chemical reaction Crossword Puzzles

Word Work List #9 - Law of Conservation of Matter 2022-09-29

Word Work List #9 - Law of Conservation of Matter crossword puzzle
Across
  1. - A combination of chemical symbols and numbers to represent a substance.
  2. - chemical equation with the same number of atoms of each element on both sides of the equation; supports LOCO mass
  3. - A process that produces chemical change, resulting in new substances that have properties different from those of the original substances.
  4. - discovered the law of conservation of mass and defined an element as a basic substance that could not be further broken down by the methods of chemistry
Down
  1. - States that mass is neither created nor destroyed, therefore the mass of the products of a chemical change is always the same as the mass of the reactants.
  2. - A substance that exists before a chemical reaction begins.
  3. - A number in front of a chemical compound or symbol in an equation that indicates how many molecules of each compound or element are involved in a reaction.
  4. - A system in which matter can enter from or escape to the surroundings. A chemical reaction that occurs in a container without a lid/sealing mechanism.
  5. - A shorthand form of writing what reactants are used and what products are formed in a chemical reaction.
  6. - A substance that forms as a result of a chemical reaction.
  7. - A number written slightly below and behind a chemical symbol that shows how many atoms of an element are in a compound.
  8. - A system in which no matter is allowed to enter or leave. A chemical reaction that occurs inside a sealed, airtight container.

12 Clues: - A substance that exists before a chemical reaction begins. • - A substance that forms as a result of a chemical reaction. • - A combination of chemical symbols and numbers to represent a substance. • - A shorthand form of writing what reactants are used and what products are formed in a chemical reaction. • ...

changes in matter 2025-04-28

changes in matter crossword puzzle
Across
  1. chemical reactions
  2. change
  3. energy in motion
  4. Celsius
  5. stuff that takes up space
  6. two or more atoms that are chemically bonded together
  7. reaction order change
  8. to put together or be joined to form a whole
  9. stimulant
  10. connection
Down
  1. vital force
  2. basic component or fundamental part
  3. an attraction between atoms
  4. change melting ice
  5. heat absorption
  6. a starting material
  7. blend,amalgam,melange,or medley appearance or physical state
  8. sodium chloride
  9. amount of space occupied
  10. the amount of matter an object contains
  11. smallest unit
  12. property observed without reaction
  13. property chemical stability
  14. matter,substances

24 Clues: change • Celsius • stimulant • connection • vital force • smallest unit • heat absorption • sodium chloride • energy in motion • matter,substances • change melting ice • chemical reactions • a starting material • reaction order change • amount of space occupied • stuff that takes up space • an attraction between atoms • property chemical stability • basic component or fundamental part • ...

Chapter 7 Revision Sheet 2016-05-20

Chapter 7 Revision Sheet crossword puzzle
Across
  1. The new substances that are formed during a chemical reaction
  2. What Alfred Nobel invented
  3. Number of electrons the first shell can hold
  4. What takes place when the bonds between atoms are broken and new bonds are formed, creating a new arrangement of atoms and at least one new substance.
  5. The law of … which states that matter can be neither created nor destroyed during a chemical reaction.
  6. An atom with a different number of protons and neutrons
  7. Complete the equation: methane + oxygen —> _____ ______ + water
  8. The number that tells you how many molecules are in an equation
  9. An ion with a negative charge
  10. A charged atom
  11. Chemical reactions that absorb energy from their surroundings
  12. The protons and neutrons in an atom make up the _____
  13. The number that tells you how many atoms are in a molecule
  14. The substance that reacts with oxygen in a combustion reaction
  15. Complete the equation: hydrogen + _____ —> water
Down
  1. The number that tells you the charge of an ion
  2. Reactions in which a substance reacts with oxygen and heat is released
  3. The law of ... which states that a compound, no matter how it is formed, always contains the same relative amounts of each element.
  4. The number of protons on an atom. Determines the element
  5. The original substances in a chemical reaction
  6. An ion with a positive charge
  7. Chemical reactions that release energy
  8. The ability to do work
  9. Combustion reactions are examples of ______ reactions
  10. Element represented by the letter K
  11. A change of state is an example of a _____ change
  12. All chemical equations need to be _______
  13. The shell which can hold up to 18 electrons

28 Clues: A charged atom • The ability to do work • What Alfred Nobel invented • An ion with a positive charge • An ion with a negative charge • Element represented by the letter K • Chemical reactions that release energy • All chemical equations need to be _______ • The shell which can hold up to 18 electrons • Number of electrons the first shell can hold • ...

Rates of Reaction Crossword 2013-10-17

Rates of Reaction Crossword crossword puzzle
Across
  1. The most common type of biocatalyst.
  2. What is the order of the following reaction: r = k[H2O2].
  3. The point at which a reaction has the highest amount of potential energy.
  4. A series of elemental steps by which a chemical reaction occurs.
  5. The minimum energy that reactant molecules must possess for a reaction to be successful.
  6. A substance that alters the rate of a chemical reaction without itself being permanently changed.
  7. The amount of a substance per a distinct space.
Down
  1. A collision between two reactants with correct orientation and sufficient energy to surpass the activation energy.
  2. The measurement of the average kinetic energy of the particles in a substance.
  3. Where an atom is aligned in 3D, important for an effective reaction to take place.
  4. Represented by the letter K, and unique for a single reaction at a specified temperature.
  5. Reaction which releases energy into the surroundings
  6. _______ rate of reaction: The rate of reaction at a specific point in time.
  7. The time it takes for half the initial reactants to be used up.
  8. The elements or chemicals that you start with before the reaction.

15 Clues: The most common type of biocatalyst. • The amount of a substance per a distinct space. • Reaction which releases energy into the surroundings • What is the order of the following reaction: r = k[H2O2]. • The time it takes for half the initial reactants to be used up. • A series of elemental steps by which a chemical reaction occurs. • ...

Metabolism and Enzymes ! 2021-10-22

Metabolism and Enzymes ! crossword puzzle
Across
  1. a reaction that releases energy
  2. the reactants that an enzyme acts on
  3. a protein that speeds up chemical reactions
  4. energy,the amount of energy it takes to start a reaction
  5. the amount of energy available to do work
Down
  1. substances that are formed as an end product of a chemical reaction
  2. a type of energy that is stored
  3. a reaction that absorbs energy
  4. substances that participate in a chemical reaction
  5. a type of energy that is used
  6. the amount of disorder in a system

11 Clues: a type of energy that is used • a reaction that absorbs energy • a type of energy that is stored • a reaction that releases energy • the amount of disorder in a system • the reactants that an enzyme acts on • the amount of energy available to do work • a protein that speeds up chemical reactions • substances that participate in a chemical reaction • ...

Chapter 7 Vocabulary 2024-01-10

Chapter 7 Vocabulary crossword puzzle
Across
  1. the mass of one mole of any substance.
  2. a type of reaction in which multiple reactants combine to form a single product
  3. The substances which participate in a chemical reaction
  4. the act of reducing or the state of being reduced
  5. The unit of measurement in the International System of Units (SI) for amount of substance
  6. a reaction in which a compound breaks down into two or more simpler substances
  7. Shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow.
Down
  1. a reaction in which one element is substituted for another element in a compound.
  2. A constant term related to the properties of a product
  3. The processes by which chemicals interact to form new chemicals with different compositions
  4. A chemical substance formed as a result of a chemical reaction
  5. the addition of oxygen to the substance or the removal of hydrogen from the substance
  6. a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen

13 Clues: the mass of one mole of any substance. • the act of reducing or the state of being reduced • A constant term related to the properties of a product • The substances which participate in a chemical reaction • A chemical substance formed as a result of a chemical reaction • a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen • ...

Fun with science 2023-10-08

Fun with science crossword puzzle
Across
  1. Opening for gas exchange in plants
  2. A part of science that studies matter and reactions
  3. The amount of matter in an object
  4. Substances that are produced in a chemical reaction
  5. Pulmonary respiratory organs
  6. A process by which green plants produce food
  7. A gas that turns lime water turbid
  8. The amount of space an object occupies
  9. Opening to release carbon dioxide in fish
Down
  1. An opening for tracheal respiration
  2. A part of science that studies living things
  3. Inhalation and exhalation
  4. Non-chloropyllic organisms necessary for fermentation
  5. Substances that combine together in a chemical reaction
  6. Anything that has mass and occupies space
  7. A part of science that studies forces, speed and movement
  8. Reaction that releases heat
  9. Reaction that absorbs heat
  10. Covers the body and can be used for respiration in some animals
  11. A gas inhaled by living things

20 Clues: Inhalation and exhalation • Reaction that absorbs heat • Reaction that releases heat • Pulmonary respiratory organs • A gas inhaled by living things • The amount of matter in an object • Opening for gas exchange in plants • A gas that turns lime water turbid • An opening for tracheal respiration • The amount of space an object occupies • ...

Year 10 Science Revision 2025-09-18

Year 10 Science Revision crossword puzzle
Across
  1. substance made of one type of atom
  2. bond sharing of electrons between atoms
  3. energy stored energy
  4. observable characteristics of an organism
  5. selection process where better-adapted individuals survive
  6. table chart of all known elements
  7. thread-like structure of DNA
  8. genetic makeup of an organism
  9. different version of a gene
  10. force applied over a distance
  11. reaction releases energy
  12. bond transfer of electrons from one atom to another
  13. characteristic that increases survival
Down
  1. formation of a new species
  2. speed in a given direction
  3. change in velocity over time
  4. reaction absorbs energy
  5. change in DNA sequence
  6. carries genetic information in cells
  7. new substance formed in a chemical reaction
  8. energy energy of motion
  9. substance made of two or more elements chemically bonded
  10. starting substance in a chemical reaction
  11. segment of DNA that codes for a trait
  12. differences between individuals of a species

25 Clues: energy stored energy • change in DNA sequence • reaction absorbs energy • energy energy of motion • reaction releases energy • formation of a new species • speed in a given direction • different version of a gene • change in velocity over time • thread-like structure of DNA • genetic makeup of an organism • force applied over a distance • table chart of all known elements • ...

Energy Flow 2026-01-06

Energy Flow crossword puzzle
Across
  1. a release in energy
  2. substances that speed up reactions without being permanently altered
  3. breaking a bond requires energy to be
  4. mostly proteins that speed up biochemical reactions by lowering the activation energy
  5. requires consuming energy to do it
  6. break down larger molecules into simpler compounds
  7. metabolic reactions are controlled by
  8. substances that are made by a chemical reaction
  9. slows down reaction
Down
  1. enzyme's active site gets deformed and loses its specific shape
  2. substances that are changed during a chemical reaction
  3. all of the chemical reactions within each cell of an organism
  4. build larger molecules into simpler compounds
  5. substances that are changed during a chemical reaction
  6. forming a bond allows energy to be
  7. absorbs energy
  8. releases energy

17 Clues: absorbs energy • releases energy • a release in energy • slows down reaction • forming a bond allows energy to be • requires consuming energy to do it • breaking a bond requires energy to be • metabolic reactions are controlled by • build larger molecules into simpler compounds • substances that are made by a chemical reaction • ...

Chemistry Crossword 2017-11-16

Chemistry Crossword crossword puzzle
Across
  1. invisible negatively charged particle that orbits the nucleus of and atom
  2. chemical change that occurs when oxygen in the air reacts with a metal
  3. at table in which elements are organized by their physical and chemical properties
  4. chemical reaction that absorbs energy
  5. a pure substance formed when two non metals combine
  6. a pure substance formed when at least on metal and one non metal combine
  7. chemical reaction that releases energy
  8. metal the first column of the periodic table excluding hydrogen,that a really reactive in air and water
  9. workplace hazardous information material system
  10. can be stretched into wire
  11. substance that helps a chemical reaction proceed more quickly
  12. neutral particle in the nucleus of an atom
Down
  1. catalyst involved in chemical reactions in living things
  2. Irreversible change
  3. shininess of a metal
  4. the degree to which a specified material conducts electricity
  5. what everything is made up of
  6. Mass of Reactants= Mass of Products
  7. number of protons in the nucleus of one atom of an element
  8. group 18 in periodic table, they are the most stable and nonreactive elements. metalloid element that has both metallic and non metallic properties
  9. positively charged particle in the nucleus of an atom
  10. ability to pound and roll into flat sheets
  11. the mass of an element measured in amu
  12. horizontal row of elements in the periodic table

24 Clues: Irreversible change • shininess of a metal • can be stretched into wire • what everything is made up of • Mass of Reactants= Mass of Products • chemical reaction that absorbs energy • chemical reaction that releases energy • the mass of an element measured in amu • ...

Chemical Reactions 2017-03-16

Chemical Reactions crossword puzzle
Across
  1. Another name for Iron Oxide
  2. What is made when you add oxygen to something
  3. The name of the chemicals to the right hand side of a word equation
  4. A chemical with the symbols of CaCO3
  5. A type of reaction that is not reversible
  6. A type of reaction involving adding oxygen. Also called combustion.
  7. A reaction that joins chemicals together
Down
  1. A reaction that gives out heat
  2. A reaction that is reversible
  3. A reaction the breaks chemicals down using heat
  4. A reaction that takes in heat
  5. The mass of reactants and products is always equal. ________ of mass.
  6. A sign that gas is given off in an experiment
  7. The name of the chemicals to the left hand side of a word equation

14 Clues: Another name for Iron Oxide • A reaction that is reversible • A reaction that takes in heat • A reaction that gives out heat • A chemical with the symbols of CaCO3 • A reaction that joins chemicals together • A type of reaction that is not reversible • What is made when you add oxygen to something • A sign that gas is given off in an experiment • ...

Changes in Matter 2025-04-24

Changes in Matter crossword puzzle
Across
  1. absorb heat energy from surroundings
  2. substance that can't be broken
  3. present at reaction start
  4. amount of matter in object
  5. thermal energy transferred between two systems
  6. stuff
  7. the attraction of molecules of the same kind
  8. something that is formed after chemical reaction
Down
  1. a group of atoms
  2. a physical combination of substances
  3. the degree of hotness and coldness
  4. the amount of space something takes up
  5. building block for all matter
  6. substance that speeds up chemical reaction
  7. release energy from chemicals into surroundings
  8. the study of matter
  9. force that holds atoms together
  10. substance formed when elements combine

18 Clues: stuff • a group of atoms • the study of matter • present at reaction start • amount of matter in object • building block for all matter • substance that can't be broken • force that holds atoms together • the degree of hotness and coldness • absorb heat energy from surroundings • a physical combination of substances • the amount of space something takes up • ...

photosynthesis and respiration 2019-11-25

photosynthesis and respiration crossword puzzle
Across
  1. inside the chloroplast
  2. organic synthesis industry
  3. break down my glucose
  4. place in a thykliod
  5. converting ADP to ATP
  6. to make energy into chemical energy
  7. free oxygen
  8. chemical breakdown for substances
  9. action of breathing
Down
  1. drinking of an alcohol
  2. of protons across the membrane
  3. supportive tissue
  4. a green plant cell
  5. reaction of a substrate
  6. a powerhouse of the cell
  7. O2
  8. CO2
  9. need oxygen
  10. simple sugar
  11. H2O

20 Clues: O2 • CO2 • H2O • need oxygen • free oxygen • simple sugar • supportive tissue • a green plant cell • place in a thykliod • action of breathing • break down my glucose • converting ADP to ATP • drinking of an alcohol • inside the chloroplast • reaction of a substrate • a powerhouse of the cell • organic synthesis industry • of protons across the membrane • chemical breakdown for substances • ...

Paxton M crossword puzzle. 2024-05-15

Paxton M crossword puzzle. crossword puzzle
Across
  1. When two or more elements combined its forms ___
  2. Two or atoms bonded together from a _____
  3. The average kinetic energy in an collection of atoms is called its ____
  4. Substance that cant be broken down further chemically are ___
  5. A reaction that absorbs heat is a _______ reaction
  6. when substance interact with each other and form new substance its a ____
  7. The amount of matter in something is its _____
Down
  1. Amount of space something takes up is its ____
  2. when the same substance are attracted to each other its because of ____
  3. The result of mixing reactants is the _____
  4. A reaction that release heat is a ________ reaction
  5. The smallest form of matter is an _____
  6. The study of elements and how they interact with each other is ____
  7. A mix of substance can be separated physically is a ____
  8. Anything that has mass and takes up space is ___
  9. the ability to do work of cause change is called _____
  10. Substance that are used in a chemical reaction are called ____
  11. You use a _____ that speeds up a chemical reaction

18 Clues: The smallest form of matter is an _____ • Two or atoms bonded together from a _____ • The result of mixing reactants is the _____ • Amount of space something takes up is its ____ • The amount of matter in something is its _____ • When two or more elements combined its forms ___ • Anything that has mass and takes up space is ___ • ...

