chemical reaction Crossword Puzzles

Photosynthesis 2024-11-29

Photosynthesis crossword puzzle
Across
  1. green pigment that absorbs light
  2. substance made during chemical reaction
  3. cell cell that helps to form the stoma in a leaf, to allow gases in and out
  4. respiration release of energy in the presence of oxygen
  5. plant cell that is adapted to form hollow tubes to transport water
  6. hole in leaf, formed between two guard cells
  7. particles spread out from a high concentration to a low concentration
  8. large, insoluble carbohydrate made by plants to store energy
Down
  1. sugar made in photosynthesis
  2. a chemical reaction in which carbon dioxide and water is converted to glucose an oxygen
  3. substance that changes in a chemical reaction to form products
  4. green part of a cell that contains chlorophyll
  5. substance made from elements
  6. the property of dissolving in water

14 Clues: sugar made in photosynthesis • substance made from elements • green pigment that absorbs light • the property of dissolving in water • substance made during chemical reaction • hole in leaf, formed between two guard cells • green part of a cell that contains chlorophyll • respiration release of energy in the presence of oxygen • ...

Crossword Puzzle Chapter 2 2023-09-20

Crossword Puzzle Chapter 2 crossword puzzle
Across
  1. The building block of matter; the smallest possible particle of an element.
  2. A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
  3. An attraction between two atoms as a result of sharing or transferring valence electrons.
  4. The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
  5. A class of simple organic compounds is important in living things as a source of both energy and structure.
  6. The tendency of energy to disperse and become less available to do work.
  7. A substance that can produce hydroxide ions (OH­ accept hydrogen ions (H+) in solution.
  8. The smallest particle of a covalently bonded compound.
  9. A substance that is present before a chemical reaction and takes part in it, usually shown on the left hand side of a chemical equation.
  10. A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
  11. acid A class of organic compounds that serve as the building blocks of proteins.
  12. The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
  13. A substance that can produce hydrogen ions (H+) in solution.
  14. A substance that binds to an enzyme and re­ duces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
  15. A pure substance made of only one kind of atom.
  16. substances formed during a chemical reaction, usually indicated on the right hand side of a chemical equation.
  17. change A change in a substance that does not change the identity of the substance (e.g., a change of form or state).
Down
  1. Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a molecule having negative charge while others are positive.
  2. An organic compound composed of the elements carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
  3. A pure substance made from two or more elements that are chemically combined
  4. A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
  5. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
  6. change A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
  7. The physical stuff that makes up the universe. Any­ thing that occupies space and has mass.
  8. A measurement of the average speed of the particles within a substance
  9. The attraction of particles in one substance for particles in a different substance.
  10. compound A covalently bonded compound containing the element carbon.
  11. A naturally occurring catalyst, usually a protein.
  12. The process by which one substance, the solute, is broken up into smaller pieces by and distributed within a second substance, the solvent.

29 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The smallest particle of a covalently bonded compound. • A substance that can produce hydrogen ions (H+) in solution. • A measurement of the average speed of the particles within a substance • ...

Reaction Kinetics 2012-12-16

Reaction Kinetics crossword puzzle
Across
  1. An intermediate molecule which occurs when reactants are in the process of rearranging to form products
  2. The energy which a system possesses because of movement within the system
  3. A reaction which absorbs heat, so that products have more energy than reactants
  4. A reaction which gives off heat, so that products have less energy than reactants
  5. Step The slowest step in a reaction mechanism
  6. The total kinetic and potential energy which exists in a system when it is at constant pressure
  7. The energy existing as a result of an object's position in space
  8. A reaction in which all the reactants are in the same phase
Down
  1. A chemical which can be added to a reaction to increase the rate of the reaction
  2. The amount of a reactant or product involved in a reaction in a specific time
  3. The minimum potential energy required to change reactants into an activated complex
  4. A chemical which reduces a reaction rate by combining with a catalyst or one of the reactants in such a way as to prevent the reaction from occurring
  5. The theory stating that molecules act as small, hard spheres which bounce off each other and transfer energy among themselves during their collisions
  6. A reaction in which the reactants are present in different phases

14 Clues: Step The slowest step in a reaction mechanism • A reaction in which all the reactants are in the same phase • The energy existing as a result of an object's position in space • A reaction in which the reactants are present in different phases • The energy which a system possesses because of movement within the system • ...

KR - Rates of reaction 2021-09-21

KR - Rates of reaction crossword puzzle
Across
  1. What is volume measure in?
  2. complete the equation Reactant --> ____________
  3. What is needed for a chemical reaction to take place?
  4. A measurement of time
  5. a biological catalyst
  6. A type of chemical reaction where energy is released to the surroundings
Down
  1. What peice of equipment is used to measure volume?
  2. the minimum amount of energy to start a chemical reaction
  3. a factor that can affect the rate of reaction

9 Clues: A measurement of time • a biological catalyst • What is volume measure in? • a factor that can affect the rate of reaction • complete the equation Reactant --> ____________ • What peice of equipment is used to measure volume? • What is needed for a chemical reaction to take place? • the minimum amount of energy to start a chemical reaction • ...

Photosynthesis and Cellular Respiration 2022-09-30

Photosynthesis and Cellular Respiration crossword puzzle
Across
  1. the process in which glucose is broken down to produce energy
  2. the layers of gases surrounding a planet or other celestial body.
  3. a pigment that gives plants their green color and absorbs sunlight for photosynthesis
  4. any series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate
  5. living, active, occurring, or existing in the absence of free oxygen
  6. an organism that eats other plants or animals for energy and nutrients
  7. the parts of earth where life exists
  8. membrane-bound organelles that generate most of the chemical energy needed to power the cells biochemical reaction
Down
  1. organism that breaks down dead organic material
  2. chemical process by which molecules such as glucose are broken down anaerobically
  3. an organelle within the cells of plants that is the site of photosynthesis
  4. an organism that can produce its own food using light, water, and carbon dioxide.
  5. anything that occupies space and has mass
  6. the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
  7. the total amount of water on the planet
  8. a substance that enters into and is altered in the course of a chemical reaction
  9. related to, involving, or requiring free oxygen
  10. all the rock, soil and sediments that make up earths land
  11. the process of converting glucose into a form of energy (ATP) that is usable by cells
  12. a substance that is present at the end of a chemical reaction

20 Clues: the parts of earth where life exists • the total amount of water on the planet • anything that occupies space and has mass • organism that breaks down dead organic material • related to, involving, or requiring free oxygen • all the rock, soil and sediments that make up earths land • the process in which glucose is broken down to produce energy • ...

Chemistry Task 2023-06-19

Chemistry Task crossword puzzle
Across
  1. the tendency of electrons to prefer to have eight electrons in the valency shell
  2. a substance that increases the rate of a chemical reaction without itself undergoing any chemical permanent change
  3. a negatively charged ion
  4. when a reaction absorbes heat
  5. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  6. a flammable hydrocarbon gas of the alkane series, present in natural gas and used as bottled fuel
  7. the outer mostshell of electrons
  8. having electrical or magnetic *******
  9. an uncharged atomic particle that has a mass nearly equal to that of the proton
  10. each of the actual or potential patterns of electron density which may be formed in an atom or molecule by one or more electrons, and can be represented as a wave function
  11. a pair of equal or oppositely charged or magnetized poles separated by a distance
Down
  1. a colourless, odorless flammable gas which is the main constituent of natural gas
  2. the charge number of an atomic nucleus
  3. a positively charged ion
  4. a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory
  5. a stable subatomic particle with a charge of negative electricity
  6. a homogenous mixture of two or more substances
  7. the mass of an atom of a chemical element
  8. relating to or denoting chemical bonds formed by the sharing of electrons between atoms
  9. the combining power of an element
  10. when a reaction releases heat
  11. the smallest particle of a chemical element that cam exist

22 Clues: a positively charged ion • a negatively charged ion • when a reaction absorbes heat • when a reaction releases heat • the outer mostshell of electrons • the combining power of an element • having electrical or magnetic ******* • the charge number of an atomic nucleus • the mass of an atom of a chemical element • a homogenous mixture of two or more substances • ...

