chemical reaction Crossword Puzzles

Chemistry Crossword Puzzle 2020-05-29

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

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

Chapter 2 Crossword - Tyler Smith 2018-10-01

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

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

CHemistry Vocab. 221 2021-01-26

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

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

Chemistry 2021-01-25

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

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

Chemistry Vocabulary 2021-01-25

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

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

Chemistry PC 252 vocab 2021-01-26

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

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

Biomolecules & Enzymes Crosswords 2024-05-01

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

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

Energy 2016-05-09

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

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

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

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

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

Reactions 2012-11-19

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

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

Chemistry 2013-03-25

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

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

Energetics Topic 5 2021-03-09

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

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

Unit-3 2023-05-18

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

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

Quarter 3 Chemistry Vocabulary 2025-03-11

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

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

Crossword puzzzle 2021-01-27

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

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

Biomolecules & Enzymes Crosswords 2024-05-01

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

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

Chemical kinetics 2022-02-24

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

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

Science 2013-12-19

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

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

Chemistry PC 252 2021-01-25

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

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

8.5D Chemical Symbols, Formulas, Coefficienct and Subscripts 2022-09-20

8.5D Chemical Symbols, Formulas, Coefficienct and Subscripts crossword puzzle
Across
  1. Any substance made up of identical molecules consisting of 2 or more elements.
  2. A form of matter having a constant chemical composition and constant characteristic properties.
  3. The basic unitof a chemical element.
  4. A substance to the right of the chemical equation. This is present at the end of a chemical reaction.
  5. a substance made up of only 1 type of atom, all with the same number of protons.
Down
  1. A group of atoms bonded together, the smallest unit of a chemical compound that can take part in a chemical reaction.
  2. Represents a symbolic chemical reaction in the form of chemical formulas where you have reactants and products.
  3. A set of chemical symbols showing the elements in a compound.
  4. A substance that is present at the start of a chemical reaction. they are to the left of a chemical equation.
  5. a table that displays important scientific information.
  6. Numbers in a chemical formula that tell you the number of Atoms of an element.

11 Clues: The basic unitof a chemical element. • a table that displays important scientific information. • A set of chemical symbols showing the elements in a compound. • Any substance made up of identical molecules consisting of 2 or more elements. • Numbers in a chemical formula that tell you the number of Atoms of an element. • ...

Science 2013-12-19

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

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

Science 2013-12-19

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

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

Science 2013-12-19

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

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

Unit 5: Gases 2022-03-29

Unit 5: Gases crossword puzzle
Across
  1. A measurement of the amount of gas particles
  2. @STP 1 mol of gases equals this volume(in liters).
  3. STP(Temp = 273K, Pressure = 1.0 atm)
  4. these types of gases do not exist naturally, because they require conditions to be constant.
  5. The individual pressure exerted by a gas in a mixture.
  6. P1V1 = P2V2
  7. Amount of energy required for a chemical reaction to take place.
  8. relationship between volume and temperature.
  9. Distance between gas particles
Down
  1. P(total) = P1 + P2 + P3
  2. Collision of gas particles against a surface.
  3. Rounded value for the universal gas constant(R).
  4. "Energy is being absorbed, therefore, the reaction feels cold."
  5. can be found by taking the moles of an individual gas, and dividing it by the total number of moles in the sample.
  6. Substance that speeds up a chemical reaction, by lowering the activation energy.
  7. "Energy is being released. Therefore, the reaction feels hot."
  8. V1/T1 = V2/V2
  9. represents the overall change in thermal energy. If positive, the reaction is endothermic. If negative, the reaction is exothermic.
  10. relationship between pressure and volume.
  11. Movement between atoms (kinetic energy)
  12. PV = nRT

21 Clues: PV = nRT • P1V1 = P2V2 • V1/T1 = V2/V2 • P(total) = P1 + P2 + P3 • Distance between gas particles • STP(Temp = 273K, Pressure = 1.0 atm) • Movement between atoms (kinetic energy) • relationship between pressure and volume. • A measurement of the amount of gas particles • relationship between volume and temperature. • Collision of gas particles against a surface. • ...

Jordan Ruby-Chapter 13 2021-12-01

Jordan Ruby-Chapter 13 crossword puzzle
Across
  1. a type of chemical reaction represented by AB+CD-->AD+CB (2 words)
  2. a type of chemical reaction represented by AB-->A+B
  3. the releasing of energy
  4. any compound above a 7 on the PH scale
Down
  1. a law stating mass can not be created or destroyed (3 words)
  2. a type of chemical reaction represented by AB+C-->AC+B (2 words)
  3. the absorbing of energy
  4. a type of chemical reaction represented by AB+Oxegen-->Oxides of A&B
  5. any compound below a 7 on the PH scale
  6. a type of chemical reaction represented by A+B-->AB

10 Clues: the absorbing of energy • the releasing of energy • any compound below a 7 on the PH scale • any compound above a 7 on the PH scale • a type of chemical reaction represented by A+B-->AB • a type of chemical reaction represented by AB-->A+B • a law stating mass can not be created or destroyed (3 words) • a type of chemical reaction represented by AB+C-->AC+B (2 words) • ...

Chapter 7 - Chemical Reactions 2016-04-21

Chapter 7 - Chemical Reactions crossword puzzle
Across
  1. a compound breaks down into 2 or more simpler substances.
  2. a process in which the substances exposure to each other increases
  3. a reaction where forming bonds releases energy to the surroundings.
  4. a substance reacts rapidly with oxygen.
  5. Numbers that appear before a formula to show the relative proportions of each reactant and products.
  6. Mass is neither created nor destroyed during a chemical reaction.
  7. two different compounds exchange positive ions and form two new compounds.
  8. substance that increases the reaction rate without being used up in the reaction.
  9. the number of particles in a given volume of solution is called this
  10. a reaction where breaking bonds requires energy and it absorbs energy from the surroundings.
Down
  1. The new substance formed as a result of a change.
  2. faster molecular motion causes rate of reaction to increase
  3. The mass of the products if always equal to the mass of the reactants.
  4. total energy before a reaction equals the total energy after a reaction.
  5. the amount of surface available on a substance by crushing it or breaking it
  6. two or more substances react to form a single substance.
  7. Representation of a chemical reaction in which the reactants and products are expressed as formulas.
  8. one element takes the place of another in a compound.
  9. The substances that undergo change.

19 Clues: The substances that undergo change. • a substance reacts rapidly with oxygen. • The new substance formed as a result of a change. • one element takes the place of another in a compound. • two or more substances react to form a single substance. • a compound breaks down into 2 or more simpler substances. • faster molecular motion causes rate of reaction to increase • ...

Chemical Reactions Vocabulary 2023-03-28

Chemical Reactions Vocabulary crossword puzzle
Across
  1. Compound of cobalt has ___ colour
  2. One observation of reaction (rapid bubbles)
  3. A substance that does not dissolve in water
  4. A substance that undergoes a chemical change
  5. Law of _______ of mass
Down
  1. Most chemical changes can not be undone, they are____
  2. During a chemical reaction what happens to the atoms
  3. Any reaction that involves burning
  4. These are tiny suspended solid particles
  5. A new substance that forms in a chemical reaction

10 Clues: Law of _______ of mass • Compound of cobalt has ___ colour • Any reaction that involves burning • These are tiny suspended solid particles • One observation of reaction (rapid bubbles) • A substance that does not dissolve in water • A substance that undergoes a chemical change • A new substance that forms in a chemical reaction • ...

Rates of reaction 2023-07-12

Rates of reaction crossword puzzle
Across
  1. When nothing can enter or leave a a reaction is taking place
  2. A substance which speeds up a reaction without being used up
  3. A salt which has no water trapped in it
  4. A reaction which takes in heat energy from the surroundings
  5. A straight line drawn on the curve of a graph
  6. When the rate of the forward and reverse reactions are equal
  7. Describes the number of particles per unit volume
  8. A reaction which can go both forwards and backwards
  9. How much space something occupies
  10. A reaction which gives out heat energy to the surroundings
  11. Minimum energy needed to start a reaction
Down
  1. Energy which particles have by moving
  2. Indicates how steep a straight line on a graph or tangent is
  3. A metal from the centre of the Periodic Table, often used as catalysts
  4. The amount of exposed surface on a solid
  5. The number of collisions per unit time
  6. States what particles need to react with one another
  7. An insoluble solid formed when several solutions react
  8. A measure of how much heat energy something has
  9. A force exerted by gases when the collide with a container
  10. The substances produced in a chemical reaction
  11. A measure of the amount of substance being used
  12. A biological catalyst
  13. The substances that react together in a chemical reaction

24 Clues: A biological catalyst • How much space something occupies • Energy which particles have by moving • The number of collisions per unit time • A salt which has no water trapped in it • The amount of exposed surface on a solid • Minimum energy needed to start a reaction • A straight line drawn on the curve of a graph • The substances produced in a chemical reaction • ...

Chemistry Chapter 5 2026-01-05

Chemistry Chapter 5 crossword puzzle
Across
  1. Energy of motion.
  2. A chemical reaction where a compound burns.
  3. A chemical reaction where one reactant breaks down into two products
  4. A compound that only contains carbon and hydrogen.
Down
  1. A chemical reaction where two reactants form one.
  2. A number to the left of the symbol of a substance in a chemical equation.
  3. A substance that is used up in a chemical reaction.
  4. Stored energy due to an objects position.
  5. A substance that is produced by the chemical reaction.

9 Clues: Energy of motion. • Stored energy due to an objects position. • A chemical reaction where a compound burns. • A chemical reaction where two reactants form one. • A compound that only contains carbon and hydrogen. • A substance that is used up in a chemical reaction. • A substance that is produced by the chemical reaction. • ...

Balancing Chemical Equations 2021-10-27

Balancing Chemical Equations crossword puzzle
Across
  1. Anything that has mass and takes up space.
  2. A set of ions, with an arrow in the middle, which symbolizes a chemical reaction.
  3. H₂SO₃
  4. An equation that correctly shows that nothing was created or destroyed in a reaction.
Down
  1. Substances present before a chemical reaction.
  2. An equation that has an unequal number of ions on both sides, showing something was created or destroyed.
  3. NH₄
  4. A list of chemical symbols showing the elements present in a compound.
  5. Substances created after a chemical reaction.
  6. In a chemical equation, the symbol that stands for the actual reaction.

10 Clues: NH₄ • H₂SO₃ • Anything that has mass and takes up space. • Substances created after a chemical reaction. • Substances present before a chemical reaction. • A list of chemical symbols showing the elements present in a compound. • In a chemical equation, the symbol that stands for the actual reaction. • ...

STAAR Review 2025-04-03

STAAR Review crossword puzzle
Across
  1. Speed with direction.
  2. This is what you get after the reactant in a chemical reaction.
  3. The number of moon phases.
  4. Sticks to self and others.
  5. Example of a chemical change
  6. Weather is cloudy and lingering rain
  7. Consists of one type of atom
  8. An example of this is physiological
Down
  1. Only found in a plant cell
  2. Power house
  3. The vacuole does this
  4. An objects resistance to movement
  5. One of the forms of energy.
  6. Earth spins on this imaginary line.
  7. Ph scale of 8 to 14.
  8. Identical to parent
  9. Example of a chemical reaction
  10. This system protects the body's exterior

18 Clues: Power house • Identical to parent • Ph scale of 8 to 14. • Speed with direction. • The vacuole does this • Only found in a plant cell • The number of moon phases. • Sticks to self and others. • One of the forms of energy. • Example of a chemical change • Consists of one type of atom • Example of a chemical reaction • An objects resistance to movement • ...

