chemical reaction Crossword Puzzles

Enzyme 2026-03-03

Enzyme crossword puzzle
Across
  1. reaction that absorbs free energy from the surrounding
  2. the sum of all the chemical reactions occurring in that cell.
  3. The energy required to start any reaction
  4. model that describes a flexible active site that change shape, or conforms, to the substrate as they bond together
  5. process of breaking down large molecules into smaller ones.
  6. model that describes the active site as having a set shape
Down
  1. process of making large molecules from smaller ones
  2. reaction that has a net release of free energy
  3. a substance that change in chemical reaction
  4. enzyme that required an additional non-protein molecule
  5. the final substance that left out in a chemical reaction
  6. molecules reduce or stop the enzyme from functioning.

12 Clues: The energy required to start any reaction • a substance that change in chemical reaction • reaction that has a net release of free energy • process of making large molecules from smaller ones • molecules reduce or stop the enzyme from functioning. • reaction that absorbs free energy from the surrounding • enzyme that required an additional non-protein molecule • ...

CW-PC Prop & Changes 2025-01-13

CW-PC Prop & Changes crossword puzzle
Across
  1. Mass is not created or destroyed…it only changes forms
  2. Descriptive adjectives and measurements done without changing the samples composition
  3. Chemical bonds between atoms are broken or formed creating new substances with different properties
  4. Cannot change back; Ex. explosion or fire
  5. Right of arrow; produced at the end of the reaction
Down
  1. Has the possibility of a chemical reaction Ex. my bike can rust
  2. Change in size, shape, or state of matter; “it still is…” or “Change it back”
  3. Changes in temperature, sound, or light
  4. Solid that forms from a solution Ex. Milk & vinegar = cottage cheese
  5. No reaction
  6. Left of arrow; present at the start of the reaction
  7. yields (-->) in chemical reaction; means “reacts to produce”

12 Clues: No reaction • Changes in temperature, sound, or light • Cannot change back; Ex. explosion or fire • Left of arrow; present at the start of the reaction • Right of arrow; produced at the end of the reaction • Mass is not created or destroyed…it only changes forms • yields (-->) in chemical reaction; means “reacts to produce” • ...

Cross word 2024-12-02

Cross word crossword puzzle
Across
  1. reaction- A chemical reaction that releases thermal energy.
  2. a substance or molecule that participates in a chemical reaction
  3. Known as the "Middle life" around 252 to 66 million years ago.
Down
  1. A chemical reaction that absorbs energy from it's enviorment
  2. A substance or molecule that forms in a chemical reaction.
  3. the mostly solid bulk of Earth's interior.
  4. water or the amount of water that falls to the earth as hail, mist, rain, sleet, or snow.
  5. any of the large bodies that revolve around the Sun in the solar system
  6. reaction- A process that occurs when two or more molecule interact to form new molecules
  7. The central or innermost portion of the Earth, lying below the mantle and probably consisting of iron and nickel.

10 Clues: the mostly solid bulk of Earth's interior. • A substance or molecule that forms in a chemical reaction. • reaction- A chemical reaction that releases thermal energy. • A chemical reaction that absorbs energy from it's enviorment • Known as the "Middle life" around 252 to 66 million years ago. • a substance or molecule that participates in a chemical reaction • ...

Evidence of Chemical Changes 2025-09-21

Evidence of Chemical Changes crossword puzzle
Across
  1. When a reaction absorbs heat and becomes cooler than the surrounding area
  2. A new substance that is created by the rearranging of atoms after a chemical reaction
  3. When a substance undergoes a change in appearance, but a new substance is not created
  4. An element or compound that exists prior to a chemical reaction
  5. When elements or compounds combine to create new substances
Down
  1. the symbol in a chemical reaction that shows the passage of time
  2. Insoluble solids that emerge out of a liquid solution during a chemical reaction
  3. When a reaction emits heat and becomes warmer than the surrounding area
  4. A sign of a chemical change; can be in the form of light or heat
  5. Does not dissolve in liquid

10 Clues: Does not dissolve in liquid • When elements or compounds combine to create new substances • An element or compound that exists prior to a chemical reaction • the symbol in a chemical reaction that shows the passage of time • A sign of a chemical change; can be in the form of light or heat • When a reaction emits heat and becomes warmer than the surrounding area • ...

Chemistry Puzzle 2022-01-28

Chemistry Puzzle crossword puzzle
Across
  1. another word for atomic mass
  2. a chemical bond of only one type of element
  3. the smallest unit of mass
  4. a unit of atoms, compounds, elements or other pieces of matter
  5. a reaction that produces CO2 and H2O
  6. a reaction where atoms switch places
Down
  1. a reaction where atoms fall away from one another
  2. a reaction where atoms bind together
  3. a row in the periodic table
  4. notation that tells you how many of an element or compound there is
  5. a chemical bond of multiple types of atoms
  6. a chemical bond of multiple atoms (can be the same)

12 Clues: the smallest unit of mass • a row in the periodic table • another word for atomic mass • a reaction where atoms bind together • a reaction that produces CO2 and H2O • a reaction where atoms switch places • a chemical bond of multiple types of atoms • a chemical bond of only one type of element • a reaction where atoms fall away from one another • ...

Science T2 Recap 2025-06-16

Science T2 Recap crossword puzzle
Across
  1. Reaction where two or more substances combine to form one product
  2. Reaction where one compound breaks down into simpler substances
  3. A chemical reaction that produces heat and light
  4. Arrangement of electrons in an atom
  5. Gas essential for combustion to occur
Down
  1. A process in which substances change into new substances
  2. Negatively charged particle in an atom
  3. A pure substance made of only one kind of atom
  4. Substance formed as a result of a chemical reaction
  5. The loss of electrons in a chemical reaction

10 Clues: Arrangement of electrons in an atom • Gas essential for combustion to occur • Negatively charged particle in an atom • The loss of electrons in a chemical reaction • A pure substance made of only one kind of atom • A chemical reaction that produces heat and light • Substance formed as a result of a chemical reaction • ...

Chemistry - Back From Winter Break Recap 2026-01-09

Chemistry - Back From Winter Break Recap crossword puzzle
Across
  1. The elements/compounds on the left side of the chemical reaction equation
  2. When all your elements/compounds are "happy"
  3. This reaction occurs when...Carbon, Hydrogen, and Oxygen --> H2O + CO2
  4. The name of the best cat in the world
  5. Your favorite teacher
Down
  1. State of balance
  2. This reaction occurs when...element + element --> compound
  3. This reaction occurs when...compound --> element + element
  4. The elements/compounds on the right side of the chemical reaction equation
  5. Elements to the right of the "staircase"
  6. A compound that shares electrons
  7. Elements to the left of the "staircase"
  8. A compound that gives/receives electrons

13 Clues: State of balance • Your favorite teacher • A compound that shares electrons • The name of the best cat in the world • Elements to the left of the "staircase" • Elements to the right of the "staircase" • A compound that gives/receives electrons • When all your elements/compounds are "happy" • This reaction occurs when...element + element --> compound • ...

BIOCOMBUSTIBLES 2024-03-13

BIOCOMBUSTIBLES crossword puzzle
Across
  1. Raw materials used for biofuel production, such as crops, residues, or organic waste.
  2. Is the total heat content of a system, denoted by the symbol "H."Stoichiometry: The calculation of reactants and products in chemical reactions based on balanced equations, helping determine quantities and relationships in a reaction.
  3. The conversion of sugars into alcohol or organic acids by microorganisms, often used in biofuel production.
  4. Derived from vegetable oils or animal fats, biodiesel is an eco-friendly alternative to traditional diesel fuel.
  5. Microbial breakdown of organic matter to produce biogas, a process common in anaerobic digesters.
  6. Microscopic aquatic plants that can be used to produce biofuels due to their high oil content.
  7. Energy sources that can be replenished naturally, like solar, wind, and bioenergy.
  8. Processes involving the use of heat to convert biomass into biofuels, such as gasification and pyrolysis.
  9. Chemical reaction converting fats or oils into biodiesel and glycerol.
  10. Thermal decomposition of biomass in the absence of oxygen, producing bio-oil, gas, and biochar.
  11. Refers to a type of combustible material that remains in a solid state at room temperature and is used as a source of energy through combustion
  12. Refers to biofuels made from non-edible plant materials like wood, grass, or agricultural residues.
  13. The process of converting biomass into a gaseous fuel, like synthesis gas
Down
  1. The calculation of reactants and products in chemical reactions based on balanced equations, helping determine quantities and relationships in a reaction.
  2. Alcohol produced by fermenting sugars, commonly used as a biofuel for vehicles.
  3. Refers to plant materials rich in cellulose and lignin, often used in the production of advanced biofuels.
  4. A chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.
  5. A chemical reaction that releases heat to its surroundings, causing an increase in temperature.
  6. Chemical process breaking down complex molecules into simpler ones using water, commonly used in biofuel production.
  7. Are solid, liquid, or gaseous materials that release energy through a process called combustion, which releases energy into an oxygenated environment
  8. Are those renewable fuels that are obtained through natural resources or organic waste, both animal and plant

21 Clues: Chemical reaction converting fats or oils into biodiesel and glycerol. • The process of converting biomass into a gaseous fuel, like synthesis gas • Alcohol produced by fermenting sugars, commonly used as a biofuel for vehicles. • Energy sources that can be replenished naturally, like solar, wind, and bioenergy. • ...

Midterm crossword 2024-12-16

Midterm crossword crossword puzzle
Across
  1. A set of two or more Lewis Structures that collectively describe the electronic bonding of a single polytomic species. The actual structure of the polyatomic ion is a combination of the resonance structures.
  2. the lowest allowed energy state of an atom, molecule, or ion.
  3. A substance that contains water molecule(s) within its structure.
  4. the branch of chemistry that deals with the study of the rate of chemical reactions
  5. a chemical formula showing the simplest ratio of elements present in a compound.
  6. Formed between atoms with different sized radii; the smaller atoms fill the spaces between the larger atoms.
  7. Illustrates the forces between two atoms as a function of distance in covalent bonding.
  8. a chemical compound formed when a acid gives a proton to a base
  9. the amount of energy required to remove an electron from an isolated atom.
Down
  1. the attractive or repulsive forces between entire molecules due to differences in charge
  2. a physical constant that describes the relationship between the energy of a photon and its frequency
  3. substance that is found in the same state as the reactants and is seen at both the beginning and ending of the reaction
  4. crystalline solids that are held together by the attraction between positively and negatively charged ions
  5. Formed between atoms with similar radii; one atom substitutes another in the lattice
  6. describes the strength of the electrostatic force (attraction or repulsion) between two charged objects.
  7. the rate of a chemical reaction at a specific moment in time.
  8. a chemical compound formed by the removal of a proton from an acid
  9. the sequence of elementary steps by which a chemical reaction occurs
  10. arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.
  11. the step that requires the highest amount of activation energy and determines the overall rate of the reaction
  12. the process of a molecule breaking into ions in a solution
  13. occurs when an atom, molecule, or ion loses one or more electrons in a reaction

22 Clues: the process of a molecule breaking into ions in a solution • the rate of a chemical reaction at a specific moment in time. • the lowest allowed energy state of an atom, molecule, or ion. • a chemical compound formed when a acid gives a proton to a base • A substance that contains water molecule(s) within its structure. • ...

Chemistry Crossword 2015-11-13

Chemistry Crossword crossword puzzle
Across
  1. an experiment in which all products of a chemical reaction are accounted for
  2. chemical combination of two or more elements in a specific ratio
  3. a colourless, odorless, poisonous gas
  4. substance that helps a chemical reaction proceed more quickly
  5. number of protons in the nucleus of one atom as an element
  6. the smallest part of an element that is representative of that element
  7. change that results when two or more substances react to form a new substance
  8. measure of atomic mass
  9. combination of symbols that represent a compound
  10. ability of a substance to conduct electricity or heat
  11. mass of one atom of an element calculated from the total number of protons, neutrons, and electrons in an atom
  12. atom that has become electrically charged because it lost or gained electrons
  13. principle that matter is not created or destroyed in a reaction
  14. group 1 elements in the periodic table, not including hydrogen; the most reactive of the elements
Down
  1. invisible negatively charged particle that orbits around the nucleus of an atom
  2. pure substance formed when at least one metal and one non-metal combine
  3. material that electric charge can move through easily
  4. pure substance that cannot be broken down into other substances
  5. group 2 elements in the periodic table: their reactivity is not as strong as that of alkili metals
  6. vertical column of elements in the periodic table
  7. a reaction that takes place when two or more substances to form a new substance
  8. group 17 elements in the periodic table: the most reactive non-metal
  9. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  10. energy stored in chemicals and released when chemicals react
  11. vertical column of elements in periodic table

25 Clues: measure of atomic mass • a colourless, odorless, poisonous gas • vertical column of elements in periodic table • combination of symbols that represent a compound • vertical column of elements in the periodic table • material that electric charge can move through easily • ability of a substance to conduct electricity or heat • ...

Chemistry Bonus Crossword! 2024-05-09

Chemistry Bonus Crossword! crossword puzzle
Across
  1. Smallest particle of an element
  2. The study of matter and the changes it undergoes
  3. The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reaction
  4. A neutral subatomic particle in an atoms nucleus that has a mass nearly equal to that of a proton
  5. States that the volume of a given amount of gas at a constant temperature varies inversely with the pressure
  6. Chemical reaction in which a greater amount of energy is required to break the existing bonds in the reactants than is released when the new bonds form in the product molecules
  7. The chart that organizes all the known elements
  8. The amount of a substance that contains 6.02x10^23 particles
  9. The SI unit of heat and energy
  10. Measure of the amount of matter
  11. Sub atomic particle in an atoms nucleus that has a positive charge of plus one
Down
  1. The process by witch a gas or vapor becomes a liquid
  2. The capacity to do work or produce heat
  3. Describes the physical behavior of an ideal gas in terms of the temperature, volume, and pressure and number of moles of a gas that are present
  4. An atom or bonded group of atoms with a positive or negative charge
  5. Negatively charged fast moving particle
  6. A form of matter that flows, has constant volume, and takes the shape of it's container
  7. Chemical reaction that occurs when a single compound breaks down into two or more elements or new compounds
  8. Chemical reaction in which more energy is released than is required to break bonds in the initial reaction
  9. Process in which vaporization occurs only at the surface of a liquid
  10. Ratio that compares the mass to the volume

21 Clues: The SI unit of heat and energy • Smallest particle of an element • Measure of the amount of matter • The capacity to do work or produce heat • Negatively charged fast moving particle • Ratio that compares the mass to the volume • The chart that organizes all the known elements • The study of matter and the changes it undergoes • ...

Mini-Plenary: rates of reaction crossword 2019-05-11

Mini-Plenary: rates of reaction crossword crossword puzzle
Across
  1. These are the molecules that form in a chemical reaction.
  2. Increasing the ____________ of reactants, will mean there are more molecules to collide into each other.
  3. These are molecules that react together in a chemical reaction.
  4. As temperature increases, reacts have more ______ energy to collide into one another.
  5. To increase the rate of a chemical reaction, brake the reactants up into _______ pieces. This increases the surface area.
  6. A high ________, will increase the rate of reaction.
Down
  1. _________ energy is the minimum energy required for a reaction to occur.
  2. In order for molecules to react, they must ______.
  3. A large surface area of reacts, would ______ the reaction time.
  4. A ________ is something that speeds up a chemical reaction without being used up itself.

10 Clues: In order for molecules to react, they must ______. • A high ________, will increase the rate of reaction. • These are the molecules that form in a chemical reaction. • A large surface area of reacts, would ______ the reaction time. • These are molecules that react together in a chemical reaction. • ...

Unit 16 2014-05-01

Unit 16 crossword puzzle
Across
  1. For a reaction to occur, the particles must collide, they must collide with the appropriate orientation, and they must collide with sufficient energy.
  2. In a chemical reaction, the state in which the rate of the forward reaction equals the rate of the reverse reaction, so that the relative concentrations of the reactants and products do not change with time.
  3. (of a chemical reaction or compound) occurring or formed with absorption of heat
  4. The sum of all the areas of all the faces or surfaces that enclose a solid.
  5. A measurement of how much solute exists within a certain volume of solvent
  6. (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
  7. something that brings about a change in something else
  8. Evolutionary timing methods based on the observation that at least some regions of genomes evolve at constant rates.
Down
  1. Result of diffusion where there is continuous movement of particles but no overall change in concentration
  2. (of a chemical reaction or compound) occurring or formed with evolution of heat
  3. rate at which reactants change into products over time
  4. Energy needed to get a reaction started
  5. A chemical reaction in which the products re-form the original reactants

13 Clues: Energy needed to get a reaction started • rate at which reactants change into products over time • something that brings about a change in something else • A chemical reaction in which the products re-form the original reactants • A measurement of how much solute exists within a certain volume of solvent • ...

Unit 10 Stoichiometry Vocabulary Crossword 2021-01-28

Unit 10 Stoichiometry Vocabulary Crossword crossword puzzle
Across
  1. reactant that is in short supply for a chemical reaction
  2. indicates the number of moles of each substance
  3. a starting element or compound in a chemical reaction
  4. reactant that is not used up completely in a reaction
  5. a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
Down
  1. element or compound at the end of a chemical reaction
  2. indicates the number of atoms of each element
  3. the process by which one or more substances change to produce one or more different substances
  4. calculation of quantities in chemical reactions
  5. maximum amount of product that can be produced from a given amount of reactant

10 Clues: indicates the number of atoms of each element • calculation of quantities in chemical reactions • indicates the number of moles of each substance • element or compound at the end of a chemical reaction • a starting element or compound in a chemical reaction • reactant that is not used up completely in a reaction • ...