Electrochem 2024-04-21

Electrochem crossword puzzle
Across
  1. the cell potential when the salt concentrations of all salt solutions are 1.0mol/L under standard conditions of temperature and pressure
  2. a circuit outside the reactions vessel in which redox reactions are occurring
  3. the process of removing impuritiesOxidation number a number equal to the charge that an atom would have if no electrons were shared but instead were possessed by the atom with the greatest electronegativity
  4. a substance that when dissolved in water, conducts an electric current
  5. a reactant that donates electrons thus reduces another reactantHalf-reaction an equation that describes changes in only the compound that is oxidized or the compound that is reduced Disproportionation reaction a reaction in which some atoms of an element are oxidized and other atoms of the same element are reduced
  6. abbreviated form of oxidation- reduction reactionIonic equation an equation in which soluble ionic compounds are written as individual ions
  7. Ions that are present in a solution but do not change during a reaction
  8. the potential difference between a given half-cell and a hydrogen half-cell, written as a reduction reaction, when all solutes are present at 1.0 mol/L concentrations at SATP and hydrogen gas is at 1.0 atm of pressure
  9. a shorthand method of representing galvanic cells
  10. a device that uses redox reactions to transform chemical potential energy into electrical energy
  11. The study of processes involved in converting chemical energy into electrical energy and converting electrical energy into chemical energy
Down
  1. The loss of electrons
  2. an electrical connection between half cells that contain an electrolyte solution allowing a current to flow but preventing contact between the oxidizing agent and the reducing agent
  3. a conductor that consists of neither the reactant nor the product but provides a surface on which redox reaction can occur.
  4. an ionic equation in which the spectator ions are omitted Oxidizing agent a reactant that accepts electrons and thus oxidizes another reactant
  5. a directional motion of electric charges
  6. a technique that uses direct electric current (DC) to drive an otherwise non-spontaneous chemical reaction
  7. a common term for electrical potential differenceCell potential the electrical potential difference between the two electrodes of a cell
  8. difference between two points, is the amount of energy that a unit charge would gain by moving from one point to the other
  9. The gain of electrons
  10. any device in which electrical energy is converted to chemical energy, or vice versa
  11. the electrode at which oxidation occurs
  12. a conductor that carries electric current into and out of electrochemical cells
  13. the melting of ore and reduction of metal ions to atoms, then separating the metal from non-metal substances
  14. the electrode at which reduction occurs

25 Clues: The loss of electrons • The gain of electrons • the electrode at which oxidation occurs • the electrode at which reduction occurs • a directional motion of electric charges • a shorthand method of representing galvanic cells • a substance that when dissolved in water, conducts an electric current • Ions that are present in a solution but do not change during a reaction • ...

Unit 2 Biochemistry Vocab Crossword 2020-10-04

Unit 2 Biochemistry Vocab Crossword crossword puzzle
Across
  1. area where enzyme and substrate fit together during reaction
  2. two simple sugars combined
  3. any chemical with pH ranging from 8 to 14
  4. proteins that speed up chemical reactions in living organisms
  5. “building blocks” of protein
  6. any chemical with pH ranging from 0 to 6
  7. this type of molecule helps cells do all of the jobs needed to stay alive
  8. organic energy storage compound
Down
  1. complex carbohydrate made of MANY simple sugars chemically combined
  2. large, complex organic molecules that store genetic information
  3. substance(s) that an enzyme causes to react
  4. breaking a large molecule into smaller molecules by adding water
  5. this molecule provides large amounts of energy for living things
  6. building a larger molecule by combining 2 smaller molecules and removing water
  7. amount of energy needed to start a chemical reaction
  8. these molecules are made by plants
  9. any molecule that has carbon in it

17 Clues: two simple sugars combined • “building blocks” of protein • organic energy storage compound • these molecules are made by plants • any molecule that has carbon in it • any chemical with pH ranging from 0 to 6 • any chemical with pH ranging from 8 to 14 • substance(s) that an enzyme causes to react • amount of energy needed to start a chemical reaction • ...

Exam Review 2022-05-09

Exam Review crossword puzzle
Across
  1. A change that occurs when one or more substances change into entirely new substances with different chemical and physical properties
  2. A change in global or regional climate patterns, due largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels
  3. Receives the most direct sunlight on Earth
  4. Living or once living parts of an ecosystem (ex. animals, bacteria)
  5. A state of matter that HAS a definite shape and a definite volume
  6. Sugar, manufactured during photosynthesis, main source of energy for plans and animals, metabolized during cellular respiration
  7. Smallest piece of an element that still represents that element
  8. The process in which carbon dioxide is released by exhaling, and oxygen is taken in during inhaling (breathing)
  9. A substance produced after a chemical reaction occurs
  10. The process by which plants make their own food using the sun's energy to convert water and carbon dioxide into sugars
  11. A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound
  12. Electrons on the outermost energy level of an atom that participate in chemical bonding
  13. 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
  14. The process of a liquid changing into a gas at the surface of the liquid
  15. A chemical substance that is present at the start of a chemical reaction
  16. The rise in Earth's average surface temperature during the past 100 years
  17. Caused by the tilt of the earth's axis and revaluation around the sun
  18. The two days of the year on which neither hemisphere is tilted toward or away from the sun
Down
  1. A group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
  2. The spinning of Earth on its axis, also causes day and night
  3. Gases such as carbon dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere which are involved in the greenhouse effect
  4. Pure substance containing only one kind of atom
  5. The Law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction
  6. The change of state from a gas to a liquid
  7. Number never changes and helps identify an atom/positive charge
  8. A state of matter that has a definite volume but no definite shape
  9. Water in liquid or solid form, that falls from the atmosphere
  10. Subatomic particle with a negative charge and almost no mass
  11. Nonliving parts of an ecosystem (ex. sunlight, water)
  12. A change in the size, shape, form, or state of matter that does not change the matter's identity
  13. An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates
  14. Substance containing two or more kinds of elements

32 Clues: Receives the most direct sunlight on Earth • The change of state from a gas to a liquid • Pure substance containing only one kind of atom • Substance containing two or more kinds of elements • Nonliving parts of an ecosystem (ex. sunlight, water) • A substance produced after a chemical reaction occurs • The spinning of Earth on its axis, also causes day and night • ...

Biology 2021-11-22

Biology crossword puzzle
Across
  1. the totality of an organism’s chemical reactions.
  2. it is when the energy produced by one reaction or system is used to drive another reaction or system.
  3. an aggregate of pigments and proteins in the thylakoid membrane
  4. reactions a chemical reaction in which the standard change in free energy is positive
  5. occurs in the cytoplasm of the cell and does not require oxygen.
Down
  1. A biochemical process that involves the addition of phosphate to an organic compound.
  2. it is where the photosynthetic pigment chlorophyll captures the energy from sunlight
  3. the capacity to cause change.
  4. the greenish pigment found in the thylakoid membrane
  5. energy is the energy of chemical substances that is released when they undergo a chemical reaction and transform into other substances.

10 Clues: the capacity to cause change. • the totality of an organism’s chemical reactions. • the greenish pigment found in the thylakoid membrane • an aggregate of pigments and proteins in the thylakoid membrane • occurs in the cytoplasm of the cell and does not require oxygen. • it is where the photosynthetic pigment chlorophyll captures the energy from sunlight • ...

Chemical Reactions and Bonding 2023-01-17

Chemical Reactions and Bonding crossword puzzle
Across
  1. reaction, the process of matter being changed into a new form of matter using the same elements.
  2. slows down the rate of a chemical reaction
  3. Equation, tells what takes place during a chemical reaction.
  4. a number at the beginning of a chemical formula that represent the number of molecules present.
  5. of Conservation of Matter, regardless of how substances within a closed system change mass remains the same
  6. a small number in a chemical formula that represents the number of atoms for a single element
  7. the subatomic particles that atoms gain, lose, or share to form compounds.
Down
  1. bonding, the attractive force that give atoms the ability to stay together.
  2. Energy, the amount of energy needed to start a chemical reaction
  3. change, when matter goes through a chemical reaction and turns into a different form of matter.
  4. bond, when two nonmetallic elements react to form a compound.
  5. bond, when a metallic element reacts with a nonmetallic element.
  6. increases the rate of a chemical reaction
  7. two or more different elements chemically bonded together.

14 Clues: increases the rate of a chemical reaction • slows down the rate of a chemical reaction • two or more different elements chemically bonded together. • Equation, tells what takes place during a chemical reaction. • bond, when two nonmetallic elements react to form a compound. • Energy, the amount of energy needed to start a chemical reaction • ...

Chemistry Vocab Test 2022-02-25

Chemistry Vocab Test crossword puzzle
Across
  1. A neutrally charged particle found the nucleus and makes up half of the mass of an atom.
  2. A positively charged particle found the nucleus and makes up half of the mass of an atom.
  3. A substance produced in a chemical reaction
  4. The area surrounding the nucleus of an atom; where the electrons are found
  5. A substance made up of atoms of two or more different elements joined by chemical bonds
  6. A negatively charged particle found the electron cloud and has very little mass
  7. Chemical formulas and symbols written to represent a reaction
  8. A pure substance made of only one kind of atom and cannot be broken down
  9. The electrons in the outermost energy level of an atom that influence the reactivity of the element
Down
  1. A number in front of a chemical formula that shows how many molecules or atoms are present
  2. The number of protons in the nucleus of a single atom
  3. A number written to the bottom right of a chemical symbol that shows how many atoms of that element are in a compound.
  4. The columns on a Periodic Table that arrange the elements by the number of valence electrons in the outermost shell.
  5. The mass of an atom, approximately equal to the number of protons and neutrons in the atom
  6. A combination of symbols that represent the elements in a compound
  7. The rows in a Periodic Table that classify the elements by the number of electron shells/energy levels
  8. The tiny, very dense, positively charged region in the center of an atom; made up of protons and neutrons
  9. A chemical substance that is present at the start of a chemical reaction
  10. A group of atoms bonded together forming the smallest fundamental unit of a pure substance
  11. The basic unit of an element and makes up everything

20 Clues: A substance produced in a chemical reaction • The basic unit of an element and makes up everything • The number of protons in the nucleus of a single atom • Chemical formulas and symbols written to represent a reaction • A combination of symbols that represent the elements in a compound • A chemical substance that is present at the start of a chemical reaction • ...