Photocatalytic activity of cerium dioxide nanoparticles 2022-03-15

Photocatalytic activity of cerium dioxide nanoparticles crossword puzzle
Across
  1. A small tube-like container designed to hold samples for spectroscopic measurements
  2. The acceleration of a photoreaction in the presence of a catalyst
  3. The chemical process of simplifying a chemical object into two or more fragments
  4. A unit of length in the metric system equal to one billionth of a metre
  5. The colored substance that chemically bonds to the substrate to which it is being applied
  6. A form of electromagnetic radiation with wavelength from 10 to 400 nm, shorter than that of visible light, but longer than X-rays
  7. The chemical element with 58 protons in its nucleus
  8. A material which electrical conductivity value falling between that of a conductor and an insulator
  9. A chemical substance which speeds up a chemical reaction without consuming in it
  10. Materials of which a single unit small sized (in at least one dimension) between 1 and 100 nm
  11. A chemical substance which slows down a chemical reaction without consuming in it
Down
  1. The process of increasing the rate of a chemical reaction by adding a special substance
  2. A branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength
  3. The class of substances to which cerium belongs
  4. The degree to which a chemical substance can damage an organism
  5. A property that describes a material’s ability to absorb the power of a given light that is passed through that material (Optical '...')
  6. The property of aqueous solution which can be specified by the pH scale
  7. The property of electromagnetic radiation which describes how matter takes up a photon's energy
  8. An atom or a molecule with a positive electrical charge
  9. An atom or a molecule with a negative electrical charge

20 Clues: The class of substances to which cerium belongs • The chemical element with 58 protons in its nucleus • An atom or a molecule with a positive electrical charge • An atom or a molecule with a negative electrical charge • The degree to which a chemical substance can damage an organism • The acceleration of a photoreaction in the presence of a catalyst • ...

Photocatalytic activity of cerium dioxide nanoparticles 2022-03-15

Photocatalytic activity of cerium dioxide nanoparticles crossword puzzle
Across
  1. A small tube-like container designed to hold samples for spectroscopic measurements
  2. The acceleration of a photoreaction in the presence of a catalyst
  3. The chemical process of simplifying a chemical object into two or more fragments
  4. A unit of length in the metric system equal to one billionth of a metre
  5. The colored substance that chemically bonds to the substrate to which it is being applied
  6. A form of electromagnetic radiation with wavelength from 10 to 400 nm, shorter than that of visible light, but longer than X-rays
  7. The chemical element with 58 protons in its nucleus
  8. A material which electrical conductivity value falling between that of a conductor and an insulator
  9. A chemical substance which speeds up a chemical reaction without consuming in it
  10. Materials of which a single unit small sized (in at least one dimension) between 1 and 100 nm
  11. A chemical substance which slows down a chemical reaction without consuming in it
Down
  1. The process of increasing the rate of a chemical reaction by adding a special substance
  2. A branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength
  3. The class of substances to which cerium belongs
  4. The degree to which a chemical substance can damage an organism
  5. A property that describes a material’s ability to absorb the power of a given light that is passed through that material (Optical '...')
  6. The property of aqueous solution which can be specified by the pH scale
  7. The property of electromagnetic radiation which describes how matter takes up a photon's energy
  8. An atom or a molecule with a positive electrical charge
  9. An atom or a molecule with a negative electrical charge

20 Clues: The class of substances to which cerium belongs • The chemical element with 58 protons in its nucleus • An atom or a molecule with a positive electrical charge • An atom or a molecule with a negative electrical charge • The degree to which a chemical substance can damage an organism • The acceleration of a photoreaction in the presence of a catalyst • ...

DanielA 9L Crossword 2017-11-14

DanielA 9L Crossword crossword puzzle
Across
  1. positively charged particle in the nucleus of an atom
  2. number of protons in the nucleus of one atom of an element
  3. can be stretched into wire
  4. shininess of a metal
  5. ability to pound and roll into flat sheets
  6. group 18 in periodic table, they are the most stable and nonreactive elements.
  7. horizontal row of elements in the periodic table
  8. Mass of Reactants= Mass of Products
  9. chemical change that occurs when oxygen in the air reacts with a metal
  10. substance that helps a chemical reaction proceed more quickly
  11. at table in which elements are organized by their physical and chemical properties
  12. a pure substance formed when two non metals combine
  13. what everything is made of
  14. workplace hazardous information material system
Down
  1. invisible negatively charged particle that orbits the nucleus of and atom
  2. chemical reaction that absorbs energy
  3. Irreversible change
  4. element that has both metallic and non metallic properties
  5. chemical reaction that releases energy
  6. the degree to which a specified material conducts electricity
  7. metal the first column of the periodic table excluding hydrogen,that a really reactive in air and water
  8. a pure substance formed when at least on metal and one non metal combine
  9. catalyst involved in chemical reactions in living things
  10. neutral particle in the nucleus of an atom
  11. the mass of an element measured in amu

25 Clues: Irreversible change • shininess of a metal • can be stretched into wire • what everything is made of • Mass of Reactants= Mass of Products • chemical reaction that absorbs energy • chemical reaction that releases energy • the mass of an element measured in amu • ability to pound and roll into flat sheets • neutral particle in the nucleus of an atom • ...

Unit 2 - Biochemistry Vocabulary 2023-09-22

Unit 2 - Biochemistry Vocabulary crossword puzzle
Across
  1. large molecule made up of repeating units of sugar molecules
  2. simplest form of a sugar; base unit of a carbohydrate
  3. substance made up of two or more different elements chemically bonded together
  4. material made of two or more different chemical substances which are not chemically bonded
  5. substance capable of dissolving other substances
  6. action or property of two different surfaces sticking together
  7. group of atoms chemically bonded together
  8. chemical substance that can't be broken down into other substances
  9. substance formed from a chemical reaction
  10. small molecule that can bond to form a polymer
  11. substance that is dissolved in a solvent to form a solution
  12. homogeneous mixture of two or more substances
Down
  1. heterogeneous mixture of fluid that contains solid particles that can form sediment
  2. variant of a chemical element that have the same number of protons but different number of neutrons
  3. substance or compound that can cause a chemical reaction
  4. large molecules made of repeating subunits called polymers
  5. substance that causes or accelerates a chemical reaction
  6. biological catalyst; speed up reactions
  7. action or property of like molecules sticking together
  8. substance that helps maintain the pH
  9. atom or molecule with a net electrical charge
  10. basic unit of matter
  11. force of attraction between atoms that holds them together in a molecule or compound
  12. molecule upon which an enzyme acts

24 Clues: basic unit of matter • molecule upon which an enzyme acts • substance that helps maintain the pH • biological catalyst; speed up reactions • group of atoms chemically bonded together • substance formed from a chemical reaction • atom or molecule with a net electrical charge • homogeneous mixture of two or more substances • small molecule that can bond to form a polymer • ...

Bioenergetics Revision 2025-12-11

Bioenergetics Revision crossword puzzle
Across
  1. a product of respiration needed for active transport
  2. The amount of oxygen needed to break down lactic acid
  3. The sugar required for respiration
  4. The green pigment that absorbs sunlight in plant cells
  5. The type of respiration requiring oxygen
  6. This is released in respiration
  7. The product of anaerobic respiration in animals
  8. The type of chemical reaction that releases energy to the surroudings
Down
  1. The sum of all chemical reactions in a cell
  2. The chemical reaction that makes food for plants sing light
  3. The organ where lactic acid is metabolised
  4. The transport method used in leaves to get carbon dioxide into the plant
  5. The gas product of anaerobic respiration in plants and yeast
  6. The alcohol produced in anaerobic respiration in plants and yeast
  7. The gaseous reactant i aerobic respiration
  8. The resource or condition that prevents the rate of reaction increasing
  9. The product of amino acid break down in the liver that is excreted in the urine
  10. The type of respiration that does not require oxygen
  11. The type of reaction that takes energy in from the surroundings

19 Clues: This is released in respiration • The sugar required for respiration • The type of respiration requiring oxygen • The organ where lactic acid is metabolised • The gaseous reactant i aerobic respiration • The sum of all chemical reactions in a cell • The product of anaerobic respiration in animals • a product of respiration needed for active transport • ...

Chemis-Tree Holiday Crossword 2025-12-05

Chemis-Tree Holiday Crossword crossword puzzle
Across
  1. – A small number that shows how many atoms are in a molecule.
  2. Equation – A chemical equation with the same number of atoms on both sides.
  3. – A solid that forms and sinks during a chemical reaction.
  4. Formula – A shorthand way to show what elements and how many atoms are in a substance.
  5. – When two substances combine to make one new product.
  6. – The substances made after a reaction happens.
  7. Replacement – One element switches places with another in a compound.
Down
  1. – A reaction that needs oxygen and usually produces fire.
  2. – The starting materials in a chemical reaction.
  3. – A big number in front of a chemical formula that tells how many.
  4. – When one substance breaks apart into simpler pieces.
  5. Replacement – Two compounds swap partners.

12 Clues: Replacement – Two compounds swap partners. • – The substances made after a reaction happens. • – The starting materials in a chemical reaction. • – When one substance breaks apart into simpler pieces. • – When two substances combine to make one new product. • – A reaction that needs oxygen and usually produces fire. • ...

Chemical Reactions 2023-10-30

Chemical Reactions crossword puzzle
Across
  1. According to the Collision Theory, molecules must ________ in order for a chemical reaction to occur.
  2. In this type of reaction, energy is being released in the surrounding
  3. During a chemical reaction, _______ are broken and reformed to produce new substance.
  4. In this type of reaction, the energy supplied is greater than the energy released
  5. __________ energy is the energy required to break the bonds in the reactants.
  6. There is a/an _______ in temperature observed in an endothermic reaction.
Down
  1. New substance formed in a chemical reaction
  2. A substance that can help speed up a reaction.
  3. In an exothermic reaction, the energy of the products is _______ than the energy of the reactants.
  4. The starting materials in a chemical reaction

10 Clues: New substance formed in a chemical reaction • The starting materials in a chemical reaction • A substance that can help speed up a reaction. • In this type of reaction, energy is being released in the surrounding • There is a/an _______ in temperature observed in an endothermic reaction. • ...

Paxton M crossword puzzle. 2024-05-15

Paxton M crossword puzzle. crossword puzzle
Across
  1. When two or more elements combined its forms ___
  2. Two or atoms bonded together from a _____
  3. The average kinetic energy in an collection of atoms is called its ____
  4. Substance that cant be broken down further chemically are ___
  5. A reaction that absorbs heat is a _______ reaction
  6. when substance interact with each other and form new substance its a ____
  7. The amount of matter in something is its _____
Down
  1. Amount of space something takes up is its ____
  2. when the same substance are attracted to each other its because of ____
  3. The result of mixing reactants is the _____
  4. A reaction that release heat is a ________ reaction
  5. The smallest form of matter is an _____
  6. The study of elements and how they interact with each other is ____
  7. A mix of substance can be separated physically is a ____
  8. Anything that has mass and takes up space is ___
  9. the ability to do work of cause change is called _____
  10. Substance that are used in a chemical reaction are called ____
  11. You use a _____ that speeds up a chemical reaction

18 Clues: The smallest form of matter is an _____ • Two or atoms bonded together from a _____ • The result of mixing reactants is the _____ • Amount of space something takes up is its ____ • The amount of matter in something is its _____ • When two or more elements combined its forms ___ • Anything that has mass and takes up space is ___ • ...

Topic 9 Vocabulary: Redox! 2024-03-05

Topic 9 Vocabulary: Redox! crossword puzzle
Across
  1. the loss of electrons and an increase in oxidation state
  2. the site in an electrochemical cell where reduction occurs
  3. a cell that requires electricity to cause a nonspontaneous chemical reaction to occur
  4. an oxidation-reduction reaction
  5. the site in an electrochemical cell where oxidation occurs
  6. a system in which there is an electric current flowing while a chemical reaction occurs
Down
  1. a part of a voltaic cell that connects two containers and allows the flow of ions
  2. an electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
  3. the gain of electrons and the loss of oxidation number
  4. a process in which an electric current forces a nonspontaneous redox reaction to occur
  5. number assigned to keep track of electron gain or loss in redox reactions
  6. a reaction that shows either the oxidation or reduction portion of a redox reaction
  7. the site at which oxidation or reduction occurs; an anode or a cathode

13 Clues: an oxidation-reduction reaction • the gain of electrons and the loss of oxidation number • the loss of electrons and an increase in oxidation state • the site in an electrochemical cell where reduction occurs • the site in an electrochemical cell where oxidation occurs • the site at which oxidation or reduction occurs; an anode or a cathode • ...

Science CrossWord 2025-10-17

Science CrossWord crossword puzzle
Across
  1. How we measure temperature
  2. Releases energy to the surroundings
  3. Atoms of the same type
  4. The symbol we use to show a reaction is taking place
  5. Particles in a fixed orderly arrangement
  6. What is reacted together in a chemical reaction
  7. Particles far apart moving randomly in all directions
  8. Takes in energy to the surroundings
  9. Particles close together but can flow
  10. What joins atoms together
Down
  1. When a new substance is formed
  2. Breaking down with heat
  3. On the left hand side of the periodic table
  4. What is produced in a chemical reaction
  5. More that one element chemically bonded

15 Clues: Atoms of the same type • Breaking down with heat • What joins atoms together • How we measure temperature • When a new substance is formed • Releases energy to the surroundings • Takes in energy to the surroundings • Particles close together but can flow • What is produced in a chemical reaction • More that one element chemically bonded • ...

Unit 6 Vocab Chemistry 2022-03-18

Unit 6 Vocab Chemistry crossword puzzle
Across
  1. the species formed from chemical reactions
  2. the process or effect of simplifying a single chemical entity into two or more fragments
  3. A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
  4. the process where a solute in gaseous, liquid, or solid phase dissolves in a solvent to form a solution
Down
  1. a chemical process involving the exchange of bonds between two reacting chemical species which results in the creation of products with similar or identical bonding affiliations
  2. a chemical reaction in which one element is replaced by another in a compound
  3. states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations
  4. the symbolic representation of a chemical reaction in the form of symbols and formula
  5. a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame
  6. a substance that takes part in and undergoes change during a reaction
  7. the process of transforming a dissolved substance into an insoluble solid from a supersaturated solution
  8. the artificial execution of chemical reactions to obtain one or several products

12 Clues: the species formed from chemical reactions • a substance that takes part in and undergoes change during a reaction • a chemical reaction in which one element is replaced by another in a compound • the artificial execution of chemical reactions to obtain one or several products • ...

Displacement and reactivity 2025-12-17

Displacement and reactivity crossword puzzle
Across
  1. Process to change a solid into a liquid
  2. Metal often used in tinsel that is shiny and doesn’t react easily
  3. Salt formed in a displacement reaction between iron and copper sulfate.
  4. Chemical symbol for silver.
  5. A reaction that gives out energy to the surroundings.
  6. Metal used in Christmas tree light wires.
  7. Process to change an gas into a liquid
  8. Process to change a liquid into a solid
  9. The process where a more reactive metal takes the place of a less reactive metal.
  10. The series ranking metals from most to least reactive.
Down
  1. Metal higher than copper but lower than sodium.
  2. Santa’s sleigh metal must be strong and light, often used in alloys.
  3. Process to change a liquid into a gas.
  4. Example of a reaction that feels hot to touch, e.g., burning Christmas candles.
  5. Metal in Christmas bells that can be displaced by iron.
  6. A gas that makes balloons float in Christmas parties.
  7. A reaction that absorbs energy from the surroundings.
  8. Chemical symbol for zinc.
  9. The least reactive metal in the reactivity series.
  10. A sweet chemical compound made of carbon, hydrogen, and oxygen, used in Christmas treats.
  11. Metal more reactive than copper but less reactive than magnesium.

21 Clues: Chemical symbol for zinc. • Chemical symbol for silver. • Process to change a liquid into a gas. • Process to change an gas into a liquid • Process to change a solid into a liquid • Process to change a liquid into a solid • Metal used in Christmas tree light wires. • Metal higher than copper but lower than sodium. • The least reactive metal in the reactivity series. • ...