Djenane Telfort 2022-03-08

Djenane Telfort crossword puzzle
Across
  1. lowest whole number ratio elements within a compound
  2. atoms, molecules, and formula units
  3. mass of one mole of a substance
  4. the amount of product actually produced in the experiment
  5. the substance that will be used up first in a chemical reaction
  6. multiple of an empirical formula
Down
  1. ratio between the number of moles of any two substances in a chemical reaction
  2. study of ratios within chemical reactions
  3. the starting substance in a chemical reaction
  4. reactants left over when a reaction stops
  5. the maximum amount of product that can be used or made based on the limiting reactant

11 Clues: mass of one mole of a substance • multiple of an empirical formula • atoms, molecules, and formula units • study of ratios within chemical reactions • reactants left over when a reaction stops • the starting substance in a chemical reaction • lowest whole number ratio elements within a compound • the amount of product actually produced in the experiment • ...

Isabele Henninger Unit 2 2025-03-25

Isabele Henninger Unit 2 crossword puzzle
Across
  1. scared of water
  2. quanity of energy
  3. the diffusion of water across a membrane
  4. formed to make a chemical reaction
  5. organs combined
  6. basic unit of matter
  7. allows substances to pass
  8. underlying substance
  9. organelles combined
Down
  1. the movement of molecules or ions across a membrane
  2. organ systems combined
  3. molecules naturally move from being clustered together to being spaced
  4. tissues combined
  5. substrates make a chemical reaction
  6. a molecule containing one hydrophilic head and two hydrophilic tails
  7. molecules combined
  8. cells combined
  9. protein
  10. doesn't need energy
  11. tendency to mix
  12. atoms combined
  13. take away qualities

22 Clues: protein • cells combined • atoms combined • scared of water • organs combined • tendency to mix • tissues combined • quanity of energy • molecules combined • doesn't need energy • take away qualities • organelles combined • basic unit of matter • underlying substance • organ systems combined • allows substances to pass • formed to make a chemical reaction • substrates make a chemical reaction • ...

Semester 1 Project 2022-12-13

Semester 1 Project crossword puzzle
Across
  1. unequal sharing of electrons
  2. variable that is changed
  3. smallest unit of matter
  4. energy absorbed
  5. no definite shape or volume
  6. variable that is observed/measured
  7. positive charge, located in nucleus
  8. made of two or more substances
  9. definite shape and volume
Down
  1. energy released
  2. definite volume, no definite shape
  3. equal sharing of electrons
  4. form in a chemical reaction
  5. electrons are given and taken
  6. electrons in outer energy level
  7. react in a chemical reaction
  8. electrons are shared
  9. negative charge, around nucleus
  10. no charge, located in nucleus
  11. # of protons + # of neutrons

20 Clues: energy released • energy absorbed • electrons are shared • smallest unit of matter • variable that is changed • definite shape and volume • equal sharing of electrons • form in a chemical reaction • no definite shape or volume • unequal sharing of electrons • react in a chemical reaction • # of protons + # of neutrons • electrons are given and taken • no charge, located in nucleus • ...

Spelling Words 2017-11-08

Spelling Words crossword puzzle
Across
  1. Something that is reversible
  2. What you need to achieve something
  3. what is everywhere
  4. science topic
  5. you can control your temper
  6. Water,Carbon dioxide ...
  7. To be grateful for something
  8. a type of reaction
  9. water
  10. being knowledgeable
  11. a type of variable
Down
  1. person who studies about science
  2. being curious
  3. same as the split strategy in math
  4. a small object which involves volume or mass
  5. Can be chemical or physical
  6. forgiving people
  7. control,dependent or independent
  8. character strength topic about achieving
  9. To never give up
  10. Our current unit

21 Clues: water • being curious • science topic • forgiving people • To never give up • Our current unit • what is everywhere • a type of reaction • a type of variable • being knowledgeable • Water,Carbon dioxide ... • Can be chemical or physical • you can control your temper • Something that is reversible • To be grateful for something • person who studies about science • control,dependent or independent • ...

C7-9 2021-11-04

C7-9 crossword puzzle
Across
  1. The reaction used to break longer hydrocarbons into more useful smaller hydrocarbons.
  2. Separating a liquid from a mixture by evaporation and condensation.
  3. A reaction which absorbs less energy than it releases.
  4. A reaction where the products can react to re-form the reactants.
  5. Breaking down a compound using heat.
  6. A hydrocarbon with no double bonds.
  7. The principle stating how changes to an environment will change the equilibrium point of a reversible reaction.
Down
  1. A reaction which absorbs more energy than it releases.
  2. the point in a reversible reaction at which the forward and backward rates of reaction are the same
  3. a substance that speeds up a chemical reaction by providing a different pathway for the reaction that has a lower activation energy.
  4. The energy required to break the bonds necessary for a reaction to take place.
  5. A hydrocarbon with at least one Carbon to Carbon double bond.
  6. A special type of distillation involving separating several liquids based on the temperature they condense at.
  7. A chemical only containing carbon and hydrogen.

14 Clues: A hydrocarbon with no double bonds. • Breaking down a compound using heat. • A chemical only containing carbon and hydrogen. • A reaction which absorbs more energy than it releases. • A reaction which absorbs less energy than it releases. • A hydrocarbon with at least one Carbon to Carbon double bond. • ...

CHEMISTRY 2023-05-21

CHEMISTRY crossword puzzle
Across
  1. a pure substance that forms when two or more elements join chemically in a fixed proportion.
  2. the basic building block of most of the matter around us.
  3. matter that has the same chemical composition throughout and cannot be separated into its parts by physical means.
  4. a process used to separate the parts of a mixture by particle size.
  5. the tendency of a substance to undergo chemical changes.
  6. matter made up of two or more substances that are not joined chemically.
  7. a code, usually made up of one or two letters, used to represent an element.
  8. a solid that forms during a chemical reaction that takes place in a solution.
  9. a mixture in which substances are evenly distributed.
  10. a vertical column in the periodic table.
  11. a measure of an atom's mass that is equal to the number of protons & neutrons in the atom's nucleus.
  12. a substance that is present at the beginning of a chemical reaction.
  13. a particle with no charge, found in the nucleus of an atom.
  14. a chart that organizes information about all the known elements according to their properties.
  15. a characteristic of a substance that cannot be observed without changing the identity of the substance.
  16. an element that does not conduct heat or electricity well and is dull and brittle.
  17. a group of two or more atoms held together by chemical bonds.
  18. a process by which elements and compounds combine to form new substances.
  19. a horizontal row in the periodic table.
  20. a method for separating solids from liquids in a solution.
  21. a description of a chemical reaction using chemical formulas, subscripts, and coefficients.
Down
  1. the scientific principle that matter is neither created nor destroyed during a chemical reaction.
  2. a number that tells how many atoms of each element are in a molecule.
  3. one of the basic substances that combine to form all other substances; a substance that cannot be broken down into simpler means.
  4. the center of an atom, containing protons and neutrons.
  5. a group of chemical symbols and numbers that shows the number of atoms of each element in a molecule.
  6. a negatively charged subatomic particle that is located outside the nucleus of an atom.
  7. a change that results in the formation of a new substance or substances.
  8. a change in a substance that does not change the chemical makeup of the substance.
  9. a mixture in which substances are not distributed evenly.
  10. a characteristic of a substance that can be observed directly or measured with a tool without changing the identity of the substance.
  11. a substance that is produced during a chemical reaction.
  12. the number of protons in the nucleus of an atom.
  13. a positively charged particle found in the nucleus of an atom.
  14. an element that has some properties of both metals and nonmetals.
  15. a number written before a chemical formula to show how many atoms or molecules of that substances are involved in a reaction.
  16. a method used to separate a dissolved solid from a liquid.
  17. an element that conducts heat & electricity well, is shiny, and can be hammered into sheets or drawn into wires.

38 Clues: a horizontal row in the periodic table. • a vertical column in the periodic table. • the number of protons in the nucleus of an atom. • a mixture in which substances are evenly distributed. • the center of an atom, containing protons and neutrons. • the tendency of a substance to undergo chemical changes. • a substance that is produced during a chemical reaction. • ...

Biomolecule Terms 2025-05-05

Biomolecule Terms crossword puzzle
Across
  1. The substance an enzyme acts on. They may be broken apart or put together. The reactant.
  2. Another name for a biomolecule. Needed by all living things.
  3. Make a reaction start faster
  4. A chemical reaction that joins two or more molecules together to form a larger molecule while also removing water. Occurs when monomers bond together to make polymers creating biomolecules.
  5. the process of making something, such as a new molecule or protein.
  6. A molecule that has all the genetic information for an organism. Includes directions for development, growth and reproduction of the organism.
  7. A restricted region of an enzyme molecule which binds to the substrate
  8. Releases energy by breaking down glucose and other foods in the presence of oxygen.
  9. Destruction of an enzyme by temperature or other factors.
Down
  1. occurs within a cell or between cells that regulates cell function.
  2. A substance that is present at the start of a chemical reaction and is altered during the reaction. What is put together to make something new.
  3. Substances found in all living things that are necessary for biological processes.
  4. Uses the energy of the sun to synthesize (make) organic compounds (sugars) from inorganic compounds (CO2 and water).
  5. A molecule that can be bonded to another identical molecule. The smallest part of a biomolecule.
  6. Fat tissues that help keep an organism warm.
  7. The minimum amount of energy required for a chemical reaction to occur
  8. the end result of a biological or chemical process, what was made or created.
  9. An organic compound that is a major component of lipids and a building block for the fat in the body.
  10. Proteins that act as a catalyst to accelerate a reaction. They are NOT permanently changed in the process, so they are reusable. The work with specific substrates. Their name end in -ASE
  11. a large molecule made up of monomers that are joined together.

20 Clues: Make a reaction start faster • Fat tissues that help keep an organism warm. • Destruction of an enzyme by temperature or other factors. • Another name for a biomolecule. Needed by all living things. • a large molecule made up of monomers that are joined together. • occurs within a cell or between cells that regulates cell function. • ...

Chemical Chameleon Crossword 2022-05-16

Chemical Chameleon Crossword crossword puzzle
Across
  1. hypothetical reactions to balance 9 down reaction (Hint:includes a hyphen)
  2. the type of reaction that forms a new substance, a blank reaction
  3. chemical that is corrosive to human tissue (Hint: chemical formula no capitals)
  4. chemical name for household sugar
  5. a blank stirrer widely used in labs
  6. a change in blank is a way to identify a chemical change
Down
  1. the color of Potassium Permanganate (KMnO4)when dissolved in water
  2. results in the gain of electrons and a decrease in charge
  3. another word for basic
  4. results in the loss of electrons and an increase in the charge
  5. a reaction in which one reactant is oxidized and one reactant is reduced at the same time

11 Clues: another word for basic • chemical name for household sugar • a blank stirrer widely used in labs • a change in blank is a way to identify a chemical change • results in the gain of electrons and a decrease in charge • results in the loss of electrons and an increase in the charge • the type of reaction that forms a new substance, a blank reaction • ...

Quarter Final 2 2025-12-11

Quarter Final 2 crossword puzzle
Across
  1. A new substance is made (burning, rusting, cooking).
  2. A chemical reaction where plants make their own food in the form of Glucose using sunlight.
  3. Thick, semi-solid layer with slow-moving rock.
  4. The final product made in a chemical reaction.
  5. Makes its own food through photosynthesis (plants).
  6. The starting materials in a chemical reaction.
Down
  1. The chemical reaction that cells use to break down sugar (glucose) and release energy in the form of ATP.
  2. Thin, solid outer layer where we live.
  3. The study of matter and how it interacts. This involves atoms, molecules and chemicals.
  4. Pure substances made of only one type of atom.
  5. Gets food by eating other organisms (animals).

11 Clues: Thin, solid outer layer where we live. • Pure substances made of only one type of atom. • Gets food by eating other organisms (animals). • Thick, semi-solid layer with slow-moving rock. • The final product made in a chemical reaction. • The starting materials in a chemical reaction. • Makes its own food through photosynthesis (plants). • ...

Chemistry Unit Study Guide 2016-02-10

Chemistry Unit Study Guide crossword puzzle
Across
  1. elements that are fragile, not malleable, not ductile, poor conductors, some are liquids
  2. elements that have full outer orbitals and do not mix well with other elements
  3. positively charged center of an atom
  4. particles found in the nucleus of an atom that carry a negative charge
  5. particles found in the nucleus of an atom that carry a neutral charge
  6. a thing that is composed of two or more separate elements
  7. chemical reaction that releases energy in the form of heat
  8. man who created the periodic table of elements
  9. the smallest part of an element that can't be broken down any further
  10. particles found in the nucleus of an atom that carry a positive charge
  11. eighteen columns on the P.T.- elements have the same number of valence electrons
  12. mass of a single atom of an element
  13. the basic substances that make up what we know of the universe
Down
  1. compounds formed by a chemical reaction
  2. electrons in the outermost orbital of an atom
  3. elements that are solid, shiny, good conductors, ductile, and malleable
  4. smallest form of a substance composed of one or more atoms
  5. matter can be changed, but total mass does not change
  6. number of protons and electrons in a single atom of an element
  7. short representation of an element
  8. substances initially present in a chemical reaction that are used during the reaction
  9. chemical reaction that absorbs energy, making it cold to the touch
  10. elements that are partial conductors, valuable in computer chips, and crosses between metals and non-metals
  11. seven rows on the P.T.- elements have the same number of orbitals
  12. reaction that occurs in which a layer of metal is bonded to the surface of another substance
  13. regions of space outside the nucleus of an atom where an electron may exist

26 Clues: short representation of an element • mass of a single atom of an element • positively charged center of an atom • compounds formed by a chemical reaction • electrons in the outermost orbital of an atom • man who created the periodic table of elements • matter can be changed, but total mass does not change • a thing that is composed of two or more separate elements • ...

Chapter 13 MBaker Crossword 2018-03-09

Chapter 13 MBaker Crossword crossword puzzle
Across
  1. A substance that increases the rate of a chemical reaction without itself being consumed by the chemical reaction
  2. Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration
  3. A deterioration of metal,typically caused by atmospheric oxygen
  4. Description of a chemical reaction in which there is a net release of energy
  5. A description in which the hydronium ion concentration is equal to the hydroxide ion concentration
  6. A reaction between a reaction and base
Down
  1. The new material formed in a chemical reaction
  2. Representation of a chemical reaction in which reactants are written to the left of an arrow that points to the products on the right
  3. A rapid exothermic oxidation-reduction reaction between a material molecular oxygen
  4. The amount of energy required to pull two bonded atoms apart,which is the same amount of energy released when two atoms are bonded together

10 Clues: A reaction between a reaction and base • The new material formed in a chemical reaction • A deterioration of metal,typically caused by atmospheric oxygen • Description of a chemical reaction in which there is a net release of energy • A rapid exothermic oxidation-reduction reaction between a material molecular oxygen • ...

Chemistry Unit 5 2024-03-05

Chemistry Unit 5 crossword puzzle
Across
  1. is a reactant in a chemical reaction that determines the amount of product that is formed
  2. condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs
  3. what is used to predict the amount of substances present in a reaction
  4. What you get in a chemical reaction
Down
  1. a substance that enters into and is altered in the course of a chemical
  2. a chemical equation that has the same number and type of atoms for each element on both sides of the equation
  3. molecules composed of only two atoms, of the same or different chemical elements
  4. What is the com parison of actual yield with the theoretical yield
  5. a conversion factor that relates the amounts in moles of any two substances in a chemical reaction
  6. ratio between the mass and the amount of substance of any sample of said compound
  7. The amount predicted to be produced from a stoichiometric calculation is

11 Clues: What you get in a chemical reaction • What is the com parison of actual yield with the theoretical yield • what is used to predict the amount of substances present in a reaction • a substance that enters into and is altered in the course of a chemical • The amount predicted to be produced from a stoichiometric calculation is • ...

Thermochemistry 2023-04-28

Thermochemistry crossword puzzle
Across
  1. Celsius A temperature scale based on 0° for the freezing point of water and 100° for the boiling point of water
  2. A substance that is present at the end of a chemical reaction
  3. Chemical reaction in which heat is absorbed
  4. An energy unit equal to the approximate amount of energy required to raise one gram of water by one degree Celsius or about 4.2 joules
  5. heat capacity The energy required to raise the temperature of one gram of a substance by one degree Celsius
  6. The process by which heat is transferred by movement of a heated fluid such as air or water
  7. energy Heat energy
  8. The process by which heat energy is transmitted through collisions between neighboring atoms or molecules
  9. A substance that changes when it is combined with another substance in a chemical reaction
Down
  1. Chemical reaction in which heat is given off
  2. of vaporization Conversion of a substance from the liquid or solid phase into the vapor phase
  3. The study of energy changes that occur during chemical reactions and changes in state
  4. energy The energy an object or particle has due to its motion
  5. of fusion The quantity of heat necessary to change 1g of a solid to a liquid with no temperature change
  6. energy The result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases.
  7. Energy that comes from a source and travels through space at the speed of light
  8. The standard international unit of thermodynamic temperature
  9. Unit of work or energy in the international system of units
  10. The measurement of heat changes

19 Clues: The measurement of heat changes • energy Heat energy • Chemical reaction in which heat is absorbed • Chemical reaction in which heat is given off • Unit of work or energy in the international system of units • The standard international unit of thermodynamic temperature • A substance that is present at the end of a chemical reaction • ...

crossword puzzle 2021-06-08

crossword puzzle crossword puzzle
Across
  1. proteins that act as catalysts within living cells
  2. a molecule acted upon by an enzyme
  3. the smallest functional unit of an organism
  4. a chemical that changes the rate of another chemical reaction
  5. process charging the structure of a portion
  6. the product of a chemical reaction
Down
  1. the amount of sub-component in a soliton
  2. a substance that effects the time of reaction
  3. Site a substrate combines or begins a chemical reaction
  4. the smallest unit of matter

10 Clues: the smallest unit of matter • a molecule acted upon by an enzyme • the product of a chemical reaction • the amount of sub-component in a soliton • the smallest functional unit of an organism • process charging the structure of a portion • a substance that effects the time of reaction • proteins that act as catalysts within living cells • ...