Photosynthesis and Cellular Respiration 2023-02-02

Photosynthesis and Cellular Respiration crossword puzzle
Across
  1. substances that are made by a chemical reaction
  2. build larger molecules from smaller ones
  3. nonliving portion
  4. a pigment substance that gives off plants a green color
  5. absorbs energy
  6. process that makes a limited amount of ATP from glucose without an electron transport chain and that produces a characteristic end product, such as ethyl alcohol or lactic acid.
  7. requires oxygen
  8. an organism that obtains its energy by eating other organisms
  9. a consumer that only feeds on vegetation
  10. an enzyme’s active site gets deformed and loses its shape
  11. fluid-like substance that fills the space between the grana
  12. Membrane the membrane of the mitochondria that is the site of electron transport and chemiosmosis
  13. releases energy
  14. a consumer that only eats animals
  15. Respiration process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
  16. the overall process by which sunlight, water, and carbon dioxide are chemically converted into chemical energy stored in glucose
Down
  1. all of the chemical reactions within each cell of an organism
  2. a consumer that feeds on vegetation and animals
  3. an energy carrier molecule that carries/stores energy for cell functions
  4. break down larger molecules into simpler compounds
  5. reactions the breaking and forming of bonds between different substances during chemical changes
  6. organisms that eats all dead organisms
  7. substances that are changed during a chemical reaction
  8. mostly proteins that speed up biochemical reactions by lowering the activation energy
  9. without oxygen
  10. process of an organism making its own food using chemicals instead of sunlight
  11. pancake-like stacks of thylakoid membrane
  12. site a region that fits only one substrate
  13. substances that speed up reactions without being permanently altered
  14. energy the amount of energy needed to make a chemical reaction start
  15. organism that make their own food

31 Clues: absorbs energy • without oxygen • requires oxygen • releases energy • nonliving portion • organism that make their own food • a consumer that only eats animals • organisms that eats all dead organisms • build larger molecules from smaller ones • a consumer that only feeds on vegetation • pancake-like stacks of thylakoid membrane • site a region that fits only one substrate • ...

Crossword Puzzle for Chemistry Terms! 2024-07-19

Crossword Puzzle for Chemistry Terms! crossword puzzle
Across
  1. A type of chemical reaction that releases heat, making the surroundings warmer. For example, burning wood is an exothermic reaction because it gives off heat and light.
  2. A process where substances (reactants) are transformed into new substances (products) with different properties. For example, when vinegar and baking soda mix, they react to form carbon dioxide gas.
  3. A way to organize information and results from an experiment in rows and columns. It helps you keep track of what you observed and makes it easier to analyze the data.
  4. The starting substances in a chemical reaction. They are what you mix together to start a reaction.
  5. The new substances that are formed as a result of a chemical reaction. They appear after the reactants have reacted.
  6. The factor that you change or test in an experiment to see how it affects the outcome. For example, if you’re testing how light affects plant growth, the amount of light would be the independent variable.
  7. When your experimental results support your hypothesis, meaning your guess was correct. It shows that your prediction was right based on the evidence you collected.
Down
  1. A type of chemical reaction that absorbs heat from its surroundings, making the surroundings cooler. An example is photosynthesis in plants, where they absorb heat energy from the sun to make food.
  2. When your experimental results do not support your hypothesis, meaning your guess was not correct. It shows that your prediction was wrong and you need to reconsider your ideas.
  3. An educated guess or prediction about what you think will happen in an experiment based on what you already know. It’s like a starting point for your investigation.
  4. The factor that you measure or observe in an experiment, which changes based on the independent variable. For instance, in the plant growth experiment, the plant height would be the dependent variable.
  5. A visual representation of data, like a bar graph or line graph, which helps you see patterns and trends in your experiment results quickly.
  6. A substance that speeds up a chemical reaction without being used up or changed in the process. It's like a helper that makes reactions go faster.

13 Clues: The starting substances in a chemical reaction. They are what you mix together to start a reaction. • The new substances that are formed as a result of a chemical reaction. They appear after the reactants have reacted. • ...

Chapter 2 2019-01-17

Chapter 2 crossword puzzle
Across
  1. (atomic __)atomic mass
  2. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
  3. a solution that resists changes in pH when acid or alkali is added to it.
  4. a bond involving the sharing of electrons netween atoms
  5. a measure of the hydorgen ion concentration of a solution
  6. (atomic __) A number equal to the sum of all the neutrons and the protons in an atom's nucleus.
  7. a substance that liberates hydrogen ions when in an aqueous solution.
  8. also known as Bohr’s atomic model
  9. ribonucleic acid
  10. any of a class of sugars whose molecules contain two monosaccharide residues.
  11. single sugar
  12. anything that has mass and takes up space
  13. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  14. the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
  15. the outermost shell of an atom containing the valence electrons.
  16. amino acid
  17. Adenosine triphosphate
  18. (protein) antibodies is an example of this
  19. Carbon-containing compound.
  20. A reaction where bonds are broken and combined.
  21. Lack of carbon; compound.
  22. another term would be inert energy
  23. Also known as Electron shells
  24. particle with a neutral charge
  25. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  26. A reaction where 2 or more molecules or atoms combine to form a larger and more complex molecule.
  27. form the basic structural unit of nucleic acids
Down
  1. the energy of a body or a system with respect to the motion of the body or of the particles in the system.
  2. Basic unit of a chemical element.
  3. (atomic __)letters that represent an element
  4. a change from one state (solid or liquid or gas) to another without a change in chemical composition
  5. Energy form directly involved in putting the matter into motion.
  6. electrical charge
  7. a carbohydrate whose molecules consist of a number of sugar molecules bonded together.
  8. Composed of 2 or more elements.
  9. deoxyribonucleic acid
  10. energy that travels by waves or particles
  11. chemical reaction in which an acid and a base react quantitatively with each other.
  12. created in 1869
  13. (reaction)process in which molecules are formed, changed, or broken down.
  14. a radioactive isotope.
  15. fibrous proteins
  16. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
  17. one of a class of substances that cannot be separated into simpler substances by chemical means.
  18. particle with a negative charge
  19. (protein)spheroproteins
  20. organic compound composed of carbon, hydrogen, and oxygen; includes starches, sugars, and glucose.
  21. a region on an enzyme that binds to a protein or other substance during a reaction.
  22. A reaction where bonds are broken.
  23. (atomic __) the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  24. a group of atoms bonded together
  25. the ionized or ionizable constituents of a living cell, blood, or other organic matter.
  26. A bond that forms when electrons are transferred from one atom to another.
  27. a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
  28. Positive subatomic particle.
  29. a substance that accepts hydrogen ions
  30. include wax and oil; fatty acid

57 Clues: amino acid • single sugar • created in 1869 • fibrous proteins • ribonucleic acid • electrical charge • deoxyribonucleic acid • (atomic __)atomic mass • a radioactive isotope. • Adenosine triphosphate • (protein)spheroproteins • Lack of carbon; compound. • Carbon-containing compound. • Positive subatomic particle. • Also known as Electron shells • particle with a neutral charge • ...

Fritz Haber 2024-05-20

Fritz Haber crossword puzzle
Across
  1. Chemist who developed a process for synthesizing ammonia
  2. State of matter for both nitrogen and hydrogen
  3. Country where Haber conducted research
  4. Essential element fixed from the air in the Haber process
  5. Toxic gas used by Haber in chemical warfare
  6. General term for a chemical process
  7. Agricultural product significantly boosted by the Haber process
Down
  1. Study of the properties and behavior of matter
  2. Compound synthesized by the Haber process
  3. Gas combined with nitrogen in the Haber process
  4. Substance that increases the rate of a chemical reaction
  5. High condition required for the Haber process
  6. Context in which Haber's chemical warfare research took place
  7. Prize awarded to Fritz Haber in 1918

14 Clues: General term for a chemical process • Prize awarded to Fritz Haber in 1918 • Country where Haber conducted research • Compound synthesized by the Haber process • Toxic gas used by Haber in chemical warfare • High condition required for the Haber process • Study of the properties and behavior of matter • State of matter for both nitrogen and hydrogen • ...

Class 7 2025-09-03

Class 7 crossword puzzle
Across
  1. A change that can be easily undone or reversed.
  2. Metal that burns with a dazzling white light.
  3. Obtaining pure solids as crystals from a solution.
  4. Direct change from solid to gas.
  5. Insoluble solid formed during a chemical reaction.
  6. Coating iron with zinc to prevent corrosion.
Down
  1. A change that is permanent.
  2. Turns milky when carbon dioxide is passed through it.
  3. A blue solution which turns green in contact with iron.
  4. A change where a new substance is formed.
  5. A chemical reaction that we call burning.
  6. Reacts with baking soda to form bubbles.
  7. The slow chemical change that damages iron.
  8. A change in form, but not in identity.

14 Clues: A change that is permanent. • Direct change from solid to gas. • A change in form, but not in identity. • Reacts with baking soda to form bubbles. • A change where a new substance is formed. • A chemical reaction that we call burning. • The slow chemical change that damages iron. • Coating iron with zinc to prevent corrosion. • ...