Chemistry crossword puzzle 2023-10-12

Chemistry crossword puzzle crossword puzzle
Across
  1. The end result of a chemical reaction.
  2. A chemical reaction in which a single element replaces another element in a compound.
  3. A chemical reaction in which two or more substances combine to form a new compound.
  4. A chemical reaction that involves a substance combining with oxygen to produce heat and light.
  5. A reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
  6. The order of reactivity of metals, showing which metals can displace others in a reaction.
Down
  1. A process that involves rearrangement of the molecular or ionic structure of a substance
  2. A reaction in which heat is added and a single compound breaks down into two or more simpler substances.
  3. The starting materials in a chemical reaction.

9 Clues: The end result of a chemical reaction. • The starting materials in a chemical reaction. • A chemical reaction in which two or more substances combine to form a new compound. • A chemical reaction in which a single element replaces another element in a compound. • A process that involves rearrangement of the molecular or ionic structure of a substance • ...

vocab words from that lab 2026-02-05

vocab words from that lab crossword puzzle
Across
  1. Chemical
  2. reaction
  3. Atom
  4. Periodic
  5. Element
Down
  1. Formula
  2. substance
  3. Mixture
  4. separated
  5. Compound

10 Clues: Atom • Formula • Mixture • Element • Chemical • Compound • reaction • Periodic • substance • separated

Physical and Chemical Change 2019-11-07

Physical and Chemical Change crossword puzzle
Across
  1. The substances formed in chemical reactions
  2. An increase in size
  3. Any chemical reaction where a substance burns in oxygen to produce light and heat
  4. A solid formed during a chemical change
  5. A change of state where a liquid is heated and changes to a gas within the liquid
  6. A change that does not result in a new substance being produced
  7. Evaporation of solvent from a solution to leave solute behind as crystals
  8. A change of state where a liquid changes to a gas at the surface of the liquid
  9. A decrease in size
Down
  1. The change of state when a solid is heated and forms a liquid
  2. The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun
  3. A change of state from gas to solid
  4. The starting substances in chemical reactions
  5. A simple chemical equation where chemicals are represented by their names
  6. The change of state from liquid to solid
  7. A change that results in a new substance being formed
  8. A chemcial reaction that converts oxygen and glucose into water and carbon dioxide while releasing energy.
  9. A change of state where a gas is cooled and forms a liquid

18 Clues: A decrease in size • An increase in size • A change of state from gas to solid • A solid formed during a chemical change • The change of state from liquid to solid • The substances formed in chemical reactions • The starting substances in chemical reactions • A change that results in a new substance being formed • A change of state where a gas is cooled and forms a liquid • ...

Chemical equations 2022-01-16

Chemical equations crossword puzzle
Across
  1. chemical equation is balanced when*is equal
  2. atoms are what instead of created
  3. can not be created nor destroyed
  4. Side before chemical reaction
  5. side after chemical reaction
  6. anything that takes up space
  7. name for the arrow
Down
  1. chemical equation doesn't have an equal # of atoms
  2. what the arrow represents
  3. when both sides are equal

10 Clues: name for the arrow • what the arrow represents • when both sides are equal • side after chemical reaction • anything that takes up space • Side before chemical reaction • can not be created nor destroyed • atoms are what instead of created • chemical equation is balanced when*is equal • chemical equation doesn't have an equal # of atoms

Food for Thought 2024-02-25

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

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

SCIENCE 1ST 9 WEEKS REVIEW-CHEMISTRY 2023-09-27

SCIENCE 1ST 9 WEEKS REVIEW-CHEMISTRY crossword puzzle
Across
  1. OUTER LEVEL ELECTRONS THAT BOND
  2. USUALLY ARE GASES
  3. ATOMIC NUMBER IS THE NUMBER OF
  4. CAN'T BE SEPARATED INTO OTHER SUBSTANCES
  5. ADD PROTONS AND NEUTRONS TO FIND ATOMIC
  6. SMALLEST SUBATOMIC PARTICLE
  7. IN A BALANCED ATOM, THE # OF PROTONS AND ELECTRONS IS THE
  8. ELECTRONS ARE FOUND IN THE
  9. CHARGE OF NEUTRONS
  10. RESULTS OF A CHEMICAL REACTION
  11. INGREDIENTS FOR A CHEMICAL REACTION
  12. HORIZONTAL ROWS ON THE PT
  13. MASS DIVIDED BY VOLUME
  14. HAVE SOME, BUT NOT ALL, METALLIC PROPERTIES
Down
  1. SMALLEST PIECE OF AN ELEMENT
  2. CHARGE OF ELECTRONS
  3. MOST ELEMENTS ARE THIS TYPE
  4. FORMED BY BONDING TWO OR MORE ELEMENTS IN A SET RATIO
  5. CHARGE OF PROTONS
  6. CONTAINS PROTONS AND NEUTRONS
  7. TABLE THAT LISTS ALL ELEMENTS
  8. ABLE TO BE FORMED INTO SHAPES
  9. REACTION THAT PRODUCES A NEW SUBSTANCE
  10. SHINY QUALITY OF METALS
  11. MAGIC NUMBER OF VALENCE ELECTRONS FOR STABILITY
  12. PLANTS MAKE SUGAR AND OXYGEN FROM SUNLIGHT AND CO2
  13. VERTICAL COLUMNS ON THE PT
  14. CHANGE WHICH CHANGES SIZE, SHAPE, OR STATE

28 Clues: USUALLY ARE GASES • CHARGE OF PROTONS • CHARGE OF NEUTRONS • CHARGE OF ELECTRONS • MASS DIVIDED BY VOLUME • SHINY QUALITY OF METALS • HORIZONTAL ROWS ON THE PT • ELECTRONS ARE FOUND IN THE • VERTICAL COLUMNS ON THE PT • MOST ELEMENTS ARE THIS TYPE • SMALLEST SUBATOMIC PARTICLE • SMALLEST PIECE OF AN ELEMENT • CONTAINS PROTONS AND NEUTRONS • TABLE THAT LISTS ALL ELEMENTS • ...

Biochemistry - Unit 2 2023-10-27

Biochemistry - Unit 2 crossword puzzle
Across
  1. a sugar
  2. matter containing only one type of atom
  3. water does this on its surface
  4. one unit of a macromolecule
  5. these two words got mushed together, DNA is an example
  6. repelled by water
  7. bond between water molecules
  8. the ending state of a chemical reaction
  9. protein and catalyst
  10. smallest unit of matter that has the characteristics of an element
  11. attracted by water
  12. two words, makes up lipids
  13. makes up nucleic acids
Down
  1. fats, waxes and oils are examples
  2. aka a molecule
  3. water sticks to other things
  4. the "stuff" of the universe
  5. chemical version may involve breaking bonds
  6. two words, makes up proteins
  7. bond where electrons are transferred
  8. bread, pasta, rice and fruit are examples
  9. what an enzyme acts upon
  10. the beginning state of a chemical reaction
  11. large molecule
  12. many units of a macromolecule
  13. water sticks to itself
  14. bond where electrons are shared
  15. get this from eggs, nuts, legumes, and dairy
  16. two or more atoms bound together

29 Clues: a sugar • aka a molecule • large molecule • repelled by water • attracted by water • protein and catalyst • water sticks to itself • makes up nucleic acids • what an enzyme acts upon • two words, makes up lipids • the "stuff" of the universe • one unit of a macromolecule • water sticks to other things • two words, makes up proteins • bond between water molecules • ...

Jack G. 4.1.3 2024-02-07

Jack G. 4.1.3 crossword puzzle
Across
  1. Cause of denaturation
  2. __________ energy is lowered by enzymes
  3. Enzymes are
  4. Point of temp where the enzyme functions best
  5. The substrate and enzyme must ____ to bind.
  6. The molecule that the enzyme acts on
  7. Cause of denaturation
  8. Increase in the temperature raises the _______ energy
  9. Enzymes are proteins made of
  10. Enzymes control this aspect of chemical reaction
  11. Enzymes can _____ molecules through anabolic reactions
  12. Process that changes the substrate
  13. Unfolding of an enzyme; no longer works
  14. Enzymes typically end in ___
Down
  1. What is left when catalysis is finished
  2. Block active sites
  3. Hypothesis that helps explain enzyme functioning
  4. Point of pH where the enzyme functions best
  5. Denaturation can be __________.
  6. Proteins that speed up chemical reactions by reducing activation energy
  7. Catobolic reaction causes the enzyme to _____ molecules
  8. Where the chemical reaction occurs, enzyme binds with the substrate
  9. Enzymes can be
  10. Molecules that speed up reactions
  11. Enzymes are more likely to collide at higher temperatures

25 Clues: Enzymes are • Enzymes can be • Block active sites • Cause of denaturation • Cause of denaturation • Enzymes are proteins made of • Enzymes typically end in ___ • Denaturation can be __________. • Molecules that speed up reactions • Process that changes the substrate • The molecule that the enzyme acts on • What is left when catalysis is finished • ...

Chemistry 2025-04-09

Chemistry crossword puzzle
Across
  1. another name for a positive ion
  2. a regular arrangement of particles
  3. liquid to solid
  4. poor heat and electricity conductor
  5. A compound found between oxygen & other elements
  6. does not react
  7. not harmful to healths
  8. breaks easily when stuck
  9. doesnt react easily
  10. reacts with substances it comes into contact with
  11. solid to liquid
  12. a soluble base
  13. The center part of an atom, made up of protons and neutrons
  14. reusing resources
  15. will dissolve in a solvent
  16. group 1 of the periodic table
Down
  1. how fast a reaction is
  2. ion with a negative charge
  3. harmful to healths
  4. another term for heat
  5. a starting chemical for a reaction
  6. ion with a positive charge
  7. gives out heat energy
  8. a gradual change
  9. an insoluble chemical produced during a chemical reaction
  10. has no charge
  11. another name for a negative ion
  12. made up of molecules
  13. burns easily
  14. solutes dissolve in it

30 Clues: burns easily • has no charge • does not react • a soluble base • liquid to solid • solid to liquid • a gradual change • reusing resources • harmful to healths • doesnt react easily • made up of molecules • another term for heat • gives out heat energy • how fast a reaction is • not harmful to healths • solutes dissolve in it • breaks easily when stuck • ion with a negative charge • ...

Inorganic chemistry and reactions 2023-08-26

Inorganic chemistry and reactions crossword puzzle
Across
  1. A solid substance that forms when two solutions are mixed in a chemical reaction. It's insoluble and separates from the solution.
  2. The amount of product obtained in a chemical reaction. It can be expressed as a percentage of the theoretical maximum amount.
  3. The amount of solute dissolved in a given amount of solvent. It indicates how strong or dilute a solution is.
  4. A substance present at the start of a chemical reaction that undergoes a transformation to produce new substances (products).
  5. A process in which reactants undergo chemical changes to form new substances (products) with different properties and compositions.
  6. A substance that increases the rate of a chemical reaction without itself being consumed in the process. It provides an alternative reaction pathway with lower activation energy.
Down
  1. A substance formed as a result of a chemical reaction. It's what you get at the end of the reaction when reactants transform.
  2. The process of decomposition or disintegration of a substance into simpler components or elements.
  3. A homogeneous mixture of two or more substances, where one substance (the solute) is dissolved uniformly in another (the solvent).
  4. A substance used in a chemical reaction to cause a chemical change in another substance. It often participates in the reaction without being consumed.