Chemical Reactions 2023-12-04

Chemical Reactions crossword puzzle
Across
  1. Is a form of physical change
  2. Anything that has Mass/Volume
  3. Uses formulas and symbols to show how atoms rearrange in a chemical reaction
  4. Substances that react at the start of a reaction
  5. Is an example of chemical reaction
Down
  1. Any substance that has a defined composition
  2. of matter Is an example of physical properties
  3. Substances formed at the end of a reaction
  4. Is a form of chemical change
  5. Can be changed in order to balance the equation

10 Clues: Is a form of physical change • Is a form of chemical change • Anything that has Mass/Volume • Is an example of chemical reaction • Substances formed at the end of a reaction • Any substance that has a defined composition • of matter Is an example of physical properties • Can be changed in order to balance the equation • Substances that react at the start of a reaction • ...

Topic 5: Organic Compounds Part II 2016-01-11

Topic 5: Organic Compounds Part II crossword puzzle
Across
  1. a substance that causes or accelerates a chemical reaction
  2. a region on en enzyme that binds to a protein or other substance during a reaction
  3. the process by which a messenger RNA molecule specifics the linear sequence of amino acids on a ribosome for protein synthesis
  4. a sequence of three nulcletides in a region of transfer RNA that recognizes a coding triplet of nucleotides in messenger RNA
  5. the process by which genetic information on a strand of DNA is used to synthesize a strand of complementary RNA
  6. both the substrate and an enzyme have specific geometric shapes that they fit into each other
  7. a pair of parallel helices intertwined about a common axis. Ex: DNA molecular structure
  8. any various proteins or substance produced by any living thing that acts as a catalyst to bring bout a chemical reaction
Down
  1. the substance acted upon by an enzyme
  2. a nucleotide triplet within messenger RNA that signals a termination
  3. a non protein compounds that is necessary for the functioning of an enzyme
  4. a minimum quantity of energy that the reacting species must posses in order to undergo a separate reaction
  5. a sequence of three nucleotides that together form a unit of genetic code. Ex: Like a DNA or RNA molecule
  6. first codon of a messenger transcript translated by a ribosome
  7. a substance that decreases the rate or stops a chemical reaction completely
  8. a compound consisting of a nucleoside linked to a phosphate group. Ex: basic unit of structure for DNA
  9. the condition of participating in or catalyzing only one or few chemical reaction
  10. destroy the characteristic properties of a protein or other by heat, acidity, or other effects the disrupt its molecular information

18 Clues: the substance acted upon by an enzyme • a substance that causes or accelerates a chemical reaction • first codon of a messenger transcript translated by a ribosome • a nucleotide triplet within messenger RNA that signals a termination • a non protein compounds that is necessary for the functioning of an enzyme • ...

Chem Vocab Unit 8 2025-03-06

Chem Vocab Unit 8 crossword puzzle
Across
  1. an ion that does not take part in the chemical reaction and is found in solution both before and after the reaction
  2. chemical equation that shows only those elements. Compounds, and ions that are directly involved in the chemical reaction
  3. the process where a solute dissolves in a solvent forming homogeneous mixture called a solution
  4. the ability of a substance to dissolve in another substance forming a solution
  5. a base that, upon dissolution in water, does not dissociate completely
  6. a chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance
  7. the measurement of the number of particles present in a given volume, often in a mixture or solution
  8. a technique where a solution of known concentration is used to determine the concentration of an unknown solution
  9. a group of ions commonly considered to be soluble in water, stands for Sodium, Nitrate, Ammonium, and Potassium ions
  10. refers to chemical solutions that have high concentrations of a large amount of solute in the solution
  11. a subclass of double ionic replacement/displacement reactions
  12. a chemical compound formed when an acid gives a proton (H^+) to a base
  13. visual or symbolic representation of ions in an aqueous solution or insoluble products( called complete or total equation)
  14. the transfer of electrons between species in a chemical reaction, where there is a process of gaining electrons or a decrease in the oxidation state by an element
  15. the point during titration when an indicator shows that the amount of the reactant necessary for complete reaction has been added to a solution
  16. raises the base to the log’s value to get the original number
Down
  1. it is any species that is capable of donating a proton
  2. a solution of known concentration that is added to another solution to determine the concentration of a second chemical species
  3. it is any species that is capable of accepting a proton
  4. the process where a neutral atom or molecule gains or loses electrons, transforming it into an electrically charged particle called an ion
  5. the power to which a base of 10 must be raised to obtain a number
  6. the separation of ions that occurs when a solid ionic compound dissolves
  7. an acid that lost its hydrogen ion
  8. acids that do not completely dissociate into their constituent ions when dissolved into solutions
  9. a substance to be deposited in solid form from a solution, the solid left
  10. a substance whose chemical constituents are being identified and measured
  11. the term for the aqueous solution that is present when the precipitate forms
  12. any acid that ionizes completely in solutions
  13. a long, graduated, glass tube marked with measurements and used in chemistry

29 Clues: an acid that lost its hydrogen ion • any acid that ionizes completely in solutions • it is any species that is capable of donating a proton • it is any species that is capable of accepting a proton • a subclass of double ionic replacement/displacement reactions • raises the base to the log’s value to get the original number • ...

Physical Science Semester 1 review 2020-12-05

Physical Science Semester 1 review crossword puzzle
Across
  1. the spontaneous process in which an atomic nucleus emits radiation
  2. this element radioactively decays into Lead
  3. number of electron energy levels and also the number of rows in the periodic table
  4. chemicals listed to the left of the arrow in a chemical reaction
  5. center of an atom
  6. atoms with the same number of protons but different number of neutrons
  7. adding this to a reaction can speed it up
  8. these gases do not react because they are completely stable on their own
  9. number of electrons the 2nd energy level can hold
  10. the bonding where electrons are transferred
  11. it takes the most energy to get this color
  12. ability of an atom to attract electrons to itself
  13. neutrons have this charge
  14. color with the lowest energy
  15. number of protons
  16. when a chemical reaction takes in heat
  17. anything that takes up space and has mass
  18. a charged particle
Down
  1. chemicals listed to the right of the arrow in a chemical reaction
  2. adding protons and neutrons
  3. when a chemical reaction releases energy
  4. when an electron gains energy, it moves from a grounded state to this state
  5. the middle part of the periodic table, which we colored red, are these metals
  6. Column 1 of the periodic table are these types of metals
  7. the reason atoms combine with each other
  8. the bonding where electrons are shared
  9. protons have this charge
  10. electrons have this charge
  11. orbit the nucleus
  12. father of the Periodic Table of Elements
  13. the amount of time it takes for one half of a sample to decay
  14. the conservation of ______ says that matter cannot be created or destroyed
  15. another name for electron energy levels
  16. outer electrons can be called this

34 Clues: center of an atom • orbit the nucleus • number of protons • a charged particle • protons have this charge • neutrons have this charge • electrons have this charge • adding protons and neutrons • color with the lowest energy • outer electrons can be called this • the bonding where electrons are shared • when a chemical reaction takes in heat • another name for electron energy levels • ...

Chemical Reactions And Associated Terms 2024-05-03

Chemical Reactions And Associated Terms crossword puzzle
Across
  1. New material formed in a chemical reactions.
  2. Reactions that release heat.
  3. Process in which a metal is attacked by moisture, acids etc.
  4. Process in which zinc is coated on iron to prevent rusting
  5. Reactions that absorb heat from surroundings.
  6. Substance that gets oxidized.
  7. Reaction in which a highly reactive metal displaces a less reactive metal.
  8. Substance that speeds up a chemical reaction.
  9. Equations that are not balanced.
  10. Reactions in which a substance gains oxygen or loses hydrogen.
  11. Reactions in which a substance gains hydrogen or loses oxygen.
  12. Equations that are balanced.
  13. Substance that gets reduced.
Down
  1. Reactions in which two reacting molecules exchange their ions.
  2. Arrangement of metals in the descending order of their reactivities.
  3. Type of decomposition in which heat is used for breaking down substances.
  4. Type of decomposition in which sunlight is used for breaking down substances.
  5. Reactions in which a single new product is formed by combining of reactants.
  6. Type of double displacement reaction in which a solid insoluble salt is formed.
  7. product produced when iron reacts with oxygen and water.
  8. Reactions in which both oxidation and reduction takes place.
  9. chemical substances that react to form a new substance.
  10. Type of decomposition in which electricity is used for breaking down substances.
  11. Reactions in which a complex molecule breaks down to form two or more simpler products.
  12. Type of double displacement reaction in which an acid reacts with a base to form salt and water.
  13. Process in which fats and oils are oxidized.
  14. New material formed in a chemical reaction but is not the main product.

27 Clues: Reactions that release heat. • Equations that are balanced. • Substance that gets reduced. • Substance that gets oxidized. • Equations that are not balanced. • New material formed in a chemical reactions. • Process in which fats and oils are oxidized. • Reactions that absorb heat from surroundings. • Substance that speeds up a chemical reaction. • ...

Enzyme Vocabulary 2022-09-16

Enzyme Vocabulary crossword puzzle
Across
  1. reaction or process accompanied by the release of heat
  2. a state of balance between opposing forces or actions
  3. a substance that takes part in and undergoes change during a reaction
  4. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  5. a substance that is present at the end of a chemical reaction
Down
  1. characterized by or formed with absorption of heat
  2. reaction, a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
  3. Energy, energy required for a chemical reaction to occur
  4. proteins that help speed up metabolism, or the chemical reactions in our bodies

9 Clues: characterized by or formed with absorption of heat • a state of balance between opposing forces or actions • reaction or process accompanied by the release of heat • Energy, energy required for a chemical reaction to occur • a substance that is present at the end of a chemical reaction • a substance that takes part in and undergoes change during a reaction • ...

Chemical Equations Crossword 2023-04-18

Chemical Equations Crossword crossword puzzle
Across
  1. Elements or compounds after a chemical reaction
  2. Matter can escape or enter
  3. Elements or compounds before a chemical reaction
  4. Matter cannot be created or destroyed
  5. Matter isn't allowed to enter or leave
  6. A number in front of a chemical formula
Down
  1. Process that changes one set of chemicals to another
  2. A number written slightly below and to the right of a chemical symbol
  3. Causes or speeds up a chemical change
  4. The arrow in a chemical reaction

10 Clues: Matter can escape or enter • The arrow in a chemical reaction • Causes or speeds up a chemical change • Matter cannot be created or destroyed • Matter isn't allowed to enter or leave • A number in front of a chemical formula • Elements or compounds after a chemical reaction • Elements or compounds before a chemical reaction • ...

unit 1 and 2 chemistry crossword 2024-09-24

unit 1 and 2 chemistry crossword crossword puzzle
Across
  1. The movement of thermal energy from one object to another.
  2. The branch of chemistry that deals with the energy changes in chemical reactions.
  3. Energy stored in the bonds of chemical substances.
  4. The total energy of the particles in an object due to their motion or position.
  5. A reaction that absorbs heat from its surroundings.
  6. A difference in the measure of how hot or cold something is.
  7. A state where no net heat flow occurs between systems.
  8. The science of measuring the heat of chemical reactions or physical changes.
  9. States that the total enthalpy change in a reaction is the same, no matter how the reaction is carried out.
  10. The transfer of energy through electromagnetic waves without the need for a medium.
  11. Everything outside the system being studied in thermodynamics.
  12. The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.
  13. Energy transferred between substances due to a temperature difference.
  14. The total heat content of a system.
Down
  1. The minimum energy required to start a chemical reaction.
  2. Heat transfer in a fluid through the movement of the fluid itself.
  3. The transition of a substance from one state of matter to another, like solid to liquid.
  4. A reaction that releases heat to its surroundings.
  5. A measure of the average kinetic energy of particles in a substance.
  6. Energy cannot be created or destroyed, only transformed.
  7. A measure of disorder or randomness in a system.
  8. The property of a material to conduct heat.
  9. The transfer of heat through direct contact between molecules.
  10. A unit of energy commonly used to measure food energy.
  11. The part of the universe being focused on in a thermodynamic study.

25 Clues: The total heat content of a system. • The property of a material to conduct heat. • A measure of disorder or randomness in a system. • Energy stored in the bonds of chemical substances. • A reaction that releases heat to its surroundings. • A reaction that absorbs heat from its surroundings. • A state where no net heat flow occurs between systems. • ...

Topic 5: Organic Compounds Part II 2016-01-11

Topic 5: Organic Compounds Part II crossword puzzle
Across
  1. a region on enzyme that binds to a protein or other substance during a reaction
  2. a sequence of three nucleotides in a region of transfer RNA that recognizes a coding triplet of nucleotides in messenger RNA
  3. any various proteins or substance produced by any living thing that acts as a catalyst to bring about a chemical reaction
  4. a sequence of three nucleotides that together form a unit of genetic code. Ex: Like a DNA or RNA molecule
  5. a minimum quantity of energy that the reacting species must posses in order to undergo a separate reaction
  6. a nucleotide triplet within messenger RNA that signals a termination
  7. a pair of parallel helices intertwined about a common axis. Ex: DNA molecular structure
  8. the process by which genetic information on a strand of DNA is used to synthesize a strand of complementary RNA
  9. the condition of participating in or catalyzing only one or few chemical reaction
  10. the substance acted upon by an enzyme
Down
  1. first codon of a messenger transcript translated by a ribosome
  2. the process by which a messenger RNA molecule specifics the linear sequence of amino acids on a ribosome for protein synthesis
  3. a non protein compounds that is necessary for the functioning of an enzyme
  4. both the substrate and an enzyme have specific geometric shapes that they fit into each other
  5. destroy the characteristic properties of a protein or other by heat, acidity, or other effects the disrupt its molecular information
  6. a substance that causes or accelerates a chemical reaction
  7. a compound consisting of a nucleoside linked to a phosphate group. Ex: basic unit of structure for DNA
  8. a substance that decreases the rate or stops a chemical reaction completely

18 Clues: the substance acted upon by an enzyme • a substance that causes or accelerates a chemical reaction • first codon of a messenger transcript translated by a ribosome • a nucleotide triplet within messenger RNA that signals a termination • a non protein compounds that is necessary for the functioning of an enzyme • ...

Enzymes 2023-11-10

Enzymes crossword puzzle
Across
  1. a chemical reaction that results in the loss of water to build a polymer
  2. Above optimal conditions, the enzyme will denature
  3. an enzyme that has lost its shape and function
  4. a chemical reaction that requires the use of water to break down a polymer
  5. a substance that binds to the active site on specified enzyme
Down
  1. Below, and above optimal conditions, the enzymes will denature
  2. the effect on product formation when an enzyme is denatured
  3. The effect of an enzyme on the rate of a chemical reaction
  4. Catalysts that speed up chemical reactions
  5. a condition in which the enzyme is functioning at its best
  6. A substance that is present at the end of a chemical reaction

11 Clues: Catalysts that speed up chemical reactions • an enzyme that has lost its shape and function • Above optimal conditions, the enzyme will denature • The effect of an enzyme on the rate of a chemical reaction • a condition in which the enzyme is functioning at its best • the effect on product formation when an enzyme is denatured • ...

Horoszewski Chapter 13 review. 2017-10-11

Horoszewski Chapter 13 review. crossword puzzle
Across
  1. Of mass conservation no atoms are gained or lost during any reaction.
  2. A substance that undergoes a chemical change.
  3. Combination or composition,in particular.
  4. A measure of the acidity of a solution;equal to the negative logarithm of the hydronium ion concentration.
  5. Reaction one half of an oxidation-reduction reaction,represented by an equation showing electrons as either reactants or products.
  6. A substance that donates hydrogen ions.
  7. A rapid exothermic oxidation-reduction reaction between a material and a molecular oxygen.
Down
  1. A substance that accepts hydrogen ions.
  2. Energy,Ea,is the minimum energy required to overcome the initial breaking of bonds in reactants.
  3. Reaction rate is how quickly the concentration of reactants decreases and how quickly the concentration of products increases.
  4. Catalyst is a substance that lowers the activation energy of a chemical reaction,which allows for the reaction to proceed at a faster rate.
  5. A substance that is the result of the chemical change.
  6. Energy the amount of energy required to pull two bonded atoms apart.

13 Clues: A substance that accepts hydrogen ions. • A substance that donates hydrogen ions. • Combination or composition,in particular. • A substance that undergoes a chemical change. • A substance that is the result of the chemical change. • Energy the amount of energy required to pull two bonded atoms apart. • ...

Equilibrium 2022-03-30

Equilibrium crossword puzzle
Across
  1. a type of thermodynamic system where mass is conserved within the boundaries of the system, but energy is allowed to freely enter or exit the system.
  2. A chemical reaction in which heat is absorbed
  3. a formula describing the statistical distribution of particles in a system among different energy levels.
  4. the equilibrium constant for a solid substance dissolving in an aqueous solution.
  5. a measure of the capacity of the system to do work.
  6. measures the relative amounts of products and reactants present during a reaction at a particular point in time.
  7. the interactions between energy sources within the Earth's environment.
  8. the sum of the system's internal energy and the product of its pressure and volume.
  9. an artificial nitrogen fixation process and is the main industrial procedure for the production of ammonia today
  10. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
Down
  1. the decrease in solubility of an ionic precipitate by the addition to the solution of a soluble compound with an ion in common with the precipitate.
  2. a principle of chemistry used to predict the effect of a change in conditions on chemical equilibria.
  3. the value of its reaction quotient at chemical equilibrium
  4. releases energy from the system to its surroundings, usually in the form of heat
  5. the ratio of product of concentration of the products to the product of concentration of the reactants, with each concentration term is raised to the power by its coefficient in overall balanced chemical equation
  6. a chemical equilibrium between a forward reaction and the reverse reaction where the rate of the reactions are equal.

16 Clues: A chemical reaction in which heat is absorbed • a measure of the capacity of the system to do work. • the value of its reaction quotient at chemical equilibrium • the interactions between energy sources within the Earth's environment. • releases energy from the system to its surroundings, usually in the form of heat • ...