Ecosystems and Population 2024-01-09

Ecosystems and Population crossword puzzle
Across
  1. A chemical element essential for the growth of living organisms.
  2. Depending on each other; organisms in an ecosystem rely on each other.
  3. Substances formed as a result of a chemical reaction.
  4. A process that changes one set of chemicals into another.
Down
  1. Relationships where both parties benefit.
  2. The variety of life in a particular habitat or ecosystem.
  3. A gas essential for the respiration of many organisms.
  4. Substances present at the beginning of a chemical reaction.
  5. An animal that is hunted and eaten by other animals.
  6. An animal that hunts and eats other animals.
  7. Related to water; living or growing in water.
  8. A gas that plants use in photosynthesis and animals produce during respiration.

12 Clues: Relationships where both parties benefit. • An animal that hunts and eats other animals. • Related to water; living or growing in water. • An animal that is hunted and eaten by other animals. • Substances formed as a result of a chemical reaction. • A gas essential for the respiration of many organisms. • The variety of life in a particular habitat or ecosystem. • ...

Stoichiometry Crossword 2022-11-29

Stoichiometry Crossword crossword puzzle
Across
  1. chemical reaction an equation where the number of atoms of each type in the reaction is the same on both the reactant and product sides
  2. relationship the numerical relationship between the quantities of reacting substances that corresponds to the laws of stoichiometry.
  3. formula the chemical formula of a compound that gives the simplest ratio of elements in a compound rather than the total number of atoms in the molecule
  4. mass the mass equivalent of Avogadro's number of atoms of an element mass per mole
  5. scientific unit that measures the mass of a substance (has a value of 6.023 x 10 )
  6. a compound that absorbs water molecules from its environment and includes them as part of its structure
  7. factors a ratio (or fraction) that represents the relationship between two different units and is always equal to 1
  8. unit the lowest whole number ratio of ions represented in an ionic compound
  9. substance substances that are made up of only one kind of particle and have a fixed or constant structure
Down
  1. reaction a process in which reactants react chemically and convert into products by chemical transformation
  2. number number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.023 × 10
  3. basic building block of chemistry; the smallest part of a substance that cannot be broken down chemically
  4. composition tells you by mass what percent of each element is present in a compound
  5. an atom or group of atoms in which the number of electrons is different from the number of protons
  6. uses the relationship between reactants and products in a chemical reaction to determine quantitative data
  7. formula a chemical formula that gives the total number of atoms of each element in each molecule of a substance

16 Clues: unit the lowest whole number ratio of ions represented in an ionic compound • composition tells you by mass what percent of each element is present in a compound • mass the mass equivalent of Avogadro's number of atoms of an element mass per mole • scientific unit that measures the mass of a substance (has a value of 6.023 x 10 ) • ...

Science 2022-06-21

Science crossword puzzle
Across
  1. a metal that give a violent reaction when mixed with acid
  2. a types of conductor that holds heat
  3. something used to make pots, wires ect.
  4. meaning metals can be pulled into a wire
  5. metals have a high ________.
  6. a table containing elements
Down
  1. elements are sorted into periods and _________ on a periodic table
  2. a chemical that can be mixed with metals
  3. acid is a type of _________.
  4. a type of conductor that can give high or low voltage
  5. a step by step way of doing something
  6. metals are mostly _________.
  7. a chemical ________.
  8. a metal always use to make electricity
  9. means metals are shiny

15 Clues: a chemical ________. • means metals are shiny • a table containing elements • acid is a type of _________. • metals are mostly _________. • metals have a high ________. • a types of conductor that holds heat • a step by step way of doing something • a metal always use to make electricity • something used to make pots, wires ect. • a chemical that can be mixed with metals • ...

Science 2022-06-21

Science crossword puzzle
Across
  1. a metal that give a violent reaction when mixed with acid
  2. a types of conductor that holds heat
  3. something used to make pots, wires ect.
  4. meaning metals can be pulled into a wire
  5. metals have a high ________.
  6. a table containing elements
Down
  1. elements are sorted into periods and _________ on a periodic table
  2. a chemical that can be mixed with metals
  3. acid is a type of _________.
  4. a type of conductor that can give high or low voltage
  5. a step by step way of doing something
  6. metals are mostly _________.
  7. a chemical ________.
  8. a metal always use to make electricity
  9. means metals are shiny

15 Clues: a chemical ________. • means metals are shiny • a table containing elements • acid is a type of _________. • metals are mostly _________. • metals have a high ________. • a types of conductor that holds heat • a step by step way of doing something • a metal always use to make electricity • something used to make pots, wires ect. • a chemical that can be mixed with metals • ...

NTI day 6 2020-03-25

NTI day 6 crossword puzzle
Across
  1. anything that has mass and takes up space
  2. a characteristic of a substance that can be observed without changing the substance into another substance
  3. a characteristic of a substance that describes its ability to change into other substances
  4. any change that alters the form or appearance of a substance but that does not make the substance into another substance
  5. a reaction in which energy is absorbed
  6. the substance you have at the beginning
  7. a short, easy way to show a chemical reaction, using symbols instead of words
Down
  1. when the reaction is complete, you have a new substance
  2. a solid that forms from solution during a chemical reaction
  3. a change in matter that produces one or more new substances is a chemical change
  4. a reaction that releases energy in the form of heat
  5. the study of matter and how matter changes

12 Clues: a reaction in which energy is absorbed • the substance you have at the beginning • anything that has mass and takes up space • the study of matter and how matter changes • a reaction that releases energy in the form of heat • when the reaction is complete, you have a new substance • a solid that forms from solution during a chemical reaction • ...

chemisrty 2022-10-03

chemisrty crossword puzzle
Across
  1. repeated or long term exposure that can cause sensitivity
  2. reaction that requires absorption of energy or heat from an external source for reaction to occur
  3. hydroxy acid, abbreviates AHAs; acids derived from plants (mostly fruit) that are often used to exfoliate skin
  4. ,unstable mixtures of undissolved particles in a liquid
  5. the smallest chemical components (often called particles )of an element; structures of the element that have the same propertied of the element
  6. in water,
  7. a contraction of surface active agents ; substances that allow oil and water to mix
  8. in- oil emulsion, abbreviated W/O emulsion; water droplets emulsified in oil
  9. -reduction,
  10. O/W emulsion; oil droplets emulsified in water
  11. ,liquids that are mutually soluble , meaning that they can be mixed together to form a stable solution
  12. agent ,a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
  13. an atom or a molecule that carries an electrical charge
Down
  1. capable of combining with or attracting water( water -loving)
  2. reaction that releases a significant amount of heat
  3. molecules ,also know as compounds ; a chemical combination of two or more atoms of different elements in definite fixed properties
  4. change, a change in a chemical composition or makeup of a substance
  5. reaction,
  6. know as redux ,a chemical reaction in which the oxidizing agent is reduced ( by losing oxygen) and the reducing agent is oxidized (by gaining oxygen)
  7. , an ion with a negative charge
  8. oxidation of a substance accompanied by the production of heat
  9. reaction,
  10. a substance that dissolves solutes and make a solution
  11. subatomic particles with negative charge
  12. a solution having a pH below seven
  13. having an affinity for an attraction to fat and oils ( oil - loving)

26 Clues: reaction, • in water, • reaction, • -reduction, • , an ion with a negative charge • a solution having a pH below seven • subatomic particles with negative charge • O/W emulsion; oil droplets emulsified in water • reaction that releases a significant amount of heat • ,unstable mixtures of undissolved particles in a liquid • a substance that dissolves solutes and make a solution • ...

Conservation of Mass 2022-10-19

Conservation of Mass crossword puzzle
Across
  1. anything that takes up space and has mass
  2. When a chemical reaction takes place and at least one new product is made, not reversible. This is a __________ change.
  3. A change in the physical properties of a substance, is reversible. This is a __________ change.
  4. does not have a fixed shape or volume
  5. when atoms form they form these.
  6. the amount of matter in an object or substance.
  7. substances result from a chemical reaction
Down
  1. the building blocks of matter
  2. a substance with a fixed shape and volume
  3. substances undergoing change in a chemical reaction
  4. The Law of __________ of Mass says that the total mass of the reactants will always equal the total mass of the products.
  5. have a fixed volume but not a fixed shape

12 Clues: the building blocks of matter • when atoms form they form these. • does not have a fixed shape or volume • a substance with a fixed shape and volume • anything that takes up space and has mass • have a fixed volume but not a fixed shape • substances result from a chemical reaction • the amount of matter in an object or substance. • ...

Chemistry Crossword! 2013-10-23

Chemistry Crossword! crossword puzzle
Across
  1. Which metal has the highest boiling point?(over 3400 degrees)
  2. What colour does Barium give in a flame test?
  3. An element named after the man who made the first periodic table
  4. The name of this chemical comes from the German for goblin (Kobald).
  5. metals Group one metals are also known as.........
  6. This element was discovered by Brand, whilst he was trying to make gold from urine.
  7. Reaction A reaction that produces heat
  8. Which chemical has 1 as its atomic number?
  9. Chloride Your common table salt is?
Down
  1. What liquid do ALL group one metals react with?
  2. variable The variable that you change during an experiment.
  3. Metal carbonate + Hydrochloric acid -> carbon dioxide + water +salt, this is an example of a ....... reaction
  4. What is the element with the symbol Pb?
  5. The hazard symbol put on a substance that will burn living tissue.
  6. Water is a chemical..........
  7. Decomposition Breakdown of element by using heat.
  8. proportionate When one value (in a graph) increases, the other value does aswell.
  9. What colour is the safety flame on a Bunsen Burner.

