in one substance for particles in a different substance.
  10. The building block of matter; the smallest possible particle of an element.
Down
  1. A class of simple organic compounds important in living things as a source of both energy and structure.
  2. A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
  3. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
  4. A measurement of the average speed of the particles within a substance.
  5. A naturally occurring catalyst, usually a protein.
  6. An attraction between two atoms as a result of sharing or transferring valence electrons.
  7. A class of organic compounds that serve as the building blocks of proteins.
  8. A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
  9. The substances formed during a chemical reaction usually indicated on the right­hand side of a chemical equation.
  10. A pure substance made of only one kind of atom.

20 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The attraction between like particles within polar substances. • A measurement of the average speed of the particles within a substance. • The tendency of energy to disperse and become less available to do work. • ...

CHemistry Vocab. 221 2021-01-26

CHemistry Vocab. 221 crossword puzzle
Across
  1. - The amount of space an object occupies.
  2. - Measure of the amount of matter in an object.
  3. Point - Temperature at which a liquid substance becomes a gas.
  4. - The characteristic smell of a substance.
  5. The ability to be hammered or pressed down
  6. The ability to produce electricity
  7. Point - Temperature at which a solid substance becomes a liquid.
  8. - A chemical substance that produces hydrogen ions in solution and tastes sour.
  9. - A chemical substance that produces hydroxide ions in solution and tastes bitter.
  10. - Chemical reaction in which thermal energy is released.
  11. - Measure of acidity or basicity of a substance
  12. The characteristic of being able to attract because of an electrical force
  13. Property - A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability).
  14. Change - Process where one or more substances are altered into new and different substances.
  15. Property - A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point).
  16. - Property of a substance relating to how easily it reacts with other substances.
Down
  1. - Chemical reaction in which thermal energy is absorbed.
  2. - The readiness of a substance to produce hydrogen ions.
  3. The ability to be drawn out into thin wires
  4. - Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  5. - Property of a substance defining how easily it ignites and burns.
  6. The ability to rust do to oxygen
  7. - The amount of matter in a defined volume. (density = mass/volume)
  8. Reaction - Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  9. - A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  10. Change - A type of change in which the form of matter is altered but one substance is not transformed into another.
  11. - The external features of a substance.
  12. - The readiness of a substance to produce hydroxide ions.
  13. The characteristic of a slow moving sticky substance

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

Chemistry 2021-01-25

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

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

Chemistry Vocabulary 2021-01-25

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

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

Chemistry PC 252 vocab 2021-01-26

Chemistry PC 252 vocab crossword puzzle
Across
  1. - The external features of a substance.
  2. The ability to rust do to oxygen
  3. Point - Temperature at which a liquid substance becomes a gas.
  4. - Chemical reaction in which thermal energy is released.
  5. - The amount of matter in a defined volume. (density = mass/volume)
  6. Reaction - Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  7. The ability to produce electricity
  8. The characteristic of being able to attract because of an electrical force
  9. - The readiness of a substance to produce hydrogen ions.
  10. The characteristic of a slow moving sticky substance
  11. Property - A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point).
  12. - The readiness of a substance to produce hydroxide ions.
  13. Change - A type of change in which the form of matter is altered but one substance is not transformed into another.
  14. The ability to be drawn out into thin wires
Down
  1. - The amount of space an object occupies.
  2. - Property of a substance relating to how easily it reacts with other substances.
  3. Point - Temperature at which a solid substance becomes a liquid.
  4. - A chemical substance that produces hydroxide ions in solution and tastes bitter.
  5. - Chemical reaction in which thermal energy is absorbed.
  6. The ability to be hammered or pressed down
  7. - A chemical substance that produces hydrogen ions in solution and tastes sour.
  8. - Property of a substance defining how easily it ignites and burns.
  9. - Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  10. - A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  11. Property - A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability).
  12. Change - Process where one or more substances are altered into new and different substances.
  13. - The characteristic smell of a substance.
  14. - Measure of the amount of matter in an object.
  15. - Measure of acidity or basicity of a substance.