Chemical Change Study Guide 2013-02-27

Chemical Change Study Guide crossword puzzle
Across
  1. Change of state from a liquid to a gas is an example of this kind of change.
  2. There are this many carbon atoms on each side of the following chemical equation: 2C4H10 + 13O2 ------> 8CO2 + 10H2O.
  3. The _________ of matter states that atoms can neither be created nor destroyed.
  4. In our hot water/cold water bath solutions, calcium carbonate reacted with this to form bubbles.
  5. Reactions at higher temperature have more of this.
  6. If you place a cover over a burning candle, the flame will go out because you have taken away one of the __________.
Down
  1. When our lava lamps stop bubbling, we can add more of this to make it go again.
  2. Increasing temperature increases the ________ of the reaction.
  3. The two reactants in our candle burning experiment were methane and __________.
  4. True or false: the reaction in the cold water bath will produce less product than the reaction in the hot water bath.
  5. In a chemical reaction, bonds in the reactants are broken and the atoms rearrange to form new _________.
  6. We represent chemical reactions with __________ equations.
  7. There is an equal number of atoms on each side of the equation to achieve this.
  8. Some chemical reaction will occur at low temperatures, they will just do so at a ________ rate.
  9. In our lava lamp experiment, alka seltzer reacted with this to form bubbles.

15 Clues: Reactions at higher temperature have more of this. • We represent chemical reactions with __________ equations. • Increasing temperature increases the ________ of the reaction. • Change of state from a liquid to a gas is an example of this kind of change. • In our lava lamp experiment, alka seltzer reacted with this to form bubbles. • ...

Luke´s Crossword 2024-05-15

Luke´s Crossword crossword puzzle
Across
  1. A process that changes substances into new substances.
  2. An element or compound (related words: chemist
  3. The amount of matter in an object.
  4. Material that has mass and takes up some amount of space.
  5. A pure substance that is formed when two or more different elements combine.
  6. A strong feeling of friendship
  7. A combination of substances that can be physically separated from one another.
  8. The smallest unit of an element that has the properties of that element.
  9. The substances that are formed during a chemical reaction.
  10. The transfer of thermal energy.
  11. The ability to do work.
Down
  1. The amount of space that an object occupies, measured in liters or centimeters cubed.
  2. A pure substance that cannot be broken down into simpler substances by chemical reactions.
  3. The ability of molecules of the same substance to stick together.
  4. The substances present before a chemical reaction occurs.
  5. Chemical reaction that gives off heat energy.
  6. Two or more atoms joined together.
  7. A measure of the average Kinetic energy of the atoms in a system, used to express thermal energy in the degrees.

18 Clues: The ability to do work. • A strong feeling of friendship • The transfer of thermal energy. • The amount of matter in an object. • Two or more atoms joined together. • Chemical reaction that gives off heat energy. • An element or compound (related words: chemist • A process that changes substances into new substances. • ...

Crossword 4 by Remi 2021-02-17

Crossword 4 by Remi crossword puzzle
Across
  1. The law of ______________ of mass states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed. Therefore, the quantity of mass is conserved over time.
  2. It is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
  3. is a low density metal that is a chemical element with the symbol Al and atomic number 13.
  4. Atomic ________ or atomic spacing refers to the distance between the nuclei of atoms in a material.
  5. Chemical ________________is the process or effect of simplifying a single chemical entity (normal molecule, reaction intermediate, etc.) into two or more fragments.
  6. A chemical compound with one atom of carbon and four atoms of hydrogen, that is the main constituent of natural gas.
  7. The composition or combination of parts or elements so as to form a whole, or the production of a substance by the union of chemical elements, groups, or simpler compounds.
  8. is the lightest and most abundant chemical element in the known universe with the symbol H and atomic number 1.
Down
  1. During a chemical reaction reactants are transformed into __________ after passing through a high energy transition state.
  2. The smallest unit of ordinary matter that forms a chemical element.
  3. The ________________scale is the length scale on which objects or phenomena are large enough to be visible with the naked eye, without magnifying optical instruments. It is the opposite of microscopic.
  4. The _____________ mass is the mass of an atom.
  5. The calculation of reactants and products in chemical reactions in chemistry.
  6. is a highly reactive chemical element with the symbol P and atomic number 15.
  7. The loss of electrons or an increase in the oxidation state of an atom, an ion, or of certain atoms in a molecule.
  8. Substances consumed in the course of a chemical reaction.
  9. When each side of the chemical equation represents the same quantity of any particular element and same charge is present on both sides, then it is a __________ equation. reaction A chemical______________ is a process that leads to the chemical transformation of one set of chemical substances to another.
  10. The ____________ constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in said sample.
  11. The unit of measurement for amount of substance in the International System of Units.
  12. A ____________ system is a physical system that does not allow transfer of matter in or out of the system.

20 Clues: The _____________ mass is the mass of an atom. • Substances consumed in the course of a chemical reaction. • The smallest unit of ordinary matter that forms a chemical element. • The calculation of reactants and products in chemical reactions in chemistry. • is a highly reactive chemical element with the symbol P and atomic number 15. • ...

Unit 1 - Biomolecules 2022-12-06

Unit 1 - Biomolecules crossword puzzle
Across
  1. the forces that hold atoms together within a molecule
  2. The process of creating large molecules from smaller molecules, utilizing energy
  3. attraction between molecules of different substances
  4. pockets in the folds on enzyme surfaces where the substrate binds and a chemical reaction occurs
  5. (fats); Carbon, Hydrogen, and Oxygen
  6. Carbon, Hydrogen, Oxygen, and Nitrogen
  7. a substance on which an enzyme acts during a chemical reaction to help lower activation energy
  8. During non-competitive inhibition, molecules do not sit in the active site but will attach to an _______.
  9. Molecules do not sit in the active site but will attach to an allosteric site and changes the shape of the enzyme therefore changing the shape of the active site.
  10. A water molecule is ____ if there is an uneven distribution of electrons between the hydrogen atoms and oxygen atoms. The negative pole is near the oxygen atom and the positive pole is near the hydrogen atoms
  11. a substance formed by the chemical combination of two or more elements in definite proportions
  12. tendency of water to rise in a thin tube
  13. molecules forming ionic or a hydrogen bond with water molecules. “Water loving”
  14. Proteins that act as biological catalysts and provide a site where the reactants can be brought together to react. Such a site reduces the energy needed for the reaction.
  15. Chemical bond formed when one or more electrons are transferred from one atom to another
  16. The process of splitting a compound into fragments with the addition of water; a kind of reaction that is used to break down polymers into simpler units, e.g. starch into glucose.
  17. Monomer to the polymer nucleic acids, have three parts, a 5-carbon sugar, a phosphate group, and a nitrogenous base.
  18. chemical reactions that release energy (often occur on their own, or spontaneously)
  19. Macromolecules that store and transmit hereditary or genetic information,(DNA/RNA); Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorous
  20. the basic unit of matter
  21. mixture of water and nondissolved material
  22. the chemical processes that occur within a living organism in order to maintain life
  23. attraction between a hydrogen atom and another atom
Down
  1. The energy needed to get a reaction started
  2. Molecules sit in the active site of the enzyme and prevent the entry of the substrate.
  3. dissolving substance in a solution. Ex: water
  4. a substance that speeds up the rate of the reaction by lowering the activation energy
  5. The process of breaking large molecules down into smaller molecules, releasing energy
  6. a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
  7. Organic compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
  8. Chemical bond formed when the electrons are shared between atoms
  9. Atoms of the same element that differ in the number of neutrons they contain
  10. large units made up of a chain of monomers
  11. chemical reactions that absorb energy (will NOT occur without an input of energy)
  12. (sugars); Carbon, Hydrogen, and Oxygen
  13. the forces that exist between molecules
  14. small units that compose polymers
  15. nonpolar molecules that repel water molecules. “Water fearing”
  16. attraction of molecules of the same substance
  17. A chemical reaction that builds up molecules by losing water molecules
  18. substance that is dissolved in solution. Ex: sugar, salt
  19. a pure substance that consists of one type of atom
  20. type of mixture in which all components are evenly distributed
  21. Adenosine triphosphate, abbreviated as ___, is the source of energy for use and storage at the cellular level.

44 Clues: the basic unit of matter • small units that compose polymers • (fats); Carbon, Hydrogen, and Oxygen • Carbon, Hydrogen, Oxygen, and Nitrogen • (sugars); Carbon, Hydrogen, and Oxygen • the forces that exist between molecules • tendency of water to rise in a thin tube • large units made up of a chain of monomers • mixture of water and nondissolved material • ...

Combustion and Chemical Reactions 2025-03-05

Combustion and Chemical Reactions crossword puzzle
Across
  1. change the change of one or more substances into another substance(s)
  2. a gas needed for combustion to happen
  3. a process in which a substance reacts with oxygen and gives off heat
  4. substances at the beginning of reaction
  5. the energy required to start and sustain combustion
  6. the process of starting a combustion reaction
  7. two or more atoms that are connected by a chemical bond
  8. a collection of solid, liquid, and gas particles released when a material is burned.
  9. equation the number of atoms of each element is the same on both the reactant and product sides
  10. a product of combustion, made of two hydrogen atoms and one oxygen atom
Down
  1. instance of combustion in which fuel is ignited, giving off light, heat, and flame
  2. substances at the end of reaction
  3. reaction a process in which substances change into new substances
  4. a pure form of matter
  5. the ability to do work
  6. a rapid combustion that releases large amounts of energy
  7. the amount of matter or substance that makes up an object
  8. dioxide a gas produced during combustion
  9. of conservation of mass mass is never created or destroyed during a chemical reaction.
  10. equation a representation that shows how chemical reactions produce products
  11. a material used to produce heat or power by burning

21 Clues: a pure form of matter • the ability to do work • substances at the end of reaction • a gas needed for combustion to happen • substances at the beginning of reaction • dioxide a gas produced during combustion • the process of starting a combustion reaction • the energy required to start and sustain combustion • a material used to produce heat or power by burning • ...

Vocabulary Final Review Part IV 2016-06-01

Vocabulary Final Review Part IV crossword puzzle
Across
  1. Speeds up a chemical reaction
  2. Amount of time it takes for half the amount of atoms to decay in an atom (2 Words)
  3. The strongest type of nuclear radiation (γ)(2 Words)
  4. The splitting of an atomic nucleus into two smaller nuclei (2 Words)
  5. Reaction where an acid combines with a base and forms water and salt
  6. Can pass through 3 mm of Al or several cm of wood (β) (2 Words)
  7. Energy required for a reaction to begin (2 Words)
  8. Shows the reactants and the products of a chemical reaction (2 Words)
  9. A + BC --> AC + B (2 Words)
  10. Substance whose water solution can conduct electricity
  11. Controls rate of nuclear reactions by absorbing neutrons (2 Words)
  12. Atom that has the same number of protons, but different neutron amount
  13. Slows down the neutrons inside of a nuclear reactor
Down
  1. AB --> A + B
  2. Weakest type of nuclear radiation, consists of a helium nucleus (α) (2 Words)
  3. Transfers heat from reaction chamber inside of a nuclear reactor (2 Words)
  4. AB + CD --> AD + CB (2 Words)
  5. One of the products of a neutralization reaction (The other is water)
  6. Contains the fuel, site of a nuclear reaction in a nuclear reactor (2 Words)
  7. Joining of two atomic nuclei of smaller mass to form a single nucleus (2 Words)
  8. Fuel used to power nuclear power plants (Element-Mass)
  9. Uncontrolled nuclear reaction (3 Words)
  10. Produces electric power in a nuclear reactor (2 Words)
  11. A catalyst in living things
  12. Turns pink in the presence of phenolphthalein, ends in OH
  13. Process where substances undergo chemical changes (Ex. S, D, SR, DR) (2 Words)
  14. Changes voltage of electricity produced in a nuclear reactor
  15. A + B --> AB
  16. Can be measured on a scale from 0-14
  17. Turns litmus paper red, always begins with “H”

30 Clues: A + B --> AB • AB --> A + B • A catalyst in living things • A + BC --> AC + B (2 Words) • Speeds up a chemical reaction • AB + CD --> AD + CB (2 Words) • Can be measured on a scale from 0-14 • Uncontrolled nuclear reaction (3 Words) • Turns litmus paper red, always begins with “H” • Energy required for a reaction to begin (2 Words) • ...

Biochemistry of Life 2026-01-21

Biochemistry of Life crossword puzzle
Across
  1. Example of Anabolic reaction
  2. Positively charged subatomic particle
  3. Chemical reaction that requires energy
  4. Example of Catabolic reaction
  5. Type of chemical bond where electrons are transferred
Down
  1. Functions as the nuclear glue, stabilizes nucleus
  2. Chemical reaction where bonds are broken apart
  3. Type of covalent bond where electrons unequally shared
  4. Subatomic particle that determines behavior
  5. Type of covalent bond that produces uncharged molecule

10 Clues: Example of Anabolic reaction • Example of Catabolic reaction • Positively charged subatomic particle • Chemical reaction that requires energy • Subatomic particle that determines behavior • Chemical reaction where bonds are broken apart • Functions as the nuclear glue, stabilizes nucleus • Type of chemical bond where electrons are transferred • ...

chemistry puzzle 2024-05-17

chemistry puzzle crossword puzzle
Across
  1. an atom, molecule or ion with least unpaired electron
  2. a metal made by mixing two different metals
  3. an ion with a negative charge
  4. no of valence electron that participate in chemical reaction
  5. process in which insoluble substance is left
  6. a noble gas
  7. an ion with a positive charge
Down
  1. no of atom present in molecule or atom
  2. a substance that cannot broken further
  3. a substance that react during chemical reaction
  4. substance made up of one kind of atom
  5. a substance that we get after a chemical reaction
  6. repetition of a property in periodic table
  7. basic building block o chemistry

14 Clues: a noble gas • an ion with a negative charge • an ion with a positive charge • basic building block o chemistry • substance made up of one kind of atom • no of atom present in molecule or atom • a substance that cannot broken further • repetition of a property in periodic table • a metal made by mixing two different metals • process in which insoluble substance is left • ...

Chem - Reduction-Oxidation 2021-01-15

Chem - Reduction-Oxidation crossword puzzle
Across
  1. another name for a galvanic cell
  2. the charge of hydrogen when not combined with a metal
  3. the electrode where reduction takes place in a galvanic cell
  4. The part of the reaction involving oxidation or reduction alone
  5. The branch of chemistry that deals with electricity-related applications of oxidation-reduction reactions is called _____
  6. substance that has the potential to cause another substance to be oxidized
  7. the sum of the charges in all compounds is ____
  8. device used to connect the two sides of an electrochemical cell
  9. Any chemical process in which elements undergo changes in oxidation number is an __________ reaction
  10. substance that has the potential to cause another substance to be reduced
  11. ion making up a solution of positive or negative ions
  12. A conductor used to establish electrical contact with a nonmetallic part of a circuit such an electrolyte solution
  13. An _____ alone in a reaction has a charge of zero
  14. only type of reaction that does not involve the transfer of electrons
  15. When a redox reaction's voltage is positive it is a ___________ reaction
  16. A single electrode immersed in a solution of electrolytes is a _____
Down
  1. An electrolytic process in which a metal ion is reduced and a solid metal is deposited on a surface is called ________________
  2. reaction in which an element's oxidation number goes up
  3. the charge of hydrogen when combined with a metal
  4. The oxidation of fluorine is always ____
  5. A process in which a substance acts as both an oxidizing agent and a reducing agent is called ____
  6. If a battery is required to produce a redox equation then it is called a _______ cell
  7. All substances reduction potential are measured against this element's electrode (614)
  8. reaction in which an element's oxidation number goes down
  9. A system of electrodes and electrolytes in which either chemical reactions produce electrical energy or an electric current produces chemical change
  10. the electrode where oxidation takes place in a galvanic/voltaic cell

26 Clues: another name for a galvanic cell • The oxidation of fluorine is always ____ • the sum of the charges in all compounds is ____ • the charge of hydrogen when combined with a metal • An _____ alone in a reaction has a charge of zero • the charge of hydrogen when not combined with a metal • ion making up a solution of positive or negative ions • ...

Development of the Atomic Theory - Part 1 2024-10-17

Development of the Atomic Theory - Part 1 crossword puzzle
Across
  1. Chemical process where a high concentration of salt is added to flesh so bacterium that produces decomposition become dormant.
  2. Substances in a chemical reaction that result as an outcome from a chemical reaction.
  3. Smallest particle of matter that is "indivisilbe" according to greek tradition.
  4. Last name of scientist how proposed the Law of Conservation of Mass as a basic foundation of Chemistry.
  5. Substances in a chemical reaction that are combined in order to produce the reaction.
  6. British scientist who wrote the first edition of the "Atomic Theory of Matter".
  7. Method used in chemistry to balance the mass in a chemical reaction through the use of equations.
  8. Order of the catholic church that was in charge of prosecuting people considered "heretic".
Down
  1. Name of roman emperor that turned the Roman Empire into "christian" as a way to control tax collecting.
  2. Greek philosopher who proposed the idea of the atom.
  3. Greek philosopher who believed in the continuity of matter and the influence of mithological gods in the nature of things.
  4. Scientists who wanted to overthrow the power of the church through science.
  5. Ancient civilization that invented gun powder.
  6. Ancient civilization that discovered fermentation of carbohidrates as a way to produce beer.
  7. Mame of the empire that brought the philosophical ideas of Aristotle from Greece, and integreted them within their culture.

15 Clues: Ancient civilization that invented gun powder. • Greek philosopher who proposed the idea of the atom. • Scientists who wanted to overthrow the power of the church through science. • Smallest particle of matter that is "indivisilbe" according to greek tradition. • British scientist who wrote the first edition of the "Atomic Theory of Matter". • ...

Chemical Reactions 2024-06-13

Chemical Reactions crossword puzzle
Across
  1. A neutral charged subatomic particle
  2. The substances formed as a result of a chemical reaction
  3. Where protons and neutrons can be found in the atom
  4. A change that only changes appearance, like changing state
  5. The number infront of a molecule, dictating how many molecules there are
  6. A type of reaction that releases energy, often in the form of heat
  7. The starting substances in a chemical reaction
  8. The number after the element, dictating how many atoms are bonded together
Down
  1. A type of reaction that absorbs energy, often in the form of heat
  2. The law of ____________ of mass
  3. A solid that forms when two liquids or solutions are mixed
  4. A positively charged subatomic particle
  5. A change where a new product or substance is formed
  6. A negatively charged subatomic particle

14 Clues: The law of ____________ of mass • A neutral charged subatomic particle • A positively charged subatomic particle • A negatively charged subatomic particle • The starting substances in a chemical reaction • Where protons and neutrons can be found in the atom • A change where a new product or substance is formed • The substances formed as a result of a chemical reaction • ...