10 Clues: The process of decomposition or disintegration of a substance into simpler components or elements. • The amount of solute dissolved in a given amount of solvent. It indicates how strong or dilute a solution is. • A substance formed as a result of a chemical reaction. It's what you get at the end of the reaction when reactants transform. • ...

Chem vocab 2023-03-28

Chem vocab crossword puzzle
Across
  1. how many of each chemical
  2. chemicals produced from a reaction
  3. a mathematical relationship or rule expressed in symbols.
  4. chemicals that react with eachother
  5. the relation in quantity, amount, or size between 2 or more things: proportion
  6. energy is released/lost/given out
  7. 6.022× 10^23
  8. requires fuel and oxygen, creates carbon dioxide and water
  9. the solid that forms as the result of a chemical reaction
  10. the relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution.
  11. sticks to water
  12. describes a bond or a molecule
  13. how many of each element in each chemical
Down
  1. between, among molecules
  2. moles/liters
  3. the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
  4. does not stick to water
  5. shows directions electrons are being pulled
  6. the ability to be dissolved, especially in water.
  7. energy is absorbed/gained/taken in

20 Clues: moles/liters • 6.022× 10^23 • sticks to water • does not stick to water • between, among molecules • how many of each chemical • describes a bond or a molecule • energy is released/lost/given out • chemicals produced from a reaction • energy is absorbed/gained/taken in • chemicals that react with eachother • how many of each element in each chemical • ...

Science Final 2023-05-30

Science Final crossword puzzle
Across
  1. Increases the rate of a chemical reaction
  2. For every action there is an equal and opposite reaction
  3. Objects in motion stay in motion and objects at rest stay in rest unless acted upon by an external force
  4. A formation of chemicals ordered by there atomic numbers
  5. The genetic Features of a human
  6. The number of atoms in a element small number
  7. One less chromosome or
  8. The Energy of an object in motion
  9. The blueprint Of genetic information
  10. The physical features of a Human
  11. A cold air mass
  12. Karyotypes of a man
Down
  1. Determines the Chemical element and its place in the periodic table
  2. The energy required to start a chemical reaction
  3. Acceleration depends on the force and mass of the object
  4. A Warm air mass
  5. The energy stored in an object at rest
  6. Three less chromosome's
  7. How fast an object is moving
  8. Carry's genetic info
  9. How many molecules of that element there is Big Number
  10. Karyotypes of A woman

22 Clues: A Warm air mass • A cold air mass • Karyotypes of a man • Carry's genetic info • Karyotypes of A woman • One less chromosome or • Three less chromosome's • How fast an object is moving • The genetic Features of a human • The physical features of a Human • The Energy of an object in motion • The blueprint Of genetic information • The energy stored in an object at rest • ...

Chemistry 2024-04-22

Chemistry crossword puzzle
Across
  1. the movement of gas molecules from an area of higher concentration to lower concentration
  2. larger gases move_____
  3. _____ can never change at the same time as pressure
  4. smaller gases move_______
  5. Donates one proton per molecule
  6. Citrus juice is a_______
  7. breaking bonds requires______
  8. a substance that speeds up chemical reactions without undergoing any chemical changes
  9. A device used to measure the energy absorbed or released as heat in a chemical reaction
Down
  1. transition directly from a solid to a gas
  2. Donates more than one proton per molecule
  3. if a reaction absorbs energy it is_________
  4. Biological catalysts that speed up the rate of reactions in the body
  5. transition directly from a gas to a solid
  6. Bleach is a_______
  7. the total amount of energy
  8. the change in heat of the products from the reactants
  9. if a reaction releases energy it is__________
  10. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist
  11. diffusion through a tiny opening

20 Clues: Bleach is a_______ • larger gases move_____ • Citrus juice is a_______ • smaller gases move_______ • the total amount of energy • breaking bonds requires______ • Donates one proton per molecule • diffusion through a tiny opening • transition directly from a solid to a gas • Donates more than one proton per molecule • transition directly from a gas to a solid • ...

Carson Schwartz Unit 2 2025-03-24

Carson Schwartz Unit 2 crossword puzzle
Across
  1. The product of Molecules put together
  2. hates water
  3. only allows certain molecules in and out
  4. what you get when the chemical reaction takes place
  5. The product of cells put together
  6. molecules naturally move away from each other
  7. speeds up the time it takes for the Activation energy to start the chemical reaction
  8. Diffusion of water across the membrane
  9. when cells spread energy to move molecules across the membrane
  10. The whole body with the organ system
  11. The product of atoms put together
  12. The product of Organelles put together
Down
  1. a special region on the enzyme
  2. The product of organs put together
  3. Energy needed to start a chemical reaction
  4. movement across the membrane that doesn't take ATP
  5. Fits into the enzymes active site
  6. loves water
  7. when the active site changes
  8. The smallest unit of what things are made of
  9. a molecule that contains one hydrophilic and two hydrophobic tails
  10. The product of tissue put together

22 Clues: hates water • loves water • when the active site changes • a special region on the enzyme • Fits into the enzymes active site • The product of cells put together • The product of atoms put together • The product of organs put together • The product of tissue put together • The whole body with the organ system • The product of Molecules put together • ...

Properties 2025-09-04

Properties crossword puzzle
Across
  1. – mass per unit volume of a substance
  2. – ability to be hammered into thin sheets
  3. – ability to return to original shape after stretching
  4. – ability to cause harm to living things
  5. – gradual destruction by chemical reaction
  6. – ability to accept hydrogen ions (H⁺)
  7. – ability to transfer heat or electricity
  8. – resistance of a liquid to flow
  9. – ability to be stretched into wires
  10. – the appearance or shade of a substance
  11. – resistance to chemical change
  12. – dulling of a surface due to chemical reaction
Down
  1. – how a surface feels (rough, smooth, soft, etc.)
  2. – resistance to being scratched
  3. – ability to catch fire and burn
  4. – ability to interact with other substances
  5. – ability to dissolve in another substance
  6. – ability to be attracted to a magnet
  7. – reaction with oxygen, often forming rust
  8. – ability to donate hydrogen ions (H⁺)
  9. – ability to burn in the presence of oxygen
  10. – the smell of a substance
  11. – how a surface reflects light (shiny or dull)

23 Clues: – the smell of a substance • – resistance to being scratched • – resistance to chemical change • – ability to catch fire and burn • – resistance of a liquid to flow • – ability to be stretched into wires • – mass per unit volume of a substance • – ability to be attracted to a magnet • – ability to donate hydrogen ions (H⁺) • – ability to accept hydrogen ions (H⁺) • ...

Chemical Magic Crossword Puzzle!:) 2023-12-05

Chemical Magic Crossword Puzzle!:) crossword puzzle
Across
  1. a type of chemical reaction that turns metals brown
  2. when chemicals interact to form new chemicals
  3. a particle of matter
  4. the gooey substance that moves around in a lava lamp
  5. state of matter that has no fixed shape or volume
Down
  1. the smallest building block of matter
  2. what happens to a match when you swipe it on a matchbox
  3. anything that has mass and takes up space
  4. a type of chemical reaction that makes desserts and treats rise in the oven using heat
  5. state of matter that contains it's own shape and volume
  6. sometimes a room decoration, a chemical reaction inside of a glass bottle
  7. state of matter that flows and takes shape of container
  8. a type of chemical reaction that heats up food on a stovetop or in an oven

13 Clues: a particle of matter • the smallest building block of matter • anything that has mass and takes up space • when chemicals interact to form new chemicals • state of matter that has no fixed shape or volume • a type of chemical reaction that turns metals brown • the gooey substance that moves around in a lava lamp • what happens to a match when you swipe it on a matchbox • ...

States Of Matter 2018-02-20

States Of Matter crossword puzzle
Across
  1. Reaction single compound breaks down into two or more elements or new compounds
  2. equation statement that uses chemical formulas to show the identities and relative amounts of the substances involved in a chemical reaction,
  3. substances formed during the reaction
  4. starting substance
  5. number written in front of a reactant or product
  6. reaction a chemical reaction in which two or more substances react to produce a single product
Down
  1. Reaction atoms are replaced with another element in a compound
  2. reaction oxygen combines in this way with many different substances making combustion reactions more common
  3. a solid produced during a chemical reaction

9 Clues: starting substance • substances formed during the reaction • a solid produced during a chemical reaction • number written in front of a reactant or product • Reaction atoms are replaced with another element in a compound • Reaction single compound breaks down into two or more elements or new compounds • ...

Chemical Reactions 2023-02-27

Chemical Reactions crossword puzzle
Across
  1. Starts a chemical reaction.
  2. Involve observable changes.
  3. Tells us how many of each atom is in the compound.
  4. Absorbs Energy.
  5. Mass is neither created nor destroyed during chemical reactions.
  6. A short easy way to show a chemical reaction using symbols instead of words.
Down
  1. Releases Energy.
  2. Can exchange energy and matter vs just energy.
  3. Multiply this number by all the subscripts in the formula.
  4. What you end with.
  5. What you start with.
  6. A solid formed in a chemical reaction that is different from either of the reactants.

12 Clues: Absorbs Energy. • Releases Energy. • What you end with. • What you start with. • Starts a chemical reaction. • Involve observable changes. • Can exchange energy and matter vs just energy. • Tells us how many of each atom is in the compound. • Multiply this number by all the subscripts in the formula. • Mass is neither created nor destroyed during chemical reactions. • ...

chemistry crossword 2017-11-10

chemistry crossword crossword puzzle
Across
  1. chemical combination of two or more elements in a specific ratio
  2. a table in which the elements are organized by their physical and chemical properties
  3. a reaction that takes place when two or more substances react to form new substances
  4. positively charged center of an atom;contains protons and neutrons
  5. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  6. substance that strongly resists the flow of electricity
  7. property that describes the physical appearance and composition of a substance
  8. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  9. element that has both metallic and non-metallic properties
Down
  1. a material that electric charge can move through easily
  2. catalyst involved in chemical reactions in living things
  3. change in the appearance or state of a substance that does not change the composition
  4. that have a density of 5 or higher e.g., copper, zinc, lead, mercury, cadmium,nickel heavy metals are one type of substance monitored to determine water quality
  5. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  6. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  7. the sum of the number of protons and neutrons in an atom
  8. atom that has become electrically charged because it has lost or gained electrons a positive ion is an atom that has lost one or more electrons a negative ion is an atom that has gained on
  9. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  10. invisible negatively charged particle that orbits the nucleus of an atom
  11. substance that helps a chemical reaction to proceed more quickly
  12. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  13. an experiment in which one or more products of a chemical reaction can escape
  14. new substance produced in a chemical reaction between reactants
  15. neutral particle in the nucleus of an atom
  16. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy

25 Clues: neutral particle in the nucleus of an atom • a material that electric charge can move through easily • substance that strongly resists the flow of electricity • catalyst involved in chemical reactions in living things • the sum of the number of protons and neutrons in an atom • element that has both metallic and non-metallic properties • ...