Ryans Matter crossword puzzle 2024-05-15

Ryans Matter crossword puzzle crossword puzzle
Across
  1. Two substances combining
  2. An action taken in response of something
  3. The characteristic observed during a chemical reaction
  4. the study of matter
  5. smallest unit of element
  6. when two or more substances are combined
  7. releases heat
  8. two or more atoms bonded together
Down
  1. two substances formed during a chemical reaction
  2. mass+volume=
  3. The ability to do work or cause change
  4. Takes up space
  5. the transfer of thermal energy
  6. Molecules the same stick together
  7. A __ property is characteristic that can be observed
  8. absorbs heat
  9. the amount of matter in a object
  10. a pure substance that cant be broken

18 Clues: mass+volume= • absorbs heat • releases heat • Takes up space • the study of matter • Two substances combining • smallest unit of element • the transfer of thermal energy • the amount of matter in a object • Molecules the same stick together • two or more atoms bonded together • a pure substance that cant be broken • The ability to do work or cause change • ...

Tkai 2022-03-08

Tkai crossword puzzle
Across
  1. from a reaction, you must first
  2. and products can represent # of
  3. You can use the coefficients in a
  4. mole to mass
  5. with a balanced equation!
  6. chemical equation to write
  7. the amount of reactants used and the
  8. Remember that the coefficients of
  9. ratios.
Down
  1. determining the number of moles
  2. the maximum of product that could be producd based on the limiting reaction
  3. mass of 1 mole of a substance
  4. of products formed.
  5. Calculations
  6. the substance the will used up first in a chemical reaction
  7. Stoichiometry is the quantitative relationship
  8. as well as the # of moles that

17 Clues: ratios. • Calculations • mole to mass • of products formed. • with a balanced equation! • chemical equation to write • mass of 1 mole of a substance • as well as the # of moles that • determining the number of moles • from a reaction, you must first • and products can represent # of • You can use the coefficients in a • Remember that the coefficients of • ...

Unit 7: Stoichiometry 2023-02-27

Unit 7: Stoichiometry crossword puzzle
Across
  1. Has a molar mass of 18 g/mol
  2. Another name for gram formula mass; atomic mass
  3. chemical change; creating something new.
  4. combination reaction
  5. Formula:(part/whole)x100
  6. formula with the lowest whole-number ratio of elements in a compound
  7. comparison between two numbers
  8. chemical reaction that involves a carbon compound and oxygen to produce carbon dioxide and water.
Down
  1. one reactant forms two or more products
  2. the mass of the reactants must be the same as the mass of the products.
  3. formula that specifies the exact amount of each element in a compound
  4. Ratio between the numbers of moles of any two of the substances in a balanced chemical equation.
  5. The starting substance in a chemical reaction
  6. the study of quantitative aspects of chemical reactions.

14 Clues: combination reaction • Formula:(part/whole)x100 • Has a molar mass of 18 g/mol • comparison between two numbers • one reactant forms two or more products • chemical change; creating something new. • The starting substance in a chemical reaction • Another name for gram formula mass; atomic mass • the study of quantitative aspects of chemical reactions. • ...

HSC CHEMISTRY 2013-09-17

HSC CHEMISTRY crossword puzzle
Across
  1. Theory that acids are substances that release hydrogen ions in aqueous solution.
  2. The clarity of a sample of water.
  3. Process where enzymes convert glucose into ethanol and carbon dioxide.
  4. Species that loses electrons in a redox reaction.
  5. Any liquid where ions are free to move.
  6. Reaction between an acid and a base.
  7. Principle related to the response of a closed system under stress.
  8. Type of polymer where a small molecule is removed when monomers react.
  9. Type of covalent bond where one atom donates both electrons.
Down
  1. Solution that resists a change in pH.
  2. Type of analysis where the amount of a substance is determined.
  3. Process that uses a vertical condenser during the production of an ester.
  4. Type of spectroscopy.
  5. Process whereby water ways are enriched with nutrients.
  6. Bonds between molecules of ethanol.
  7. Process where light causes a chemical reaction.
  8. Reaction where overall heat energy is released.
  9. A substance that speeds up a chemical reaction and is present at the end of the reaction.
  10. Polymer used to make coffee cups.
  11. Metal that is more reactive and used to protect less reactive metal.
  12. Process that used electrical energy to force a chemical change to occur.
  13. Elements beyond uranium in the Periodic Table.
  14. Substance used to detect if a solution is acidic, basic or neutral.
  15. Type of filter used in some water treatment plants.
  16. Pair of species that differ by a proton.

25 Clues: Type of spectroscopy. • The clarity of a sample of water. • Polymer used to make coffee cups. • Bonds between molecules of ethanol. • Reaction between an acid and a base. • Solution that resists a change in pH. • Any liquid where ions are free to move. • Pair of species that differ by a proton. • Elements beyond uranium in the Periodic Table. • ...

Thermochemistry 2014-12-10

Thermochemistry crossword puzzle
Across
  1. the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
  2. an apparatus for measuring the amount of heat involved in a chemical reaction
  3. the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure
  4. the energy needed to raise the temperature of 1 gram of water through 1°C
  5. the change in the enthalpy of a chemical reaction that occurs at a constant pressure
  6. the degree or intensity of heat present in a substance or object
  7. the enthalpy change which occurs when one mole of the compound is burned completely in oxygen under standard conditions, and with everything in its standard state
  8. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions
  9. power derived from the utilization of physical or chemical resources
  10. a form of potential energy that can be absorbed or released during a chemical reaction
  11. a reaction that absorbs heat
Down
  1. the amount of heat required to melt one mole of a solid at its melting point with no change in temperature
  2. energy can be neither created nor destroyed, but can change form
  3. a thermodynamic quantity equivalent to the total heat content of a system
  4. the heat required to raise the temperature of the unit mass of a given substance by a given amount
  5. the SI unit of work or energy
  6. a form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction, convection, or radiation
  7. an apparatus for measuring the amount of heat involved in a chemical reaction
  8. a reaction that releases heat
  9. energy that a body possesses by virtue of being in motion

20 Clues: a reaction that absorbs heat • the SI unit of work or energy • a reaction that releases heat • energy that a body possesses by virtue of being in motion • energy can be neither created nor destroyed, but can change form • the degree or intensity of heat present in a substance or object • power derived from the utilization of physical or chemical resources • ...

Vocab Quiz 2012-10-14

Vocab Quiz crossword puzzle
Across
  1. A nonprotein substance that usually contains a vitamin or mineral and combines with a specific protein, to form an active enzyme system.
  2. An organic or inorganic substance required for the function of an enzyme
  3. All chemical and physical processes in an organism
  4. series of chemical reactions occurring within a cell
  5. binding of a molecule to the active site on the enzyme prevents binding of the substrate
  6. The energy that exists in a body as a result of its position or condition rather than of its motion.
  7. A chemical reaction in which the standard change in free energy is positive, and energy is absorbed.
  8. The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed
  9. When one reaction is fueled by the energy from a previous reaction
  10. The science concerned with the relationship between mechanical and thermal energy
Down
  1. involving a change in the shape and activity of an enzyme that results from molecular binding with a regulatory substance at a site other than the enzymatically active one.
  2. A phenomenon displayed by enzymes or receptors that have multiple binding sites. Binding of one ligand alters the affinity of the other site.
  3. A molecule reduces the activity of the enzyme and binds equally well to the enzyme whether or not it has already bound the substrate
  4. A chemical reaction where the change in the Gibbs free energy is negative,[1] indicating a spontaneous reaction.
  5. A blocking of activity due to the production of an end product of the action.
  6. that part of the energy in a substance that can be released by a chemical reaction
  7. the portion of total energy of a natural system that can be used for work.
  8. the part of the total internal energy of a thermodynamic system or sample of matter that results in the system temperature.
  9. The major energy source for all bodily functions.

19 Clues: The major energy source for all bodily functions. • All chemical and physical processes in an organism • series of chemical reactions occurring within a cell • When one reaction is fueled by the energy from a previous reaction • An organic or inorganic substance required for the function of an enzyme • ...

Vocab Quiz 2012-10-14

Vocab Quiz crossword puzzle
Across
  1. When one reaction is fueled by the energy from a previous reaction
  2. A nonprotein substance that usually contains a vitamin or mineral and combines with a specific protein, to form an active enzyme system.
  3. A chemical reaction where the change in the Gibbs free energy is negative,[1] indicating a spontaneous reaction.
  4. A chemical reaction in which the standard change in free energy is positive, and energy is absorbed.
  5. A blocking of activity due to the production of an end product of the action.
  6. The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed
  7. A phenomenon displayed by enzymes or receptors that have multiple binding sites. Binding of one ligand alters the affinity of the other site.
  8. binding of a molecule to the active site on the enzyme prevents binding of the substrate
  9. involving a change in the shape and activity of an enzyme that results from molecular binding with a regulatory substance at a site other than the enzymatically active one.
Down
  1. that part of the energy in a substance that can be released by a chemical reaction
  2. The science concerned with the relationship between mechanical and thermal energy
  3. the part of the total internal energy of a thermodynamic system or sample of matter that results in the system temperature.
  4. series of chemical reactions occurring within a cell
  5. A molecule reduces the activity of the enzyme and binds equally well to the enzyme whether or not it has already bound the substrate
  6. The energy that exists in a body as a result of its position or condition rather than of its motion.
  7. An organic or inorganic substance required for the function of an enzyme
  8. All chemical and physical processes in an organism
  9. the portion of total energy of a natural system that can be used for work.
  10. The major energy source for all bodily functions.

19 Clues: The major energy source for all bodily functions. • All chemical and physical processes in an organism • series of chemical reactions occurring within a cell • When one reaction is fueled by the energy from a previous reaction • An organic or inorganic substance required for the function of an enzyme • ...

Name: ________________ 2023-08-23

Name: ________________ crossword puzzle
Across
  1. State of matter with fixed volume and shape
  2. Chemical formula for table salt
  3. Word for a mixture that is not uniform
  4. Word for substance or chemical that is formed in a chemical reaction
  5. Temperature scale where water boils at 100 degrees
  6. Theory used to described the very small: ____ mechanics
  7. Word for substance or chemical that is used up in a chemical reaction
  8. State of matter with fixed volume but not fixed shape
Down
  1. Number for neutral pH
  2. Word used for an Avogadro's (very large) number of particles
  3. Energy due to motion
  4. Subatomic particle without a charge
  5. Word for a uniform mixture
  6. State of matter without fixed volume or shape
  7. Positively charged subatomic particle
  8. Scale for determining the acidity or basicity of a solution
  9. Term for the center of the atom
  10. Energy due to position
  11. Negatively charged subatomic particle

19 Clues: Energy due to motion • Number for neutral pH • Energy due to position • Word for a uniform mixture • Chemical formula for table salt • Term for the center of the atom • Subatomic particle without a charge • Positively charged subatomic particle • Negatively charged subatomic particle • Word for a mixture that is not uniform • State of matter with fixed volume and shape • ...

Chapter 12: Chemistry Crossword 2014-08-20

Chapter 12: Chemistry Crossword crossword puzzle
Across
  1. sweet, colorless, oily substance used as a solvent & moisturizer in skin & body creams
  2. change in the form or physical properties of a substance without the formation of a new substance
  3. water droplets emulsified in oil
  4. oil loving
  5. a colorless gas with a pungent odor. Composed of hydrogen & nitrogen
  6. the chemical reaction in which either oxygen is subtracted from, or hydrogen is added to, a substance
  7. chemical combination of matter in definite proportions
  8. the simplest form of matter; it cannot be broken down into a simpler substance without the loss of its identity
  9. characteristics that can only be determines by a chemical reaction and a chemical change in the substance
  10. chemical reactions that produce heat
  11. solutions that have a pH above 7.0, & turn litmus paper from red to blue
  12. a stable mixture of two or more mixable substances
  13. study of substances that contain carbon
  14. an ion with a negative electrical charge
  15. chemistry study of substances that do not contain carbon
  16. to subtract oxygen from or add hydrogen to a substance
  17. a chemical combination of atoms of the same element
  18. solutions that have a pH below 7.0, & turn litmus paper from blue to red
  19. surface active agents; substances that act as a bridge to allow oil & water to mix/emulsify
  20. substance that is dissolved in a solution
  21. measures the acidity & alkalinity of a substance
Down
  1. special type of oil used in hair conditioners & as water-resistant lubricants for the skin
  2. a substance that releases oxygen
  3. an unstable mixture of undissolved particles in a liquid
  4. substances containing carbon that evaporate quickly & easily
  5. change a change in the chemical & physical properties of a substance due to a chemical reaction that creates a new substance or substances
  6. an unstable mixture of two or more immiscible substances with the aid of an emulsifier
  7. oil droplets emulsified in water
  8. rapid oxidation of a substance, accompanied by the production of heat & light
  9. the science that deals with the composition, structure, & properties of matter, & how matter changes under various conditions
  10. smallest particle of an element that still retains the properties of that element
  11. a chemical combination of two or more atoms
  12. substance that dissolves the solute to form a solution
  13. combinations of two or more atoms of different elements chemically joined together
  14. separation of an atom or molecule into positive & negative ions
  15. substances used to neutralize acids or raise the pH of many hair products
  16. characteristics that can be determined without a chemical reaction & that do not cause a chemical change in the substance
  17. contraction for reduction-oxidation; chemical reaction in which the oxidizing agent is reduced & the reducing agent is oxidized
  18. a chemical reaction that combines a substance with oxygen to produce an oxide
  19. multiples of ten
  20. not capable of being mixed
  21. easily evaporating
  22. an atom or molecule that carries an electrical charge
  23. physical combination of matter, in any proportion
  24. water loving
  25. an ion with a positive electrical charge
  26. capable of being mixed with another liquid in any proportion without separating
  27. any substance that occupies space & has a mass (weight)

48 Clues: oil loving • water loving • multiples of ten • easily evaporating • not capable of being mixed • a substance that releases oxygen • oil droplets emulsified in water • water droplets emulsified in oil • chemical reactions that produce heat • study of substances that contain carbon • an ion with a negative electrical charge • an ion with a positive electrical charge • ...

Photocatalytic activity of cerium dioxide nanoparticles 2022-03-15

Photocatalytic activity of cerium dioxide nanoparticles crossword puzzle
Across
  1. A small tube-like container designed to hold samples for spectroscopic measurements
  2. The acceleration of a photoreaction in the presence of a catalyst
  3. The chemical process of simplifying a chemical object into two or more fragments
  4. A unit of length in the metric system equal to one billionth of a metre
  5. The colored substance that chemically bonds to the substrate to which it is being applied
  6. A form of electromagnetic radiation with wavelength from 10 to 400 nm, shorter than that of visible light, but longer than X-rays
  7. The chemical element with 58 protons in its nucleus
  8. A material which electrical conductivity value falling between that of a conductor and an insulator
  9. A chemical substance which speeds up a chemical reaction without consuming in it
  10. Materials of which a single unit small sized (in at least one dimension) between 1 and 100 nm
  11. A chemical substance which slows down a chemical reaction without consuming in it
Down
  1. The process of increasing the rate of a chemical reaction by adding a special substance
  2. A branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength
  3. The class of substances to which cerium belongs
  4. The degree to which a chemical substance can damage an organism
  5. A property that describes a material’s ability to absorb the power of a given light that is passed through that material (Optical '...')
  6. The property of aqueous solution which can be specified by the pH scale
  7. The property of electromagnetic radiation which describes how matter takes up a photon's energy
  8. An atom or a molecule with a positive electrical charge
  9. An atom or a molecule with a negative electrical charge

20 Clues: The class of substances to which cerium belongs • The chemical element with 58 protons in its nucleus • An atom or a molecule with a positive electrical charge • An atom or a molecule with a negative electrical charge • The degree to which a chemical substance can damage an organism • The acceleration of a photoreaction in the presence of a catalyst • ...

Chemical reactions 2022-05-06

Chemical reactions crossword puzzle
Across
  1. the amount of particles in a certain volume
  2. this is used to measure volume of gas
  3. what does the arrow in a word equation mean?
  4. the substances made in a chemical reaction
  5. heat is a form of this
  6. this can change in some chemical reactions
  7. speeds up a reaction but is not used up
  8. seen as bubbles/ fizzing during a reaction
Down
  1. what particles must do to react
  2. this is measured using a thermometer
  3. the starting substances in a reaction
  4. scientific term for burning
  5. solid formed from two liquids
  6. what all substances are made up of
  7. a form of energy you can see in a reaction

15 Clues: heat is a form of this • scientific term for burning • solid formed from two liquids • what particles must do to react • what all substances are made up of • this is measured using a thermometer • the starting substances in a reaction • this is used to measure volume of gas • speeds up a reaction but is not used up • the substances made in a chemical reaction • ...