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

Biomolecules & Enzymes Crosswords 2024-05-01

Biomolecules & Enzymes Crosswords crossword puzzle
Across
  1. First source of energy for animals / made of mono-di-and polysaccharides
  2. Material that carries your DNA or genetic code to your offspring: made of nucleotides.
  3. An oily organic compound insoluble in water but soluble in organic solvents, stores energy: made of fatty acid
  4. Substance that increases the rate of a chemical reaction without being consumed itself
  5. The substance acted on by an enzyme the enzyme breaks this down.
  6. A carboxylic acid with an amino group and the building block of proteins
  7. A compound consisting of large molecules made up of simple monomers (small molecules)
  8. Used to make muscles / made of amino acids
  9. Organic molecule made of smaller subunits. (proteins, carbohydrates, lipids, or nucleic acids are examples of a bio-molecules)
  10. A simple compound whose molecules can join together to form polymers
  11. A nitrogen-containing molecule with basic properties
Down
  1. The active site (or active center) of an enzyme represents the small region at which the substrate(s) binds and participates in the catalysis
  2. A sugar molecule containing five carbons that has lost the -OH (hydroxyl group) on its 2' carbon
  3. The energy needed to start the chemical reaction of breaking down the substrate
  4. Base unit of a lipid
  5. Process of adding a water molecule in the protein molecule to break it apart into amino acids. Now the body can use the amino acids to make its own proteins
  6. A nonmetallic element found more or less pure in nature (as in diamond and graphite) or as a part of coal and petroleum and of the bodies of living things or obtained artificially
  7. Protein that speeds up chemical reactions
  8. A chemical substance that is present at the start of a chemical reaction (will be broken down)
  9. A chemical substance formed as a result of a chemical reaction

20 Clues: Base unit of a lipid • Protein that speeds up chemical reactions • Used to make muscles / made of amino acids • A nitrogen-containing molecule with basic properties • A chemical substance formed as a result of a chemical reaction • The substance acted on by an enzyme the enzyme breaks this down. • A simple compound whose molecules can join together to form polymers • ...

Chemistry Crossword Puzzle 2020-05-29

Chemistry Crossword Puzzle crossword puzzle
Across
  1. a substance that readily vaporizes.
  2. mixture of gases produced by the breakdown of organic matter in the absence of oxygen.
  3. metalloid with element symbol Te and atomic number 52.
  4. forming a scalloped shape upon exposure to a hypertonic solution.
  5. number of electrons needed to fill the outermost electron shell.
  6. any element found in group IA (first column) of the periodic table.
  7. state of matter with no defined shape or volume consisting of ions and electrons.
  8. material which permits the flow of energy
  9. the process of adding chlorine to drinking water to disinfect it and kill germs.
  10. discrete packet of electromagnetic radiation.
  11. a substance that forms ions in aqueous solution.
  12. irreversible damage to a material or tissue due to a chemical reaction.
  13. a chemical substance that neutralizes alkalis and turns litmus red.
  14. distinct form of matter with uniform chemical and physical properties.
  15. a protein that functions as a catalyst for a chemical reaction.
  16. method of separating mixtures by removing the liquid layer from a precipitate.
  17. study of matter and energy and the interactions between them
  18. scientific study of heat, work, and related properties of mechanical and chemical systems.
  19. mass per unit volume.
  20. solution containing a small amount of solute relative to the amount of solvent.
  21. study of quantitative relationships between substances undergoing a physical or chemical change.
  22. heterogeneous mixture of solid particles in a fluid.
  23. process used to separate solids from liquids or gases using a filter medium that allows the fluid to pass through but not the solid.
  24. substance that is dissolved in a chemical solution.
  25. very old study and philosophy of how to change basic substances into other substances.
  26. substance that increases the chemical reaction rate by decreasing its activation energy.
  27. a substance that forms ions in aqueous solution.
Down
  1. process characterized by a spontaneous transition of molecules from the liquid phase to vapor phase.
  2. movement of a fluid from a region of higher concentration to lower concentration.
  3. any alloy of mercury and one or more other metals.
  4. an aqueous solution with a pH greater than 7.
  5. a chemical bond that involves the sharing of electron pairs between atoms.
  6. amount of matter a substance contains or property of matter that resists acceleration.
  7. process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode.
  8. passage of direct current through an ion-conducting solution.
  9. loss of electrons by an atom, molecule or ion in a chemical reaction.
  10. thermodynamic property of a system that is the sum of the internal energy and the product of pressure and volume.
  11. a homogenous mixture in which dispersed particles do not settle out.
  12. measure of how well molecules stick to each other or group together.
  13. matter in which atoms, ions, or molecules are packed into an ordered, repeating three-dimensional pattern.
  14. half reaction in which a chemical species decreases its oxidation number, generally by gaining electrons.
  15. instrument designed to measure heat flow of a chemical reaction or physical change.
  16. the chemical breakdown of a substance by bacteria orother microorganisms.
  17. unit of concentration that is the moles of solute divided by the kilograms of solvent.
  18. movement of gas through a pore or capillary into a vacuum or another gas.
  19. substance made by mixing substance together
  20. binding of an element to itself via covalent bonds
  21. group of techniques used to separate mixture components by passing the mixture through a stationary phase.
  22. chemical species formed when two or more atoms form a chemical bond.
  23. chemical species formed by two or more atoms that share chemical bond.
  24. component of a solution present in the greatest proportion.
  25. the positively charged electrode by which the electrons leave a device.