18 Clues: Water is a chemical.......... • Chloride Your common table salt is? • What is the element with the symbol Pb? • Reaction A reaction that produces heat • Which chemical has 1 as its atomic number? • What colour does Barium give in a flame test? • What liquid do ALL group one metals react with? • Decomposition Breakdown of element by using heat. • ...

Unit 2 Crossword Puzzle 2023-09-21

Unit 2 Crossword Puzzle crossword puzzle
Across
  1. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
  2. They include many natural oils, waxes, and steroids.
  3. Makes up your genetic code
  4. he sticking together of particles of the same substance.
  5. large molecules made by bonding a series of building blocks
  6. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
  7. form the basic structural unit of nucleic acids such as DNA.
  8. chemical bond that is formed by joining the carboxyl group of one amino acid to the amino group of another.
Down
  1. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  2. 4 across is an example of one
  3. Example of a protein
  4. Example of a carbohydrate
  5. the attraction of molecules of one kind for molecules of a different kind
  6. molecules that combine to form proteins
  7. Example of lipids
  8. substance with the ability to dissolve other substances to form a solution
  9. 7 across is an example of a
  10. a measure of how acidic/basic substances are

18 Clues: Example of lipids • Example of a protein • Example of a carbohydrate • Makes up your genetic code • 7 across is an example of a • 4 across is an example of one • molecules that combine to form proteins • a measure of how acidic/basic substances are • They include many natural oils, waxes, and steroids. • he sticking together of particles of the same substance. • ...

Foundational Chemistry 2021-05-03

Foundational Chemistry crossword puzzle
Across
  1. Electrical charge of the atom with an equal number of protons and electrons
  2. This poisonous gas is given the chemical symbol ‘Cl’
  3. The lightest element on the Periodic Table
  4. A substance made of only one type of atom
  5. The name of the ion formed when chlorine gains one electron
  6. Particles inside the nucleus of an atom that have no charge
  7. Name for the ‘ingredients’ of a chemical reaction
  8. Mg2+
  9. Name of the compound with the formula NaOH
  10. Name for the substances that are produced in a chemical reaction
  11. This number, found above an element on the Periodic Table, tells you the number of protons inside that atom
Down
  1. Positively charged particle in the nucleus of an atom
  2. This element has an electron arrangement of 2,8
  3. Negatively charged particle that surrounds the nucleus of an atom
  4. Number of atoms in a single H2SO4 molecule
  5. Number of electrons in a sodium atom
  6. Name of the compound with the formula CaSO4
  7. This element has an atomic number of 8
  8. Building block of all matter
  9. This element is given the chemical symbol ‘K’
  10. O2-
  11. The middle of an atom is called this
  12. The element has an electron arrangement of 2,8,3
  13. Made of two or more elements chemically combined
  14. The group number for an element with four electrons in its outer shell
  15. Used to show the direction of a chemical reaction when writing equations
  16. Table used to arrange all the known elements
  17. This element has an atomic number of 6

28 Clues: O2- • Mg2+ • Building block of all matter • Number of electrons in a sodium atom • The middle of an atom is called this • This element has an atomic number of 8 • This element has an atomic number of 6 • A substance made of only one type of atom • Number of atoms in a single H2SO4 molecule • The lightest element on the Periodic Table • Name of the compound with the formula NaOH • ...

Unit 1 and 2 Vocabulary 2024-09-28

Unit 1 and 2 Vocabulary crossword puzzle
Across
  1. The region around the nucleus where electrons are likely to be found
  2. energy The energy of moving particles in a substance, related to temperature
  3. The center part of an atom containing protons and neutrons
  4. The total heat content of a system
  5. Neutral subatomic particles that reside in the nucleus of an atom
  6. law A principle stating that the total heat change in a reaction is the same, regardless of the steps taken
  7. A pure substance consisting of only one type of atom
  8. The process of measurement heat changes in a chemical reaction
  9. transfer The movement of heat from one object or substance to another
  10. Positively charged subatomic particles located in the nucleus of an atom
  11. The umber of waves that pass a given point per unit of time
  12. The distance between successive peaks of a wave
Down
  1. A measurement of the disorder or randomness in a system; higher entropy means more disorder
  2. The study of how heat is involved in chemical reactions
  3. energy The minimum energy needed for a reaction to occur
  4. spectrum The range of all types of electromagnetic radiation
  5. A unit of energy used to measure heat
  6. Everything outside of the system being studied
  7. The smallest unit of chemical element
  8. A fundamental property of electrons that describe their intrinsic angular momentum
  9. The part of the universe being studied in a chemical reactions
  10. levels The fixed energies an electron can have in an atom
  11. A from of energy that can be transferred between objects
  12. A measurement of how hot or cold something is
  13. table A tabular arrangements of the chemical elements, organized by atomic number

25 Clues: The total heat content of a system • A unit of energy used to measure heat • The smallest unit of chemical element • A measurement of how hot or cold something is • Everything outside of the system being studied • The distance between successive peaks of a wave • A pure substance consisting of only one type of atom • ...

Sec 3 Chemistry Puzzle B 2024-10-18

Sec 3 Chemistry Puzzle B crossword puzzle
Across
  1. A mixture that has a uniform composition throughout.
  2. A mixture composed of different substances that remain distinct.
  3. A substance that undergoes a chemical change.
  4. Forces between molecules that influence physical properties.
  5. A process that uses electricity to break down compounds.
  6. The process of making sure the same number of atoms is on each side of an equation.
  7. A substance formed as a result of a chemical reaction.
  8. A substance that contains no water.
  9. A measure of a fluid's resistance to flow.
  10. A method for purifying solid compounds.
  11. The process of a solute dissolving in a solvent.
  12. The amount of solute in a given volume of solution.
  13. A process used to separate components of a mixture based on differences in boiling points.
  14. REACTION A process that transforms reactants into products.
Down
  1. The substance dissolved in a solution.
  2. A symbolic representation of a chemical reaction.
  3. A measure of concentration expressed as moles of solute per liter of solution.
  4. The substance that dissolves the solute.
  5. A mixture in which particles are dispersed throughout but not fully dissolved.
  6. A technique used to determine the concentration of a solution.
  7. A homogeneous mixture of two or more substances.
  8. Two or more atoms bonded together.
  9. A substance made of two or more different elements.
  10. The calculation of reactants and products in chemical reactions.
  11. The process of reducing the concentration of a solute in a solution.
  12. A solid that forms and settles out of a liquid mixture.
  13. The process of determining the composition of a substance.

27 Clues: Two or more atoms bonded together. • A substance that contains no water. • The substance dissolved in a solution. • A method for purifying solid compounds. • The substance that dissolves the solute. • A measure of a fluid's resistance to flow. • A substance that undergoes a chemical change. • A homogeneous mixture of two or more substances. • ...

Exothermic & Endothermic Reactions 2017-07-20

Exothermic & Endothermic Reactions crossword puzzle
Across
  1. Sign for H in an exothermic reaction
  2. The term used to define the average total kinetic energy of the atoms and molecules in a system
  3. Type of reaction where energy is gained because the energy of the products is greater than the energy of the reactants
  4. Name of scientist after whom the law is named whereby the enthalpy change accompanying a chemical change is independent of the route by which the chemical change occurs
  5. The type of motion contributing to the major source of kinetic energy in solids
  6. A type of motion contributing to the kinetic energy of atoms or molecules in gases and liquids but essentially absent in solids and undefined for atoms since they are spherically symmetric
Down
  1. Sign for H in an endothermic reaction
  2. Required to break bonds in the reactants for a chemical reaction to occur
  3. Type of reactions where substances are burnt in the presence of oxygen and release large amounts of energy
  4. A type of motion contributing substantially to the kinetic energy of atoms or molecules in gases but absent in solids
  5. Type of reaction where energy is released because the energy of the reactants is greater than the energy of the products
  6. Name of temperature scale used to measure temperature relative to absolute zero
  7. The term given for for the heat absorbed in a chemical reaction
  8. Name of temperature scale used to measure temperature relative to the freezing point of water being assigned as zero

14 Clues: Sign for H in an exothermic reaction • Sign for H in an endothermic reaction • The term given for for the heat absorbed in a chemical reaction • Required to break bonds in the reactants for a chemical reaction to occur • Name of temperature scale used to measure temperature relative to absolute zero • ...

Elephant's Toothpaste 2024-11-15

Elephant's Toothpaste crossword puzzle
Across
  1. The bubbly result of this chemical reaction, resembling what an elephant might need for cleaning!
  2. Added to trap gas and make the reaction visible.
  3. A biological alternative to chemical catalysts.
  4. A common oxidizer used in first aid and cleaning. Essential for this foamy reaction.
  5. The reaction type where a compound breaks down into simpler substances.
Down
  1. A substance that speeds up a chemical reaction without being consumed. Often potassium iodide or yeast.
  2. The gas released during the experiment, creating bubbles.
  3. One of the byproducts of breaking down hydrogen peroxide.
  4. A chemical catalyst commonly used in the faster version of the experiment.