Vocab Quiz 2012-10-14

Vocab Quiz crossword puzzle
Across
  1. The science concerned with the relationship between mechanical and thermal energy
  2. A phenomenon displayed by enzymes or receptors that have multiple binding sites. Binding of one ligand alters the affinity of the other site.
  3. The energy that exists in a body as a result of its position or condition rather than of its motion.
  4. A molecule reduces the activity of the enzyme and binds equally well to the enzyme whether or not it has already bound the substrate
  5. All chemical and physical processes in an organism
  6. An organic or inorganic substance required for the function of an enzyme
  7. A nonprotein substance that usually contains a vitamin or mineral and combines with a specific protein, to form an active enzyme system.
  8. the portion of total energy of a natural system that can be used for work.
Down
  1. When one reaction is fueled by the energy from a previous reaction
  2. involving a change in the shape and activity of an enzyme that results from molecular binding with a regulatory substance at a site other than the enzymatically active one.
  3. that part of the energy in a substance that can be released by a chemical reaction
  4. A chemical reaction where the change in the Gibbs free energy is negative,[1] indicating a spontaneous reaction.
  5. The major energy source for all bodily functions.
  6. A blocking of activity due to the production of an end product of the action.
  7. The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed
  8. binding of a molecule to the active site on the enzyme prevents binding of the substrate
  9. series of chemical reactions occurring within a cell
  10. A chemical reaction in which the standard change in free energy is positive, and energy is absorbed.
  11. the part of the total internal energy of a thermodynamic system or sample of matter that results in the system temperature.

19 Clues: The major energy source for all bodily functions. • All chemical and physical processes in an organism • series of chemical reactions occurring within a cell • When one reaction is fueled by the energy from a previous reaction • An organic or inorganic substance required for the function of an enzyme • ...

Thermochemistry 2014-12-10

Thermochemistry crossword puzzle
Across
  1. a reaction that releases heat
  2. energy that a body possesses by virtue of being in motion
  3. the degree or intensity of heat present in a substance or object
  4. the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure
  5. energy can be neither created nor destroyed, but can change form
  6. a form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction, convection, or radiation
  7. a reaction that absorbs heat
  8. an apparatus for measuring the amount of heat involved in a chemical reaction
  9. a thermodynamic quantity equivalent to the total heat content of a system
Down
  1. the energy needed to raise the temperature of 1 gram of water through 1°C
  2. the change in the enthalpy of a chemical reaction that occurs at a constant pressure
  3. the heat required to raise the temperature of the unit mass of a given substance by a given amount
  4. a form of potential energy that can be absorbed or released during a chemical reaction
  5. an apparatus for measuring the amount of heat involved in a chemical reaction
  6. power derived from the utilization of physical or chemical resources
  7. the enthalpy change which occurs when one mole of the compound is burned completely in oxygen under standard conditions, and with everything in its standard state
  8. the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
  9. the amount of heat required to melt one mole of a solid at its melting point with no change in temperature
  10. the SI unit of work or energy
  11. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions

20 Clues: a reaction that absorbs heat • a reaction that releases heat • the SI unit of work or energy • energy that a body possesses by virtue of being in motion • the degree or intensity of heat present in a substance or object • energy can be neither created nor destroyed, but can change form • power derived from the utilization of physical or chemical resources • ...

Science chapter 7 vocab 2024-01-10

Science chapter 7 vocab crossword puzzle
Across
  1. the mass of one mole of any substance.
  2. a type of reaction in which multiple reactants combine to form a single product
  3. The substances which participate in a chemical reaction
  4. the act of reducing or the state of being reduced
  5. The unit of measurement in the International System of Units (SI) for amount of substance
  6. a reaction in which a compound breaks down into two or more simpler substances
  7. shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow.
Down
  1. a reaction in which one element is substituted for another element in a compound.
  2. A constant term related to the properties of a product
  3. the processes by which chemicals interact to form new chemicals with different compositions
  4. A chemical substance formed as a result of a chemical reaction
  5. the addition of oxygen to the substance or the removal of hydrogen from the substance
  6. a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen

13 Clues: the mass of one mole of any substance. • the act of reducing or the state of being reduced • A constant term related to the properties of a product • The substances which participate in a chemical reaction • A chemical substance formed as a result of a chemical reaction • a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen • ...

Chemical reactions 2022-05-13

Chemical reactions crossword puzzle
Across
  1. When magnesium(Mg) and hydrochloric acid(HCl) react, two tings are formed, magnesium chloride(MgCl) and ___
  2. It gives out heat during the reaction.
  3. This reactions needs heat to occur.
  4. Something that helps speed up a chemical reaction.
  5. The result when iron (Fe) reacts with water (H2O) and oxygen (O2).
  6. The elements reacting together in a chemical reaction.
Down
  1. Magnesium (Mg) + Chloride (Cl) (magnesium ___)
  2. Carbon (C) + Oxygen (O2) (___ dioxide)
  3. A chemical reaction forms a chemical ____
  4. A reversible reaction.

10 Clues: A reversible reaction. • This reactions needs heat to occur. • Carbon (C) + Oxygen (O2) (___ dioxide) • It gives out heat during the reaction. • A chemical reaction forms a chemical ____ • Magnesium (Mg) + Chloride (Cl) (magnesium ___) • Something that helps speed up a chemical reaction. • The elements reacting together in a chemical reaction. • ...

Science chapter 7 vocab 2024-01-10

Science chapter 7 vocab crossword puzzle
Across
  1. the mass of one mole of any substance.
  2. a type of reaction in which multiple reactants combine to form a single product
  3. The substances which participate in a chemical reaction
  4. the act of reducing or the state of being reduced
  5. The unit of measurement in the International System of Units (SI) for amount of substance
  6. a reaction in which a compound breaks down into two or more simpler substances
  7. shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow.
Down
  1. a reaction in which one element is substituted for another element in a compound.
  2. A constant term related to the properties of a product
  3. the processes by which chemicals interact to form new chemicals with different compositions
  4. A chemical substance formed as a result of a chemical reaction
  5. the addition of oxygen to the substance or the removal of hydrogen from the substance
  6. a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen

13 Clues: the mass of one mole of any substance. • the act of reducing or the state of being reduced • A constant term related to the properties of a product • The substances which participate in a chemical reaction • A chemical substance formed as a result of a chemical reaction • a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen • ...

Photosynthesis and respiration 2025-06-01

Photosynthesis and respiration crossword puzzle
Across
  1. A chemical process in plant cells that converts solar energy into chemical energy
  2. Process where food is broken into smaller products
  3. When a chemical changes form
  4. Living thing
  5. The ability to do work or cause change (measured in Joules)
  6. The cell structure in plants where photosynthesis takes place
  7. The attraction between two or more atoms that holds them together
  8. Requiring oxygen
Down
  1. A kind of reaction where energy is transformed from the environment into chemical energy
  2. A chemical process in cells that releases energy
  3. Cell structures that are the site of aerobic respiration
  4. A kind of reaction where more energy is released than is used
  5. Does not use oxygen

13 Clues: Living thing • Requiring oxygen • Does not use oxygen • When a chemical changes form • A chemical process in cells that releases energy • Process where food is broken into smaller products • Cell structures that are the site of aerobic respiration • The ability to do work or cause change (measured in Joules) • A kind of reaction where more energy is released than is used • ...

Chemistry Crossword Jamie 9E 2018-11-20

Chemistry Crossword Jamie 9E crossword puzzle
Across
  1. one of the horizontal rows of the periodic table and the elements it contains
  2. a chemical element or substance that possesses properties of both metals and non-metals
  3. science that studies substances and chemicals
  4. a neutral unit or subatomic particle that doesn't have any net charge
  5. a material with a definite chemical composition
  6. the phase transition of a substance from a solid to a liquid
  7. a column of the perodic table and the elements that share it
  8. a chemical element with the atomic symbol N and atomic number 7
  9. a species of atoms having the same number of protons in the atinuc nuclei
  10. of or pertaining to the atomic nucleus
  11. a subatomic particle with a negative net charge
Down
  1. one of four fundamental states of matter with relatively low energy particles that are close together
  2. a chemical element in its smallest form
  3. a cylinder like container used for measuring and holding liquids
  4. the mass of an atom
  5. a chemical reaction in which a material in the environment results in dissolution of the material
  6. a substance that is consumes in the course of a chemical reaction
  7. any element or compound that facilitates a speed increase of a chemical reaction
  8. a systems ability to work
  9. any chemical element which is a good conductor of electricity and heat
  10. a chemical element with the atomic symbol O and atomic number 8
  11. a scale use to specify acidity or basicity
  12. any of the five non-metallic elements of the 17th group
  13. a compound that gives a pH of less than 7.0 when dissolved in water
  14. a subatomic particle with a positive electric charge

25 Clues: the mass of an atom • a systems ability to work • of or pertaining to the atomic nucleus • a chemical element in its smallest form • a scale use to specify acidity or basicity • science that studies substances and chemicals • a material with a definite chemical composition • a subatomic particle with a negative net charge • ...

Chemical Reactions 2025-01-17

Chemical Reactions crossword puzzle
Across
  1. 2 liquids are combined and form a solid
  2. _______-Base Reactions happen when acids and bases mix and salt and water are formed
  3. the reaction of burning a hydrocarbon with oxygen
  4. chemicals you start with in a reaction
  5. a large number tells you how many of a molecule you have
  6. 1 reactant breaks into multiple products
  7. something done to reactions that do NOT follow the law of conservation of mass
  8. ________________ of mass: This law tells us matter is not created or destroyed
Down
  1. a chemical process where chemicals are broken down and rearranged into new chemicals
  2. chemicals that are made in a chemical reaction
  3. this symbol (__) tells us a substance is a liquid (dissolved in water)
  4. oxygen combines with this type of chemical to produce carbon dioxide and water
  5. a small-sized number on the bottom right of the symbol
  6. 2+ reactants combine to form 1 product
  7. another word for the "arrow" symbol in a reaction
  8. ____________Replacement is when 1 element replaces another in a compound
  9. ____________Replacement: 2 compounds form 2 new compounds
  10. a category of reactions containing synthesis, decomposition, single replacement and combustion

18 Clues: 2+ reactants combine to form 1 product • chemicals you start with in a reaction • 2 liquids are combined and form a solid • 1 reactant breaks into multiple products • chemicals that are made in a chemical reaction • the reaction of burning a hydrocarbon with oxygen • another word for the "arrow" symbol in a reaction • ...

Review 2023-11-20

Review crossword puzzle
Across
  1. pancake like stacks of thylakoid membrane
  2. Loss of biological activity/Something that gets deformed
  3. Another word for consumers
  4. an energy carrying molecule that carries/stores energy for cell functions
  5. the amount of energy needed to make a chemical reaction to start
  6. Releases energy
  7. Speeds up biochemical reactions by lowering the activation energy
Down
  1. All of the chemical reactions within each cell of an organism
  2. Substances that are changed during a chemical reaction
  3. Another word for producers
  4. Fluid like substance that fills the space between the grana
  5. The overall process by which sunlight, water and carbon dioxide are converted into sugar
  6. Absorbs energy
  7. Substances that are made by a chemical reaction

14 Clues: Absorbs energy • Releases energy • Another word for producers • Another word for consumers • pancake like stacks of thylakoid membrane • Substances that are made by a chemical reaction • Substances that are changed during a chemical reaction • Loss of biological activity/Something that gets deformed • Fluid like substance that fills the space between the grana • ...

BC SL 2021-10-15

BC SL crossword puzzle
Across
  1. quantity of an object; amount of matter in something
  2. no mass created/destroyed in chemical reaction
  3. law of ___ of mass
  4. substance after chemical reaction
Down
  1. substance before chemical reaction
  2. mass created/destroyed in chemical reaction
  3. Lavoisier french chemist from 18th century
  4. anything that has mass and takes up space
  5. amount of protons found in the nucleus of an element
  6. building blocks of all mass

10 Clues: law of ___ of mass • building blocks of all mass • substance after chemical reaction • substance before chemical reaction • anything that has mass and takes up space • Lavoisier french chemist from 18th century • mass created/destroyed in chemical reaction • no mass created/destroyed in chemical reaction • amount of protons found in the nucleus of an element • ...

Physical Science Spring Semester Review 2025-05-20

Physical Science Spring Semester Review crossword puzzle
Across
  1. The height of a wave
  2. The rate at which work is done, measured in watts
  3. The number of waves that pass in one second, measured in Hz.
  4. Organic molecule use to build and maintain body structures
  5. pure substance made of two or more elements chemically bonded
  6. The rate of change of an object’s velocity over time
  7. A group of organic molecules that include fats, oils, and waxes
  8. A reaction in which two simple substances form a more complex one
  9. Substances that form in a chemical reaction
  10. A mixture where the composition is not uniform throughout
Down
  1. Represents a chemical reaction using symbols
  2. Change of state from solid to liquid
  3. Change of state from a liquid to a solid
  4. The sum of all of the forces acting on an object
  5. A reaction in which two ions change places with each other (_________ displacement)
  6. An insoluble solid that forms out of a solution in a chemical reaction
  7. Building blocks of organic molecules
  8. The distance from crest to crest on a wave
  9. The change in position of an object
  10. Energy associated with motion
  11. A pure substance made of only one kind of atom
  12. Molecules with the same formulas but different structures
  13. A reaction in which one substance breaks down into simpler ones
  14. The amount of matter in an object
  15. Change of state from a gas directly to a solid

25 Clues: The height of a wave • Energy associated with motion • The amount of matter in an object • The change in position of an object • Change of state from solid to liquid • Building blocks of organic molecules • Change of state from a liquid to a solid • The distance from crest to crest on a wave • Substances that form in a chemical reaction • ...

Physical and chemical change 2018-05-30

Physical and chemical change crossword puzzle
Across
  1. to change its state from a liquid to another substance
  2. A chemical reaction is when something can create or produce new chemicals
  3. substance that causes or accelerates a chemical reaction without itself being affected
  4. is expressed in terms of mass per unit
  5. It is a chemical that helps a chemical reaction happen. it is a type of catalyst
Down
  1. when 2 atom are attractive to each other/or remain attractive to each other
  2. When a substance react they could collide or contact each other
  3. A substance that could only be made out of 3 atoms, atom,oxygen,and carbon
  4. A molecule that contains less than 3 and more than 1
  5. when a gas transform into liquid
  6. A substance that is made up with different types of atoms connected together
  7. When the environment does damage to a piece of metal
  8. a certain column situated
  9. It is dangerous gas substance the is really dangerous to breath in

14 Clues: a certain column situated • when a gas transform into liquid • is expressed in terms of mass per unit • A molecule that contains less than 3 and more than 1 • When the environment does damage to a piece of metal • to change its state from a liquid to another substance • When a substance react they could collide or contact each other • ...

Changes in Matter Vocabulary Crossword 2025-10-26

Changes in Matter Vocabulary Crossword crossword puzzle
Across
  1. A characteristic of a substance that does not involve a chemical change.
  2. A chemical reaction that absorbs heat.
  3. A substance that increases the rate of a chemical reaction without being consumed in the process.
  4. A property of matter that describes a substance’s ability to participate in chemical reactions.
  5. A change of matter from one form to another without changing its chemical properties.
Down
  1. A solid that forms and separates from a liquid mixture, often when two liquids are combined in a chemical reaction.
  2. A law that states that matter cannot be created or destroyed.
  3. A change that occurs when two or more substances combine to form a new substance with new properties.
  4. A mixture where one substance is completely dissolved in another substance.
  5. A chemical reaction that releases heat.
  6. The minor component of a solution. The substance that gets dissolved in a solution.
  7. The major component of a solution. The substance that dissolves the minor component.

12 Clues: A chemical reaction that absorbs heat. • A chemical reaction that releases heat. • A law that states that matter cannot be created or destroyed. • A characteristic of a substance that does not involve a chemical change. • A mixture where one substance is completely dissolved in another substance. • ...