Science Unit 3 Topics 1-3 Crossword 2013-12-08

Science Unit 3 Topics 1-3 Crossword crossword puzzle
Across
  1. the process whereby chemicals accumulate in the tissues of organism along the food chain
  2. a spray that controls “fungus pests”
  3. a spray that controls “pests”
  4. an example of nutrients that the human body cannot make itself and must get from food
  5. a mineral that the body requires in the amount of less than 100mg/day in order to maintain health
  6. rain or snow containing acid compounds from the air
  7. a spray that controls “insects
  8. paper saturated with a chemical to show whether a substance is acidic or basic
  9. a chemical that produces a basic substance, having a pH value of more than 7
Down
  1. special protein molecules that regulate chemical reactions in living organisms
  2. a living organism whose state is indicative of conditions in a particular environment
  3. a chemical that produces an acidic substance, having a pH value of less than 7
  4. a chemical reaction in which oxygen combines with other elements to form new substances
  5. a chemical that produces a basic substance, having a pH value of more than 7
  6. a spray that controls “weeds”
  7. a mineral that the body requires in the amount of 100mg/day or more in order to maintain health
  8. a chemical that changes colour to indicate whether a substance is an acid or a base
  9. a substance that speeds up a chemical reaction without being used up in a reaction
  10. a way of comparing the relative acidity or alkalinity of a substance

19 Clues: a spray that controls “pests” • a spray that controls “weeds” • a spray that controls “insects • a spray that controls “fungus pests” • rain or snow containing acid compounds from the air • a way of comparing the relative acidity or alkalinity of a substance • a chemical that produces a basic substance, having a pH value of more than 7 • ...

Thermochemistry 2014-04-29

Thermochemistry crossword puzzle
Across
  1. / Unit of energy needed to increase the temperature by 1 degree
  2. Energy / Energy due to motion
  3. of Conservation of Energy / Law that you cannot destroy or create energy
  4. / Study of energy transfer in the form of heat during chemical reactions and physical changes
  5. / Reaction that absorbs heat and feels hot
  6. heat of Fusion / Amount of energy as heat required to change 1 molecule of substance from solid to liquid
  7. (heat) of combustion / Energy released as heat by combustion of a specific amount of a substance at constant pressure or volume
  8. Energy / Stored energy
  9. / Energy transferred because of molecular movement that deals with the amount and type of molecules
  10. / Reaction that releases heat and feels cold
  11. heat / The quantity of heat required to raise a unit mass of homogeneous material 1 degree Celsius
Down
  1. / Device used to measure the energy as heat absorbed or released in chemical/physical change
  2. / Science or act of measuring changes in chemical reactions
  3. / Measure of molecular movement
  4. / Ability to do work
  5. Heat of Vaporization / Amount of energy as heat required to convert liquid to gas
  6. / Unit of work or energy
  7. Potential Energy / Form of potential energy that can be absorbed or released during a chemical reaction

18 Clues: / Ability to do work • Energy / Stored energy • / Unit of work or energy • Energy / Energy due to motion • / Measure of molecular movement • / Reaction that absorbs heat and feels hot • / Reaction that releases heat and feels cold • / Science or act of measuring changes in chemical reactions • / Unit of energy needed to increase the temperature by 1 degree • ...

HVAC technicians are certainly pro-ducts 2023-12-08

HVAC technicians are certainly pro-ducts crossword puzzle
Across
  1. (2 words) the process that will create new substances
  2. a chemical reaction will create this
  3. (2 words) letters and numbers showing the types and number of atoms that repeat to make up a substance
  4. a type of matter with the same properties
  5. something that will change in a chemical reaction
Down
  1. a substance that will change in a chemical reaction
  2. repeat to make up a substance
  3. (2 words) an example of what might happen during a chemical reaction
  4. a group of atoms joined together in a particular way
  5. when you haven't practiced something in a little while, you might be a little…
  6. the atom responsible for making Mars dust red
  7. the name of the reddish-brown substance
  8. small units of matter that combine to make up molecules

13 Clues: repeat to make up a substance • a chemical reaction will create this • the name of the reddish-brown substance • a type of matter with the same properties • the atom responsible for making Mars dust red • something that will change in a chemical reaction • a substance that will change in a chemical reaction • a group of atoms joined together in a particular way • ...

Physical and Chemical Change 2019-11-07

Physical and Chemical Change crossword puzzle
Across
  1. A decrease in size
  2. A change of state where a liquid changes to a gas at the surface of the liquid
  3. A change of state where a liquid is heated and changes to a gas within the liquid
  4. A change that does not result in a new substance being produced
  5. The substances formed in chemical reactions
  6. Evaporation of solvent from a solution to leave solute behind as crystals
  7. The starting substances in chemical reactions
  8. Any chemical reaction where a substance burns in oxygen to produce light and heat
  9. A chemcial reaction that converts oxygen and glucose into water and carbon dioxide while releasing energy.
Down
  1. A solid formed during a chemical change
  2. An increase in size
  3. A change of state where a gas is cooled and forms a liquid
  4. The change of state when a solid is heated and forms a liquid
  5. A simple chemical equation where chemicals are represented by their names
  6. A change that results in a new substance being formed
  7. The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun
  8. A change of state from gas to solid
  9. The change of state from liquid to solid

18 Clues: A decrease in size • An increase in size • A change of state from gas to solid • A solid formed during a chemical change • The change of state from liquid to solid • The substances formed in chemical reactions • The starting substances in chemical reactions • A change that results in a new substance being formed • A change of state where a gas is cooled and forms a liquid • ...

Physical and Chemical Change 2019-11-07

Physical and Chemical Change crossword puzzle
Across
  1. An increase in size
  2. A chemcial reaction that converts oxygen and glucose into water and carbon dioxide while releasing energy.
  3. Evaporation of solvent from a solution to leave solute behind as crystals
  4. A change that does not result in a new substance being produced
  5. A change of state where a liquid changes to a gas at the surface of the liquid
  6. The change of state from liquid to solid
Down
  1. A change of state where a liquid is heated and changes to a gas within the liquid
  2. A change of state where a gas is cooled and forms a liquid
  3. A change of state from gas to solid
  4. The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun
  5. The change of state when a solid is heated and forms a liquid
  6. A change that results in a new substance being formed
  7. The substances formed in chemical reactions
  8. A solid formed during a chemical change
  9. A decrease in size
  10. A simple chemical equation where chemicals are represented by their names
  11. The starting substances in chemical reactions
  12. Any chemical reaction where a substance burns in oxygen to produce light and heat

18 Clues: A decrease in size • An increase in size • A change of state from gas to solid • A solid formed during a chemical change • The change of state from liquid to solid • The substances formed in chemical reactions • The starting substances in chemical reactions • A change that results in a new substance being formed • A change of state where a gas is cooled and forms a liquid • ...

BOTC Lecture Chapter 2 Spring 2026 2015-05-15

BOTC Lecture Chapter 2 Spring 2026 crossword puzzle
Across
  1. Building-block of proteins.
  2. Chemical reaction that consumes H2O.
  3. Electrons don't count (2 words; no space).
  4. Make bi-layer membranes; amphipathic.
  5. Sugar + protein; cellular ID.
  6. Resists change in pH.
  7. Chemical reaction that makes H2O.
  8. Sharing electrons.
  9. Bonding through give and take.
Down
  1. Simplest of sugars.
  2. Molecules made by living things; lots of C and O.
  3. Building-block of nucleic acids.
  4. Nuclear and neutral.
  5. Sub-atomic particle (+).
  6. When atoms hold it together.
  7. Bond involving an attraction, but no sharing of e-; molecular hover hand.
  8. Makes chemical bonding possible; valence.
  9. Covalent, but not sharing equally; H2O.
  10. Removes Hydronium ion in H2O; e- donor.
  11. Elemental matter.
  12. Increases [Hydronium ion] in H2O; e- acceptor.

21 Clues: Elemental matter. • Sharing electrons. • Simplest of sugars. • Nuclear and neutral. • Resists change in pH. • Sub-atomic particle (+). • Building-block of proteins. • When atoms hold it together. • Sugar + protein; cellular ID. • Bonding through give and take. • Building-block of nucleic acids. • Chemical reaction that makes H2O. • Chemical reaction that consumes H2O. • ...

Science 2013-12-19

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

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

Energetics 2022-02-22

Energetics crossword puzzle
Across
  1. The reactions that are taken to reach a specific end result
  2. The amount of energy lost or gained in a system
  3. The energy held by an object due to its position or state
  4. A reaction that releases heat/energy into its surroundings
  5. A chemical equation that includes the enthalpy change
  6. An exothermic process creating connections between molecules
  7. The compounds/elements produced after a reaction
  8. The minimum energy needed to continue a reaction
Down
  1. The compounds/elements that are used in a reaction
  2. An instrument used in measuring the heat of chemical reactions
  3. An endothermic process breaking the connection between molecules
  4. the energy required to raise the temperature of one gram of a compound by a degree
  5. the internal energy of reactant or product
  6. The energy held by an object due to its motion/movement
  7. The energy stored in the bonds between molecules
  8. Any molecule containing a pair or more of electrons in the valence shell capable of independent existence
  9. Energy transferred between systems/ molecules
  10. A reaction that absorbs heat/energy from its surroundings
  11. The sum of a systems internal energy
  12. The reaction between a reactant and oxygen

20 Clues: The sum of a systems internal energy • the internal energy of reactant or product • The reaction between a reactant and oxygen • Energy transferred between systems/ molecules • The amount of energy lost or gained in a system • The energy stored in the bonds between molecules • The compounds/elements produced after a reaction • ...

Energetics 2022-02-22

Energetics crossword puzzle
Across
  1. The energy held by an object due to its motion/movement
  2. An instrument used in measuring the heat of chemical reactions
  3. An exothermic process creating connections between molecules
  4. the energy required to raise the temperature of one gram of a compound by a degree
  5. The energy held by an object due to its position or state
  6. Energy transferred between systems/ molecules
  7. The energy stored in the bonds between molecules
Down
  1. The amount of energy lost or gained in a system
  2. Any molecule containing a pair or more of electrons in the valence shell capable of independent existence
  3. A reaction that absorbs heat/energy from its surroundings
  4. the internal energy of reactant or product
  5. The minimum energy needed to continue a reaction
  6. The compounds/elements produced after a reaction
  7. The reactions that are taken to reach a specific end result
  8. The sum of a systems internal energy
  9. A chemical equation that includes the enthalpy change
  10. The reaction between a reactant and oxygen
  11. An endothermic process breaking the connection between molecules
  12. The compounds/elements that are used in a reaction
  13. A reaction that releases heat/energy into its surroundings

20 Clues: The sum of a systems internal energy • the internal energy of reactant or product • The reaction between a reactant and oxygen • Energy transferred between systems/ molecules • The amount of energy lost or gained in a system • The minimum energy needed to continue a reaction • The compounds/elements produced after a reaction • ...

7th Grade Science Chapter 6 Terms 2016-01-05

7th Grade Science Chapter 6 Terms crossword puzzle
Across
  1. A substance that is made from a chemical reaction.
  2. Molecules of only Hydrogen and Carbon.
  3. A solid that is formed in a chemical reaction.
  4. A reaction that releases heat and feels hotter.
  5. Something that speeds up a reaction but does not change in the reaction.
Down
  1. A reaction that absorbs heat and feels colder.
  2. A substance that under goes a change in a reaction.
  3. A reaction where matter stays the same but can change in size shape or appearance.
  4. A reaction where matter changes to a different kind of matter or to a different color.
  5. Something that can dissolved.

10 Clues: Something that can dissolved. • Molecules of only Hydrogen and Carbon. • A reaction that absorbs heat and feels colder. • A solid that is formed in a chemical reaction. • A reaction that releases heat and feels hotter. • A substance that is made from a chemical reaction. • A substance that under goes a change in a reaction. • ...