Biology Chapter 2 Extra Credit 2022-03-23

Biology Chapter 2 Extra Credit crossword puzzle
Across
  1. a compound that can bind to an H+ ion when the H+ concentration increases and can release H+ ion when the H+ concentration decreases.
  2. the substances changed during a chemical reaction.
  3. two or more atoms held together by covalent bonds.
  4. measurement of acidity; related to free hydrogen ion concentration in solution.
  5. a large molecule or macromolecule made of many monomers bonded together.
  6. amino acids form covalent bonds.
  7. the substances made during a chemical reaction.
  8. forms when atoms share a pair of electrons.
  9. The attraction among the molecules of a substance.
  10. The attraction among molecules of different substances.
  11. reached when both the reactants and products are made at the same rate.
  12. forms through the electrical force between oppositely charged ions.
  13. the smallest basic unit of matter.
  14. an atom that has gained or lost one or more electrons.
  15. catalysts for chemical reactions in living things.
  16. molecules composed of carbon, hydrogen, oxygen, and they include sugars and starches.
  17. a compound that releases a proton – hydrogen ion (H+) – when it dissolves in water. An acid increases the concentration of H+ ions in a solution.
Down
  1. chemical reaction absorbs more energy than it releases.
  2. chains of carbon atoms bonded to hydrogen atoms.
  3. substance made of one type of atom that cannot be broken down by chemical means.
  4. a substance made of atoms of different elements bonded together in certain ratio.
  5. is an attraction between a slightly positive hydrogen and a slightly negative atom, often oxygen or nitrogen.
  6. chemical reaction releases more energy than it absorbs.
  7. nonpolar molecules that include fats, oils, and cholesterol.
  8. subunit in a molecule.
  9. a mixture of substances that is the same throughout. It is a homogeneous mixture.
  10. a polymer made of monomers called amino acids.
  11. composed of a sugar, a phosphate group, and a nitrogen containing molecule called a base.
  12. the amount of energy that will break a bond between two atoms.
  13. a substance that decreases the activation energy needed to start a chemical reaction.
  14. molecules that contain carbon, hydrogen, oxygen, nitrogen and sometimes sulfur.
  15. compounds that remove H+ ions from a solution. When a base dissolves in water, the solution has a low H+ concentration.

32 Clues: subunit in a molecule. • amino acids form covalent bonds. • the smallest basic unit of matter. • forms when atoms share a pair of electrons. • a polymer made of monomers called amino acids. • the substances made during a chemical reaction. • chains of carbon atoms bonded to hydrogen atoms. • the substances changed during a chemical reaction. • ...

Chapter 13 Crossword Jacob Riggs 2017-10-11

Chapter 13 Crossword Jacob Riggs crossword puzzle
Across
  1. The minimum energy required in order for a chemical reaction to proceed.
  2. The deterioration of a metal, typically caused by atmospheric oxygen.
  3. The process by which a reactant gains one or more electrons.
  4. An ionic compound commonly formed from the reaction between an acid and a base.
  5. The reacting substances in a chemical reaction.
  6. A substance that donates hydrogen ions.
Down
  1. Description of a chemical reaction in which there is a net release of energy.
  2. A rapid exothermic oxidation-reduction reaction between a material and a molecular oxygen.
  3. The process by which a reactant loses one or more electrons.
  4. The new materials formed in a chemical reaction.

10 Clues: A substance that donates hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • The process by which a reactant loses one or more electrons. • The process by which a reactant gains one or more electrons. • The deterioration of a metal, typically caused by atmospheric oxygen. • ...

Unit 1 - Biomolecules 2022-12-06

Unit 1 - Biomolecules crossword puzzle
Across
  1. the forces that hold atoms together within a molecule
  2. mixture of water and nondissolved material
  3. The energy needed to get a reaction started
  4. Carbon, Hydrogen, Oxygen, and Nitrogen
  5. a substance that speeds up the rate of the reaction by lowering the activation energy
  6. attraction between molecules of different substances
  7. Adenosine triphosphate, abbreviated as ___, is the source of energy for use and storage at the cellular level.
  8. attraction of molecules of the same substance
  9. Macromolecules that store and transmit hereditary or genetic information,(DNA/RNA); Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorous
  10. The process of breaking large molecules down into smaller molecules, releasing energy
  11. large units made up of a chain of monomers
  12. Monomer to the polymer nucleic acids, have three parts, a 5-carbon sugar, a phosphate group, and a nitrogenous base.
  13. A water molecule is ____ if there is an uneven distribution of electrons between the hydrogen atoms and oxygen atoms. The negative pole is near the oxygen atom and the positive pole is near the hydrogen atoms
  14. dissolving substance in a solution. Ex: water
  15. The process of splitting a compound into fragments with the addition of water; a kind of reaction that is used to break down polymers into simpler units, e.g. starch into glucose.
  16. small units that compose polymers
  17. Chemical bond formed when one or more electrons are transferred from one atom to another
  18. nonpolar molecules that repel water molecules. “Water fearing”
  19. Atoms of the same element that differ in the number of neutrons they contain
  20. Chemical bond formed when the electrons are shared between atoms
Down
  1. type of mixture in which all components are evenly distributed
  2. Organic compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
  3. During non-competitive inhibition, molecules do not sit in the active site but will attach to an _______.
  4. tendency of water to rise in a thin tube
  5. chemical reactions that absorb energy (will NOT occur without an input of energy)
  6. Molecules do not sit in the active site but will attach to an allosteric site and changes the shape of the enzyme therefore changing the shape of the active site.
  7. substance that is dissolved in solution. Ex: sugar, salt
  8. Proteins that act as biological catalysts and provide a site where the reactants can be brought together to react. Such a site reduces the energy needed for the reaction.
  9. a substance on which an enzyme acts during a chemical reaction to help lower activation energy
  10. pockets in the folds on enzyme surfaces where the substrate binds and a chemical reaction occurs
  11. a pure substance that consists of one type of atom
  12. the forces that exist between molecules
  13. the basic unit of matter
  14. chemical reactions that release energy (often occur on their own, or spontaneously)
  15. Molecules sit in the active site of the enzyme and prevent the entry of the substrate.
  16. the chemical processes that occur within a living organism in order to maintain life
  17. a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
  18. molecules forming ionic or a hydrogen bond with water molecules. “Water loving”
  19. a substance formed by the chemical combination of two or more elements in definite proportions
  20. (fats); Carbon, Hydrogen, and Oxygen
  21. The process of creating large molecules from smaller molecules, utilizing energy
  22. A chemical reaction that builds up molecules by losing water molecules
  23. attraction between a hydrogen atom and another atom
  24. (sugars); Carbon, Hydrogen, and Oxygen

44 Clues: the basic unit of matter • small units that compose polymers • (fats); Carbon, Hydrogen, and Oxygen • Carbon, Hydrogen, Oxygen, and Nitrogen • (sugars); Carbon, Hydrogen, and Oxygen • the forces that exist between molecules • tendency of water to rise in a thin tube • mixture of water and nondissolved material • large units made up of a chain of monomers • ...

All About Enzymes 2014-01-08

All About Enzymes crossword puzzle
Across
  1. Another word for reactant(s)
  2. Required for a reaction to occur
  3. Hormone produced by the thyroid glands to regulate metabolism
  4. The process of undergoing an irreversible change in shape
  5. A substance that binds to the active site and prevents a reaction
  6. Slightly altering an enzyme's shape so it binds to the substrate molecule
  7. Group of substances essential for cell function and growth
Down
  1. Produces thyroxin, increasing the rate of metabolism
  2. Part of enzyme where the chemical reaction occurs
  3. A substance that causes the enzyme's active site to become non receptive to the substrate
  4. Chemical reactions that occur in the body's cells
  5. A model where the substrate binds to the enzyme, resulting in a chemical reaction
  6. A small, vitamin-containing, organic molecule
  7. Protein molecules that speed up specific reactions

14 Clues: Another word for reactant(s) • Required for a reaction to occur • A small, vitamin-containing, organic molecule • Part of enzyme where the chemical reaction occurs • Chemical reactions that occur in the body's cells • Protein molecules that speed up specific reactions • Produces thyroxin, increasing the rate of metabolism • ...

CHEMICAL REACTIONS 2022-05-17

CHEMICAL REACTIONS crossword puzzle
Across
  1. A compound that includes oxygen.
  2. A new chemical formed in a chemical reaction. Eg:Sodium + chloide = Table salt.
  3. the number before a chemical formula that shows how many atoms that are involved in a chemical reaction.
  4. It is a substance formed when iron or steel reacts with oxygen and water.
  5. Makes a reaction occur faster.
Down
  1. When a chemical reaction needs heat energy so that the reaction can occur.
  2. A _______ change is when no new substances are formed during a chemical reaction but there could be a change of shape, size or state of matter (form).
  3. Loss of electrons. For example when you leave an apple or bananna, it turns brown. This is because it reacts with the air/oxygen.
  4. A procces were two ore more substances form a new irriversable substance.
  5. Chemicals that join together to form a new substance.

10 Clues: Makes a reaction occur faster. • A compound that includes oxygen. • Chemicals that join together to form a new substance. • A procces were two ore more substances form a new irriversable substance. • It is a substance formed when iron or steel reacts with oxygen and water. • When a chemical reaction needs heat energy so that the reaction can occur. • ...

Chemistry 2023-01-04

Chemistry crossword puzzle
Across
  1. chemical reaction that absorbs energy from the surroundings
  2. objects or substances that float in water or other fluids
  3. tool used to measure mass of matter
Down
  1. standard international unit of measure for temperature
  2. substance that is being changed in a chemical reaction
  3. how much space matter takes up
  4. new substance formed by a chemical reaction
  5. chemical reaction that gives off energy to surroundings
  6. how much matter a substance contains
  7. substance with a density of 1

10 Clues: substance with a density of 1 • how much space matter takes up • tool used to measure mass of matter • how much matter a substance contains • new substance formed by a chemical reaction • standard international unit of measure for temperature • substance that is being changed in a chemical reaction • chemical reaction that gives off energy to surroundings • ...

Tyler Ackerman Chapter 13 2018-03-07

Tyler Ackerman Chapter 13 crossword puzzle
Across
  1. A chemical equation must be
  2. A + B ---> AB
  3. A reaction where there is a net absorption of energy
  4. Most reactions go faster at _____ temperatures
  5. A reaction where there is a net release of energy
Down
  1. Change the rate of chemical reactions
  2. No atoms are gained or lost during any reaction
  3. A ____ is a chemical that accepts a hydrogen ion
  4. An ____ is a chemical that donates a hydrogen ion
  5. When reaction and it's reverse act at the same rate

10 Clues: A + B ---> AB • A chemical equation must be • Change the rate of chemical reactions • Most reactions go faster at _____ temperatures • No atoms are gained or lost during any reaction • A ____ is a chemical that accepts a hydrogen ion • An ____ is a chemical that donates a hydrogen ion • A reaction where there is a net release of energy • ...

Chapter 2 Vocabulary 2021-09-04

Chapter 2 Vocabulary crossword puzzle
Across
  1. molecule composed of many monomers; makes up macromolecules
  2. building block of nucleic acids
  3. substance that speeds up the rate of a chemical reaction
  4. type of bond in which atoms share electrons evenly or unevenly
  5. the center of an atom which contains the protons and neutrons
  6. a compound that forms hydroxide (OH-) ions in a solution; a solution with a pH of more than 7
  7. an element or compound produced by the chemical reaction; on the right side of a chemical equation
  8. type of mixture in which all the components are evenly distributed (another name for a homogeneous mixture)
  9. atom that has a positive or a negative charge
  10. type of reaction that transforms one set of chemicals into another set of chemicals
  11. compound made of C, H, and O atoms; provide a major energy source for the body; a sugar
  12. a compound that forms hydrogen (H+) ions in a solution; has a pH of less than 7
  13. protein catalyst that speeds up the rate of specific biological reactions
  14. type of chemical bond in which one or more electrons are transferred from one atom to another
  15. substance formed by the chemical combination of two or more elements
  16. type of bond that is a weak attraction between a hydrogen atom and another atom
  17. small chemical unit that makes up a polymer
  18. the macromolecule needed by the body for growth, repair, and muscle development
  19. the substance dissolving materials in a solution
Down
  1. material composed of two or more elements or compounds that are PHYSICALLY mixed together but not chemically combined
  2. reactant of an enzyme-catalyzed reaction
  3. negatively charged particle found in energy levels around the nucleus
  4. the "van der ____" forces that are the slight attraction between oppositely charged regions of nearby molecules
  5. type of acid that is the building block of proteins; made of an amino and a carboxyl group
  6. a compound that prevents sharp, sudden changes in pH by neutralizing acids or bases
  7. a mixture of water and non-dissolved material
  8. smallest unit of a compound that displays all properties of that compound
  9. compound made mostly of C and H; include fats, oils, and waxes
  10. energy input that is needed for a reaction to begin
  11. the scale with values from 0 to 14 that measures hydrogen ion concentration in a solution
  12. type of acid that includes DNA and RNA; also a macromolecule
  13. attraction between atoms of the same substance (example: water and water)
  14. the basic unit of matter
  15. a substance that is dissolved in a solution
  16. pure substance made of only one type of atom
  17. force of attraction between different kinds of molecules (example: water and a fingertip)
  18. a form of an element with a different number of neutrons
  19. an element or compound that enters a chemical reaction; on the left side of a chemical equation

38 Clues: the basic unit of matter • building block of nucleic acids • reactant of an enzyme-catalyzed reaction • a substance that is dissolved in a solution • small chemical unit that makes up a polymer • pure substance made of only one type of atom • a mixture of water and non-dissolved material • atom that has a positive or a negative charge • ...

Bio C1.1 1-7 Vocab 2024-10-30

Bio C1.1 1-7 Vocab crossword puzzle
Across
  1. Enzyme Substrate ____: When an enzyme and substrate only interact with their specific counterpart
  2. when an enzyme or substrate is attached to a solid material and is prevented from moving around
  3. Reaction in which polymers or complex molecules are broken down into their simpler form
  4. A molecule that speeds up the rate of a chemical reaction. An enzyme is one.
  5. Enzyme ____ reaction that is sped up by the presence of an enzyme
  6. Enzyme reactions that convert into energy via a network of interacting chemical reactions
  7. A chemical reaction involved in catabolic reactions, where a water molecule is added to a macromolecule to break it down into its individual parts. Inverse to a condensation reaction
  8. Factor that can denature an enzyme if it is too high or low
  9. A molecule that serves as a building block for more complex molecules
Down
  1. Amount of energy needed for a reaction to take place and for reactants to be transformed into enzymes. Minimum amount is lowered by catalysts.
  2. Change to a protein that causes it to no longer be able to function. Temperature and pH are agents of this change
  3. Model of enzyme catalyst where the enzyme alters the shape of its active site in order to accommodate the substrate
  4. theory Theory that for a reaction to occur, the reactants must collide in the correct orientation and with the right amount of energy
  5. Place on an enzyme where a reaction takes place
  6. Molecules/substances found in all living organisms that serve as a catalyst/speed up chemical reactions in the body. Necessary for life.
  7. Reaction in which monomers are synthesized into polymers/building up of simpler molecules into a more complex molecule
  8. Factor that can denature an enzyme if it is too basic or acidic
  9. Model of enzyme catalyst where the substrate is the perfect fit in the active site of the enzyme

18 Clues: Place on an enzyme where a reaction takes place • Factor that can denature an enzyme if it is too high or low • Factor that can denature an enzyme if it is too basic or acidic • Enzyme ____ reaction that is sped up by the presence of an enzyme • A molecule that serves as a building block for more complex molecules • ...

AZeotropy 2017 2017-01-10

AZeotropy 2017 crossword puzzle
Across
  1. Substance which reduces the activity of a catalyst (6)
  2. Reaction that requires no initiation (11)
  3. Measure of useful work (5,6)
  4. Title sponsor of AZeotropy 2017 (5,6)
  5. Chemical reaction in which a more reactive element replaces a less reactive element from its compound (12)
  6. Net heat content of a system (8)
  7. Father of Chemical Engineering (6,5)
  8. 'Effective' or 'adjusted' pressure (8)
Down
  1. Mixture of liquids which cannot be altered by simple distillation (9)
  2. The action of separating a mixture of two liquids with different boiling points (12)
  3. Conservation equation written on an infinitesimal control volume (5,7)
  4. Unsteady fluid motion (10)
  5. Emission of energy as electromagnetic waves (9)
  6. Measure of randomness or disorder (7)
  7. Reaction that requires heat (11)
  8. The world's largest chemical producer (4)

16 Clues: Unsteady fluid motion (10) • Measure of useful work (5,6) • Reaction that requires heat (11) • Net heat content of a system (8) • Father of Chemical Engineering (6,5) • Measure of randomness or disorder (7) • Title sponsor of AZeotropy 2017 (5,6) • 'Effective' or 'adjusted' pressure (8) • Reaction that requires no initiation (11) • The world's largest chemical producer (4) • ...