Chemistry Units 3-6 2022-05-24

Chemistry Units 3-6 crossword puzzle
Across
  1. A bond formed between a nonmetal and nonmetal.
  2. The chemicals you form in a reaction.
  3. The amount of produce you SHOULD get from a reaction is called the ________ yield.
  4. This is the unit for grams (g).
  5. When oxygen reacts with a hydrocarbon and produces carbon dioxide and water it is called a ___________ reaction.
  6. An atom or molecule with a positive or negative charge due to the loss or gain of an electron.
  7. A type of reaction that combines two reactants to form one product.
  8. _______ bonding is a dipole-dipole interaction occurring with a hydrogen and a nitrogen, oxygen, or fluorine atom.
  9. The different area or location an electron can be found in an atom.
  10. A type of reaction that breaks down 1 reactant into two products.
  11. The number 6.02x10^23 is named after ______.
  12. When two partially charged molecules(polar covalent bonds)interreact.
  13. The different orientation of a sublevel.
  14. An ion with two or more atoms.
  15. An electron _________ shows how electrons are distributed within an atom.
  16. The reactant that runs out first is called the _______ reactant.
  17. The is the name for g/mol.
Down
  1. The large number that shows the number of molecules in a chemical reaction.
  2. A bond formed between a metal and metal.
  3. The _____ rule says that some elements are trying to gain up to 8 valence electrons.
  4. A way to represent chemical compounds and identify the elements and number of atoms is called a Chemical ________.
  5. A covalent bond where both elements share electrons unequally.
  6. A word used in chemistry to say that we have 6.02x10^23 of that thing
  7. Two or more atoms joined together.
  8. The amount of product you DID get from a reaction is called the ________ yield.
  9. A negatively charged ion.
  10. connections formed between atoms as a result of sharing, giving, or exchanging electrons.
  11. The chemical _______ is used to show the overall process that occurs in a reaction.
  12. The average distance of an electron from the nucleus.
  13. A _______ (past tense) reaction is when a chemical equation shows that each element is equal on the reactant and product side.
  14. The small number that shows the number of atoms of an element.
  15. The chemicals you start with in a reaction.
  16. _________ electrons are found in the outermost shell/energy level of an atom.
  17. It is used to convert from moles A to moles B.
  18. ________ forces exist between two or more separate molecules.
  19. A covalent bond where both elements share electrons equally.
  20. A bond formed between a metal and nonmetal.
  21. A positively charged ion.

38 Clues: A negatively charged ion. • A positively charged ion. • The is the name for g/mol. • An ion with two or more atoms. • This is the unit for grams (g). • Two or more atoms joined together. • The chemicals you form in a reaction. • A bond formed between a metal and metal. • The different orientation of a sublevel. • The chemicals you start with in a reaction. • ...

Sciene 2023-05-04

Sciene crossword puzzle
Across
  1. consisting of two equal, identical, or similar parts or things.
  2. the best high school in existance
  3. a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
  4. an article or substance that is manufactured or refined for sale.
  5. the ability or tendency to float in water or air or some other fluid.
  6. the distance from the top or surface to the bottom of something.
  7. host of the PBS children's science show _____ ____ the Science Guy
  8. the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained.
  9. the degree of compactness of a substance.
  10. the process of equating one thing with another.
  11. the production of chemical compounds by reaction from simpler materials.
  12. a multiplier or factor that measures some property.
Down
  1. the state or process of rotting; decay.
  2. (of a reaction or process) accompanied by or requiring the absorption of heat.
  3. a substance that takes part in and undergoes change during a reaction
  4. the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12
  5. only one; not one of several.
  6. raise to a higher position or level.
  7. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. (of a reaction or process) accompanied by the release of heat.
  9. relating to chemistry, or the interactions of substances as studied in chemistry.

21 Clues: only one; not one of several. • the best high school in existance • raise to a higher position or level. • the state or process of rotting; decay. • the degree of compactness of a substance. • the process of equating one thing with another. • a multiplier or factor that measures some property. • (of a reaction or process) accompanied by the release of heat. • ...

Challenge it 2021-03-03

Challenge it crossword puzzle
Across
  1. after chemical reaction
  2. before chemical reaction
  3. group of atoms bonded together
  4. shows the no mass was created or destroyed
  5. represent the chemical reaction
Down
  1. anything that takes up space
  2. atoms can’t be_ or destroyed
  3. building blocks of life
  4. equations: representation of a chemical formula in symbols
  5. of mass: mass can never be created or destroyed

10 Clues: building blocks of life • after chemical reaction • before chemical reaction • anything that takes up space • atoms can’t be_ or destroyed • group of atoms bonded together • represent the chemical reaction • shows the no mass was created or destroyed • of mass: mass can never be created or destroyed • equations: representation of a chemical formula in symbols

Chemistry Vocab - JS 2025-04-24

Chemistry Vocab - JS crossword puzzle
Across
  1. Change, same chemical structure
  2. Science of atoms and elements
  3. Space inside something
  4. Attracting molecules
  5. The result of mixing reactants
  6. Mixed with another, change
  7. From a reaction, irreversible
  8. Takes up space, weight
  9. Molecules, atoms, and elements combination
  10. Measurement, hot and cold
  11. Combination, can be separated\
  12. Reaction, release heat
Down
  1. Something that intensifies a reaction
  2. Visible form of a substance, characteristic
  3. A substance that can't be downgraded
  4. Measure of matter in something
  5. Result of a reaction
  6. Characteristic of a changed substance
  7. Unit of structure, smallest
  8. To do work
  9. Energy movement
  10. Group of bonded atoms
  11. To connect atoms
  12. Reaction, absorbs heat

24 Clues: To do work • Energy movement • To connect atoms • Attracting molecules • Result of a reaction • Group of bonded atoms • Space inside something • Reaction, absorbs heat • Takes up space, weight • Reaction, release heat • Measurement, hot and cold • Mixed with another, change • Unit of structure, smallest • Science of atoms and elements • From a reaction, irreversible • ...

Ch. 13 Chemical Reactions - Corryn Willson 2017-10-07

Ch. 13 Chemical Reactions - Corryn Willson crossword puzzle
Across
  1. Description of a chemical reaction in which there is a net absorption of energy.
  2. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  3. Description of a chemical reaction in which there is a net release of energy.
  4. A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.
  5. A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right.
  6. The process by which a reactant gains one or more electrons.
Down
  1. The minimum energy required in order for a chemical reaction to proceed.
  2. A reaction between an acid and a base.
  3. A substance that donates hydrogen ions.
  4. The deterioration of a metal, typically caused by atmospheric oxygen.

10 Clues: A reaction between an acid and a base. • A substance that donates hydrogen ions. • The process by which a reactant gains one or more electrons. • The deterioration of a metal, typically caused by atmospheric oxygen. • The minimum energy required in order for a chemical reaction to proceed. • ...

Photosynthesis 2024-10-04

Photosynthesis crossword puzzle
Across
  1. fluid inside chloroplast
  2. O2
  3. Help the photosynthesis reaction happen quickly
  4. The left side of a chemical reaction
  5. Energy in the form of light
  6. C6 H12 O6
  7. stored form of glucose in plants
  8. CO2
  9. Carbon dioxide enters through
Down
  1. Process by which plants absorb sunlight to make sugar
  2. Organelle that's function is photosynthesis
  3. energy in the mitochondria
  4. water enters through
  5. when a plant is exposed to too high of temperatures it can become
  6. make their own food (ex. plants algae)
  7. The right side of a chemical reaction

16 Clues: O2 • CO2 • C6 H12 O6 • water enters through • fluid inside chloroplast • energy in the mitochondria • Energy in the form of light • Carbon dioxide enters through • stored form of glucose in plants • The left side of a chemical reaction • The right side of a chemical reaction • make their own food (ex. plants algae) • Organelle that's function is photosynthesis • ...

Chemistry Review Challenge 2023-02-02

Chemistry Review Challenge crossword puzzle
Across
  1. the chemical that we begin a reaction with
  2. a reaction where a chemical swaps partners. Can be single or double
  3. a reaction where a chemical breaks apart
  4. what we do to chemical reactions to make right = left
  5. found on the periodic table
Down
  1. a reaction where fire is released as energy
  2. a chemical that we end the reaction with
  3. what we call 'stuff' in chemistry
  4. a reaction where 2 or more chemicals join together

9 Clues: found on the periodic table • what we call 'stuff' in chemistry • a chemical that we end the reaction with • a reaction where a chemical breaks apart • the chemical that we begin a reaction with • a reaction where fire is released as energy • a reaction where 2 or more chemicals join together • what we do to chemical reactions to make right = left • ...

Physical and chemical change 2018-05-30

Physical and chemical change crossword puzzle
Across
  1. to change its state from a liquid to another substance
  2. A chemical reaction is when something can create or produce new chemicals
  3. substance that causes or accelerates a chemical reaction without itself being affected
  4. is expressed in terms of mass per unit
  5. It is a chemical that helps a chemical reaction happen. it is a type of catalyst
Down
  1. when 2 atom are attractive to each other/or remain attractive to each other
  2. When a substance react they could collide or contact each other
  3. A substance that could only be made out of 3 atoms, atom,oxygen,and carbon
  4. A molecule that contains less than 3 and more than 1
  5. when a gas transform into liquid
  6. A substance that is made up with different types of atoms connected together
  7. When the environment does damage to a piece of metal
  8. a certain column situated
  9. It is dangerous gas substance the is really dangerous to breath in

14 Clues: a certain column situated • when a gas transform into liquid • is expressed in terms of mass per unit • A molecule that contains less than 3 and more than 1 • When the environment does damage to a piece of metal • to change its state from a liquid to another substance • When a substance react they could collide or contact each other • ...

Vocab 2015-11-02

Vocab crossword puzzle
Across
  1. A solution in which wáter is the solvent. For example saltwater
  2. A reaction that occurs when one reactant is exchanged for one ion of the second reaction A+BC->B+AC
  3. Any chemical reaction that involves oxidation and reduction
Down
  1. A reaction that occurs when two reactant ionic compounds exchange ions to form two new product compounds with the same ions AB+CD->AD+CB
  2. A reaction that occurs where two or more single elements are combined to create a complex compound A+B->AB
  3. Equilibrium constant that applies to the dissolution of a slightly soluble compound
  4. A reaction that occurs when a complex compound is broken down into two or more single elements AB->A+B
  5. The maximum amount of solute that may be dissolved in a solvent
  6. A chemical equation for a reaction which lists only those species participating in the reaction
  7. States that matter cannot be destroyed or created in an isolated system
  8. When a chemical eaction occurs at the same rate, in both directions
  9. A chemical reaction that occurs when a compound and an oxidant react to produce a new product and heat

12 Clues: Any chemical reaction that involves oxidation and reduction • A solution in which wáter is the solvent. For example saltwater • The maximum amount of solute that may be dissolved in a solvent • When a chemical eaction occurs at the same rate, in both directions • States that matter cannot be destroyed or created in an isolated system • ...

Biology 30 Crossword 2014-09-25

Biology 30 Crossword crossword puzzle
Across
  1. made up of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur.
  2. A substance that brings out a chemical reaction without being changed itself.
  3. Bind to active sites and prevent substrates from binding.
  4. Always pairs with thymine.
  5. Bonds holding a protein molecule are disrupted by physical or chemical means, causing a temporary change in shape.
  6. Made up of nucleotides.
  7. Another name for proteins.
  8. Made up of an amino acid group and an acid group.
  9. Regions on the surface of enzymes that fit the substrate.
Down
  1. Always pairs with cytosine.
  2. Proteins that speed up chemical rections
  3. the type of bond that holds together proteins.
  4. Has ribose sugar, can leave the nucleus.
  5. The amount of energy needed for a chemical reaction to occur.
  6. Bonds holding a protein molecule are disrupted, causing a permanent change in shape.
  7. A substance that enzymes act upon.
  8. A type of nitrogen base in nucleotides that have two rings as part of their structure.
  9. Composed of a five carbon sugar, a phosphate molecule and a nitrogen base.
  10. Has deoxyribose sugar, stays in the nucleus.
  11. Substance formed from the substrate at the end of a chemical reaction with an enzyme.
  12. A type of enzyme that works on sucrose.

21 Clues: Made up of nucleotides. • Always pairs with thymine. • Another name for proteins. • Always pairs with cytosine. • A substance that enzymes act upon. • A type of enzyme that works on sucrose. • Proteins that speed up chemical rections • Has ribose sugar, can leave the nucleus. • Has deoxyribose sugar, stays in the nucleus. • the type of bond that holds together proteins. • ...

Chemistry 2023-10-31

Chemistry crossword puzzle
Across
  1. Stretch
  2. Things that are put together and stirred
  3. Something that is done in response to a change or addition of a substance
  4. The smallest things
  5. Things that make up most of what we see
  6. After a reaction
  7. What we breathe out
  8. 1+1=2
  9. Chemical bonds are the same
  10. A chemical reaction with hydrocarbon and oxygen to produce carbon dioxide and water
  11. A lot of metals together
  12. Metal + Oxygen --> Answer
  13. The thing humans do
  14. Chemical bonds change
  15. I am flat and bendy now
Down
  1. Things on the Periodic Table
  2. 24 karat Gold
  3. The thing plants do
  4. A subatomic particle of about the same mass as a proton but without an electric charge
  5. A metal made by combining two or more metallic elements
  6. A reaction with metals and oxygen to produce a metal oxide
  7. The things that make up everything
  8. A liquid mixture with a solute and a solvent
  9. A stable subatomic particle occurring in all atomic nuclei
  10. WOW shiny
  11. How much electricity flows through me
  12. Will react with an Metal to produce a metal salt and hydrogen
  13. The things that make up an object
  14. A substance in which things are built upon
  15. Rust

30 Clues: Rust • 1+1=2 • Stretch • WOW shiny • 24 karat Gold • After a reaction • The thing plants do • The smallest things • What we breathe out • The thing humans do • Chemical bonds change • I am flat and bendy now • A lot of metals together • Metal + Oxygen --> Answer • Chemical bonds are the same • Things on the Periodic Table • The things that make up an object • The things that make up everything • ...

Electrochemistry 2023-10-18

Electrochemistry crossword puzzle
Across
  1. - Unit of charge in electrochemistry.
  2. - Term for spontaneous, voltaic cell reactions.
  3. - Chemical reactions involving electron transfer.
  4. - Electrode that responds to specific ions.
  5. - Gain of electrons during a reaction.
  6. - Technique involving measurement of current.
  7. - Instrument to control the potential between electrodes.
  8. - Electrochemical property affecting current flow.
  9. - Deterioration of a metal due to chemical reactions.
  10. - Electrode used as a reference in electrochemical measurements.
  11. - Unit of electric charge.
  12. - Loss of electrons during a reaction.
  13. - Technique for measuring current at a constant potential.
  14. - Device that generates electrical energy from a chemical reaction.
  15. - Region of charge at the electrode-electrolyte interface.
  16. - Technique for separating charged molecules.
  17. - Cell that converts chemical energy into electrical energy.
Down
  1. - Process of reducing the charge on a battery.
  2. - Shift in electrode potential from ideal values.
  3. - Device to measure small electric currents.
  4. - Chemical decomposition through electricity.
  5. - Difference between the thermodynamic and actual potential.
  6. - Force that drives electrons through a circuit.
  7. - Allows ions to move between half-cells in a cell.
  8. - Individual component of an electrochemical cell.
  9. - Electrode where oxidation occurs.
  10. - Conductor used to make electrical contact with a non-metallic part.
  11. - Electrode where reduction occurs.
  12. - Equation relating concentration to cell potential.
  13. - Measure of a material's ability to conduct electricity.

30 Clues: - Unit of electric charge. • - Electrode where oxidation occurs. • - Electrode where reduction occurs. • - Unit of charge in electrochemistry. • - Gain of electrons during a reaction. • - Loss of electrons during a reaction. • - Electrode that responds to specific ions. • - Device to measure small electric currents. • - Chemical decomposition through electricity. • ...