Hanah Tomlinson 2020-01-17

Hanah Tomlinson crossword puzzle
Across
  1. a quantity associated with a thermodynamic system, expressed as the internal energy of a system plus the product of the pressure and volume of the system, having the property that during an isobaric process, the change in the quantity is equal to the heat transferred during the process.
  2. a certain quantity or amount of one thing considered in relation to a unit of another thing and used as a standard or measure.
  3. a substance that causes or accelerates a chemical reaction without itself being affected.
  4. (in chemistry) clustered or gathered together closely.
  5. rapid oxidation accompanied by heat and, usually, light.
  6. electron an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.
  7. of the deposit that forms on the surface of a metal as it oxidizes.
  8. (on a macroscopic scale) a function of thermodynamic variables, as temperature, pressure, or composition, that is a measure of the energy that is not available for work during a thermodynamic process.
  9. (in chemistry) any substance that undergoes a chemical change in a given reaction.
  10. chandeliers principle stating that if a constraint
  11. surface area the outside part or uppermost layer of something (often used when describing its texture, form, or extent).
Down
  1. a substance that decreases the rate of or stops completely a chemical reaction.
  2. of the combination of ideas to form a theory or system.
  3. the state of being decomposed; decay.
  4. energy the least amount of energy required to activate atoms or molecules to a state in which they can undergo a chemical reaction.
  5. chemistry) a substance obtained from another substance through chemical change.
  6. the quality or property of being soluble; relative capability of being dissolved.
  7. chemical reaction reactants form products that, in turn, react together to give the reactants back.
  8. a measure of the warmth or coldness of an object or substance with reference to some standard value.
  9. any device, material, or apparatus used as a shield, cushion, or bumper, especially on machinery.
  10. the exertion of force upon a surface by an object, fluid, etc., in contact with it:
  11. replacement reaction a reaction in which one element is substituted for another element in a compound.
  12. activated complex that assembly of atoms which corresponds to an arbitrary infinitesimally small region at or near the col of a potential energy surface.

23 Clues: the state of being decomposed; decay. • chandeliers principle stating that if a constraint • (in chemistry) clustered or gathered together closely. • of the combination of ideas to form a theory or system. • rapid oxidation accompanied by heat and, usually, light. • of the deposit that forms on the surface of a metal as it oxidizes. • ...

Unit 1 Vocab 2021-10-14

Unit 1 Vocab crossword puzzle
Across
  1. bond a weak Bond resulting from an electrostatic
  2. The process of adapting
  3. energy measure of the bond strength
  4. dissolves insolvent
  5. no charge bonds between atoms
  6. energy minimum amount of energy required to activate atoms
  7. complex Network which connects biologically relevant entities
  8. dissolves solute
  9. formed from the chemical reaction
  10. acid hydrocarbon chain, with terminal carboxyl group
  11. bond formed by two particles with opposite charge
  12. consists of big molecules
  13. large biomolecules and macromolecules
  14. donate Electronics, accepts protons, or releases OH -
  15. reaction absorbing Heat
  16. change in population over a period of time
  17. instrument for viewing small Objects
  18. variety of life in a habitat
  19. water sticks to other molecules
  20. regions of Earth occupied by living organisms
  21. any individual living thing
  22. changes during chemical reactions
  23. chemical being observed in the reaction
  24. when reactants and products change no more
  25. tendency to keep internal conditions relatively the same
  26. acid complex organic substance, commonly found in DNA
  27. scientific procedure to make discovery
  28. chemical processes that occur in the body that maintain life
Down
  1. educated guess
  2. stats collected for analysis
  3. study of living organisms
  4. variable depends on the independent variable
  5. basic unit of chemistry
  6. bio molecule consisting of carbon, oxygen, and hydrogen
  7. consist of different atoms and molecules
  8. a mixture of 2 + substances
  9. From any class of organic compounds that are fatty acids
  10. bond electrons are shared
  11. acid organic compounds that contain carboxyl and amino
  12. one particular group of living things
  13. determines how acidic or basic a liquid is
  14. consisting of atoms that have same number of protons
  15. variable that you are testing
  16. heredity that is transferred from parent to offspring
  17. variable that is not changed at all
  18. water sticks to water
  19. speeds up a specific reaction in a cell
  20. reaction accompanied with heat
  21. a system of ideas explaining something that is backed by science
  22. reaction process that rearranges the molecular or ionic structure
  23. increases the rate of chemical reaction
  24. carrier of genetic info
  25. molecule or ion that can donate proton
  26. most basic unit of life
  27. use of living things to make for help make products
  28. community of interacting organisms
  29. small molecules that join other molecules to make a big one
  30. particle with charge

58 Clues: educated guess • dissolves solute • dissolves insolvent • particle with charge • water sticks to water • The process of adapting • basic unit of chemistry • carrier of genetic info • most basic unit of life • reaction absorbing Heat • study of living organisms • consists of big molecules • bond electrons are shared • any individual living thing • stats collected for analysis • ...

Chemistry crossword puzzle 2023-10-12

Chemistry crossword puzzle crossword puzzle
Across
  1. The end result of a chemical reaction.
  2. A chemical reaction in which a single element replaces another element in a compound.
  3. A chemical reaction in which two or more substances combine to form a new compound.
  4. A chemical reaction that involves a substance combining with oxygen to produce heat and light.
  5. A reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
  6. The order of reactivity of metals, showing which metals can displace others in a reaction.
Down
  1. A process that involves rearrangement of the molecular or ionic structure of a substance
  2. A reaction in which heat is added and a single compound breaks down into two or more simpler substances.
  3. The starting materials in a chemical reaction.

9 Clues: The end result of a chemical reaction. • The starting materials in a chemical reaction. • A chemical reaction in which two or more substances combine to form a new compound. • A chemical reaction in which a single element replaces another element in a compound. • A process that involves rearrangement of the molecular or ionic structure of a substance • ...

Chemical Reactions Vocab Crossword 2022-02-04

Chemical Reactions Vocab Crossword crossword puzzle
Across
  1. A reaction in which a hydrocarbon combines with oxygen to produce carbon dioxide and water.
  2. A _ speeds up a reaction by lowering the activation energy of a reaction.
  3. The compounds that are combined together to begin a chemical reaction are the _.
  4. When an equation is _, there are an equal number of atoms of each element on the reactants side as there are on the products side.
  5. According to _, atoms must collide with one another in order to react, and they must do so in the correct orientation and with the right amount of energy.
  6. A compound that is formed between a metal and a nonmetal is an _ compound.
  7. Decreasing the volume will speed up a reaction only if both reactants are _.
  8. Changing the _ increases the speed and energy of particles, resulting in more collisions with the appropriate energy.
  9. Some elements are _, meaning they exist in nature as two identical atoms bonded to one another.
  10. To increase the probability of a collision, one could add additional reactants to the reaction vessel, also known as increasing the _.
  11. Atoms must collide with the correct _ and with enough energy for a reaction to occur.
  12. A reaction that takes in energy and makes its surroundings feel colder is called _.
  13. The compounds that are created as a result of a reaction are the _.
Down
  1. A reaction in which one substance breaks down into two or more parts.
  2. To increase the amount of exposed particles available for collisions, the _ should be increased by crushing the reactants.
  3. A compound that is formed solely between nonmetals is a _ compound.
  4. The law of conservation of _ states that mass is never created, nor destroyed.
  5. The amount of energy needed to start a reaction.
  6. The _ tells how many of each atom are in a chemical compound.
  7. The _ indicates how many moles of reactant or product are needed in a balanced equation for a reaction to take place.
  8. An _ compound is one which has been dissolved in water.
  9. The _ number is the total number of electrons that is gained or lost by a neutral atom to form an ionic bond.
  10. A reaction in which multiple elements or compounds combine to create one chemically bonded compound.
  11. The structure that forms while old bonds are breaking and new bonds are forming during a chemical reaction.
  12. A reaction that gives off energy as heat and makes the surroundings hotter is called _.

25 Clues: The amount of energy needed to start a reaction. • An _ compound is one which has been dissolved in water. • The _ tells how many of each atom are in a chemical compound. • A compound that is formed solely between nonmetals is a _ compound. • The compounds that are created as a result of a reaction are the _. • ...

ch13 Andrew canfield 2018-03-09

ch13 Andrew canfield crossword puzzle
Across
  1. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  2. The reacting substances in a chemical reaction.
  3. A measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration.
  4. The minimum energy required in order for a chemical reaction to proceed.
  5. A reaction between an acid and a base.
Down
  1. Matter is neither created nor destroyed during a chemical reaction; atoms are merely rearranged, without any apparent loss or gain of mass, to form new molecules.
  2. One half of an oxidation–reduction reaction, represented by an equation showing electrons as either reactants or products.
  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. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.

10 Clues: A reaction between an acid and a base. • The reacting substances in a chemical reaction. • The minimum energy required in order for a chemical reaction to proceed. • Description of a chemical reaction in which there is a net release of energy. • A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen. • ...

Chapter 3 Vocab Crossword 2019-04-02

Chapter 3 Vocab Crossword crossword puzzle
Across
  1. What is left after the enzyme binds with the substrate
  2. A measure of how acidic or basic something is on a scale of 1-14 with 1 being most acidic, 7 being neutral, and 14 being most basic
  3. To prevent an enzyme from working in the normal manner
  4. An enzyme that is attached to an inert, insoluble substance. Can provide increased resistance to changes in conditions
  5. The reaction product inhibits the enzyme activity
  6. The maximum rate of reaction when the enzyme is saturated with substrate
  7. The substance on which an enzyme acts
  8. Operating within the cell
  9. The temperature at which any specific reaction or process is best carried out
  10. The pH level at which a specific enzyme can work most effectively
  11. Protein molecules that act as biological catalysts
Down
  1. An enzyme inhibitor which does not prevent the enzyme from functioning properly permanently
  2. The minimum energy required to allow a certain chemical reaction to occur
  3. A molecule which speeds up a chemical reaction
  4. A region on an enzyme that binds to a protein or other substance during a reaction.
  5. The inhibitor binds to the enzyme's active site and prevents the substrate from binding, stops the reaction from happening
  6. Something which prevents an enzyme from working in the normal manner
  7. A process that uses the conditions of one component to regulate the function of the other. It is done to either increase or dampen the change in the system.
  8. To alter the structure of a protein by breaking bonds
  9. Operating outside of the cell
  10. The number of chemical conversions of the substrate molecules per second at a catalytic site for a given enzyme concentration

21 Clues: Operating within the cell • Operating outside of the cell • The substance on which an enzyme acts • A molecule which speeds up a chemical reaction • The reaction product inhibits the enzyme activity • Protein molecules that act as biological catalysts • To alter the structure of a protein by breaking bonds • What is left after the enzyme binds with the substrate • ...

Vocab crossword 2024-03-18

Vocab crossword crossword puzzle
Across
  1. a measure of the quantity of moles of a product
  2. a reaction in which one element is substituted for another element in a compound
  3. the process or result of oxidizing or being oxidized
  4. have two ionic compounds that are exchanging anions or cations
  5. a chemical reaction between substances
  6. a reaction in which the functional group of one chemical compound is substituted by another group
Down
  1. occurs when one reactant breaks down into two or more products
  2. Reaction as opposed to a change in physical form
  3. reactant in a chemical reaction that determines the amount of product that is formed
  4. a substance that is not wholly consumed or entirely reacted in a chemical reaction

10 Clues: a chemical reaction between substances • a measure of the quantity of moles of a product • Reaction as opposed to a change in physical form • the process or result of oxidizing or being oxidized • occurs when one reactant breaks down into two or more products • have two ionic compounds that are exchanging anions or cations • ...