Chemical Change Study Guide 2013-02-27

Chemical Change Study Guide crossword puzzle
Across
  1. In our lava lamp experiment, alka seltzer reacted with this to form bubbles.
  2. The two reactants in our candle burning experiment were methane and __________.
  3. In a chemical reaction, bonds in the reactants are broken and the atoms rearrange to form new _________.
  4. If you place a cover over a burning candle, the flame will go out because you have taken away one of the __________.
  5. When our lava lamps stop bubbling, we can add more of this to make it go again.
  6. Some chemical reaction will occur at low temperatures, they will just do so at a ________ rate.
  7. We represent chemical reactions with __________ equations.
  8. True or false: the reaction in the cold water bath will produce less product than the reaction in the hot water bath.
Down
  1. Reactions at higher temperature have more of this.
  2. The _________ of matter states that atoms can neither be created nor destroyed.
  3. In our hot water/cold water bath solutions, calcium carbonate reacted with this to form bubbles.
  4. There are this many carbon atoms on each side of the following chemical equation: 2C4H10 + 13O2 ------> 8CO2 + 10H2O.
  5. Increasing temperature increases the ________ of the reaction.
  6. There is an equal number of atoms on each side of the equation to achieve this.
  7. Change of state from a liquid to a gas is an example of this kind of change.

15 Clues: Reactions at higher temperature have more of this. • We represent chemical reactions with __________ equations. • Increasing temperature increases the ________ of the reaction. • In our lava lamp experiment, alka seltzer reacted with this to form bubbles. • Change of state from a liquid to a gas is an example of this kind of change. • ...

Reaction Types 2021-08-10

Reaction Types crossword puzzle
Across
  1. The breakdown of a single reactant into two or more products
  2. An ion that doesn't take part in a reaction
  3. The smallest particle of an element which can participate in a chemical reaction
  4. An atom or molecule with a net charge
  5. A substance formed by a chemical reaction
  6. A collision that results in a reaction
  7. Not able to be dissolved easily
  8. The theory that particles must successfully collide in order to react
  9. The combination of two or more reactants to form a single
Down
  1. The loss of electrons
  2. A substance made up of two or more types of atom chemically bonded together
  3. The smallest unit of a substance which can exist independently and still exhibit the properties of that substance
  4. A mixture in which a substance is dissolved in water
  5. The speed at which reactants are converted into products
  6. A solid that settles out of a solution
  7. When a more the ions of a less active metal are displaced from solution by a more active metal
  8. The formation of an insoluble salt from the reaction between the solutions of two soluble salts
  9. A substance that changed (usually increases) the rate of reaction without being consumed itself
  10. A reaction that involves the transfer of electrons

19 Clues: The loss of electrons • Not able to be dissolved easily • An atom or molecule with a net charge • A solid that settles out of a solution • A collision that results in a reaction • A substance formed by a chemical reaction • An ion that doesn't take part in a reaction • A reaction that involves the transfer of electrons • ...

Vocab. 2016-12-09

Vocab. crossword puzzle
Across
  1. Absorbs energy in the form of heat
  2. Using symbols to represent chemical compounds
  3. A subatomic particle that has a negative charge
  4. A change that does not effect the identity of the substances
  5. Atoms or ions are bound together
  6. 1 compound forms 2 or more elements
  7. Characteristic or description of an object
  8. A subatomic particle that has a positive charge
  9. A substance that cannot be broken down any more than it is.
  10. A particle that is smaller than an atom
  11. Can be observed without changing the substance
  12. Parts of mixture look the same
  13. location of protons and neutrons
  14. A variable that can be on its own
  15. A subatomic particle that has a neutral charge
  16. elements share electrons, between 2 non-metals
  17. The patterns of an electrons in an atom
  18. The number in front of the variable
  19. A change that creates a new substance
  20. 1 element and 1 compound form a new element and a new compound
  21. Ion with more than 1 atom has a charge, acts like a single unit
  22. Releases energy in the form of heat
  23. All atoms want 8 valance electrons like the noble gases
  24. Parts of mixture look different
  25. Hydrogencarbon and oxygen form water and carbon dioxide
  26. negative ion, gained electrons, usually non-metals
  27. Makes a reaction go faster but id not used up
  28. A variable that needs something else with it
  29. A scientific test or piece that actually measures what it sets out to do
  30. An element, feature, or factor that can change
  31. An educated guess based on earlier observations
  32. Atom has gained/lost e ,not neutral
  33. Right side of the P.T.
  34. A variable that stays the same the entire time
  35. 2 or more atoms chemically combined
Down
  1. A chemical change that produces a new substance
  2. 2 compounds form 2 new compounds
  3. How compact an object is
  4. allow them to be placed in groups and periods
  5. Describes how a substance changes into a new substance
  6. The substance after the change has occurred, written on right side of arrow
  7. Whole number on the P.T.
  8. Rounded atomic mass
  9. Elements with the same number of electrons are put in the same row
  10. 2 elements form a compound
  11. Same ratio of atoms no matter the size of substance
  12. The substance before the change, written on left side of thee arrow
  13. Has an equal number of atoms on both sides of the arrow
  14. Something that is unchanged through out an experiment
  15. The energy stored in the bonds of a compound
  16. 2 or more atoms/compounds physically combined
  17. Decimal number on P.T.
  18. two or more atoms of the same element, they have the same #of protons but different umber of neutrons
  19. on the left side of the P.T.
  20. Elements transfer electrons, between a metal and a non-metal, or cation and anion
  21. the elements have a repeating pattern
  22. Simplest form of that species, smallest form of an element that consists of a nucleus, protons, neutrons, electrons, orbitals
  23. Elements with similar properties are arranged in the same column
  24. Positive ion, lost electrons, usually metals
  25. An effect or attempt
  26. On the stair-step

61 Clues: On the stair-step • Rounded atomic mass • An effect or attempt • Decimal number on P.T. • Right side of the P.T. • How compact an object is • Whole number on the P.T. • 2 elements form a compound • on the left side of the P.T. • Parts of mixture look the same • Parts of mixture look different • 2 compounds form 2 new compounds • Atoms or ions are bound together • ...

Unit 1 - Biomolecules 2022-12-06

Unit 1 - Biomolecules crossword puzzle
Across
  1. the forces that hold atoms together within a molecule
  2. The process of creating large molecules from smaller molecules, utilizing energy
  3. attraction between molecules of different substances
  4. pockets in the folds on enzyme surfaces where the substrate binds and a chemical reaction occurs
  5. (fats); Carbon, Hydrogen, and Oxygen
  6. Carbon, Hydrogen, Oxygen, and Nitrogen
  7. a substance on which an enzyme acts during a chemical reaction to help lower activation energy
  8. During non-competitive inhibition, molecules do not sit in the active site but will attach to an _______.
  9. Molecules do not sit in the active site but will attach to an allosteric site and changes the shape of the enzyme therefore changing the shape of the active site.
  10. A water molecule is ____ if there is an uneven distribution of electrons between the hydrogen atoms and oxygen atoms. The negative pole is near the oxygen atom and the positive pole is near the hydrogen atoms
  11. a substance formed by the chemical combination of two or more elements in definite proportions
  12. tendency of water to rise in a thin tube
  13. molecules forming ionic or a hydrogen bond with water molecules. “Water loving”
  14. Proteins that act as biological catalysts and provide a site where the reactants can be brought together to react. Such a site reduces the energy needed for the reaction.
  15. Chemical bond formed when one or more electrons are transferred from one atom to another
  16. The process of splitting a compound into fragments with the addition of water; a kind of reaction that is used to break down polymers into simpler units, e.g. starch into glucose.
  17. Monomer to the polymer nucleic acids, have three parts, a 5-carbon sugar, a phosphate group, and a nitrogenous base.
  18. chemical reactions that release energy (often occur on their own, or spontaneously)
  19. Macromolecules that store and transmit hereditary or genetic information,(DNA/RNA); Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorous
  20. the basic unit of matter
  21. mixture of water and nondissolved material
  22. the chemical processes that occur within a living organism in order to maintain life
  23. attraction between a hydrogen atom and another atom
Down
  1. The energy needed to get a reaction started
  2. Molecules sit in the active site of the enzyme and prevent the entry of the substrate.
  3. dissolving substance in a solution. Ex: water
  4. a substance that speeds up the rate of the reaction by lowering the activation energy
  5. The process of breaking large molecules down into smaller molecules, releasing energy
  6. a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
  7. Organic compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
  8. Chemical bond formed when the electrons are shared between atoms
  9. Atoms of the same element that differ in the number of neutrons they contain
  10. large units made up of a chain of monomers
  11. chemical reactions that absorb energy (will NOT occur without an input of energy)
  12. (sugars); Carbon, Hydrogen, and Oxygen
  13. the forces that exist between molecules
  14. small units that compose polymers
  15. nonpolar molecules that repel water molecules. “Water fearing”
  16. attraction of molecules of the same substance
  17. A chemical reaction that builds up molecules by losing water molecules
  18. substance that is dissolved in solution. Ex: sugar, salt
  19. a pure substance that consists of one type of atom
  20. type of mixture in which all components are evenly distributed
  21. Adenosine triphosphate, abbreviated as ___, is the source of energy for use and storage at the cellular level.

44 Clues: the basic unit of matter • small units that compose polymers • (fats); Carbon, Hydrogen, and Oxygen • Carbon, Hydrogen, Oxygen, and Nitrogen • (sugars); Carbon, Hydrogen, and Oxygen • the forces that exist between molecules • tendency of water to rise in a thin tube • large units made up of a chain of monomers • mixture of water and nondissolved material • ...

Metals and Acids Keywords 2025-02-11

Metals and Acids Keywords crossword puzzle
Across
  1. The tendency of a substance to undergo a chemical reaction.
  2. A starting substance in a chemical reaction.
  3. Reaction where a more reactive metal takes the place of a less reactive metal in a compound.
  4. Elements on the left of the stepped line of the Periodic Table.
  5. Elements on the right of the stepped line of the Periodic Table.
  6. A substance that stores energy in a chemical store which it can release as heat.
Down
  1. A change in which it is possible to get back to the original substances.
  2. A chemical reaction in which a substance reacts quickly with oxygen and gives out light and heat. Also called burning.
  3. A change that is reversible, in which new substances are not made.
  4. A substance that is made in a chemical reaction.
  5. A compound in which the hydrogen atoms of an acid are replaced by atoms of a metal element. (eg Sodium Chloride)
  6. A substance made up of a metal or non-metal element joined to oxygen.

12 Clues: A starting substance in a chemical reaction. • A substance that is made in a chemical reaction. • The tendency of a substance to undergo a chemical reaction. • Elements on the left of the stepped line of the Periodic Table. • Elements on the right of the stepped line of the Periodic Table. • A change that is reversible, in which new substances are not made. • ...

Crude Oil, Chemical reactions 2025-10-09

Crude Oil, Chemical reactions crossword puzzle
Across
  1. Unwanted substances in crude oil, such as dirt or extra elements, that need to be removed.
  2. A number that measures how light or heavy crude oil is compared to water (API .......).
  3. Breaking down a substance into smaller parts, like when oil is heated in a reaction.
  4. A yellow element in crude oil that can make it smell bad and cause pollution.
  5. How thick or sticky a liquid like oil is, which changes with temperature.
  6. A chemical reaction where oil burns and produces heat and gases.
  7. A starting material in a chemical reaction.
Down
  1. How much mass is in a certain volume, like comparing oil to water in a test.
  2. A solid that forms and falls out of a liquid during a chemical reaction.
  3. The process of cleaning and changing crude oil into useful products like gasoline.
  4. A way to write a chemical reaction with symbols.
  5. A chemical compound made of hydrogen and carbon, the main part of crude oil.

12 Clues: A starting material in a chemical reaction. • A way to write a chemical reaction with symbols. • A chemical reaction where oil burns and produces heat and gases. • A solid that forms and falls out of a liquid during a chemical reaction. • How thick or sticky a liquid like oil is, which changes with temperature. • ...

Chemistry Crossword - Jhuan 9B 2019-11-06

Chemistry Crossword - Jhuan 9B crossword puzzle
Across
  1. the vertical columns in the periodic table of elements
  2. a new substance produced in a chemical reaction
  3. extremely reactive non-metals
  4. often a liquid or gas at room temperature (can be solids sometimes, aren't malleable, do not conduct electricity, and usually has no lustre
  5. a particle with a negative charge
  6. _______ ____ model, created by John Dalton
  7. is a chemical reaction that takes place in the cells in your body
  8. reacts to air and water: less reactive than alkaline metals
  9. is a fast chemical reaction that occurs whens oxygen reacts with a substance to form a new substance; gives off energy
  10. releases heat (example: fire)
  11. "The Father of Modern Chemistry"
  12. a particle with a neutral charge
Down
  1. the horizontal rows in the periodic table of elements
  2. a substance that reacts with another substance in a chemical reaction to create a new substance with different products or properties
  3. takes place when two or more substances combine to form new ones
  4. a very reactive metal, especially in air and water
  5. have mixed properties of both metals and non-metals
  6. absorbs heat (example: ice pack)
  7. compounds that consist of ions (a group of atoms that have become electrically charged)
  8. a very stable and unreactive gas
  9. the sum two non-metals combining, forming a pure substance called a _________.
  10. a particle with a positive charge
  11. Solids at room temperature, often malleable, often has lustre, and conducts electricity
  12. one of the three factors of the fire triangle

24 Clues: extremely reactive non-metals • releases heat (example: fire) • absorbs heat (example: ice pack) • a very stable and unreactive gas • "The Father of Modern Chemistry" • a particle with a neutral charge • a particle with a negative charge • a particle with a positive charge • _______ ____ model, created by John Dalton • one of the three factors of the fire triangle • ...

Kinetics Crossword Puzzle 2024-05-22

Kinetics Crossword Puzzle crossword puzzle
Across
  1. a detailed picture, or model, of how the reaction occurs
  2. k
  3. a molecular entity formed by loose association involving two or more component
  4. chemical reactions occur when reactant molecules have _________ with the proper orientation and sufficient energy.
  5. speed at which a chemical reaction takes place
Down
  1. branch of chemistry studying the rate of reactions
  2. a type of chemical reaction that can be used to measure the rate of the reaction
  3. a substance or mixture for use in a chemical analysis
  4. with starch, creates the blue color in the clock reaction
  5. the relationship between the concentrations of species and the rate of a reaction

10 Clues: k • speed at which a chemical reaction takes place • branch of chemistry studying the rate of reactions • a substance or mixture for use in a chemical analysis • a detailed picture, or model, of how the reaction occurs • with starch, creates the blue color in the clock reaction • a molecular entity formed by loose association involving two or more component • ...

Mr. Philips Class Crossword 2026-03-06

Mr. Philips Class Crossword crossword puzzle
Across
  1. a chemical reaction that takes in heat
  2. a reversible or irreversible alteration to the form, state, or appearance of matter without changing its chemical composition or creating new substances.
  3. any fuel made from fossils like coal or gasoline
  4. any fuel made from a living plant
  5. An independent variable is the variable that is changed, manipulated, or controlled in a scientific experiment or mathematical formula to test its effects on a dependent variable.
  6. a substance, compound, or entity formed as a direct result of a chemical reaction, biological process, or physical transformation.
Down
  1. Density is a physical property defined as the amount of mass per unit volume of a substance
  2. a chemical reaction that gives off heat
  3. a symbolic representation of a chemical reaction, using formulas and symbols to show the conversion of reactants into products.
  4. a substance present at the start of a chemical reaction that is consumed, changed, or rearranged to form new substances called products.
  5. A reactant is a substance present at the start of a chemical reaction that is consumed,
  6. the factor being measured, tested, or observed in an experiment, representing the outcome or effect of the study.
  7. occurs when one or more substances transform into entirely new substances with different chemical properties

13 Clues: any fuel made from a living plant • a chemical reaction that takes in heat • a chemical reaction that gives off heat • any fuel made from fossils like coal or gasoline • A reactant is a substance present at the start of a chemical reaction that is consumed, • Density is a physical property defined as the amount of mass per unit volume of a substance • ...

Unit 1: Chemical Reactions 2023-10-17

Unit 1: Chemical Reactions crossword puzzle
Across
  1. A starting material in a reaction
  2. How tightly packed together the atoms are in a substance
  3. How much space an object takes up
  4. We describe matter by talking about its
  5. In a chemical reaction, mass is always ______________.
  6. Flammability is a _________________ property
Down
  1. Anything that has mass and volume
  2. Color Change, Temperature change, and Formation of gas are all _____________ of a chemical reaction
  3. How much matter is in an object
  4. an ice cube melting is a _____________ change.
  5. An ending material in a reaction

11 Clues: How much matter is in an object • An ending material in a reaction • Anything that has mass and volume • A starting material in a reaction • How much space an object takes up • We describe matter by talking about its • Flammability is a _________________ property • an ice cube melting is a _____________ change. • In a chemical reaction, mass is always ______________. • ...

chapter 2 crossword 1 2014-11-18

chapter 2 crossword 1 crossword puzzle
Across
  1. any reaction with an oxidation number
  2. opposite of acid
  3. how much of 1 substance is in 1 thing
  4. The strength and vitality required for sustained physical or mental activity
  5. A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
  6. A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge
  7. something that reacts
  8. ion water molecule with extra hydrogen
  9. Change in free energy is negative
  10. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  11. Makes up everything in the world
  12. Join or be joined by a chemical bond
Down
  1. being in solution
  2. The bonding between a non-metal and a metal, that occurs when charged atoms attract after one loses one or more of its electrons
  3. A half reaction in which a chemical species decreases is oxidation number usually resulting in gaining of electrons
  4. A subatomic particle of about the same mass as a proton but without an electric charge
  5. dissolves another thing
  6. The fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have
  7. determine base or acid
  8. Made up or consisting of several parts or elements
  9. in batteries
  10. The basic unit of a chemical element

22 Clues: in batteries • opposite of acid • being in solution • something that reacts • determine base or acid • dissolves another thing • Makes up everything in the world • Change in free energy is negative • The basic unit of a chemical element • Join or be joined by a chemical bond • any reaction with an oxidation number • how much of 1 substance is in 1 thing • ...