Chemical equilibrium 2024-12-08

Chemical equilibrium crossword puzzle
Across
  1. The reaction proceeding in the direction of products formation.
  2. The process of a system seeking the lowest energy configuration.
  3. The pressure exerted by a single gas in a mixture of gases.
  4. The influence of catalysts in altering equilibrium speed but not position.
  5. Equilibrium in reactions involving solid components.
  6. Equilibrium in reactions where all components are liquids.
  7. The reaction proceeding in the direction of reactants formation.
  8. A graph showing the progress of a reaction along its pathway.
  9. The ratio of moles of a component to the total moles in a mixture.
  10. An equilibrium involving reactants and products in the same phase.
  11. equation An equation relating equilibrium constant to temperature changes.
  12. Equilibrium involving ionization in aqueous solutions.
  13. An equilibrium involving reactants and products in different phases.
  14. law A law stating that reaction rate is proportional to active masses.
  15. A constant expressing the ratio of products to reactants at equilibrium.
  16. The composition of products and reactants at equilibrium.
Down
  1. The potential energy of a species that influences its chemical reactions.
  2. The stability of a system determined by energy levels at equilibrium.
  3. Equilibrium between different physical states of a substance.
  4. Equilibrium favoring reactant formation under given conditions.
  5. The ratio of product and reactant concentrations at any point in the reaction.
  6. The effect of temperature on the equilibrium constant.
  7. A change in equilibrium position due to external perturbations.
  8. Equilibrium favoring product formation under given conditions.
  9. The minimum energy required to initiate a chemical reaction.
  10. A situation where the reaction pathway determines product amounts.
  11. principle Principle stating how a system at equilibrium responds to changes in conditions.
  12. The equilibrium constant for sparingly soluble salts.
  13. Equilibrium in reactions where all components are gases.
  14. A state where the forward and reverse reactions occur at equal rates.

30 Clues: Equilibrium in reactions involving solid components. • The equilibrium constant for sparingly soluble salts. • The effect of temperature on the equilibrium constant. • Equilibrium involving ionization in aqueous solutions. • Equilibrium in reactions where all components are gases. • The composition of products and reactants at equilibrium. • ...

Chemical Reactions 2023-02-28

Chemical Reactions crossword puzzle
Across
  1. Reactions that absorb energy
  2. Is what you start with
  3. A system that can exchange both energy and matter with its surrounding
  4. Reactants that absorb energy
  5. A substance that speeds up a chemical reaction.
  6. What you end with
Down
  1. A short easy way to show a chemical reaction using symbols
  2. Number that is in frount of an equation.
  3. A rule that says that mass is neither created nor destroyed
  4. Small number found to the right of each element
  5. A solid formed by a change in a solution.
  6. reaction a process that leads to the chemical transformation of one set if chemical substances to another.
  7. A system that can only exchange energy with its surrounding, not matter.

13 Clues: What you end with • Is what you start with • Reactions that absorb energy • Reactants that absorb energy • Number that is in frount of an equation. • A solid formed by a change in a solution. • Small number found to the right of each element • A substance that speeds up a chemical reaction. • A short easy way to show a chemical reaction using symbols • ...

Chemistry Vocabulary Review 2019-02-25

Chemistry Vocabulary Review crossword puzzle
Across
  1. Two letters used as an abbreviation for an element.
  2. A representation of a chemical reaction using symbols and chemical formulas
  3. A combination of substances without chemical bonds.
  4. A poisonous substance that can harm or kill a living organism.
  5. The phase of matter that is the least dense.
  6. The substance produced as a result of a chemical reaction.
  7. The starting material in a chemical reaction.
  8. The simplest forms of matter, located on the periodic table.
  9. The positively charged particle in the nucleus of an atom.
Down
  1. What you make when elements are bonded together.
  2. A combination of symbols used to abbreviate a compound.
  3. The phase of matter that is the most dense.
  4. A solid dissolved in water (aqueous).
  5. A substance that has mass and volume.

14 Clues: A solid dissolved in water (aqueous). • A substance that has mass and volume. • The phase of matter that is the most dense. • The phase of matter that is the least dense. • The starting material in a chemical reaction. • What you make when elements are bonded together. • Two letters used as an abbreviation for an element. • ...

Chemical reactions 2022-05-16

Chemical reactions crossword puzzle
Across
  1. a substance made of 2 or more identical molecules
  2. when new substances form they get new
  3. a byproduct of a reaction that makes it warm
  4. a reaction requiring heat
  5. product of Magnesium and Oxygen
  6. a type of reaction that you can reverse
Down
  1. when oxygen and water combines with metal naturally over time and turns metal to rust
  2. the smallest unit
  3. a reaction that gives out heat
  4. anything speeding up the chemical reaction
  5. which type of reaction is irreversible
  6. what you need to get molecules moving
  7. when you mix highly unstable products this could happen

13 Clues: the smallest unit • a reaction requiring heat • a reaction that gives out heat • product of Magnesium and Oxygen • when new substances form they get new • what you need to get molecules moving • which type of reaction is irreversible • a type of reaction that you can reverse • anything speeding up the chemical reaction • a byproduct of a reaction that makes it warm • ...

Energy in reactions 2022-01-04

Energy in reactions crossword puzzle
Across
  1. reaction which releases heat energy
  2. substance that is used in a chemical reaction
  3. sign for this is two arrows pointing in opposite directions
  4. variable that you change
Down
  1. variable that you keep the same
  2. substance that is made in a chemical reaction
  3. reaction which takes in heat energy
  4. energy that is required to start a reaction
  5. you use this to weigh a substance
  6. reaction between an acid and an alkali
  7. you use this to measure the temperature
  8. variable that you measure

12 Clues: variable that you change • variable that you measure • variable that you keep the same • you use this to weigh a substance • reaction which takes in heat energy • reaction which releases heat energy • reaction between an acid and an alkali • you use this to measure the temperature • energy that is required to start a reaction • substance that is made in a chemical reaction • ...

Anna's Energy Transfer Crossword 2024-02-05

Anna's Energy Transfer Crossword crossword puzzle
Across
  1. The substances that participate in a chemical reaction.
  2. The transfer of heat through empty space by invisible electromagnetic rays. No matter is required for the heat transfer to occur.
  3. The law that states mass is neither created or destroyed in a chemical reaction.
  4. The measure of the average kinetic energy of the particles of an object or substance.
  5. The flow of thermal energy.
  6. The transfer of heat through a solid material by direct contact of particles.
  7. The point as where a material changes from solid to liquid.
Down
  1. The temperature at which liquid turns to a solid when cooled.
  2. Representing a chemical reaction using symbols of the elements to indicate the amount of substance of each reactant and product.
  3. The transfer of heat in a fluid caused when hotter, less dense fluids rise, and cooler, more dense fluids sink.
  4. A chemical reaction that releases energy through light or heat.
  5. What comes out of a chemical reaction.

12 Clues: The flow of thermal energy. • What comes out of a chemical reaction. • The substances that participate in a chemical reaction. • The point as where a material changes from solid to liquid. • The temperature at which liquid turns to a solid when cooled. • A chemical reaction that releases energy through light or heat. • ...

08CW-Reaction Vocab 2024-01-22

08CW-Reaction Vocab 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 • ...

Year 8 Chemistry 2023-11-01

Year 8 Chemistry crossword puzzle
Across
  1. A stable subatomic particle occurring in all atomic nuclei.
  2. Means Shiny
  3. is a substance that is chemically joined or exists as its own element.
  4. A change in matter that does not form new substances
  5. Rust
  6. A liquid mixture with a solute and solvent.
  7. Means Stretchy
  8. A change in matter that forms one or more new substances.
  9. two or more elements that have chemically joined together.
  10. Things that make up an object
  11. Alloy a mixture of two or more metals, and may even include non metal elements.
  12. are the smallest blocks of matter that form all our objects - these are made out of individual atoms!
  13. is a chemical reaction with a Hydrocarbon and oxygen to produce Carbon dioxide and water. This reaction releases heat and light.
Down
  1. A combination of substances that can be physically separated.
  2. The new substances formed by a reaction are called
  3. able to dissolve in other substances
  4. hold molecules together and create temporary connections that are essential to life.
  5. In all living cells, Oxygen reacts with sugar to produce Carbon dioxide and water.
  6. a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances.
  7. What we breathe out
  8. the minor component in a solution, dissolved in the solvent
  9. Meaning flat and bendy
  10. is a reaction that combines Carbon dioxide and water to produce Sugar and Oxygen under the presence of Sunlight.
  11. A subatomic particle of about the same mass as a proton but without an electric charge.
  12. is a reaction with metals and oxygen to produce a metal oxide. This is a very slow reaction.
  13. An attractive force that holds two atoms together
  14. Atoms with the same number of protons and electrons make one
  15. The substances that react with each other are called
  16. A group of atoms bonded together
  17. The smallest particle of an element
  18. Will react with a metal to produce a metal salt hydrogen.

31 Clues: Rust • Means Shiny • Means Stretchy • What we breathe out • Meaning flat and bendy • Things that make up an object • A group of atoms bonded together • The smallest particle of an element • able to dissolve in other substances • A liquid mixture with a solute and solvent. • An attractive force that holds two atoms together • The new substances formed by a reaction are called • ...

GENERAL CHEMISTRY 50 WORD CROSSWORD 2020-05-29

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

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

chemistry 2016-06-12

chemistry crossword puzzle
Across
  1. of conservation of mass/ in a chemical reaction, the mass of the products always equals the mass of reactants
  2. phosphate/ Ca (PO )
  3. elements with properties intermediate between the properties of metals and non-metals
  4. /OH
  5. ion/ a group of atoms, usually of different elements, that act as a single ion
  6. that has a pH level less than 7
  7. element/ an element that can form an ion in more than one way
  8. bond/ a connection between the atoms of non-metals, in which two atoms share a pair of electrons
  9. member of the family of elements composed of very reactive, coloured non-metals
Down
  1. substance that cannot be broken down into any simpler substance by chemical means
  2. compound /when atoms of two or more different non-metals combine, a pure substance known as a ..... is formed
  3. ability to stretch without breaking
  4. suspension of small, solid particles formed during a chemical reaction
  5. substance that has a pH level more that 7
  6. reaction /a process by which chemical change happens
  7. / SO
  8. Sulphate / Al (SO )
  9. indicator/ a mixture of chemicals that changes colour through a wide range of pH values
  10. NH
  11. atom or group of atoms with a negative charge or a positive charge

20 Clues: NH • /OH • / SO • phosphate/ Ca (PO ) • Sulphate / Al (SO ) • that has a pH level less than 7 • ability to stretch without breaking • substance that has a pH level more that 7 • reaction /a process by which chemical change happens • element/ an element that can form an ion in more than one way • atom or group of atoms with a negative charge or a positive charge • ...

Acids, Bases and Chemical Reactions 2021-03-14

Acids, Bases and Chemical Reactions crossword puzzle
Across
  1. a popping sound when a lit match is added to the gas hydrogen
  2. a chemical compound made of a metal joined to a non-metal
  3. material made from artificial sources, often from petrochemicals found underground
  4. area, chemical reactions speed up when this is increased
  5. a type of chemical reaction between an acid and a base that produces a salt and water
  6. a substance that tastes bitter, contains oxides or hydroxides, and is caustic to the skin
  7. something used to speed up a chemical reaction
Down
  1. a substance that turns cloudy when carbon dioxide is present
  2. the measure of how acidic a substance is
  3. a chemical that indicates the pH of a substance by changing colour
  4. a type of reaction that gives out energy feeling hot
  5. material made from animal and plant products
  6. a type of reaction that absorbs energy from its surrounds and feels cold
  7. a substance that tastes sour, contains hydrogen and will burn skin

14 Clues: the measure of how acidic a substance is • material made from animal and plant products • something used to speed up a chemical reaction • a type of reaction that gives out energy feeling hot • area, chemical reactions speed up when this is increased • a chemical compound made of a metal joined to a non-metal • ...

Science Vocabulary. 2023-11-16

Science Vocabulary. crossword puzzle
Across
  1. What causes a chemical change
  2. You breathe out
  3. to change
  4. How plants make food.
  5. What makes leaves green
Down
  1. Produces ATP
  2. You breathe this.
  3. Converting solar energy.
  4. Power house of the cell/generate energy
  5. Reuse of carbon.
  6. Food produced by plants
  7. What makes a chemical reaction happen
  8. What you get from a chemical reaction

13 Clues: to change • Produces ATP • You breathe out • Reuse of carbon. • You breathe this. • How plants make food. • Food produced by plants • What makes leaves green • Converting solar energy. • What causes a chemical change • What makes a chemical reaction happen • What you get from a chemical reaction • Power house of the cell/generate energy

Chemical Reactions 2025-01-28

Chemical Reactions crossword puzzle
Across
  1. In a chemical reaction, these are the chemicals that you end up with.
  2. Substances made up of a group of two or more atoms.
  3. A chemical reaction in which heat is a product. This reaction will feel hot to the surroundings.
  4. In a chemical reaction, these are the chemicals that you begin with.
  5. A chemical reaction in which heat is a reactant. This reaction will feel cold to the surroundings.
Down
  1. This happens when the atoms of two or more chemicals break apart, rearrange, and form new substances.
  2. These are descriptions of a substance when making scientific observations.
  3. An atom that is usually represented by the color red.
  4. An atom found in the chemical "methane"
  5. The smallest unit of matter. Every single thing in the universe is made of this.
  6. An atom that makes up diamonds.

11 Clues: An atom that makes up diamonds. • An atom found in the chemical "methane" • Substances made up of a group of two or more atoms. • An atom that is usually represented by the color red. • In a chemical reaction, these are the chemicals that you begin with. • In a chemical reaction, these are the chemicals that you end up with. • ...

science 2023-06-27

science crossword puzzle
Across
  1. a natural process that converts a refined metal into a more chemically stable oxide.
  2. a diatomic anion with chemical formula OH⁻. It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge.
  3. any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis)
  4. a chemical process in which a substance reacts rapidly with oxygen and gives off heat.
  5. another word for base
  6. When a reactant loses electrons during a reaction.
  7. a chemical reaction in which acid and a base react with an equivalent quantity of each other.
  8. a thermodynamic process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light, electricity, or sound.
  9. a chemical element with the symbol Fr and atomic number 87. It is extremely radioactive.
Down
  1. the chemical element with the symbol K and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife.
  2. process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts.
  3. any substance composed of identical molecules consisting of atoms of two or more chemical elements.
  4. the change in position of an object.
  5. a process that leads to the chemical transformation of one set of chemical substances to another.
  6. a salt of carbonic acid, characterized by the presence of the carbonate ion, a polyatomic ion with the formula CO2−3.
  7. an atom or group of atoms that has an electric charge.
  8. the chemical element with the symbol H and atomic number 1. It is the lightest element.
  9. any thermodynamic process with an increase in the enthalpy H of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system.
  10. salt.
  11. A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals.

20 Clues: salt. • another word for base • the change in position of an object. • When a reactant loses electrons during a reaction. • an atom or group of atoms that has an electric charge. • a natural process that converts a refined metal into a more chemically stable oxide. • a chemical process in which a substance reacts rapidly with oxygen and gives off heat. • ...

Yr9 Chemistry Revision 2016-12-15

Yr9 Chemistry Revision crossword puzzle
Across
  1. Soft, reactive, low density metallic element used in yellow street lights.
  2. Visible characteristic of a chemical compound like copper sulphate.
  3. When liquid changes state to a gas.
  4. Something with a pH less than 7.
  5. The element present in all organic compounds.
  6. Where new chemical products are formed from chemical reactants.
  7. Gas formed when metal carbonate and acid react.
  8. Acid rain results from the burning of this yellow element.
  9. Industrially important form of iron used for car bodies and structural girders.
  10. A liquid with a solid dissolved in it.
  11. Chemical reaction between a substance and oxygen in the air.
  12. oxide Iron corrodes in the presence of air and water to form ...
  13. Complete reaction between acid and alkali.
  14. Indicator that spans the range 0 to 14.
  15. Halogen that makes up half of the atoms in common salt.
  16. A tiny particle, much lighter than an atom, that carries a negative electric charge.
  17. Able to be picked up with a magnet.
  18. The most common solvent.
  19. This is found on the periodic table. It contains only one kind of atom.
  20. This is from 0 to 14 for the pH scale of acids and alkalis.
  21. A chemical compound containing oxygen and one other element.
Down
  1. Test for hydrogen.
  2. Unreactive metallic element with extremely high electrical conductivity used for coins.
  3. Something with a pH of 7.
  4. Non metallic gaseous element needed for respiration./
  5. When substances chemically combine they ......
  6. This is called natural gas, and is used in our Bunsen burners.
  7. When a liquid cools to become a solid.
  8. Test for oxygen.
  9. When a gas changes state to a liquid.
  10. Gas formed when metal and acid react.
  11. A chemical that will easily react to form a new compound.
  12. Mild corrosion of silver, for example.
  13. A finishing substance in a chemical reaction.
  14. Acid from grapefruits and oranges.
  15. Compounds containing only a metal, carbon and oxygen.
  16. Solid formed when metal oxide and acid react.
  17. Solid formed when metal carbonate and acid react.
  18. A starting substance in a chemical reaction.
  19. Test for carbon dioxide.
  20. A group of atoms chemically joined.
  21. This means to do with heat.
  22. Most common magnetic element. Corrodes to form rust.
  23. Able to be drawn (pulled) easily into a wire.
  24. Something with a pH more than 7.