52 Clues: mass per unit volume. • a substance that readily vaporizes. • material which permits the flow of energy • substance made by mixing substance together • an aqueous solution with a pH greater than 7. • discrete packet of electromagnetic radiation. • a substance that forms ions in aqueous solution. • a substance that forms ions in aqueous solution. • ...

Science 2013-12-19

Science crossword puzzle
Across
  1. Is a material that increases the rate of a reaction by lowering the activation energy
  2. Has mass and take up space
  3. Matter can enter from or escape to the surroundings
  4. Is a material that releases energy when it bruns
  5. Solid that forms from a solution during a chemical reaction
  6. Breaks down compounds into simpler products
  7. The study of matter and how it changes
  8. It can be observed without changing a substance into another substance
  9. When the reaction is complete, you have a substance
  10. The cells of the body (as in all living things) contain biological catalysts
  11. The substance you have at the beginning
  12. The minimum amount of energy needed to start a chemical reaction
  13. A material used to decrase the rate of a reaction
Down
  1. A rapid reaction between oxygen and a substance called a fuel
  2. When one element replaces another in a compound
  3. Is any change of alters
  4. Matter is not allowed to enter or leave
  5. When two or more elements or compounds combine to make a more complex substance
  6. Substance that describes its abilty to change into other substance
  7. Is the amonut os a substance in a given volume

20 Clues: Is any change of alters • Has mass and take up space • The study of matter and how it changes • Matter is not allowed to enter or leave • The substance you have at the beginning • Breaks down compounds into simpler products • Is the amonut os a substance in a given volume • When one element replaces another in a compound • Is a material that releases energy when it bruns • ...

Chemistry 2013-03-25

Chemistry crossword puzzle
Across
  1. Calculations of quantities in chemical reactions
  2. Reactant that is not completely used up in a reaction
  3. A chemical equation that does not indicate the relative amounts of reactants and products
  4. A representation of a chemical reaction
  5. Each side of the equation has the same number of atoms of each element and mass is conserved
  6. A substance that speeds up the reaction but is not used up in the reaction
  7. The actual amount of a product formed when a reaction happens in a laboratory.
Down
  1. Small whole numbers that are placed in front of the formulas in an equation in order to balance it
  2. Maximum amount of product that could be formed from given amount of reactants
  3. Ratio of the actual yield to the theoretical yield expressed as a percent
  4. Determines the amount of product that can be formed by a reaction.
  5. Conversion factor derived from the coefficients of a balance chemical equation

12 Clues: A representation of a chemical reaction • Calculations of quantities in chemical reactions • Reactant that is not completely used up in a reaction • Determines the amount of product that can be formed by a reaction. • Ratio of the actual yield to the theoretical yield expressed as a percent • ...