Chapter 13 Crossword 2016-10-11

Chapter 13 Crossword crossword puzzle
Across
  1. the process by which a reactant gains one or more electron
  2. the new materials formed in a chemical reaction
  3. energy is transferred to reactants from surroundings
  4. the minimum energy required in order for a chemical reaction to proceed
  5. a substance that accepts hydrogen ions
  6. solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
  7. a substance that donates hydrogen ions
  8. solution in which the hydroxide ion concentration is higher than the hydronium ion concentration
  9. the deterioration of a metal, typically caused by atmospheric oxygen
  10. the reacting substances in a chemical reaction
Down
  1. Ab+oxygen->oxides of A and B
  2. amount of energy required to pull two bonded atoms apart
  3. the process by which a reactant loses one or more electrons
  4. a reaction between an acid and a base
  5. energy transfers from reactants to surroundings

15 Clues: Ab+oxygen->oxides of A and B • a reaction between an acid and a base • a substance that accepts hydrogen ions • a substance that donates hydrogen ions • the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • energy transfers from reactants to surroundings • energy is transferred to reactants from surroundings • ...

Chapter 7 - Chemical Reaction 2021-12-16

Chapter 7 - Chemical Reaction crossword puzzle
Across
  1. the chemical formulas of the reactants and the products
  2. a constant term related to the properties of a product
  3. a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules
  4. a process in which one or more substances are changed into others.
  5. a reation that gives off heat
  6. a substance obtained from another substance through chemical change
  7. two different atoms or molecules interact to form a different molecule or compound
Down
  1. the mass of a sample of that compound divided by the amount of substance in that sample
  2. when parts of two ionic compounds are exchanged
  3. a reaction in which one element is substituted for another element in a compound
  4. processes in which chemical species break up into simpler parts
  5. Energy stored in the bonds of chemical compounds
  6. a substance that takes part in and undergoes change during a reaction.

13 Clues: a reation that gives off heat • when parts of two ionic compounds are exchanged • Energy stored in the bonds of chemical compounds • a constant term related to the properties of a product • the chemical formulas of the reactants and the products • processes in which chemical species break up into simpler parts • ...

Biology CH 1.1, 1.2, 2 2019-09-30

Biology CH 1.1, 1.2, 2 crossword puzzle
Across
  1. A biological molecule produced by living organisms, which catalyzes a specific biochemical reaction at body temperatures
  2. The breakdown of larger molecules to obtain energy
  3. Hydrogen fearing; molecules that do not dissolve in water
  4. The region of an enzyme where non-competitive inhibitor bind and turn off enzyme activity
  5. A group of living organisms who are similar to each other and are capable of exchanging genes through interbreeding
  6. All chemical reactions involved in maintaining the living state of the cells and organism
  7. A bond in which two atoms share a pair of valence electron
  8. The amount of energy required to heat up 1g by 1˚C
  9. What sugar ends in
Down
  1. The synthesis of all compounds needed by the cells
  2. The amount of energy required to heat up the whole substance by 1˚C
  3. Hydrogen loving; molecules that can dissolve in water
  4. The ability to maintain a constant inner environment in response to environmental changes
  5. A substance that increases the rate of a chemical reaction, without undergoing any permanent chemical change
  6. The total sum of all the living organisms that exist on Earth
  7. The energy required to start a reaction
  8. What enzymes end in
  9. A bond in which an atom transfers an electron to another atom
  10. A group of organisms who belong to a particular species, living and interbreeding at the same place
  11. The region of an enzyme where substrate molecules bind and undergo a chemical reaction

20 Clues: What sugar ends in • What enzymes end in • The energy required to start a reaction • The synthesis of all compounds needed by the cells • The breakdown of larger molecules to obtain energy • The amount of energy required to heat up 1g by 1˚C • Hydrogen loving; molecules that can dissolve in water • Hydrogen fearing; molecules that do not dissolve in water • ...

Oh! Oh! What Chem Words Do You Know? 2020-03-07

Oh! Oh! What Chem Words Do You Know? crossword puzzle
Across
  1. ___ RXN is a chemical reaction when 2 or more substances combine to form a new compound
  2. A liquid substance capable of dissolving other substances
  3. ____ RXN is a chemical reaction that breaks down compounds into simpler products
  4. A column on the periodic table where all elements have the same number of valance electrons and therefore similar chemical properties
  5. The measure of the average energy of motion of the products of a substance
  6. Bond Formed when one or more electrons are transferred from one atom to another
  7. Temperature, pressure and concentration
  8. Change A change in a substance that does not involve a change in the identity of the substance
  9. Bond A bond that involves that sharing of electrons between atoms in a molecule
  10. A homogeneous mixture of 2 or more substances
Down
  1. A subatomic positive charged particle with a mass of 1 amu, and is found in the nucleus
  2. The ability of an atom to attract electrons
  3. A substance formed by the chemical combination of 2 or more elements in definite proportions
  4. The reaction rates are equal, and the concentrations are constant
  5. The number of moles of solute per liter of solution
  6. A measure of disorder or randomness
  7. The amount of space that an object takes up
  8. The _____ energy is the energy added to the reactants to get the reaction started
  9. A substance that is dissolved in a solution
  10. The center of the atom

20 Clues: The center of the atom • A measure of disorder or randomness • Temperature, pressure and concentration • The ability of an atom to attract electrons • The amount of space that an object takes up • A substance that is dissolved in a solution • A homogeneous mixture of 2 or more substances • The number of moles of solute per liter of solution • ...

The Final Biology 2021-01-22

The Final Biology crossword puzzle
Across
  1. the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of the heat
  2. the basic unit of life
  3. groups of similar cells that perform a particular function
  4. the state of steady/balanced internal, physical, and chemical conditions maintained by living systems.
  5. energy needed to start a chemical reaction
  6. predator & prey populations regulate each other
  7. can cause the entire population to “crash”
  8. take reactants of an enzyme and catalyzed reaction
  9. speed up a reaction
  10. covers body surfaces, line body cavities, and hollow organs.
  11. a group of tissues working together
  12. connects, supports, and separates all other types of tissue
Down
  1. control body movements, send and receive signals
  2. fiber structure allows it to contract, making the organism move.
  3. the breakdown of glucose by enzymes, releasing energy and pyruvic acid
  4. the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide, and water
  5. trying to use a resource at the same time
  6. most populations can adjust to small changes but not large or long term
  7. a group of organs that work together to perform a specific function
  8. similar to predators-feed at expense of the host
  9. made up of many cells
  10. go into a reaction
  11. relating to, involving, or requiring an absence of free oxygen
  12. found in every cell in your body
  13. biological catalysts

25 Clues: go into a reaction • speed up a reaction • biological catalysts • made up of many cells • the basic unit of life • found in every cell in your body • a group of tissues working together • trying to use a resource at the same time • energy needed to start a chemical reaction • can cause the entire population to “crash” • predator & prey populations regulate each other • ...

photosynthesis 2024-01-05

photosynthesis crossword puzzle
Across
  1. energy used to form ATP from APD
  2. energy produced when solar energy is converted to chemical energy
  3. the fluid found within the chloroplast
  4. creates its own organic material for production of energy
  5. byproduct released during the light reaction segment of photosynthesis
  6. when carbon dioxide is added into organic molecules
  7. acronym for the energy produced when solar energy is converted to chemical energy
  8. chemical compound added to the Calvin Cycle section of photosynthesis
  9. chemical compound added to the light reaction section of photosynthesis
  10. byproduct released during the Calvin Cycle segment of photosynthesis
  11. the relationship between plants and organisms that breathe oxygen and have an unneeded byproduct of carbon dioxide during the process
  12. donates hydrogen and electrons to help power the Calvin Cycle
Down
  1. pigment that helps energy form the sun to be absorb in the organism for photosynthesis to occur
  2. a series of proteins embedded in the thylakoid membrane where electrons are deposited
  3. won the Nobel Prize for his work in discovering the Calvin Cycle section of photosynthesis
  4. stacks of thylakoids within the chloroplast
  5. also known as the dark reaction and takes place in the stroma of the chloroplast
  6. the sacs that contain pigments such as chlorophyll
  7. process by which autotrophic organisms use light energy to make sugar and oxygen gas from carbon dioxide and water
  8. process where water is split into hydrogen and oxygen during the light reaction
  9. organelle found in plants where photosynthesis occurs

21 Clues: energy used to form ATP from APD • the fluid found within the chloroplast • stacks of thylakoids within the chloroplast • the sacs that contain pigments such as chlorophyll • when carbon dioxide is added into organic molecules • organelle found in plants where photosynthesis occurs • creates its own organic material for production of energy • ...

Enzyme Crossword 2026-03-04

Enzyme Crossword crossword puzzle
Across
  1. Type of chemical reaction that absorbs energy from its surroundings
  2. Sum of all chemical reactions in a cell
  3. Type of reaction that includes bond formation to form larger molecules from smaller molecules
  4. Model whereby the shape of the active site is complementary and specific to specific substrates
  5. Type of chemical reaction that releases energy to its surroundings
  6. Released after enzyme activity
  7. Molecules that react together at the start of a reaction
Down
  1. Model whereby the shape of the active site of an enzyme changes to accommodate different substrates
  2. Molecules that inhibit activity of enzymes
  3. Amount of energy required for a reaction to start
  4. Type of reaction that includes bond breaking when converting larger molecules into smaller molecules
  5. Organic molecules that help enzymes function properly

12 Clues: Released after enzyme activity • Sum of all chemical reactions in a cell • Molecules that inhibit activity of enzymes • Amount of energy required for a reaction to start • Organic molecules that help enzymes function properly • Molecules that react together at the start of a reaction • Type of chemical reaction that releases energy to its surroundings • ...

Chemistry terms part 3 2025-05-22

Chemistry terms part 3 crossword puzzle
Across
  1. a starting substance in a chemical reaction
  2. that portion of chemistry dealing with numerical relationships in chemical reactions; the calculation of quantities of substances involved in chemical equations
  3. describes the closeness, or reproducibility, of a set of measurements taken under the same conditions
  4. matter that has a definite shape and volume
  5. the space occupied by a sample of matter
  6. a substance formed in a chemical reaction
Down
  1. the conversion of a solid to a gas or vapor without passing through the liquid state
  2. a thoroughly tested model that explains why experiments give certain results
  3. a substance in the gaseous state that is ordinarily a liquid or solid at room temperature
  4. a measure of the average kinetic energy of particles in matter
  5. a positively charged subatomic particle found in the nucleus of an atom
  6. a quantum of light, a discrete bundle of electromagnetic energy that behaves as a particle
  7. a horizontal row of elements in the periodic table
  8. a substance that increases the rate of reaction by lowering the activation-energy barrier; it speeds up a chemical reaction without being consumed in the process

14 Clues: the space occupied by a sample of matter • a substance formed in a chemical reaction • a starting substance in a chemical reaction • matter that has a definite shape and volume • a horizontal row of elements in the periodic table • a measure of the average kinetic energy of particles in matter • a positively charged subatomic particle found in the nucleus of an atom • ...

Reactions 2015-02-25

Reactions crossword puzzle
Across
  1. saponification is the ________ reaction of esterification
  2. a set of radical reaction
  3. example of hydrolysis
  4. propanal ----> propanoic acid
  5. "polar" - heterolytic (______) "polar" heterogenic (bonding)
  6. propanone ----> propanal
  7. causes a chemical reaction to happen more quickly
  8. hydroxyl is its functional group
  9. product of alkene after addition reaction
  10. substitution reaction: two compounds react to form two ______ compounds
  11. reverse of condensation reaction
  12. alcohol + ______ ------> aldehyde or ketone
Down
  1. commonly undergo substitution
  2. reduction transforms bouble bond into
  3. ability of an atom to attract
  4. functional group of phenol
  5. aldehyde or ketone after reduction
  6. alder reaction
  7. carboxylic acid + alcohol ----> ester + water
  8. attraction between positive and negative charges on molecule
  9. dilute solution of phenol
  10. carboxylic acid + alcohol ----> ester + ______
  11. N, F, Cl and Br
  12. bonds are formed by equal sharing of electron
  13. linalool ester
  14. reducing agent: lithium __________
  15. terminationis the _____ stage of radical reaction
  16. lewis acid
  17. Br
  18. oxidizing agent: KMn04 (_______)

30 Clues: Br • lewis acid • alder reaction • linalool ester • N, F, Cl and Br • example of hydrolysis • propanone ----> propanal • a set of radical reaction • dilute solution of phenol • functional group of phenol • commonly undergo substitution • ability of an atom to attract • propanal ----> propanoic acid • hydroxyl is its functional group • reverse of condensation reaction • ...

Biomolecules 2024-05-08

Biomolecules crossword puzzle
Across
  1. Substance that can enhance the reaction speed.
  2. the area in an enzyme where chemial reaction occurs
  3. The writing on the left side of the yield in a chemical equation
  4. one of a protein's jobs; speeds up chemical reactions
  5. aka Nucleobase, the backbone of Nucleotides
  6. a molecule produced by a living organism
  7. the SUBparagraphs of substances or layers
  8. Made of Amino Acids
  9. the amount of energy needed to take a substance from the ground state to the transition state (intermediate)
  10. A biomolecule that is useful for fast-use energy
  11. DNA and RNA are good examples of this Biomolecule
  12. Consists of fatty acids and oils (no particular monomer)
Down
  1. The monomer of protiens
  2. the backbone of DNA
  3. also called the "building block" of biomolecules
  4. made from the breakdown of fats (through hydrolysis)
  5. made from monomers; the next step up
  6. a basic chemical reaction where water breaks down most of a substance
  7. Two or more reactants make this:

19 Clues: the backbone of DNA • Made of Amino Acids • The monomer of protiens • Two or more reactants make this: • made from monomers; the next step up • a molecule produced by a living organism • the SUBparagraphs of substances or layers • aka Nucleobase, the backbone of Nucleotides • Substance that can enhance the reaction speed. • also called the "building block" of biomolecules • ...

Sharifa 2.1 vocab 2021-10-26

Sharifa 2.1 vocab crossword puzzle
Across
  1. a chemical reaction that gives off heat energy
  2. the substances present before a chemical reaction
  3. a chemical reaction that absorbs heat energy
  4. a chemical reaction
Down
  1. a chemical change
  2. the substances that are formed during a chemcial reaction
  3. a change in matter that doesnt affect its chemical compostion
  4. material that has mass and takes up space

8 Clues: a chemical change • a chemical reaction • material that has mass and takes up space • a chemical reaction that absorbs heat energy • a chemical reaction that gives off heat energy • the substances present before a chemical reaction • the substances that are formed during a chemcial reaction • a change in matter that doesnt affect its chemical compostion

Reaction Rates 2013-05-22

Reaction Rates crossword puzzle
Across
  1. Endothermic reactions feel ....
  2. Exothermic reactions feel ....
  3. The measure of how much solute is dissolved in a certain volume of solution
  4. To increase concentration you need more molecules in the same ...
  5. If a reaction occurs quickly, the reaction rate is ....
  6. An example of an exothermic reaction
  7. Increasing this usually causes a greater chance of collision
  8. Reaction that requires energy
  9. Reaction rates are like this at low concentration
  10. What you need to do to surface area to speed up a reaction
  11. The reaction will speed up if the concentration is ....
Down
  1. A reaction that gives off heat and light energy; a fuel reacting with oxygen
  2. Reaction that releases energy
  3. The total mass of the reactants equals the total mass of the ....
  4. An example of an endothermic reaction
  5. The graph line at the start of a fast reaction looks like this
  6. These help reactions go faster
  7. The .... theory of matter: matter is not created or destroyed during a chemical reaction
  8. Increasing the temperature gives the particles more ...
  9. A biological catalyst

20 Clues: A biological catalyst • Reaction that releases energy • Reaction that requires energy • Exothermic reactions feel .... • These help reactions go faster • Endothermic reactions feel .... • An example of an exothermic reaction • An example of an endothermic reaction • Reaction rates are like this at low concentration • If a reaction occurs quickly, the reaction rate is .... • ...

Chemistry terms 2025-02-10

Chemistry terms crossword puzzle
Across
  1. A substance that takes part in and undergoes change during a reaction.
  2. Measures a chemical’s randomness and describes the disorder of molecules based on the number of different arrangements available to them given a system or reaction.
  3. A reaction formed by absorbing heat (the final energy is greater than the starting energy).
  4. An apparatus used to conduct chemical reactions, such as a fermentor or a catalytic converter.
  5. A device or apparatus that facilitates a chemical reaction or transformation of substances.
Down
  1. A substance or mixture for use in chemical analysis or other reactions.
  2. The result of the reaction.
  3. An increase or decrease of energy during a chemical reaction.
  4. A reaction or process that releases / loses heat (the chemical’s final energy is less than its starting energy).
  5. Rapid chemical combination of a substance with oxygen, involving the production of heat and light.

10 Clues: The result of the reaction. • An increase or decrease of energy during a chemical reaction. • A substance that takes part in and undergoes change during a reaction. • A substance or mixture for use in chemical analysis or other reactions. • A reaction formed by absorbing heat (the final energy is greater than the starting energy). • ...

The Basics of Chemistry 2013-02-25

The Basics of Chemistry crossword puzzle
Across
  1. Sweet, colorless, oily substance used as a solvent and moisturizer
  2. Chemical reaction that combines a substance with oxygen to produce an oxide
  3. Does not have a definite volume or shape
  4. Water loving
  5. An atom or molecule that carries an electrical charge
  6. The study of substances that do not contain carbon, but may contain hydrogen
  7. Particles from which all matter is composed
  8. Rapid oxidation of a substance that is characterized by the production of heat and light
  9. Substances that act as a bridge to allow oil and water mix
  10. Multiple of ten
  11. The result of two or more atoms being joined together
  12. Mix
  13. Dissolved substance in a solution
  14. Physical mixture of two solids
Down
  1. Unstable mixture of undissolved particles in a liquid
  2. Chemical reaction in which heat is released
  3. Stable uniform blend of two or more mixable substances
  4. The study of substances that contain carbon
  5. Owe their chemical relativity to the hydrogen ion
  6. Simplest form of matter
  7. Chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized.
  8. Science that deals with the composition, structures, and properties of matter and how matter changes under different conditions
  9. Owe their chemical relativity to the hydroxide ion
  10. Mutually soluble and can be mixed in any proportion without separating
  11. Has a definite shape, volume and weight
  12. Called the "universal solvent"

26 Clues: Mix • Water loving • Multiple of ten • Simplest form of matter • Physical mixture of two solids • Called the "universal solvent" • Dissolved substance in a solution • Has a definite shape, volume and weight • Does not have a definite volume or shape • Chemical reaction in which heat is released • The study of substances that contain carbon • ...