45 Clues: Test for oxygen. • Test for hydrogen. • Test for carbon dioxide. • The most common solvent. • Something with a pH of 7. • This means to do with heat. • Something with a pH less than 7. • Something with a pH more than 7. • Acid from grapefruits and oranges. • When liquid changes state to a gas. • A group of atoms chemically joined. • Able to be picked up with a magnet. • ...

Thermochemistry Vocabulary Activity 2018-04-19

Thermochemistry Vocabulary Activity crossword puzzle
Across
  1. Study of heat changes in chemical reactions
  2. Enthalpy change is the same whether the reaction takes place in one step or in a series of steps
  3. Energy, in kilojoules, required to melt 1 mole of a solid
  4. heat content of a system at constant pressure
  5. Energy, in kilojoules, required to vaporize 1 mole of a liquid
  6. change in enthalpy for a reaction in which 1 mole of a compound is formed from its constituent elements.
  7. Energy is neither created nor destroyed in an ordinary chemical or physical process
  8. The totality of all existing things
  9. Heat, in joules or calories, released by 1 mole of a substance as it changes from a vapor to a liquid at the liquid's boiling point
  10. a heat-dissipating process
  11. SI unit of energy; 4.184J equal one calorie
  12. Any part of the universe upon which attention is focused
  13. Heat released or absorbed during a chemical reaction., equivalent to h, the change in enthalpy
Down
  1. heat, in joules or calories, released or absorbed by 1 mole of a substance as it dissolves in water to get 1L of molar solution.
  2. quantity of heat, in joules or calories, required to raise the temperature of 1g of a substance 1 degree Celsius
  3. device for measuring heat changes
  4. Heat released during a chemical reaction in which one mole of a substance is completely burned
  5. the remainder of the universe that is outside the system
  6. measurement of heat changes for physical and chemical processes
  7. Energy stored within the structural units of chemical substances
  8. quantity of heat required to change an object's temperature by exactly 1 degree Celsius
  9. heat, in joules or calories, released by 1 mole of a substance as it changes from a liquid to a solid a the solid's melting point.
  10. A chemical equation the includes the amount of heat produced or absorbed during the reaction
  11. energy that is transferred from one body to another because of a temperature difference
  12. A heat-absorbing process
  13. capacity for doing work, it exists in several forms including chemical , nuclear electrical, radiant, mechanical, and thermal energies
  14. quantity of heat the raises temperature of 1g of pure H2O 1 degree Celsius

27 Clues: A heat-absorbing process • a heat-dissipating process • device for measuring heat changes • The totality of all existing things • Study of heat changes in chemical reactions • SI unit of energy; 4.184J equal one calorie • heat content of a system at constant pressure • the remainder of the universe that is outside the system • ...

Biology Unit 1.3 2022-12-13

Biology Unit 1.3 crossword puzzle
Across
  1. weak acid that react with strong acids or bases to prevent sharp, sudden changes in pH
  2. compound that releases OH- (hydroxyl) ions in solution
  3. all of the chemical reactions that occur within an organism to maintain life
  4. ability to move or change matter
  5. ____ reaction: process that changes or transforms one set of chemicals into another
  6. ____ inhibition: attach to an allosteric site and changes the shape of the enzyme therefore changing the shape of the active site
  7. ____ sites: pockets in the folds on enzyme surfaces where the substrate binds.
Down
  1. ____ reactions: chemical reactions that absorb energy
  2. substance that speeds the rate of the reaction by lowering the activation energy
  3. substance which an enzyme acts during a chemical reaction to help lower activation energy
  4. ____ inhibition: molecules sit in the active site of the enzyme and prevent the entry of the substrate
  5. compound that releases (donates) H+ ions in solution
  6. ____ energy starts reaction
  7. ____ reactions: chemical reactions that release energy

14 Clues: ____ energy starts reaction • ability to move or change matter • ____ reactions: chemical reactions that absorb energy • compound that releases (donates) H+ ions in solution • compound that releases OH- (hydroxyl) ions in solution • ____ reactions: chemical reactions that release energy • all of the chemical reactions that occur within an organism to maintain life • ...

Structures and Changes Vocabulary 2013-12-17

Structures and Changes Vocabulary crossword puzzle
Across
  1. the # of protons and neutrons in the nucleus
  2. a substance that is made up of only one kind of atom
  3. horizontal rows on the periodic table that are organized by atomic #
  4. a characteristic that enables a substance to undergo a chemical change. Ex: flammability
  5. when more than one atom chemically combines
  6. first to discover atoms
  7. greek word means indivisible
  8. a characteristic that can be observed or measured. Ex: texture
  9. materials that are needed to start the chemical reaction
  10. smallest unit of an element
  11. neutral and in the nucleus
  12. when two or more substances chemically combine and form a new substance
  13. vertical columns on the periodic table that are organized by similar properties
Down
  1. positive and is in the nucleus
  2. the amount of matter in a chemical reaction does not change, so the total mass of the reactants must equal the total mass of the products
  3. negative and goes around the nucleus
  4. new substances that are made during the reaction
  5. the process of one or more substances converting to form new substances with different properties
  6. a substance that is made of two or more elements chemically combined. Can only be broken apart by chemical reaction
  7. center of an atom that contains protons and neutrons
  8. alters the form of a substance but does not change it into a new substance with new properties

21 Clues: first to discover atoms • neutral and in the nucleus • smallest unit of an element • greek word means indivisible • positive and is in the nucleus • negative and goes around the nucleus • when more than one atom chemically combines • the # of protons and neutrons in the nucleus • new substances that are made during the reaction • ...

Structures and Changes Vocabulary 2013-12-17

Structures and Changes Vocabulary crossword puzzle
Across
  1. when two or more substances chemically combine and form a new substance
  2. when more than one atom chemically combines
  3. alters the form of a substance but does not change it into a new substance with new properties
  4. positive and is in the nucleus
  5. a substance that is made of two or more elements chemically combined. Can only be broken apart by chemical reaction
  6. a characteristic that can be observed or measured. Ex: texture
  7. smallest unit of an element
  8. neutral and in the nucleus
  9. negative and goes around the nucleus
Down
  1. a characteristic that enables a substance to undergo a chemical change. Ex: flammability
  2. first to discover atoms
  3. greek word means indivisible
  4. vertical columns on the periodic table that are organized by similar properties
  5. the amount of matter in a chemical reaction does not change, so the total mass of the reactants must equal the total mass of the products
  6. a substance that is made up of only one kind of atom
  7. the # of protons and neutrons in the nucleus
  8. new substances that are made during the reaction
  9. the process of one or more substances converting to form new substances with different properties
  10. materials that are needed to start the chemical reaction
  11. center of an atom that contains protons and neutrons
  12. horizontal rows on the periodic table that are organized by atomic #

21 Clues: first to discover atoms • neutral and in the nucleus • smallest unit of an element • greek word means indivisible • positive and is in the nucleus • negative and goes around the nucleus • when more than one atom chemically combines • the # of protons and neutrons in the nucleus • new substances that are made during the reaction • ...

Chemistry Vocab 2019-12-02

Chemistry Vocab crossword puzzle
Across
  1. A type of chemical reaction in which a single compound breaks down into two or more elements or new compounds
  2. Type of bond where two atoms share a pair of electrons
  3. Substances being held together by attraction of atoms
  4. A type of chemical bond formed between positively charged atoms in which the free electrons are shared among a lattice of cations
  5. A formula giving each of the elements in one molecule a specific compound
  6. A set of rules to generate systematic names for chemical compounds
  7. Compound where the atoms share electrons through covalent bonds
  8. An exothermic reaction in which something reacts with oxygen
  9. Complete transfer of valence electrons between atoms
  10. A primarily electrostatic force of attraction between a hydrogen atom which is covalently bound to a more electronegative atom or group
  11. A chemical compound composed of ions held together by electrostatic forces
  12. A solid chemical compound consisting of an ionic assembly of cations and anions
  13. Tells us the number of atoms of each element in a compound
  14. A type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound
  15. The ability of a substance, usually a metal, to be deformed or molded into a different shape
  16. Describes the degree of oxidation of an atom in a chemical compound
  17. A chemical reaction where the reactants form products that, in turn, react together to give the reactants back
  18. Bond where the electrons are unequally distributed
  19. Formula which shows the arrangement of atoms in the molecule of a compound
  20. Refers to the separation of charges within a molecule between two covalently bonded atoms or atoms that share an ionic bond
  21. The symbolic representation of a chemical reaction in the form of symbols and formulas
  22. A way of describing the bonding in certain molecules or ions by the creation of line structures
  23. A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms
  24. The physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking
  25. Notation where only valence electrons of an atom are shown, indicated by dots
  26. Type of bond where a pair of electrons are unequally shared between two atoms
  27. The sum of the atomic weights of the atoms in the empirical formula of the compound
  28. Chemical bond where two or more electron pairs are shared between two atoms
  29. A constant term related to the properties of a product
  30. Amount of energy required to break apart a mole of molecules into its component atoms
Down
  1. A type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
  2. Sharing of electron pair between atoms
  3. A temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles
  4. Same as Lewis Structure
  5. A charged ion composed of two or more atoms covalently bonded
  6. Chemical decomposition produced by passing an electric current through a liquid or solution containing ions
  7. A visual representation of a reaction using chemical formulas
  8. Chemical bond where one pair of electrons is shared between two atoms
  9. Where two or more chemical species combine to form a more complex product
  10. A series of metals, in order of reactivity from highest to lowest
  11. The result of a model which combines atomic orbitals on a single atom in ways that lead to a new set of orbitals
  12. The charge that atom would have if the compound was composed of ions
  13. Consian ion with the generic formula A. xO z− ysting of one atom
  14. A substance composed of exactly two different elements, which are substances that cannot be simplified further by chemical means
  15. The empirical formula of any ionic or covalent compound
  16. The percentage by mass of each element in a compound
  17. An insoluble solid that emerges from a liquid solution
  18. Happens when atomic orbitals mix to form a new atomic orbital
  19. An ion with the generic formula A. xO z− y
  20. Group of atoms bonded together
  21. A chemical reaction expressed in words rather than chemical formulas
  22. The energy required to separate a mole of an ionic solid into gaseous ions
  23. Acronym for Valence Shell Electron Pair Repulsion theory

53 Clues: Same as Lewis Structure • Group of atoms bonded together • Sharing of electron pair between atoms • An ion with the generic formula A. xO z− y • Bond where the electrons are unequally distributed • Complete transfer of valence electrons between atoms • The percentage by mass of each element in a compound • Substances being held together by attraction of atoms • ...

Lesson 4 Vocab Crossword 2024-10-16

Lesson 4 Vocab Crossword crossword puzzle
Across
  1. crystals that are considered more valuable than others.
  2. molecules that are arranged in long chains of lots of repeating small molecules.
  3. potential for hydrogen. Expressed as the numbers 1-14.
  4. the substances that you start with when a chemical change is taking place
  5. a type of reaction that occurs when a substance changes form or shape, but still keeps its same molecular structure.
Down
  1. a chemical reaction that takes in heat
  2. a substance with a pH of 7.
  3. a substance that speeds up the chemical reaction
  4. a chemical reaction that gives off heat
  5. a type of reaction that occurs when two or more substances interact with each other and change into a different substance.
  6. a solid that has a regular, repeating arrangement of atoms.

11 Clues: a substance with a pH of 7. • a chemical reaction that takes in heat • a chemical reaction that gives off heat • a substance that speeds up the chemical reaction • potential for hydrogen. Expressed as the numbers 1-14. • crystals that are considered more valuable than others. • a solid that has a regular, repeating arrangement of atoms. • ...

Biology 30 Crossword 2014-09-25

Biology 30 Crossword crossword puzzle
Across
  1. A type of nitrogen base in nucleotides that have two rings as part of their structure.
  2. Regions on the surface of enzymes that fit the substrate.
  3. Bonds holding a protein molecule are disrupted, causing a permanent change in shape.
  4. Bonds holding a protein molecule are disrupted by physical or chemical means, causing a temporary change in shape.
  5. the type of bond that holds together proteins.
  6. Made up of nucleotides.
  7. Proteins that speed up chemical reactions.
  8. made up of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur.
Down
  1. Always pairs with cytosine.
  2. Has ribose sugar, can leave the nucleus.
  3. A substance that enzymes act upon.
  4. The amount of energy needed for a chemical reaction to occur.
  5. Has deoxyribose sugar, stays in the nucleus.
  6. Another name for proteins.
  7. Substance formed from the substrate at the end of a chemical reaction with an enzyme.
  8. Composed of a five carbon sugar, a phosphate molecule and a nitrogen base.
  9. Made up of an amino acid group and an acid group.
  10. Bind to active sites and prevent substrates from binding.
  11. A substance that brings out a chemical reaction without being changed itself.
  12. Always pairs with thymine.
  13. A type of enzyme that works on sucrose.

21 Clues: Made up of nucleotides. • Another name for proteins. • Always pairs with thymine. • Always pairs with cytosine. • A substance that enzymes act upon. • A type of enzyme that works on sucrose. • Has ribose sugar, can leave the nucleus. • Proteins that speed up chemical reactions. • Has deoxyribose sugar, stays in the nucleus. • the type of bond that holds together proteins. • ...

Chapter 7 2023-01-09

Chapter 7 crossword puzzle
Across
  1. compound made up solely of carbon and hydrogen
  2. Energy stored in the bonds of chemical compounds
  3. equire an input of energy in the form of heat, light, or electricity
  4. a multiplier or factor that measures some property
  5. species formed from chemical reactions process that involves rearrangement of the molecular or ionic structure of a substance
  6. chemical reaction that absorbs heat from its environment
  7. reaction in which one element is substituted for another element in a compound
  8. a list of reactants on the left and arrow symbol a list of products on the right
Down
  1. the positive and negative ions of two ionic compounds exchange places to form two new compounds
  2. reactions that occur when two different atoms or molecules interact to form a different molecule or compound
  3. any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron
  4. something undergoes change during a reaction
  5. chemical reaction in which less energy is needed to break bonds in the reactants than is released when new bonds form in the products.
  6. a standard scientific unit for measuring large quantities of very small entities such as atom
  7. ratio between the mass and the amount of substance (measured in moles)

15 Clues: something undergoes change during a reaction • compound made up solely of carbon and hydrogen • Energy stored in the bonds of chemical compounds • a multiplier or factor that measures some property • chemical reaction that absorbs heat from its environment • equire an input of energy in the form of heat, light, or electricity • ...

Sigma puzzle 2024-10-04

Sigma puzzle crossword puzzle
Across
  1. tiny openings present on the epidermis of leaves
  2. the cycle of enzyme-catalyzed dark reactions of photosynthesis that occurs in the chloroplasts of plants
  3. Glocose
  4. a form of electromagnetic radiation.
  5. Carbon
  6. O2
  7. a substance that is present at the end of a chemical reaction.
Down
  1. Water
  2. a substance that changes in a chemical reaction.
  3. The process by which organisms transform light energy into chemical energy.
  4. responsible for photosynthesis,
  5. H2O
  6. CO2
  7. C6H12O6
  8. Oxygen

15 Clues: O2 • H2O • CO2 • Water • Carbon • Oxygen • Glocose • C6H12O6 • responsible for photosynthesis, • a form of electromagnetic radiation. • a substance that changes in a chemical reaction. • tiny openings present on the epidermis of leaves • a substance that is present at the end of a chemical reaction. • The process by which organisms transform light energy into chemical energy. • ...