9 Clues: A biological alternative to chemical catalysts. • Added to trap gas and make the reaction visible. • The gas released during the experiment, creating bubbles. • One of the byproducts of breaking down hydrogen peroxide. • The reaction type where a compound breaks down into simpler substances. • ...

words 2023-01-23

words crossword puzzle
Across
  1. groups of atoms
  2. a build that looks almost the same
  3. color smell and boiling point
  4. tiny things of matter
  5. an ending substance that is a chemical reaction
  6. to change somthing
  7. a starting substance is a chemical reaction
  8. letters and numbers showing up the number of atoms
  9. cause damage
Down
  1. something formed by groups of atoms linked together
  2. blow stuff up
  3. something added to plants to grow
  4. the size of stuff
  5. something gets really hot its at
  6. somthing made of atoms

15 Clues: cause damage • blow stuff up • groups of atoms • the size of stuff • to change somthing • tiny things of matter • somthing made of atoms • color smell and boiling point • something gets really hot its at • something added to plants to grow • a build that looks almost the same • a starting substance is a chemical reaction • an ending substance that is a chemical reaction • ...

Lucas' H20 Vocab Review 2023-02-24

Lucas' H20 Vocab Review crossword puzzle
Across
  1. negative charge revolves around the nucleus
  2. the end of a chemical reaction
  3. center of atom; full of protons and neutrons
  4. neutral charge;found in the nucleus
  5. a substance made from two or more different elements that have been chemically joined.
  6. makes up everything
  7. what atoms make water?
Down
  1. The smallest particle of a substance that has all of the physical and chemical properties of that substance.
  2. shows how many atoms are in a compound
  3. a force that holds atoms together
  4. Positive charge, found in nucleus
  5. What is the letter of the atom?
  6. the start of a chemical reaction
  7. oxygen gas
  8. hyrdogen gas

15 Clues: oxygen gas • hyrdogen gas • makes up everything • what atoms make water? • the end of a chemical reaction • What is the letter of the atom? • the start of a chemical reaction • a force that holds atoms together • Positive charge, found in nucleus • neutral charge;found in the nucleus • shows how many atoms are in a compound • negative charge revolves around the nucleus • ...

Biochemistry Vocab 2016-09-18

Biochemistry Vocab crossword puzzle
Across
  1. A type of protein that helps catalyze chemical reactions
  2. A molecule made of many monomers (subunits).
  3. An organic macromolecule used for energy. The monomer units are monosaccharides.
  4. These bonds hold amino acids/ polypeptides together.
  5. The reactant that enzymes work on during a chemical reaction
  6. A complex sugar made of many monosaccharides. An example is starch.
  7. A compound with a pH of less than 6.9
  8. Something that causes a reaction to occur
  9. Acid An organic macromolecule made of many nucleotides. Examples are DNA and RNA.
  10. This is a monomer of nucleic acids. These contain a phosphate group, a sugar, and a base.
  11. Energy The amount of energy needed to start a chemical reaction
  12. Fats and oils are examples, the monomer is usually glycerol with fatty acid chains.
Down
  1. A compound with a pH greater than 7.1
  2. A chemical test for proteins and polypeptides.
  3. This monomer is a simple sugar whose chemical structure (shape) is a ring. An example is glucose.
  4. The simplest/ most basic unit of the molecules that make up living things. These subunits can be bonded together to make up macromolecules.
  5. Term that describes compounds that have either Carbon or Hydrogen, or neither.
  6. A compound with a pH of 7
  7. Also called polypeptides, these are made of many amino acids held together by peptide bonds.
  8. A chemical test for simple sugars (monosaccharides).
  9. Acid Made of many nucleotides, this molecule carries genetic instructions.
  10. Bond A type of bond between two atoms, such as between carbon and hydrogen
  11. Term that describes compounds that have Carbon and Hydrogen
  12. A brown paper bag can be used to detect the presence of this macromolecule.
  13. A chemical test used to detect the presence of starch.
  14. Acid This is a monomer of proteins. Many of these are held together by peptide bonds. There are 20 very common ones.

26 Clues: A compound with a pH of 7 • A compound with a pH greater than 7.1 • A compound with a pH of less than 6.9 • Something that causes a reaction to occur • A molecule made of many monomers (subunits). • A chemical test for proteins and polypeptides. • A chemical test for simple sugars (monosaccharides). • These bonds hold amino acids/ polypeptides together. • ...

Photosynthesis 2.0 2021-05-31

Photosynthesis 2.0 crossword puzzle
Across
  1. where the chloroplasts are located (3 words in one)
  2. where water is taken in from
  3. the ______ of cellular respiration are glucose and oxygen
  4. where the light dependent reaction occurs
  5. a chemical reaction that happens in all living cells
  6. an organelle and structural layer that surrounds all plant cells
  7. the xylem transports major ______ to the entire plant
  8. sugar that is stored in the roots of the plant
  9. the process that plants use to make their own food
  10. this is where cellular respiration occurs in eukaryotes
  11. glucose is an example of a carbon-based m__________e
  12. also known as light energy and necessary for the process of photosynthesis
  13. the process that releases the energy from glucose to produce ATP
  14. a gas that plants take in for photosynthesis
  15. pigment that makes plants green
  16. light energy is converted into _____ energy by photosynthesis
Down
  1. organelle where photosynthesis takes place
  2. a tissue located in the stems of the plant
  3. a single layer of cells on the upper surface of the leaf
  4. an organism that makes its own food
  5. photosynthesis is a ________ reaction
  6. are responsible for the exchange of gases
  7. used by plants for their growth
  8. the gelatinous liquid that fills the inside of a cell
  9. the form of energy that cells can use
  10. where the light independent reaction occurs, a fluid outside the thylakoid
  11. alternative name for the light independent reaction or the dark reaction
  12. Cellular respiration is a _______ reaction
  13. gas that is released by plants during photosynthesis
  14. the ______ of photosynthesis are CO2 and water

30 Clues: where water is taken in from • used by plants for their growth • pigment that makes plants green • an organism that makes its own food • photosynthesis is a ________ reaction • the form of energy that cells can use • where the light dependent reaction occurs • are responsible for the exchange of gases • organelle where photosynthesis takes place • ...

Isaac 2022-03-08

Isaac crossword puzzle
Across
  1. a substance that enters into and alters the course of a chemical reaction
  2. a measure of the quantity of moles of a product formed in relation to the reactant consumed
  3. The mass of a substance
  4. the ratio between the amounts in moles of two compounds in a chemical reaction
  5. the smallest unit of matter that forms a chemical element
  6. the amount of a substance
Down
  1. the reactant that gets consumed first in a chemical reaction
  2. formula giving the proportions of the elements present in a compound
  3. 6.02x10^23
  4. the number placed in front of a chemical formula

10 Clues: 6.02x10^23 • The mass of a substance • the amount of a substance • the number placed in front of a chemical formula • the smallest unit of matter that forms a chemical element • the reactant that gets consumed first in a chemical reaction • formula giving the proportions of the elements present in a compound • ...

Types of Reactions 2024-05-06

Types of Reactions crossword puzzle
Across
  1. a type of decomposition reaction in which the reactant will break down just by the absorption of the photons
  2. a compound breaks down when heated.
  3. an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons
  4. a natural process that converts a refined metal into a more chemically stable oxide
  5. reaction in which a compound breaks down into two or more simpler substances.
  6. a chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt
  7. A displacement reaction occurs when a more reactive element displaces, or pushes out, a less reactive element from a compound that contains the less reactive element.
Down
  1. when an acid and a base react to form water and a salt
  2. reaction in which energy is released in the form of light or heat.
  3. Double displacement reactions are those in which two chemical substances react by exchanging ions to produce two new molecules
  4. aerial oxidation of unsaturated fat present in food gives it an unpleasant flavor and odor.
  5. type of chemical reaction that involves a transfer of electrons between two species.
  6. reaction in which two or more substances combine to form a single new substance.
  7. When electricity is passed through a molten compound which is ionic nature, then the ions of the compound separate into components decomposing the compound
  8. reactants absorb heat energy from the surroundings to form products.

15 Clues: a compound breaks down when heated. • when an acid and a base react to form water and a salt • reaction in which energy is released in the form of light or heat. • reactants absorb heat energy from the surroundings to form products. • reaction in which a compound breaks down into two or more simpler substances. • ...

Chemical Bonds & Reactions 2025-01-06

Chemical Bonds & Reactions crossword puzzle
Across
  1. a group of atoms covalently bonded together
  2. the bond between two nonmetal atoms
  3. the type of reaction where two substances are combined to make a new substance
  4. the building blocks of matter
  5. a reaction that absorbs heat
  6. the bond between two metal atoms
  7. the type of reaction where a compound breaks down into simpler substances
Down
  1. burning; a reaction with O2
  2. the most reactive group of metals
  3. a charged atom
  4. the most reactive group of nonmetals
  5. elements with properties in between metals and nonmetals
  6. the least reactive group of elements
  7. the bond between a metal atom and a nonmetal atom
  8. a reaction that releases heat
  9. a substance added to a chemical reaction to increase the reaction rate

16 Clues: a charged atom • burning; a reaction with O2 • a reaction that absorbs heat • the building blocks of matter • a reaction that releases heat • the bond between two metal atoms • the most reactive group of metals • the bond between two nonmetal atoms • the most reactive group of nonmetals • the least reactive group of elements • a group of atoms covalently bonded together • ...