Chemical Reactions 2023-02-27

Chemical Reactions crossword puzzle
Across
  1. Starts a chemical reaction.
  2. Involve observable changes.
  3. Tells us how many of each atom is in the compound.
  4. Absorbs Energy.
  5. Mass is neither created nor destroyed during chemical reactions.
  6. A short easy way to show a chemical reaction using symbols instead of words.
Down
  1. Releases Energy.
  2. Can exchange energy and matter vs just energy.
  3. Multiply this number by all the subscripts in the formula.
  4. What you end with.
  5. What you start with.
  6. A solid formed in a chemical reaction that is different from either of the reactants.

12 Clues: Absorbs Energy. • Releases Energy. • What you end with. • What you start with. • Starts a chemical reaction. • Involve observable changes. • Can exchange energy and matter vs just energy. • Tells us how many of each atom is in the compound. • Multiply this number by all the subscripts in the formula. • Mass is neither created nor destroyed during chemical reactions. • ...

Science 2013-12-19

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

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

Energetics 2022-02-22

Energetics crossword puzzle
Across
  1. The energy held by an object due to its motion/movement
  2. An instrument used in measuring the heat of chemical reactions
  3. An exothermic process creating connections between molecules
  4. the energy required to raise the temperature of one gram of a compound by a degree
  5. The energy held by an object due to its position or state
  6. Energy transferred between systems/ molecules
  7. The energy stored in the bonds between molecules
Down
  1. The amount of energy lost or gained in a system
  2. Any molecule containing a pair or more of electrons in the valence shell capable of independent existence
  3. A reaction that absorbs heat/energy from its surroundings
  4. the internal energy of reactant or product
  5. The minimum energy needed to continue a reaction
  6. The compounds/elements produced after a reaction
  7. The reactions that are taken to reach a specific end result
  8. The sum of a systems internal energy
  9. A chemical equation that includes the enthalpy change
  10. The reaction between a reactant and oxygen
  11. An endothermic process breaking the connection between molecules
  12. The compounds/elements that are used in a reaction
  13. A reaction that releases heat/energy into its surroundings

20 Clues: The sum of a systems internal energy • the internal energy of reactant or product • The reaction between a reactant and oxygen • Energy transferred between systems/ molecules • The amount of energy lost or gained in a system • The minimum energy needed to continue a reaction • The compounds/elements produced after a reaction • ...

Chemistry Vocabulary 2018-12-13

Chemistry Vocabulary crossword puzzle
Across
  1. a slow chemical change when oxygen reacts with metal.
  2. combination of symbols that represent a compound
  3. when two or more chemicals react to form a new substance.
  4. experiments where material can escape
  5. shows how many protons are in the nucleus of one atom in the element.
  6. amu for short.
  7. _______________ are formed when non-metals combine.
  8. a reaction that absorbs heat energy.
  9. an organized table of the elements
  10. a fast reaction that occurs when oxygen reacts with a substance.
  11. had a model that showed the atom looking like a solar system
  12. believed matter was made up of water,fire,earth, and air
  13. most stable and nonreactive elements in the periodic table.
  14. liquid,gas,solid
  15. new materials produce after the reaction.
Down
  1. a reaction that releases heat energy.
  2. chemical reaction that takes place in the cells in your body
  3. _______ are shiny, malleable and ductile.
  4. the mass of one atom in an element
  5. colour,lustre,hardness
  6. _____________ are formed when a non-metal and metal combine.
  7. anything that has mass and occupies space.
  8. experiments where no material can escape
  9. a substance that can't be simplified.
  10. the materials at the start of a reaction.

25 Clues: amu for short. • liquid,gas,solid • colour,lustre,hardness • the mass of one atom in an element • an organized table of the elements • a reaction that absorbs heat energy. • a reaction that releases heat energy. • experiments where material can escape • a substance that can't be simplified. • experiments where no material can escape • _______ are shiny, malleable and ductile. • ...

Unit 2: Thermochemistry 2025-03-20

Unit 2: Thermochemistry crossword puzzle
Across
  1. Heat The amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius
  2. A process where chemical substances are transformed
  3. The part of the universe under study in thermochemistry
  4. The SI unit of energy
  5. Function A property that depends only on the state of a system, not the path taken
  6. The heat content of a system at constant pressure
  7. Energy transfer that results from a force acting over a distance
  8. The capacity to do work or produce heat
  9. Free Energy Determines whether a reaction is spontaneous
  10. A device used to measure heat changes in a system
  11. A reaction that absorbs heat from the surroundings
  12. Everything outside the system in thermochemistry
  13. A measure of the disorder or randomness in a system
Down
  1. Energy transfer due to a temperature difference
  2. Law States that the total enthalpy change of a reaction is the sum of individual steps
  3. A process that occurs without outside intervention
  4. A measure of the average kinetic energy of particles
  5. A reaction that releases heat to the surroundings
  6. Energy The energy required to break a chemical bond
  7. A reaction in which a substance reacts with oxygen to release heat

20 Clues: The SI unit of energy • The capacity to do work or produce heat • Energy transfer due to a temperature difference • Everything outside the system in thermochemistry • The heat content of a system at constant pressure • A reaction that releases heat to the surroundings • A device used to measure heat changes in a system • ...

Science 2013-12-19

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

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

Science 2013-12-19

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

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

Basic chemistry vocabulary 2018-02-26

Basic chemistry vocabulary crossword puzzle
Across
  1. the smallest unit, consisting of a group of atoms, into which a substance can be divided without a change in its chemical nature
  2. measurement of the level of acid or alkali in a solution or substance. In the pH range of 0 to 14 a reading of below 7 shows an acid and of above 7 shows an alkali.
  3. a substance that takes part in and is changed by a chemical reaction
  4. a substance dissolved in another substance, usually the component of a solution present in the lesser amount.
  5. a liquid with very small pieces of solid matter floating in it; the state of such a liquid
  6. any mixture of liquids that do not normally mix together, such as oil and water
  7. a chemical, usually a liquid, that contains hydrogen and has a pH of less than seven. The hydrogen can be replaced by a metal to form a salt.
Down
  1. a solid substance that has been separated from a liquid in a chemical process
  2. a combination of two or more substances that mix together without any chemical reaction taking place
  3. a substance that makes a chemical reaction happen faster without being changed itself.
  4. a substance formed by a chemical reaction of two or more elements in fixed amounts relative to each other
  5. a liquid in which something is dissolved
  6. a measurement of the power of an atom to combine with others, by the number of hydrogen atoms it can combine with or displace
  7. a substance used to cause a chemical reaction, especially in order to find out if another substance is present
  8. a substance, especially a liquid, that can dissolve another substance

15 Clues: a liquid in which something is dissolved • a substance that takes part in and is changed by a chemical reaction • a substance, especially a liquid, that can dissolve another substance • a solid substance that has been separated from a liquid in a chemical process • any mixture of liquids that do not normally mix together, such as oil and water • ...

Chemistry crossword 2021-07-12

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

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

Elements of Photosynthesis 2024-01-27

Elements of Photosynthesis crossword puzzle
Across
  1. energy stored in the bonds of atoms (2 Words)
  2. an organelle that hold chlorophyll
  3. result of a chemical reaction
  4. components needed for a chemical reaction
Down
  1. _____ is converted into chemical energy during photosynthesis(2 words)
  2. green pigment that captures sunlight
  3. a sugar
  4. a gas that plants produce
  5. H2O
  6. a chemical reaction to make food

10 Clues: H2O • a sugar • a gas that plants produce • result of a chemical reaction • a chemical reaction to make food • an organelle that hold chlorophyll • green pigment that captures sunlight • components needed for a chemical reaction • energy stored in the bonds of atoms (2 Words) • _____ is converted into chemical energy during photosynthesis(2 words)

7th Grade Science Chapter 6 Terms 2016-01-05

7th Grade Science Chapter 6 Terms crossword puzzle
Across
  1. A substance that is made from a chemical reaction.
  2. Molecules of only Hydrogen and Carbon.
  3. A solid that is formed in a chemical reaction.
  4. A reaction that releases heat and feels hotter.
  5. Something that speeds up a reaction but does not change in the reaction.
Down
  1. A reaction that absorbs heat and feels colder.
  2. A substance that under goes a change in a reaction.
  3. A reaction where matter stays the same but can change in size shape or appearance.
  4. A reaction where matter changes to a different kind of matter or to a different color.
  5. Something that can dissolved.

10 Clues: Something that can dissolved. • Molecules of only Hydrogen and Carbon. • A reaction that absorbs heat and feels colder. • A solid that is formed in a chemical reaction. • A reaction that releases heat and feels hotter. • A substance that is made from a chemical reaction. • A substance that under goes a change in a reaction. • ...

chemistry crossword 2017-11-13

chemistry crossword crossword puzzle
Across
  1. that have a density of 5 or higher e.g., copper, zinc, lead, mercury, cadmium,nickel heavy metals are one type of substance monitored to determine water quality
  2. positively charged center of an atom;contains protons and neutrons
  3. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  4. a table in which the elements are organized by their physical and chemical properties
  5. atom that has become electrically charged because it has lost or gained electrons a positive ion is an atom that has lost one or more electrons a negative ion is an atom that has gained on
  6. property that describes the physical appearance and composition of a substance
  7. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  8. neutral particle in the nucleus of an atom
  9. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  10. the sum of the number of protons and neutrons in an atom
  11. a material that electric charge can move through easily
  12. chemical combination of two or more elements in a specific ratio
  13. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
Down
  1. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  2. an experiment in which one or more products of a chemical reaction can escape
  3. element that has both metallic and non-metallic properties
  4. change in the appearance or state of a substance that does not change the composition
  5. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  6. substance that strongly resists the flow of electricity
  7. invisible negatively charged particle that orbits the nucleus of an atom
  8. catalyst involved in chemical reactions in living things
  9. substance that helps a chemical reaction to proceed more quickly
  10. a reaction that takes place when two or more substances react to form new substances
  11. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  12. new substance produced in a chemical reaction between reactants

25 Clues: neutral particle in the nucleus of an atom • substance that strongly resists the flow of electricity • a material that electric charge can move through easily • catalyst involved in chemical reactions in living things • the sum of the number of protons and neutrons in an atom • element that has both metallic and non-metallic properties • ...

Thermal Energy 2021-04-09

Thermal Energy crossword puzzle
Across
  1. power delivered from physical or chemical reaction to produce heat or light
  2. A reaction that absorbs heat
  3. The SI unit of energy
  4. The amount of energy required to change a substance from a solid state to a liquid state
  5. The change from a solid state to a liquid state
  6. A chemical reaction which gives off heat
  7. Amount of heat transferred or absorbed during a chemical reaction
  8. Everything around a system
Down
  1. The change of a gas state to a liquid state
  2. The transition of a solid to a gas without passing through the liquid faze
  3. the measurement of heat flow out of a system during a chemical or physical change.
  4. The amount of energy needed to raise the temperature of one gram of a substance by one degree celsius
  5. The energy needed to raise the temperature/heat up a kilogram of water by one degree Celsius
  6. The change of vapor to a solid by cooling
  7. Components organized that function together as a whole to complete one task
  8. The change of a liquid state to a solid state
  9. The amount of energy required for a liquid to become a gas

17 Clues: The SI unit of energy • Everything around a system • A reaction that absorbs heat • A chemical reaction which gives off heat • The change of vapor to a solid by cooling • The change of a gas state to a liquid state • The change of a liquid state to a solid state • The change from a solid state to a liquid state • The amount of energy required for a liquid to become a gas • ...