Energy 2016-05-09

Energy crossword puzzle
Across
  1. the transfer of energy by collisions between the atoms and molecules in a material
  2. chemical reactions that release heat
  3. a substance that changes the rate of a chemical reaction without any permanent change to its own structure
  4. the energy an object has due to its motion
  5. a scientific law stating that energy cannot be created or destroyed
  6. energy that is stored because of an object's position
  7. transfer of energy by waves
Down
  1. bonds the forces holding atoms together in a molecule
  2. a chemical reaction that absorbs heat energy
  3. the transfer of energy from one object to another due to a difference in temperature
  4. the distance traveled per second by an object
  5. a particle formed when two or more atoms bond together
  6. transfer of heat when particles move between objects or areas that differ in temperature
  7. the average kinetic energy of the particles in an object
  8. the ability to cause change

15 Clues: the ability to cause change • transfer of energy by waves • chemical reactions that release heat • the energy an object has due to its motion • a chemical reaction that absorbs heat energy • the distance traveled per second by an object • bonds the forces holding atoms together in a molecule • energy that is stored because of an object's position • ...

Unit-3 2023-05-18

Unit-3 crossword puzzle
Across
  1. The stored energy that matter possesses as a result of its position or internal structure
  2. A chemical reaction that involves the loss of an electron.
  3. A specific reactant acted upon by an enzyme
  4. Second stage of photosynthesis in which energy from ATP and NADPH is used to make sugars
  5. Protein substances that speed up chemical reactions
  6. Heat energy
  7. Anaerobic process in which glucose is broken down into two molecules of pyruvate and two net ATP and 2 NADH are produced
Down
  1. The energy of motion
  2. releases energy by breaking down complex molecules to simpler compounds
  3. Energy needed to get a reaction started
  4. The stored energy that matter possesses as a result of its position or internal structure
  5. The specific portion of an enzyme that attaches to the substrate by means of weak chemical bonds
  6. Flattened membrane sacs inside the chloroplast (inner membrane), used to convert light energy to chemical energy
  7. Organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis
  8. requires energy to build a complex molecule from simpler compounds
  9. Energy Potential energy available for release in a chemical reaction
  10. Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen, sugars and starches
  11. Fuid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water

18 Clues: Heat energy • The energy of motion • Energy needed to get a reaction started • A specific reactant acted upon by an enzyme • Protein substances that speed up chemical reactions • A chemical reaction that involves the loss of an electron. • requires energy to build a complex molecule from simpler compounds • ...