Science-Rhys and Annalisa 2024-02-22

Science-Rhys and Annalisa crossword puzzle
Across
  1. hot things rise, cold things fall
  2. a substance that transfers energy
  3. energy of things actively in motion
  4. a change in appearance
  5. reaction that releases energy
  6. the measure of average kinetic energy
  7. energy cannot be created nor destroyed
  8. the transfer of thermal energy between objects
  9. speeds up reaction
  10. energy cannot be created nor destroyed
  11. when 2 molecules react and bond
  12. energy that comes from heat
  13. a change in the substance
  14. energy stored in something based on height
Down
  1. a chemical reaction that absorbs energy
  2. amount of heat energy required to raise the temp of a substance
  3. the minimum amount of energy needed to start a reaction
  4. everything has it
  5. biological substance that acts like a catalyst
  6. a substance or material that decreases rate of reaction
  7. pre reaction
  8. energy moves between 2 objects
  9. total energy of motion
  10. oxygen can enter and leave
  11. post reaction
  12. a substance that helps a substance resist ph change
  13. amount of energy stored in things
  14. emissions of energy
  15. oxygen cannot enter nor leave
  16. how fast a reaction is

30 Clues: pre reaction • post reaction • everything has it • speeds up reaction • emissions of energy • a change in appearance • total energy of motion • how fast a reaction is • a change in the substance • oxygen can enter and leave • energy that comes from heat • reaction that releases energy • oxygen cannot enter nor leave • energy moves between 2 objects • when 2 molecules react and bond • ...

Unit 3 Crossword 2017-03-26

Unit 3 Crossword crossword puzzle
Across
  1. The mass of exactly 1 mol of the chemical is known as its ________ ________.
  2. In 1 _____ of particles there are 6.022 times 10 to the 23rd power particles
  3. A type of a chemical reaction in which a single reactant forms 2 or more products.
Down
  1. Reactant that lost electrons in a chemical reaction
  2. Chemical used up during the reaction
  3. A type of a chemical reaction in which one of the reactants is molecular oxygen
  4. We balance a chemical equation by using the smallest, whole number
  5. Reaction that absorbs energy from the surroundings

8 Clues: Chemical used up during the reaction • Reaction that absorbs energy from the surroundings • Reactant that lost electrons in a chemical reaction • We balance a chemical equation by using the smallest, whole number • The mass of exactly 1 mol of the chemical is known as its ________ ________. • ...

Biological Molecules (section 2.3) 2023-10-05

Biological Molecules (section 2.3) crossword puzzle
Across
  1. unicellular organism that lacks a nucleus
  2. process of maintaining stable internal environment within a cell/organism
  3. all the chemical reactions within an organism that build or break down substances
  4. in classification, a group of similar genera
  5. in classification, a group of closely related families
  6. signal to which an organism responds
  7. compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  8. a reaction that absorbs energy (absorbs heat)
  9. largest and most inclusive group in classification
  10. elements or compounds that enter into a chemical reaction
  11. subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
  12. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  13. simple sugar molecule
  14. reactant of an enzyme-catalyzed reaction
  15. in classification, a group of closely related classes
  16. molecules composed of many monomers; makes up macromolecules
  17. a complex cell that has a nucleus
  18. substance formed as a result of a chemical reaction
  19. biological catalysts
  20. macromolecule made up of amino acids
Down
  1. substance that speeds up the rate of a chemical reaction
  2. A name used by scientists, especially the taxonomic name of an organism that consists of the genus and specie
  3. a reaction that releases energy (gives off heat)
  4. material that organisms inherit from their parents
  5. refers to the colloquial name of a taxon or species. It is the name known to the general public or is based on any language
  6. group of closely related species; the first part of the scientific name in binomial nomenclature
  7. a large organic molecule made up of many atoms (like proteins)
  8. group of similar organisms that can breed and produce fertile offspring
  9. small chemical unit that makes up a polymer
  10. compound with an amino group on one end and a carboxyl group on the other end
  11. a trait that an organism has that allows for it to survive and reproduce at a greater rate
  12. a larger, more inclusive taxonomic category than a kingdom
  13. macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  14. reproduction in which a single parent produces offspring, identical to the parent and each other
  15. energy that is needed to get a reaction started
  16. classification system in which each species is assigned a two-part scientific name
  17. process that changes, or transforms, one set of chemicals into another set of chemicals
  18. reproduction in which two parents produce unique offspring, different from the parents and each other
  19. in classification, a group of closely related orders
  20. a complex carbohydrate made up of many monosaccharides

40 Clues: biological catalysts • simple sugar molecule • a complex cell that has a nucleus • signal to which an organism responds • macromolecule made up of amino acids • reactant of an enzyme-catalyzed reaction • unicellular organism that lacks a nucleus • small chemical unit that makes up a polymer • in classification, a group of similar genera • ...

unit 2 vocab 2023-10-05

unit 2 vocab crossword puzzle
Across
  1. simple sugar molecule
  2. all the chemical reactions within an organism that build or break down substances
  3. a complex carbohydrate made up of many monosaccharides
  4. in classification, a group of closely related families
  5. group of closely related species; the first part of the scientific name in binomial nomenclature
  6. elements or compounds that enter into a chemical reaction
  7. subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
  8. unicellular organism that lacks a nucleus
  9. reactant of an enzyme-catalyzed reaction
  10. in classification, a group of closely related classes
  11. genetic material that organisms inherit from their parents
  12. process that changes, or transforms, one set of chemicals into another set of chemicals
  13. in classification, a group of similar genera
  14. a larger, more inclusive taxonomic category than a kingdom
  15. makes up macromolecules
  16. a complex cell that has a nucleus
  17. largest and most inclusive group in classification
  18. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  19. name– refers to the colloquial name of a taxon or species. It is the name known to the general public or is based on any language
  20. a large organic molecule made up of many atoms
  21. signal to which an organism responds
  22. energy that is needed to get a reaction started
  23. macromolecule made up of amino acids
Down
  1. process of maintaining stable internal environment within a cell/organism
  2. compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  3. group of similar organisms that can breed and produce fertile offspring
  4. reproduction in which a single parent produces offspring, identical to the parent and each other
  5. a trait that an organism has that allows for it to survive and reproduce at a greater rate
  6. substance that speeds up the rate of a chemical reaction
  7. a reaction that releases energy (gives off heat)
  8. compound with an amino group on one end and a carboxyl group on the other end
  9. a reaction that absorbs energy (absorbs heat)
  10. classification system in which each species is assigned a two-part scientific name
  11. biological catalysts
  12. in classification, a group of closely related orders
  13. macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  14. reproduction in which two parents produce unique offspring, different from the parents and each other
  15. formed as a result of a chemical reaction
  16. A name used by scientists, especially the taxonomic name of an organism that consists of the genus and specie
  17. small chemical unit that makes up a polymer

40 Clues: biological catalysts • simple sugar molecule • makes up macromolecules • a complex cell that has a nucleus • signal to which an organism responds • macromolecule made up of amino acids • reactant of an enzyme-catalyzed reaction • unicellular organism that lacks a nucleus • formed as a result of a chemical reaction • small chemical unit that makes up a polymer • ...

Bio Unit 2 test 2024-10-04

Bio Unit 2 test crossword puzzle
Across
  1. subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
  2. a complex cell that has a nucleus
  3. a reaction that absorbs energy (absorbs heat)
  4. molecules composed of many monomers; makes up macromolecules
  5. group of similar organisms that can breed and produce fertile offspring
  6. refers to the colloquial name of a taxon or species. It is the name known to the general public or is based on any language
  7. energy that is needed to get a reaction started
  8. all the chemical reactions within an organism that build or break down substances
  9. macromolecule made up of amino acids
  10. small chemical unit that makes up a polymer
  11. a trait that an organism has that allows for it to survive and reproduce at a greater rate
  12. process that changes, or transforms, one set of chemicals into another set of chemicals
  13. macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  14. a larger, more inclusive taxonomic category than a kingdom
  15. reactant of an enzyme-catalyzed reaction
  16. a complex carbohydrate made up of many monosaccharides
  17. genetic material that organisms inherit from their parents
  18. reproduction in which a single parent produces offspring, identical to the parent and each other
Down
  1. a large organic molecule made up of many atoms (like proteins)
  2. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  3. reproduction in which two parents produce unique offspring, different from the parents and each other
  4. largest and most inclusive group in classification
  5. a reaction that releases energy (gives off heat)
  6. compound with an amino group on one end and a carboxyl group on the other end
  7. elements or compounds that enter into a chemical reaction
  8. in classification, a group of closely related classes
  9. substance that speeds up the rate of a chemical reaction
  10. biological catalysts
  11. in classification, a group of closely related orders
  12. A name used by scientists, especially the taxonomic name of an organism that consists of the genus and specie
  13. in classification, a group of closely related families
  14. classification system in which each species is assigned a two-part scientific name
  15. simple sugar molecule
  16. substance formed as a result of a chemical reaction
  17. compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  18. process of maintaining stable internal environment within a cell/organism
  19. group of closely related species; the first part of the scientific name in binomial nomenclature
  20. unicellular organism that lacks a nucleus
  21. in classification, a group of similar genera
  22. signal to which an organism responds

40 Clues: biological catalysts • simple sugar molecule • a complex cell that has a nucleus • macromolecule made up of amino acids • signal to which an organism responds • reactant of an enzyme-catalyzed reaction • unicellular organism that lacks a nucleus • small chemical unit that makes up a polymer • in classification, a group of similar genera • ...