APT 5.1 Vocab Review 2026-03-11

APT 5.1 Vocab Review crossword puzzle
Across
  1. A chemical reaction where a substance gains electrons.
  2. An enzyme that breaks down starch into glucose molecules.
  3. The electrode where reduction occurs and electrons enter during an electrochemical reaction.
  4. Energy caused by the movement of electrons through a conductor.
  5. A type of alcohol made by fermentation of sugars, often used as a biofuel.
  6. A unit used to measure energy, often referring to the amount of energy food provides.
  7. A battery that uses a liquid electrolyte to produce electricity through chemical reactions.
  8. A closed path that allows electricity to flow.
  9. A large molecule made up of repeating smaller units called monomers.
  10. To speed up a chemical reaction without being used up in the process.
  11. A process where substances change into new substances with different properties.
  12. The total energy of the movement of particles within a substance; often felt as heat.
  13. A group of two or more atoms bonded together.
  14. A carbohydrate made of many sugar molecules linked together, such as starch or cellulose.
  15. The smallest unit of an element that still has the properties of that element.
  16. Energy stored in the bonds between atoms in molecules.
  17. energy Stored energy that has the ability to do work.
  18. The amount of heat required to raise the temperature of a substance by a certain amount.
  19. A substance that conducts electricity when dissolved in water or melted.
Down
  1. A chemical reaction where a substance reacts with oxygen and releases energy as heat and light.
  2. The energy an object has because of its motion.
  3. An enzyme that breaks down starch into simpler sugars.
  4. The simplest type of sugar molecule, such as glucose.
  5. A protein that speeds up chemical reactions in living organisms.
  6. A chemical reaction that releases energy, usually in the form of heat or light.
  7. The energy associated with the motion and position of objects.
  8. The study of chemical reactions that produce or use electricity.
  9. The electrode where oxidation occurs and electrons leave in an electrochemical reaction.
  10. A fuel made from living or recently living materials such as plants or organic waste.
  11. A complex carbohydrate found in plant cell walls that provides structure and strength.
  12. A chemical reaction that absorbs energy from its surroundings.
  13. A process where microorganisms like yeast break down sugars to produce alcohol, gas, or other products without oxygen.
  14. An enzyme that breaks down cellulose into simpler sugars.
  15. A simple sugar used by cells as a main source of energy.
  16. A type of microorganism used in fermentation to convert sugars into alcohol and carbon dioxide.
  17. Fuel formed from the remains of ancient plants and animals, such as coal, oil, or natural gas.
  18. A negatively charged particle that moves around the nucleus of an atom.

37 Clues: A group of two or more atoms bonded together. • A closed path that allows electricity to flow. • The energy an object has because of its motion. • The simplest type of sugar molecule, such as glucose. • energy Stored energy that has the ability to do work. • An enzyme that breaks down starch into simpler sugars. • ...

CHAPTER 8 2023-11-02

CHAPTER 8 crossword puzzle
Across
  1. represents the reactants and products of a chemical reaction by their symbols or formulas
  2. a substance combines with oxygen, releasing a large amount of energy in the form of light and heat
  3. is a small whole number that appears in front of a formula in a chemical equation
  4. two or more substances combine to form a new compound
  5. one element replaces a similar element in a compound
  6. A solid that is produced as a result of a chemical reaction in solution and that separates from the solution
Down
  1. the ions of two compounds exchange places in an aqueous solution to form two new compounds
  2. a single compound undergoes a reaction that produces two or more simpler substances
  3. is a list of elements organized according to the ease with which the elements undergo certain chemical reactions
  4. an equation in which the reactants and products in a chemical reaction are represented by words
  5. the decomposition of a substance by an electric current is called electrolysis
  6. represents, with symbols and formulas, the identities and relative amounts of the reactants and products in a chemical reaction
  7. is the process by which one or more substances are changed into one or more different substances

13 Clues: one element replaces a similar element in a compound • two or more substances combine to form a new compound • the decomposition of a substance by an electric current is called electrolysis • is a small whole number that appears in front of a formula in a chemical equation • a single compound undergoes a reaction that produces two or more simpler substances • ...

Ch 13 B1 Mia Cassady 2019-03-05

Ch 13 B1 Mia Cassady crossword puzzle
Across
  1. A chemical that accepts a hydrogen ion
  2. A substance that lowers the activation energy of a chemical reaction
  3. reaction A net absorption of energy
  4. energy The amount of energy required to pull two bonded atoms apart
  5. Reaction One or more new compounds are formed as a result of the rearrangement of atoms
Down
  1. rate How quickly the concentration of reactants decreases and how quickly the concentration of products increases
  2. reaction A net release of energy
  3. behaves as an acid or a base
  4. A chemical that donates a hydrogen ion
  5. of mass conservation No atoms are gained or lost during any reaction

10 Clues: behaves as an acid or a base • reaction A net release of energy • reaction A net absorption of energy • A chemical that accepts a hydrogen ion • A chemical that donates a hydrogen ion • A substance that lowers the activation energy of a chemical reaction • energy The amount of energy required to pull two bonded atoms apart • ...

Chemistry crossword 2021-07-12

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

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

Changes in states and chemical reactions 2024-02-27

Changes in states and chemical reactions crossword puzzle
Across
  1. a measure of how easily a substance bursts into flame
  2. a reaction in which energy is absorbed, causing it to get colder
  3. the substances that participate in the reaction
  4. the ability to move heat or electricity
  5. any substance that increases the rate of a reaction without being a part of the reaction
Down
  1. a substance made up of two or more different chemical elements
  2. describes the amount of acid in a substance
  3. the average kinetic energy of atoms or molecules within a substance
  4. water in gas form
  5. a measure of how quickly a material can catch fire
  6. gas to liquid
  7. a measure of how easily a substance undergoes a chemical reaction
  8. a reaction in which energy is released, causing it to get warmer
  9. the substances formed by the reaction

14 Clues: gas to liquid • water in gas form • the substances formed by the reaction • the ability to move heat or electricity • describes the amount of acid in a substance • the substances that participate in the reaction • a measure of how quickly a material can catch fire • a measure of how easily a substance bursts into flame • ...

science 2012-12-12

science crossword puzzle
Across
  1. we breathe this
  2. two elements chemically bonded
  3. gives out heat
  4. single type of atom
  5. we can use a .... in a reaction
  6. something that reacts with other things
  7. if water cools down it becomes a....
  8. makes up everything
  9. this makes up over 70% of air
  10. this process breaks bonds in compounds
  11. chemical reaction are what we did in....
  12. this attracts some metals
Down
  1. we can write chemical reactions in a ......
  2. a invisible force in magnets
  3. a magnet that can be turned on and off
  4. if water is at room temp it is a .....
  5. if a substance is .......... it emits radiation
  6. two elements mixed
  7. takes in heat
  8. we get burn this to get a white powder

20 Clues: takes in heat • gives out heat • we breathe this • two elements mixed • single type of atom • makes up everything • this attracts some metals • a invisible force in magnets • this makes up over 70% of air • two elements chemically bonded • we can use a .... in a reaction • if water cools down it becomes a.... • a magnet that can be turned on and off • ...

Physical and Chemical Change 2019-11-07

Physical and Chemical Change crossword puzzle
Across
  1. A solid formed during a chemical change
  2. A change that does not result in a new substance being produced
  3. A change that results in a new substance being formed
  4. The substances formed in chemical reactions
  5. The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun
  6. A change of state where a liquid changes to a gas at the surface of the liquid
  7. The change of state from liquid to solid
  8. The starting substances in chemical reactions
  9. A simple chemical equation where chemicals are represented by their names
  10. A change of state where a liquid is heated and changes to a gas within the liquid
  11. A decrease in size
Down
  1. Evaporation of solvent from a solution to leave solute behind as crystals
  2. The change of state when a solid is heated and forms a liquid
  3. An increase in size
  4. A change of state where a gas is cooled and forms a liquid
  5. A chemcial reaction that converts oxygen and glucose into water and carbon dioxide while releasing energy.
  6. A change of state from gas to solid
  7. Any chemical reaction where a substance burns in oxygen to produce light and heat

18 Clues: A decrease in size • An increase in size • A change of state from gas to solid • A solid formed during a chemical change • The change of state from liquid to solid • The substances formed in chemical reactions • The starting substances in chemical reactions • A change that results in a new substance being formed • A change of state where a gas is cooled and forms a liquid • ...

chem 4.1 2021-10-14

chem 4.1 crossword puzzle
Across
  1. The numbers that are placed in fornt of chemical formulas are called?
  2. A substance that undergoes a chemical reaction is called?
  3. When a non-metallic oxide reacts with ___, the product is an acid.
  4. A substance that is formed in a chemical reaction is called?
  5. The law of ____ of mass states that in any chemical reaction, the mass of the products is always equal to the mass of the reactants.
  6. This lists the chemical formula of each reactant on the left, separated by a + sign if more than one reactant is involved, followed by an arrow.
  7. One contributor to acid rain is ___ ___ which forms when sulfur trioxide reacts with water.
Down
  1. A compound breaks down into elements or other compounds.
  2. A balanced __ equation reflects the law of conservations of mass.
  3. When two or more elements or compounds combine to form a new substance.
  4. What identifies the reactants and products of a chemical reaction?
  5. Metal hydroxides belong to a group of compounds called?
  6. When ___ ___ is heated to a high temperature, if forms dinitrogen monoxide & water according.

13 Clues: Metal hydroxides belong to a group of compounds called? • A compound breaks down into elements or other compounds. • A substance that undergoes a chemical reaction is called? • A substance that is formed in a chemical reaction is called? • A balanced __ equation reflects the law of conservations of mass. • ...

Science 2025-12-19

Science crossword puzzle
Across
  1. protons in an atom
  2. The falling to earth of any form of water
  3. Bubbles,rust, or heat release
  4. A chemical property related to fire
  5. process where one substance changes to another
  6. Result of manufacturing
  7. Positively charged particle in an atom
  8. A result of a combination
  9. A mixture that is not uniform throughout
  10. Types of mixture where components are indistinguishable
Down
  1. Temperature at which a solid becomes liquid
  2. observant trait of matter such as conductivity or malleability
  3. A measure of chemical responsiveness
  4. blocks of matter
  5. change in state, not substance
  6. substances that changes in a chemical reaction
  7. Ability to burn, chemical reaction,
  8. Total kinetic energy of all the particles in a substance
  9. temperature at which a liquid turns to a gas
  10. Currect carrierin a conductor
  11. Two or more atoms bonded
  12. A nucleon without an electric charge
  13. Type of matter made of a single elemnt or compound
  14. The property of being dense
  15. A pure chemical substance

25 Clues: blocks of matter • protons in an atom • Result of manufacturing • Two or more atoms bonded • A result of a combination • A pure chemical substance • The property of being dense • Bubbles,rust, or heat release • Currect carrierin a conductor • change in state, not substance • Ability to burn, chemical reaction, • A chemical property related to fire • ...

` 2026-01-28

` crossword puzzle
Across
  1. When no new substances are formed in a reaction, ________ change
  2. To make different
  3. When a new substance is formed in a reaction, ________ change
  4. How cold or hot something is
  5. The new substances formed as a result of a chemical reaction
  6. Form of physical change involving the heating of a substance to a liquid
  7. Law of Conservation of ____
Down
  1. A process describing a change of a substance into another
  2. Scientific law stating mass of substances in a chemical reaction have the same mass before and after the reaction.
  3. The starting substances in a chemical reaction that undergo change

10 Clues: To make different • Law of Conservation of ____ • How cold or hot something is • A process describing a change of a substance into another • The new substances formed as a result of a chemical reaction • When a new substance is formed in a reaction, ________ change • When no new substances are formed in a reaction, ________ change • ...