Rates of Reaction and Energy 2014-03-29

Rates of Reaction and Energy crossword puzzle
Across
  1. reactions where products can turn back into reactants (10)
  2. an exothermic reaction that happens when fuels react with oxygen (10)
  3. a chemical, usually a transition metal, that helps reactants to react, without being used up (8)
  4. a endothermic reaction that happens when you heat chemicals to get them to break down (6,13)
  5. name for biological catalyst (6)
  6. type of reaction the takes in energy from the surroundings (11)
  7. an exothermic reaction in the body (11)
  8. these cans use exothermic reactions to heat in coffee or tea (4,7)
  9. how exothermic reactions feel
  10. what particles need to do before they can react (6)
Down
  1. by increasing this you increase the amount of collisions (7,4)
  2. name for a chemical that doesn't have water in it (9)
  3. increasing this means the reactant particle have more energy (11)
  4. increasing this in liquids means collisions happen more often (13)
  5. the amount of energy needed to get a reaction to start (10)
  6. increasing this in reaction with gases makes them react faster (8)
  7. these use endothermic reactions to help injuries (4,5)
  8. type of reaction that releases heat energy (10)
  9. how endothermic reactions feel (4)

19 Clues: how exothermic reactions feel • name for biological catalyst (6) • how endothermic reactions feel (4) • an exothermic reaction in the body (11) • type of reaction that releases heat energy (10) • what particles need to do before they can react (6) • name for a chemical that doesn't have water in it (9) • these use endothermic reactions to help injuries (4,5) • ...

Atoms and Bonding 2021-10-26

Atoms and Bonding crossword puzzle
Across
  1. Group 1. Solids with only 1 valence electron
  2. The smallest unit of matter
  3. The force of attraction that holds two atoms together
  4. A type of bond resulting from the attraction between positive and negative ions
  5. A reaction where energy is released, more bonds are broken, and the surroundings are hot
  6. A type of reaction where one element replaces another
  7. A positively charged particle found in the nucleus
  8. An atom or a group of atoms that has an electric charge
  9. What you start with in a reaction
  10. A bond that forms when atoms share electrons
  11. A negatively charged particle surrounding the nucleus
  12. A substance made up of two or more elements
  13. A metal that has the ability to form thin sheets is considered...
  14. A type of reaction where multiple reactants form a single product
  15. A neutrally charged particle found in the nucleus
  16. Group 18. Unreactive gases often used for bright lights in signs
  17. The temperature at which something melts
Down
  1. A metal that has the ability to form thin wires is considered...
  2. Group 17. Gases that all have 7 valence electrons
  3. The amount of energy needed for a chemical reaction to take place
  4. The law that states that matter can neither be created or destroyed in a chemical reaction
  5. A solid that forms when two solutions are mixed
  6. An electron found in the outermost layer is called a...
  7. A single type of an atom. All atoms in this category have the same number of protons
  8. A type of covalent bond with unequal sharing of electrons
  9. A chemical that speeds up a reaction
  10. A bond that forms between two metals
  11. A tiny, positively charged region at the center of the atom
  12. What you end with in a reaction
  13. A reaction where energy is absorbed, more bonds are formed, and the surroundings get cold
  14. A type of covalent bond with equal sharing of electrons
  15. A type of reaction where one reactant breaks down into multiple products
  16. A type of reaction that always produces water and carbon dioxide

33 Clues: The smallest unit of matter • What you end with in a reaction • What you start with in a reaction • A chemical that speeds up a reaction • A bond that forms between two metals • The temperature at which something melts • A substance made up of two or more elements • Group 1. Solids with only 1 valence electron • A bond that forms when atoms share electrons • ...

Biology Chapter 2.5 Crossword by Jerome 2021-09-17

Biology Chapter 2.5 Crossword by Jerome crossword puzzle
Across
  1. The substances changed during a chemical reaction
  2. A type of enzyme in saliva that only breaks down startch into simple sugar
  3. The substances made by a chemical reaction
  4. the amount of energy that needs to be absorbed for a chemical reaction to start
  5. Enzymes just change the amount of ________ needed for equilibrium to be reached
  6. All enzymes are ________
Down
  1. The specific reactants that an enzyme acts on are called ________
  2. Catalysts for chemical reactions in living things
  3. A substance that decreases the activation energy needeed to start a chemical reaction. As a result, increases the rate of the chemical reaction
  4. Enzymes break down food particles in your ________ system.

10 Clues: All enzymes are ________ • The substances made by a chemical reaction • Catalysts for chemical reactions in living things • The substances changed during a chemical reaction • Enzymes break down food particles in your ________ system. • The specific reactants that an enzyme acts on are called ________ • ...

Amaya 2.1 vocab 2021-10-26

Amaya 2.1 vocab crossword puzzle
Across
  1. chemical reaction that gives of heat
  2. the substance present before a chemical reaction
  3. a chemical reaction that absorbs heat energy
  4. a chemical reaction
Down
  1. a chemical change
  2. the result of 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 • the result of chemical reaction • chemical reaction that gives of heat • a chemical reaction that absorbs heat energy • the substance present before a chemical reaction

Chemistry Unit Test Review 2014-03-09

Chemistry Unit Test Review crossword puzzle
Across
  1. When energy is released, bonds are _____________
  2. The reactants are different from the products in a ________change
  3. Energy was absorbed to ________ bonds
  4. A phase change is a type of
  5. When put into water, acids release _________ ions.
  6. Energy is transferred from the surroundings to the reactants in an _____________ reaction
  7. In an exothermic reaction, energy is _________ from the reactants and is __________ into the surroundings.
  8. Energy is released to _________ bonds
Down
  1. In a combustion reaction, the products always have _______.
  2. A solution that has a pH above 7 is a ______
  3. When hydronium, H3O+ and hydroxide, OH- react what is produced is ______________
  4. In a chemical reaction the atoms will be
  5. This type of paper indicator gives the specific pH
  6. When bases are put in water, they release _____________ ions.
  7. When acids and bases neutralize they produce a _________
  8. Chemical energy is energy that is present in _____________

16 Clues: A phase change is a type of • Energy was absorbed to ________ bonds • Energy is released to _________ bonds • In a chemical reaction the atoms will be • A solution that has a pH above 7 is a ______ • When energy is released, bonds are _____________ • This type of paper indicator gives the specific pH • When put into water, acids release _________ ions. • ...

8.1 Chemical Reactions 2023-05-15

8.1 Chemical Reactions crossword puzzle
Across
  1. a stable subatomic particle occurring in all atomic nuclei
  2. mass divided by volume
  3. is the state or power of being reactive
  4. composition of 2 or more separate elements.
  5. form to make molecules
  6. The energy is stored in the bonds of chemical compounds,
  7. a characteristic of matter that may be observed and measured without changing the chemical identity of a sample.
  8. Part of an experiment and is made of molecules
  9. List of Elements
  10. substances used in experiments
  11. The notation for an element on the periodic table
  12. The average mass of the atom of an element
  13. The number of protons
  14. mass divided by density
Down
  1. The ability to conduct or transmit something like heat, sound, or electricity.
  2. A form of energy that an object has due to its motion.
  3. chemical reaction that absorbs heat
  4. Result of chemical reaction
  5. Substance that makes up everything
  6. Irreversible
  7. is a stable subatomic particle with a charge of negative electricity
  8. Shell the outer part of an atom that surrounds the atomic nucleus.
  9. Quality/trait synonym
  10. is a subatomic particle of about the same mass as a proton but without an electric charge
  11. chemical reaction that produces heat
  12. density times volume
  13. adding one substance with another, and making a new solution

27 Clues: Irreversible • List of Elements • density times volume • Quality/trait synonym • The number of protons • mass divided by volume • form to make molecules • mass divided by density • Result of chemical reaction • substances used in experiments • Substance that makes up everything • chemical reaction that absorbs heat • chemical reaction that produces heat • ...

Noelia's Crossword about Particle Behaviour 2024-10-24

Noelia's Crossword about Particle Behaviour crossword puzzle
Across
  1. a substance made by combining other substances together
  2. What is the amount of force applied to an object
  3. What is on the periodic table?
  4. For a chemical reaction to occur there must be particles that collide with each other
  5. What is the name for the smallest portion of matter?
  6. A change you can see
  7. Laws that relate to the pressure, volume, and temperature of a gas
  8. Two substances that mix really well
  9. What is the amount of space an object occupies
  10. When things are close together
  11. The process where any phase dissolves in a solvent to form a solution
Down
  1. Two substances that don't mix well
  2. the movement of molecules in a fluid form areas of high to low concentration
  3. What is the speed at which a chemical reaction takes place
  4. What changes when it becomes hot or cold
  5. A substance that increases the chemical reaction without any permanent chemical change
  6. The law that states that all temp, pressure, and volume all gasses contain the same number of molecules.
  7. The minimum amount of energy to activate atoms or molecules to undergo chemical transformation
  8. A change in materials into another
  9. What is something that is made from 2 or more different elements that have been chemically joined.

20 Clues: A change you can see • What is on the periodic table? • When things are close together • Two substances that don't mix well • A change in materials into another • Two substances that mix really well • What changes when it becomes hot or cold • What is the amount of space an object occupies • What is the amount of force applied to an object • ...

Chemical Reaction Crossword! 2021-05-21

Chemical Reaction Crossword! crossword puzzle
Across
  1. when a complex substance breaks down into simpler substances
  2. the chemical formula for carbon dioxide
  3. The quantity of something(measured by weight)
  4. the letters and numbers that make up a substance
  5. when two substances combine to make a more complex substance
Down
  1. substances that are added together to make a new substance
  2. ensuring both sides are equal
  3. a substance made up of multiple different elements
  4. A very small particle
  5. when two substances mix, this is the by-product

10 Clues: A very small particle • ensuring both sides are equal • the chemical formula for carbon dioxide • The quantity of something(measured by weight) • when two substances mix, this is the by-product • the letters and numbers that make up a substance • a substance made up of multiple different elements • substances that are added together to make a new substance • ...

Chemical Reaction Crossword 2025-09-23

Chemical Reaction Crossword crossword puzzle
Across
  1. basic building block of matter
  2. FE is the symbol for _______
  3. smooth and uniform mixture
  4. the classes favorite 2 numbers
  5. two diffrent types of atoms chemically combined
  6. ________ equal reactants
Down
  1. not evenly mixed
  2. _______ cannot be created nor destroyed
  3. in Mr.Hawley's class we are always ________
  4. the law of _______________ of mass

10 Clues: not evenly mixed • ________ equal reactants • smooth and uniform mixture • FE is the symbol for _______ • basic building block of matter • the classes favorite 2 numbers • the law of _______________ of mass • _______ cannot be created nor destroyed • in Mr.Hawley's class we are always ________ • two diffrent types of atoms chemically combined

thermochemistry 2015-04-21

thermochemistry crossword puzzle
Across
  1. energy an object possesses due to its motion
  2. is a unit of thermal energy equal to 4.184 joules
  3. energy that can be absorbed or released during a chemical reaction. It may also change during a phase transition.
  4. A form of energy that flows between two samples of matter because of their differences in temperature.
  5. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
  6. A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.
  7. is the amount of heat energy required to raise the temperature of a body per unit of mass.
  8. states that the total energy of an isolated system remains constant—it is said to be conserved over time.
Down
  1. is the basic SI unit of energy
  2. energy which an object has because of its position.
  3. is a device used to measure the heat flow of a chemical reaction or physical change.
  4. the amout of heat adsorbed of heat lost by one mole of a soild substance as it melts to a liquid
  5. the amount change caused by the dissolution of one mole
  6. Reaction that absorbs heat from its surroundings as the reaction proceeds.
  7. is any reaction that releases or gives off energy during the reaction
  8. the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions.
  9. is a thermdynamic property of a system
  10. that can be absorbed or released during a chemical reaction. It may also change during a phase transition.

18 Clues: is the basic SI unit of energy • is a thermdynamic property of a system • energy an object possesses due to its motion • is a unit of thermal energy equal to 4.184 joules • energy which an object has because of its position. • the amount change caused by the dissolution of one mole • is any reaction that releases or gives off energy during the reaction • ...

Unit 3 Terms 2017-10-15

Unit 3 Terms crossword puzzle
Across
  1. Reaction that absorbs energy from the surroundings.
  2. Mass of exactly 1 mol of a chemical (2 words)
  3. The chemical that lost electrons in a chemical reaction was ___________.
  4. An element reacts with a compound resulting in a new element and a new compound. (2 words).
  5. A measure of the concentration of a solution.
Down
  1. A type of chemical reaction in which one of the reactants is molecular oxygen.
  2. There are 6.022 times 1023 particles in one __________ particles.
  3. A reaction in which a single reactant forms two or more products.
  4. We balance a chemical equation by using the smallest, whole number ____________.
  5. A chemical used up during the reaction.

10 Clues: A chemical used up during the reaction. • Mass of exactly 1 mol of a chemical (2 words) • A measure of the concentration of a solution. • Reaction that absorbs energy from the surroundings. • There are 6.022 times 1023 particles in one __________ particles. • A reaction in which a single reactant forms two or more products. • ...

Chemistry Terms 2013-03-25

Chemistry Terms crossword puzzle
Across
  1. the chemicals made by a chemical reaction
  2. the breaking down of a chemical compound or breaking chemical bonds (using water)
  3. breaking down glucose in the presence of oxygen to make carbon dioxide water and energy
  4. adenosine combined with three phosphates
  5. what is dissolved into a liquid to make a solution
  6. the liquid that a solute is dissolved into
Down
  1. the energy that needs to be applied to get a chemical reaction started
  2. using energy from the sun plus water plus carbon dioxide to make glucose and water
  3. adding a phosphate group to a compound
  4. a combination of two or more chemicals or compounds
  5. proteins that speed up, start, or aid in chemical reactions (catylize)
  6. (example)using insulin to breakdown glucose
  7. a mixture that is composed of at least one liquid (usually water)
  8. the chemicals that cause a chemical reaction

14 Clues: adding a phosphate group to a compound • adenosine combined with three phosphates • the chemicals made by a chemical reaction • the liquid that a solute is dissolved into • (example)using insulin to breakdown glucose • the chemicals that cause a chemical reaction • what is dissolved into a liquid to make a solution • a combination of two or more chemicals or compounds • ...

Lesson 2: Chemical Reactions 2023-10-25

Lesson 2: Chemical Reactions crossword puzzle
Across
  1. protein that speeds up a chemical reaction in a biological process
  2. substance formed during a chemical reaction
  3. series of steps or actions that produces an end product
  4. substance that lowers the activation energy needed for reactants to form products in a chemical reaction
  5. Number in front of a reactant or a product in a chemical equation
  6. reactant that bind to an enzyme
Down
  1. process by which atoms or groups of atoms in substances are reorganized into different substances
  2. location where a substrate binds on an enzyme
  3. minimum amount of energy needed for reactants to form products in a chemical reaction
  4. starting substance in a chemical reaction

10 Clues: reactant that bind to an enzyme • starting substance in a chemical reaction • substance formed during a chemical reaction • location where a substrate binds on an enzyme • series of steps or actions that produces an end product • Number in front of a reactant or a product in a chemical equation • protein that speeds up a chemical reaction in a biological process • ...

Biology 30 Crossword 2014-09-25

Biology 30 Crossword crossword puzzle
Across
  1. A substance that brings out a chemical reaction without being changed itself.
  2. made up of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur.
  3. Has ribose sugar, can leave the nucleus.
  4. the type of bond that holds together proteins.
  5. Bind to active sites and prevent substrates from binding.
  6. Made up of nucleotides.
  7. The amount of energy needed for a chemical reaction to occur.
  8. A type of enzyme that works on sucrose.
  9. Has deoxyribose sugar, stays in the nucleus.
  10. Proteins that speed up chemical rections
Down
  1. Substance formed from the substrate at the end of a chemical reaction with an enzyme.
  2. Regions on the surface of enzymes that fit the substrate.
  3. Made up of an amino acid group and an acid group.
  4. Another name for proteins.
  5. Bonds holding a protein molecule are disrupted, causing a permanent change in shape.
  6. Bonds holding a protein molecule are disrupted by physical or chemical means, causing a temporary change in shape.
  7. Composed of a five carbon sugar, a phosphate molecule and a nitrogen base.
  8. A type of nitrogen base in nucleotides that have two rings as part of their structure.
  9. A substance that enzymes act upon.
  10. Always pairs with thymine.
  11. Always pairs with cytosine.

21 Clues: Made up of nucleotides. • Another name for proteins. • Always pairs with thymine. • Always pairs with cytosine. • A substance that enzymes act upon. • A type of enzyme that works on sucrose. • Has ribose sugar, can leave the nucleus. • Proteins that speed up chemical rections • Has deoxyribose sugar, stays in the nucleus. • the type of bond that holds together proteins. • ...