Chemical Reactions Vocab 2025-12-10

Chemical Reactions Vocab crossword puzzle
Across
  1. Stored in atom bonds; it is released during chemical reactions.
  2. The flow of energy between two things.
  3. A chemical reaction that ABSORBS energy.
  4. The result of a chemical reaction.
Down
  1. A way to write out chemical reactions is a Chemical ____________.
  2. What we start with in a chemical reaction.
  3. A chemical reaction that RELEASES energy.
  4. A change that turns matter into something new is a Chemical _____________.

8 Clues: The result of a chemical reaction. • The flow of energy between two things. • A chemical reaction that ABSORBS energy. • A chemical reaction that RELEASES energy. • What we start with in a chemical reaction. • Stored in atom bonds; it is released during chemical reactions. • A way to write out chemical reactions is a Chemical ____________. • ...

Biology - Module 6 Vocab 2023-09-20

Biology - Module 6 Vocab crossword puzzle
Across
  1. substance that releases hydroxide ions when dissolved in water
  2. minimum amount of energy needed for reactants to form products in a chemical reaction
  3. substance that is dissolved in a solvent
  4. substance that lowers the activation energy needed to start a chemical reaction
  5. A substance that cannot be broken down into other substances
  6. substance formed during a chemical reaction
Down
  1. mixture that can react with an acid or a base to keep the pH within a particular range
  2. large molecule that is formed by joining smaller organic molecules
  3. substance in which another substance is dissolved
  4. A substance that cannot be broken down into other substances
  5. molecule made from repeating units of identical or nearly identical compounds
  6. protein that speeds up a chemical reaction in a biological process
  7. molecule that has oppositely charged regions

13 Clues: substance that is dissolved in a solvent • substance formed during a chemical reaction • molecule that has oppositely charged regions • substance in which another substance is dissolved • A substance that cannot be broken down into other substances • A substance that cannot be broken down into other substances • ...

Perfect 10: Chemical Reactions 2020-01-31

Perfect 10: Chemical Reactions crossword puzzle
Across
  1. A system in which no matter is allowed to enter or leave
  2. The elements or compounds produced by a chemical reaction.
  3. the process by which one or more substances change to produce one or more different substances
  4. A reaction that ABSORBS energy in the form of heat
  5. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
  6. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
Down
  1. A reaction that releases energy in the form of heat
  2. A starting material in a chemical reaction
  3. A system in which matter can enter from or escape to the surroundings.
  4. A solid that forms from a solution during a chemical reaction.

10 Clues: A starting material in a chemical reaction • A reaction that ABSORBS energy in the form of heat • A reaction that releases energy in the form of heat • A system in which no matter is allowed to enter or leave • The elements or compounds produced by a chemical reaction. • A solid that forms from a solution during a chemical reaction. • ...

Unit 6 Vocab 2022-03-18

Unit 6 Vocab crossword puzzle
Across
  1. a reaction in which one element is substituted for another element in a compound.
  2. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
  3. the action or process of dissolving or being dissolved.
  4. the action or process of precipitating a substance from a solution.
Down
  1. dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions
  2. The species formed from the chemical reactions.
  3. A substance that takes part in and undergoes change
  4. the state or process of rotting; decay.
  5. a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product
  6. A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
  7. the production of chemical compounds by reaction from simpler materials.
  8. rapid chemical combination of a substance with oxygen, involving the production of heat and light.

12 Clues: the state or process of rotting; decay. • The species formed from the chemical reactions. • A substance that takes part in and undergoes change • the action or process of dissolving or being dissolved. • the action or process of precipitating a substance from a solution. • the production of chemical compounds by reaction from simpler materials. • ...

Chapter 1.1 Vocabulary What is Matter? 2025-04-22

Chapter 1.1 Vocabulary What is Matter? crossword puzzle
Across
  1. Change: A change that transforms substances into new substances with different properties.
  2. The smallest unit of matter, composed of protons, neutrons, and electrons.
  3. Solid substance formed from a solution during a chemical reaction.
  4. Change: A change affecting the form but not the composition of a substance.
  5. of Mass: Mass cannot be created or destroyed in a closed system during changes.
  6. A pure substance consisting entirely of one type of atom.
  7. Anything that has mass and takes up space.
Down
  1. A number in front of a chemical formula in an equation indicating quantity.
  2. A substance formed from two or more elements chemically bonded.
  3. Two or more atoms chemically bonded together.
  4. Substances that start a chemical reaction.
  5. of Matter: The physical forms of matter—solid, liquid, and gas.
  6. Substances formed by a chemical reaction.
  7. Equation: A symbolic representation of a chemical reaction.
  8. A combination of substances that can be physically separated.

15 Clues: Substances formed by a chemical reaction. • Substances that start a chemical reaction. • Anything that has mass and takes up space. • Two or more atoms chemically bonded together. • A pure substance consisting entirely of one type of atom. • Equation: A symbolic representation of a chemical reaction. • A combination of substances that can be physically separated. • ...

Science Metalanguage 2021-02-22

Science Metalanguage crossword puzzle
Across
  1. The process used by all living cells to release energy
  2. A reaction that transforms light energy into chemical energy
  3. A reaction that absorbs energy
  4. A reaction where a fuel reacts with oxygen and releases energy
Down
  1. The re-arrangement of atoms to form one or more new substances
  2. A simple sugar made up of carbon, hydrogen and oxygen
  3. A substance that reacts to form one or more new substances
  4. A substance that can burn, releasing energy
  5. Energy required to break bonds to start a chemical reaction
  6. An attractive force that holds two atoms together
  7. A substance formed by a chemical reaction

11 Clues: A reaction that absorbs energy • A substance formed by a chemical reaction • A substance that can burn, releasing energy • An attractive force that holds two atoms together • A simple sugar made up of carbon, hydrogen and oxygen • The process used by all living cells to release energy • A substance that reacts to form one or more new substances • ...

Matter Mid Unit 24-25 2024-10-22

Matter Mid Unit 24-25 crossword puzzle
Across
  1. state of matter with no definite shape or size
  2. subatomic particle with positive charge, found in nucleus of atom
  3. the building blocks of matter
  4. a change that does not change identity of substance
  5. a change that causes the identity of the substance to change
  6. a solid that is created during a chemical change
  7. when a reaction reaction is sealed so the mass of the reactants will be the same as the mass of the products.
  8. Properties that will change the chemical makeup of the substance
  9. is a property that can be observed without changing the identity of a substance. (using your senses)
Down
  1. the ability of a substance to break down in a liquid
  2. In a chemical reaction, mass isn’t created or destroyed, it just gets rearranged into new substances.
  3. when a reaction is not sealed and the matter is able to escape
  4. the ability of a substance to burn
  5. part of the atom that holds the protons and neutrons
  6. how tightly packed atoms are in a certain amount of space
  7. anything that has mass and takes up space
  8. state of matter where particles flow freely but always of the same volume
  9. subatomic particle with positive neutral, found in nucleus of atom
  10. the ability of a substance to undergo a chemical change
  11. subatomic particle with negative charge, found outside the nucleus of atom
  12. state of matter where particles are tight together and vibrate slightly

21 Clues: the building blocks of matter • the ability of a substance to burn • anything that has mass and takes up space • state of matter with no definite shape or size • a solid that is created during a chemical change • a change that does not change identity of substance • the ability of a substance to break down in a liquid • ...

Chemistry Crossword Puzzle 2026-02-24

Chemistry Crossword Puzzle crossword puzzle
Across
  1. A gas produced during combustion and respiration.
  2. The glowing gaseous part of a fire where combustion occurs.
  3. A substance with a pH of 7 that is neither acidic nor basic.
  4. Elements that conduct heat and electricity and are usually shiny and malleable.
  5. A tool used to magnify small objects so they can be seen clearly.
  6. Describing a substance that is basic with a pH greater than 7.
  7. A fabric heated without oxygen that ignites easily and is used to start fires.
  8. A scale used to measure how acidic or basic a substance is.
  9. Substances formed as a result of a chemical reaction.
  10. Compounds formed from the reaction between an acid and a base.
  11. Substances that release hydroxide ions in water and have a high pH.
Down
  1. The branch of science that studies substances, their properties, and how they change.
  2. The careful use of senses or tools to gather information.
  3. A gas required for combustion and many chemical reactions.
  4. The visible result of combustion that releases heat and light.
  5. Water in its gaseous state.
  6. Substances that release hydrogen ions in water and have a low pH.
  7. Substances that take part in a chemical reaction.
  8. A chemical reaction in which a substance reacts with oxygen and releases energy.
  9. Thermal energy transferred from a warmer object to a cooler one.
  10. A substance that provides energy when it undergoes combustion.
  11. A series of steps that lead to a specific result.

22 Clues: Water in its gaseous state. • A gas produced during combustion and respiration. • Substances that take part in a chemical reaction. • A series of steps that lead to a specific result. • Substances formed as a result of a chemical reaction. • The careful use of senses or tools to gather information. • A gas required for combustion and many chemical reactions. • ...

chemistry crossword 2015-11-10

chemistry crossword crossword puzzle
Across
  1. a fourth state of matter
  2. a change from a liquid to a gas
  3. compound when two non-metals combine
  4. when oxygen reacts with a substance to form a new substance and give off energy
  5. compounds are pure substances consisting of at least one metal and one non-metal
  6. a change from a gas to a liquid
  7. have both metallic and non-metallic properties
  8. the amount of mass in a given volume of substance
  9. properties used to identify matter ex- color and luster
  10. point changes from a solid to liquid
Down
  1. change its appearance or state may be altered,but its composition stays the same
  2. substances ability to resist being scratched
  3. substance that help a reaction proceed faster
  4. is a material that cannot be broken down into any simpler substance
  5. is the ability of a substance to conduct electricity or heat
  6. mass is the mass or one atom or an element
  7. respiration a chemical reaction that takes place in the cells in your body
  8. chemical reaction that releases heat energy
  9. a slow chemical change that occurs when oxygen in the air reacts with a metal
  10. substance that can be pounded or rolled into sheets
  11. mixture different substances that make up the mixture are visible
  12. any solid that can be stretched into a long wire
  13. chemical reaction that absorbs heat energy
  14. the ability of a substance to be dissolved in another
  15. point changes from a liquid to a gas

25 Clues: a fourth state of matter • a change from a liquid to a gas • a change from a gas to a liquid • compound when two non-metals combine • point changes from a liquid to a gas • point changes from a solid to liquid • chemical reaction that absorbs heat energy • mass is the mass or one atom or an element • chemical reaction that releases heat energy • ...

Chemistry Crossword - Jhuan 9B 2019-11-06

Chemistry Crossword - Jhuan 9B crossword puzzle
Across
  1. Solids at room temperature, often malleable, often has lustre, and conducts electricity
  2. _______ ____ model, created by John Dalton
  3. a particle with a positive charge
  4. is a chemical reaction that takes place in the cells in your body
  5. a substance that reacts with another substance in a chemical reaction to create a new substance with different products or properties
  6. a new substance produced in a chemical reaction
  7. releases heat (example: fire)
  8. a particle with a negative charge
  9. compounds that consist of ions (a group of atoms that have become electrically charged)
  10. "The Father of Modern Chemistry"
  11. a very stable and unreactive gas
Down
  1. takes place when two or more substances combine to form new ones
  2. the horizontal rows in the periodic table of elements
  3. have mixed properties of both metals and non-metals
  4. reacts to air and water: less reactive than alkaline metals
  5. absorbs heat (example: ice pack)
  6. the sum two non-metals combining, forming a pure substance called a _________.
  7. a very reactive metal, especially in air and water
  8. is a fast chemical reaction that occurs whens oxygen reacts with a substance to form a new substance; gives off energy
  9. often a liquid or gas at room temperature (can be solids sometimes, aren't malleable, do not conduct electricity, and usually has no lustre
  10. a particle with a neutral charge
  11. extremely reactive non-metals
  12. one of the three factors of the fire triangle
  13. the vertical columns in the periodic table of elements

24 Clues: releases heat (example: fire) • extremely reactive non-metals • absorbs heat (example: ice pack) • a particle with a neutral charge • "The Father of Modern Chemistry" • a very stable and unreactive gas • a particle with a positive charge • a particle with a negative charge • _______ ____ model, created by John Dalton • one of the three factors of the fire triangle • ...

Physical Science Vocab 4B 2022-12-02

Physical Science Vocab 4B crossword puzzle
Across
  1. an equation where the number of atoms of each type in the reaction is the same on both reactants and product sides
  2. a substance made by mixing other substances together
  3. substances breakdown into simpler substances
  4. the basic unit of a chemical element
  5. a subatomic particle found in the nucleus of every atom except that of simple hydrogen
  6. the number in front of the formula
  7. a substance whose atoms all have the same number of protons
  8. Atoms with the same number of protons but different numbers of neutrons
  9. a type of subatomic particle with a positive charge
  10. anything that has weight and takes up space
  11. a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light.
Down
  1. the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
  2. Chemical reactions that release energy
  3. a substance that is formed as the result of a chemical reaction
  4. a chemical change which forms new substances
  5. A reaction that absorbs energy
  6. tiny, negatively charged particles in an atom that move around the positive nucleus at the center
  7. a number, or variable, that is written in small script at the top right of another number or a variable
  8. the composition or combination of parts or elements so as to form a whole
  9. the amount of matter present in any object

20 Clues: A reaction that absorbs energy • the number in front of the formula • the basic unit of a chemical element • Chemical reactions that release energy • the amount of matter present in any object • anything that has weight and takes up space • substances breakdown into simpler substances • a chemical change which forms new substances • ...

Unit 7: Climate Change Chemistry Vocabulary 2023-05-18

Unit 7: Climate Change Chemistry Vocabulary crossword puzzle
Across
  1. A chemical reaction that can go in both directions: _____ Reaction.
  2. H+ What forms from an acid dissociating
  3. OH- What forms from an base dissociating
  4. The chemical created when Carbon Dioxide (CO2) combines with Water (H2O)
  5. A reaction that releases energy
  6. A substance with the pH of 1-7
  7. The amount of carbon going in and out of the atmopshere
  8. The measure of a substances acidity
Down
  1. A substance with a pH of 7-14
  2. When the rate of the products and reactants are equal: Chemical ____________.
  3. The concept that the ocean is getting watermer and the pH is decreasing due to climate change: Ocean ___________.
  4. An very small ocean creature who is made up a shell skelton, that is effected by ocean acidification
  5. A reaction that absorbs energy
  6. What shells are made up of
  7. The idea that the earth’s climate us changing as wet places flood and dryer places get dryer.

15 Clues: What shells are made up of • A substance with a pH of 7-14 • A reaction that absorbs energy • A substance with the pH of 1-7 • A reaction that releases energy • The measure of a substances acidity • H+ What forms from an acid dissociating • OH- What forms from an base dissociating • The amount of carbon going in and out of the atmopshere • ...

Science Unit 2 Crossword 2018-11-29

Science Unit 2 Crossword crossword puzzle
Across
  1. pH of less than 7
  2. scale used to classify solutions
  3. a solid substance formed when two solutions are chemically combined.
  4. new substances formed in a chemical reaction and that they are located on the right side of the arrow in a chemical equation.
  5. do not change the composition of a substance, only the physical properties
  6. result in the formation of one or more new substances with new chemical and physical properties
  7. The amount of matter does not change during a chemical reaction, only that the atoms are rearranged to form new substances. This is evidenced in a balanced chemical equation.
  8. pH of more than 7
Down
  1. be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition.
  2. substances broken apart or combined in a chemical reaction and that they are located on the left side of the arrow in a chemical equation
  3. can be observed and measured without changing the kind of matter being studied.
  4. substance that increases the rate of a chemical reaction

12 Clues: pH of less than 7 • pH of more than 7 • scale used to classify solutions • substance that increases the rate of a chemical reaction • a solid substance formed when two solutions are chemically combined. • do not change the composition of a substance, only the physical properties • can be observed and measured without changing the kind of matter being studied. • ...

Chemistry Timeline Kyle ontiveros 2018-11-14

Chemistry Timeline Kyle ontiveros crossword puzzle
Across
  1. a column of elements in the periodic table, also called a family
  2. are experts in chemistry
  3. a one or two letter abbreviation for a specific element
  4. can be rolled
  5. the father of modern chemistry
  6. a measure of how easily an element will bond with other elements to form compounds
  7. a substance (such as gold, tin, or copper) that usually has a shiny appearance, is a good conductor of electricity and heat, can be melted, and is usually capable of being shaped.
  8. one of the starting substances in a chemical reaction, which may be changed during the course of the reaction. They are written on the left side of chemical equations.
  9. a positively charged particle
  10. a row of elements on a periodic table
  11. have properties of both metals and nonmetals, Some are semiconductors.
Down
  1. One of the substances made during a chemical reaction, They are written on the right side of chemical equations
  2. a negatively charged particle
  3. Elements which do not exhibit metallic properties
  4. A substance composed of 2 or more elements or compounds that are not chemically combined, cannot be separated
  5. were the first chemists
  6. the unit of measurement for subatomic particles
  7. can be stretched
  8. A substance composed of 2 or more elements that are chemically combined together, can be separated
  9. the small number after an individual element’s symbol in a chemical formula. It shows how many atoms of that element are present in the compound.
  10. the temperature where a substance changes from a solid to a liquid
  11. the center of an atom, containing protons and neutrons.
  12. a substance that cannot be broken down into a simpler substance
  13. a slow reaction between air and metal
  14. the smallest particle of an element which can exist by itself

25 Clues: can be rolled • can be stretched • were the first chemists • are experts in chemistry • a negatively charged particle • a positively charged particle • the father of modern chemistry • a slow reaction between air and metal • a row of elements on a periodic table • the unit of measurement for subatomic particles • Elements which do not exhibit metallic properties • ...