CC, CR and Photosynthesis 2025-01-27

CC, CR and Photosynthesis crossword puzzle
Across
  1. the chemical formula for glucose
  2. cellular respiration without oxygen
  3. usable energy produced in cellular respiration
  4. used as energy in photosynthesis
  5. what comes out of a chemical reaction
  6. using the sun's energy to make glucose
  7. the data or what is measured in an experiment
  8. eats other organisms
  9. the site of cellular respiration
Down
  1. the gas produced as a waste product in photosynthesis
  2. mass cannot be created or destroyed only transformed
  3. the burning of fossil fuels
  4. breaks down glucose to produce energy
  5. reactant in photo synthesis, product of respiration
  6. makes it's own food
  7. dead organisms broken down by fungi and bacteria
  8. the plants "food"
  9. Site of photosynthesis
  10. what goes into a chemical reaction
  11. cellular respiration with oxygen

20 Clues: the plants "food" • makes it's own food • eats other organisms • Site of photosynthesis • the burning of fossil fuels • the chemical formula for glucose • used as energy in photosynthesis • cellular respiration with oxygen • the site of cellular respiration • what goes into a chemical reaction • cellular respiration without oxygen • breaks down glucose to produce energy • ...

chemistry crossword 2017-11-10

chemistry crossword crossword puzzle
Across
  1. that have a density of 5 or higher e.g., copper, zinc, lead, mercury, cadmium,nickel heavy metals are one type of substance monitored to determine water quality
  2. change in the appearance or state of a substance that does not change the composition
  3. atom that has become electrically charged because it has lost or gained electrons a positive ion is an atom that has lost one or more electrons a negative ion is an atom that has gained on
  4. a material that electric charge can move through easily
  5. neutral particle in the nucleus of an atom
  6. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  7. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  8. a table in which the elements are organized by their physical and chemical properties
  9. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  10. an experiment in which one or more products of a chemical reaction can escape
  11. substance that helps a chemical reaction to proceed more quickly
Down
  1. positively charged center of an atom;contains protons and neutrons
  2. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  3. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  4. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  5. catalyst involved in chemical reactions in living things
  6. a reaction that takes place when two or more substances react to form new substances
  7. chemical combination of two or more elements in a specific ratio
  8. invisible negatively charged particle that orbits the nucleus of an atom
  9. substance that strongly resists the flow of electricity
  10. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  11. the sum of the number of protons and neutrons in an atom
  12. property that describes the physical appearance and composition of a substance
  13. new substance produced in a chemical reaction between reactants
  14. element that has both metallic and non-metallic properties

25 Clues: neutral particle in the nucleus of an atom • substance that strongly resists the flow of electricity • a material that electric charge can move through easily • catalyst involved in chemical reactions in living things • the sum of the number of protons and neutrons in an atom • element that has both metallic and non-metallic properties • ...

chemistry crossword 2017-11-10

chemistry crossword crossword puzzle
Across
  1. invisible negatively charged particle that orbits the nucleus of an atom
  2. an experiment in which one or more products of a chemical reaction can escape
  3. neutral particle in the nucleus of an atom
  4. element that has both metallic and non-metallic properties
  5. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  6. new substance produced in a chemical reaction between reactants
  7. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  8. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  9. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  10. a material that electric charge can move through easily
  11. property that describes the physical appearance and composition of a substance
  12. the sum of the number of protons and neutrons in an atom
  13. that have a density of 5 or higher e.g., copper, zinc, lead, mercury, cadmium,nickel heavy metals are one type of substance monitored to determine water quality
Down
  1. catalyst involved in chemical reactions in living things
  2. chemical combination of two or more elements in a specific ratio
  3. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  4. substance that helps a chemical reaction to proceed more quickly
  5. positively charged center of an atom;contains protons and neutrons
  6. change in the appearance or state of a substance that does not change the composition
  7. a table in which the elements are organized by their physical and chemical properties
  8. a reaction that takes place when two or more substances react to form new substances
  9. atom that has become electrically charged because it has lost or gained electrons a positive ion is an atom that has lost one or more electrons a negative ion is an atom that has gained on
  10. substance that strongly resists the flow of electricity
  11. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  12. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons

25 Clues: neutral particle in the nucleus of an atom • substance that strongly resists the flow of electricity • a material that electric charge can move through easily • catalyst involved in chemical reactions in living things • the sum of the number of protons and neutrons in an atom • element that has both metallic and non-metallic properties • ...

Physical & Chemical Properties and Reactions Vocab 2021-03-12

Physical & Chemical Properties and Reactions Vocab crossword puzzle
Across
  1. A new substance with unique chemical and physical properties formed when two or more elements are chemically bonded during a chemical reaction
  2. A substance that takes part in and undergoes change during a chemical reaction
  3. the simplest unit of a chemical compound that can exist, formed when two or more atoms join together chemically
  4. The process by which one or more substances change to produce one or more different substances
  5. Materials made from one or more natural substances that undergo a chemical process
Down
  1. A substance produced during a chemical reaction
  2. substance A single substance, either an element or a compound, with definite composition and properties
  3. insoluble solid formed from a chemical reaction
  4. The smallest particle of an element; made of electrons, protons, and neutrons
  5. Method or means of changing one or more chemicals or chemical compounds
  6. Large amounts

11 Clues: Large amounts • A substance produced during a chemical reaction • insoluble solid formed from a chemical reaction • Method or means of changing one or more chemicals or chemical compounds • The smallest particle of an element; made of electrons, protons, and neutrons • A substance that takes part in and undergoes change during a chemical reaction • ...

Chemical Reactions Unit 2025-02-12

Chemical Reactions Unit crossword puzzle
Across
  1. a substance that cannot be broken down
  2. Reaction when substances interact and form a new substance
  3. the starting substances in a chemical reaction
  4. the smallest particle of a chemical element
  5. the new substance formed in a chemical reaction
  6. when two things are not equal
  7. the small number to the right of a symbol
Down
  1. a solid that forms in a solution
  2. one or two letters to represent an element
  3. when two things are equal
  4. a substance formed of two or more elements
  5. a statement with an "=" in it

12 Clues: when two things are equal • a statement with an "=" in it • when two things are not equal • a solid that forms in a solution • a substance that cannot be broken down • the small number to the right of a symbol • one or two letters to represent an element • a substance formed of two or more elements • the smallest particle of a chemical element • ...

Chemical Reactions 2023-02-27

Chemical Reactions crossword puzzle
Across
  1. Starts a chemical reaction.
  2. Involve observable changes.
  3. Tells us how many of each atom is in the compound.
  4. Absorbs Energy.
  5. Mass is neither created nor destroyed during chemical reactions.
  6. A short easy way to show a chemical reaction using symbols instead of words.
Down
  1. Releases Energy.
  2. Can exchange energy and matter vs just energy.
  3. Multiply this number by all the subscripts in the formula.
  4. What you end with.
  5. What you start with.
  6. A solid formed in a chemical reaction that is different from either of the reactants.

12 Clues: Absorbs Energy. • Releases Energy. • What you end with. • What you start with. • Starts a chemical reaction. • Involve observable changes. • Can exchange energy and matter vs just energy. • Tells us how many of each atom is in the compound. • Multiply this number by all the subscripts in the formula. • Mass is neither created nor destroyed during chemical reactions. • ...

Chapter 13 2020-03-03

Chapter 13 crossword puzzle
Across
  1. In an ___thermic reaction there is a net release of energy.
  2. During a chemical reaction a __________ may form.
  3. Larger ______ ___ will make a chemical reaction go faster.
  4. When reaction and it's reverse act at the same rate.
  5. A+B=AB
  6. In an ___thermic reaction there is a net absorption of energy.
Down
  1. AB+CD=AD+CB
  2. It is difficult to ________ a chemical reaction.
  3. Makes reactions happen faster.
  4. the amount of energy required to pull two bonded atoms apart.

10 Clues: A+B=AB • AB+CD=AD+CB • Makes reactions happen faster. • It is difficult to ________ a chemical reaction. • During a chemical reaction a __________ may form. • When reaction and it's reverse act at the same rate. • Larger ______ ___ will make a chemical reaction go faster. • In an ___thermic reaction there is a net release of energy. • ...

chemistry crossword 2017-11-07

chemistry crossword crossword puzzle
Across
  1. compound that dissolves in water to form a solution with a pH lower than 7
  2. principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
  3. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  4. measure of atomic mass; 1 amu is equal to 1/12 the mass of a carbon 12 atom
  5. chemical combination of two or more elements in a specific ratio
  6. catalyst involved in chemical reactions in living things
  7. chemical reaction that releases energy
  8. an experiment in which all reactants and all products of a chemical reaction are accounted for
  9. slow chemical change that occurs when oxygen in the air reacts with a metal
  10. number of protons in the nucleus of one atom of an element
Down
  1. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  2. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  3. colourless, odourless gas;produced by incomplete combustion of chemicals containing carbon (e.g. hydrocarbons); major source: motor vehicles
  4. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  5. mass mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
  6. change of state from a gas to a liquid
  7. ability of a substance to conduct electricity or heat
  8. a reaction that takes place when two or more substances react to form new substances
  9. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  10. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  11. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  12. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  13. change of state from a gas to a solid

23 Clues: change of state from a gas to a solid • change of state from a gas to a liquid • chemical reaction that releases energy • ability of a substance to conduct electricity or heat • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • chemical combination of two or more elements in a specific ratio • ...

Chemical Reactions Unit 2025-02-12

Chemical Reactions Unit crossword puzzle
Across
  1. a substance that cannot be broken down
  2. Reaction when substances interact and form a new substance
  3. the starting substances in a chemical reaction
  4. the smallest particle of a chemical element
  5. the new substance formed in a chemical reaction
  6. when two things are not equal
  7. the small number to the right of a symbol
Down
  1. a solid that forms in a solution
  2. one or two letters to represent an element
  3. when two things are equal
  4. a substance formed of two or more elements
  5. a statement with an "=" in it

12 Clues: when two things are equal • a statement with an "=" in it • when two things are not equal • a solid that forms in a solution • a substance that cannot be broken down • the small number to the right of a symbol • one or two letters to represent an element • a substance formed of two or more elements • the smallest particle of a chemical element • ...

Matter: Property and Changes 2024-11-19

Matter: Property and Changes crossword puzzle
Across
  1. the energy released when atoms form bonds.
  2. law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction.
  3. the ability of a type of matter to burn easily.
  4. the amount of space a substance takes up.
  5. a process in which atoms of one or more substances rearrange to form one or more new substances.
  6. the mass per unit volume of a substance.
  7. a substance produced by a chemical reaction.
  8. occurs when substances react with oxidizing agents, changing it to a new substance.
  9. the amount of matter in an object.
  10. more energy is released when the products form than is required to break the bonds in the reactants.
Down
  1. a characteristic of matter that can be observed as it changes to a different type of matter.
  2. a number placed in front of an element symbol or chemical formula in an equation.
  3. a change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties.
  4. a starting substance in a chemical reaction.
  5. a characteristic of matter that can be observed or measured without changing the identity of the matter.
  6. more energy is required to break the bonds of the reactants than is released when products form.
  7. occurs when a substance reacts with another substance, changing it into a new substance.

17 Clues: the amount of matter in an object. • the mass per unit volume of a substance. • the amount of space a substance takes up. • the energy released when atoms form bonds. • a starting substance in a chemical reaction. • a substance produced by a chemical reaction. • the ability of a type of matter to burn easily. • ...