Energetics Topic 5 2021-03-09

Energetics Topic 5 crossword puzzle
Across
  1. all the reactants, products, and any solvents
  2. average bond breaking energy for the conversion of gaseous molecules into gaseous atoms; average of that bond in a range of similar compounds
  3. the energy stored in chemical bonds that can be converted to heat
  4. change which gives out energy to the surroundings
  5. transfer of matter and energy is possible across its boundary
  6. exchange of energy between a reaction mixture (system) and its surroundings when the reaction takes place at constant pressure; units = kJ mol-1
  7. change which takes in energy from the surroundings
  8. a measure of the average kinetic energy of the particles present
  9. matter can neither enter nor exit, but can only move around inside
  10. allows no transfer of matter, though energy may be transferred across the boundary
  11. energy required to raise the temperature of one gram of a substance by one Kelvin
  12. enthalpy change when 1 mol of a substance undergoes complete combustion in excess oxygen under standard conditions
Down
  1. energy stored in chemical bonds of reactants and products
  2. diagram showing the relative enthalpy of reactants and products, as well as the activation energy of a reaction
  3. enthalpy change when molar quantities of reactants in their normal states react to form products in their normal states under standard conditions
  4. the minimum energy needed in a collision between molecules if they are to react; the height of the energy barrier separating reactants and products during a chemical reaction
  5. first law of thermodynamics
  6. the study of heat changes that occur during chemical reactions
  7. enthalpy change when 1 mol of a substance in its standard state is formed from its elements in their standard states
  8. the apparatus that contains the reaction, thermometers or other measuring devices, the laboratory, and everything external to the reacting substances
  9. apparatus for measuring the energy change during a chemical reaction (typically it is insulated from its surroundings and contains water)
  10. state of a system at standard conditions
  11. the enthalpy change for a reaction is the same whether it takes place in one step or a series of steps
  12. the study of energy and how it is interconverted
  13. 250C (298K) and pressure 100 kPa; denoted by superscript q or 0
  14. can be neither created nor destroyed; it can only be converted between different forms’
  15. a cycle of chemical equations showing the enthalpy changes for each equation
  16. a form of energy

28 Clues: a form of energy • first law of thermodynamics • state of a system at standard conditions • all the reactants, products, and any solvents • the study of energy and how it is interconverted • change which gives out energy to the surroundings • change which takes in energy from the surroundings • energy stored in chemical bonds of reactants and products • ...

Quarter 3 Chemistry Vocabulary 2025-03-11

Quarter 3 Chemistry Vocabulary crossword puzzle
Across
  1. A state of matter with a definite shape and volume
  2. The temperature and pressure at which solid, liquid, and gas phases coexist in equilibrium
  3. The number of representative particles in one mole (6.022 × 10²³)
  4. A state of matter with a definite volume but no fixed shape
  5. A solution where water is the solvent
  6. Standard Temperature and Pressure (0°C and 1 atm)
  7. A reaction where a substance reacts with oxygen, often producing heat and light
  8. The reactant that is completely consumed in a reaction, limiting the amount of product formed
  9. The ratio of moles of reactants and products in a balanced equation
  10. The boiling point of a liquid at 1 atmosphere of pressure
  11. The smallest unit of a substance, such as atoms, molecules, or formula units
  12. The pressure exerted by a vapor in equilibrium with its liquid or solid phase
  13. A reaction where two compounds exchange positive ions to form two new compounds
  14. A unit that measures the amount of substance, containing Avogadro’s number of particles
  15. A solid without a defined crystalline structure
  16. The process where a solid changes directly to a gas without becoming a liquid
  17. A representation of a chemical reaction using symbols and formulas
Down
  1. A number placed in front of a formula in a chemical equation to balance it
  2. A graph showing the conditions of temperature and pressure where different states of matter exist
  3. A reaction where a single compound breaks down into two or more simpler substances
  4. A chemical equation where the number of atoms of each element is the same on both sides
  5. The temperature at which a solid becomes a liquid
  6. A reaction where one element replaces another in a compound
  7. The temperature at which a liquid turns into a gas
  8. The percent by mass of each element in a compound
  9. A reaction where two or more substances combine to form a single product
  10. A chemical equation that does not indicate the relative amounts of reactants and products
  11. The calculation of reactants and products in a chemical reaction
  12. The energy of motion
  13. The volume occupied by one mole of gas at STP (22.4 L)
  14. A state of matter with no definite shape or volume
  15. The temperature and pressure at which the liquid and gas phases become indistinguishable
  16. The process where a gas changes directly into a solid without becoming a liquid
  17. The simplest whole-number ratio of elements in a compound
  18. The mass of one mole of a substance, expressed in grams per mole

35 Clues: The energy of motion • A solution where water is the solvent • A solid without a defined crystalline structure • The temperature at which a solid becomes a liquid • The percent by mass of each element in a compound • Standard Temperature and Pressure (0°C and 1 atm) • A state of matter with a definite shape and volume • ...