Ethan Halpin Mr.B 2017-10-13

Ethan Halpin Mr.B crossword puzzle
Across
  1. chemical reaction which gains energy
  2. a polyatomic ion made by adding a proton
  3. the amount of energy required to pull two bonded atoms apart
Down
  1. a polyatomic ion made by removing a proton
  2. the process by which reactants loses or gains electrons
  3. sometimes called Akaline
  4. chemical reaction which releases energy
  5. a reaction between an acid and a base
  6. The new materials formed in a chemical reaction

9 Clues: sometimes called Akaline • chemical reaction which gains energy • a reaction between an acid and a base • chemical reaction which releases energy • a polyatomic ion made by adding a proton • a polyatomic ion made by removing a proton • The new materials formed in a chemical reaction • the process by which reactants loses or gains electrons • ...

Balancing of Chemical Equations Crossword Puzzle 2023-10-10

Balancing of Chemical Equations Crossword Puzzle crossword puzzle
Across
  1. Process involving the change/conversion of a substance or substances.
  2. States that matter cannot be created nor destroyed. States that matter only changes form.
  3. A chemical equation when the number of each different atom is NOT equal on both sides of the equation.
  4. What is present before a chemical reaction takes place.
  5. What forms as a result of a chemical reaction.
Down
  1. Multiplies atoms. Used to balance chemical equation and appears as a whole number.
  2. A chemical equation when the number of each different atom is equal on both sides of the equation.
  3. Equation Used to represent chemical reactions, contains products, reactants, and an arrow.
  4. Extremely small particles of matter made up of protons, neutrons and electrons. Combines to form elements.
  5. Represents a chemical reaction in a chemical equation.

10 Clues: What forms as a result of a chemical reaction. • Represents a chemical reaction in a chemical equation. • What is present before a chemical reaction takes place. • Process involving the change/conversion of a substance or substances. • Multiplies atoms. Used to balance chemical equation and appears as a whole number. • ...

Types Of Chemical Reactions 2021-12-16

Types Of Chemical Reactions crossword puzzle
Across
  1. a representation of a chemical reaction using symbols of the elements to indicate the amount of substance
  2. a substance that takes part in and undergoes change during a reaction
  3. is a processes in which chemical species break up into simpler parts
  4. a type of chemical reaction where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
  5. a reaction in which one element is substituted for another element in a compound
Down
  1. a type of element ordering system
  2. a reaction in which two reactants combine to form one product.
  3. a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
  4. a substance obtained from another substance through chemical change.

9 Clues: a type of element ordering system • a reaction in which two reactants combine to form one product. • a substance obtained from another substance through chemical change. • is a processes in which chemical species break up into simpler parts • a substance that takes part in and undergoes change during a reaction • ...

Chemistry Crossword By Bella Weber 9C 2018-11-13

Chemistry Crossword By Bella Weber 9C crossword puzzle
Across
  1. Mass of one atom of an element calculated from the total number of protons, neutrons and electron of that atom
  2. A cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  3. A pure substance that cannot be broken down into other substances, it is made up of only one type of atom
  4. Description of how a substance interacts with other substances, such as acids; It is only observable when a chemical change occurs
  5. Change of state from a liquid to a gas
  6. A chemical reaction that releases energy
  7. A pure substance formed when non-metals combine
  8. Change of state from a solid to a gas or from a gas to a solid
  9. Property that describe the physical appearance and composition of a substance
  10. Change of state from a solid to a liquid
  11. Change that results when two or more substances react to create a different substance or substances, the new substances have to be completely different properties from the original ones
  12. Number of protons in the nucleus of one atom of an element
  13. A substance only made up of one kind of matter,which has a unique set of properties
  14. A combination of pure substances that don't always combine chemically and are not always in the same ratio
Down
  1. Mixture in which different substances that make up the mixture are visible
  2. Chemical reaction that absorbs energy
  3. Change of state from a gas to a solid
  4. A mixture of two or more pure substances that looks like one substance
  5. Change of state from a gas to a liquid
  6. Anything that has mass and occupies space
  7. Change of state from a liquid to a solid
  8. A change in the appearance or state of a substance that does not change the composition
  9. A pure substance formed when at least one metal and one non-metal combine
  10. A table in which the element are organized by their physical and chemical properties
  11. A cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
  12. A chemical combination of two or more elements in a specific ratio

26 Clues: Chemical reaction that absorbs energy • Change of state from a gas to a solid • Change of state from a gas to a liquid • Change of state from a liquid to a gas • Change of state from a liquid to a solid • A chemical reaction that releases energy • Change of state from a solid to a liquid • Anything that has mass and occupies space • ...

Chemical Reactions Vocabulary Review 2024-02-14

Chemical Reactions Vocabulary Review crossword puzzle
Across
  1. Something that can be observed about a substance
  2. The starting substance from a chemical reaction
  3. The relative size of things
  4. An object, diagram, or computer program to help us understand something by making it simpler to understand
  5. To change the order or position of something
  6. _______ point - Temperature at which a liquid of a substance will turn into a gas
Down
  1. A group of atoms arranged in a particular way
  2. A chemical added to soil to help plants grow
  3. The ending substance(s) of a chemical reaction
  4. A chemical process where atoms rearrange to form new substances
  5. Tiny particles that all matter is made of

11 Clues: The relative size of things • Tiny particles that all matter is made of • A chemical added to soil to help plants grow • To change the order or position of something • A group of atoms arranged in a particular way • The ending substance(s) of a chemical reaction • The starting substance from a chemical reaction • Something that can be observed about a substance • ...

Thermochemistry Crossword 2014-04-15

Thermochemistry Crossword crossword puzzle
Across
  1. the surroundings
  2. Reaction energy released by reactants
  3. surroundings as a result of temperature
  4. with the surroundings
  5. Reaction energy absorbed by products
  6. A system where energy and matter can be exchanged
  7. The part of the universe we chose to study
Down
  1. Energy that is transferred between a system and
  2. A physical occurrence (usually involving
  3. The study of energy in chemical reactions
  4. The potential energy change of a system during a chemical change(reaction)
  5. The ability to do work
  6. A system where energy but not matter can be

13 Clues: the surroundings • with the surroundings • The ability to do work • Reaction energy absorbed by products • Reaction energy released by reactants • surroundings as a result of temperature • A physical occurrence (usually involving • The study of energy in chemical reactions • The part of the universe we chose to study • A system where energy but not matter can be • ...

Unit #6: Writing Chemical Reactions 2021-05-04

Unit #6: Writing Chemical Reactions crossword puzzle
Across
  1. The breakdown of carbohydrates into simple sugars would be a [blank] change
  2. When writing chemical equations, the number of atoms for each element must be equal on both sides of the arrow because of the
  3. What is the ionic substance produced in the single replacement reaction of Ag + KNO3
  4. True of false: coefficients can be placed in the middle of a compound
  5. In a combustion reaction, [blank] and water are produced
Down
  1. Elements by themselves will always have
  2. What type of reaction is KBr + AgNO3 → KNO3 + AgBr
  3. If strontium reacts with oxygen gas, then this type of reaction is known as
  4. This is a solid, cloudy substance that forms in a chemical reaction
  5. Reactions, in general, always need a
  6. All salts of OH are [blank], excluding a few exceptions
  7. In the formula 6(K2O ⋅ 4H2O) how many oxygen atoms are there

12 Clues: Reactions, in general, always need a • Elements by themselves will always have • What type of reaction is KBr + AgNO3 → KNO3 + AgBr • All salts of OH are [blank], excluding a few exceptions • In a combustion reaction, [blank] and water are produced • In the formula 6(K2O ⋅ 4H2O) how many oxygen atoms are there • ...

Phases of Matter and Gas Laws Crossword 2024-05-02

Phases of Matter and Gas Laws Crossword crossword puzzle
Across
  1. When P is constant, volume and temperature increases
  2. When V is constant, pressure and temperature increases
  3. Chemical reaction that absorbs energy
  4. Gas to solid
  5. Liquid to gas
  6. Chemical reaction that releases energy
  7. Has a definite shape and volume
  8. Solid to gas
Down
  1. Liquid to solid
  2. An electricity charged gas
  3. Has a indefinite shape and volume
  4. Gas to liquid
  5. Has a indefinite shape and definite volume
  6. When T is constant, pressure increases and volume decreases
  7. Solid to liquid

15 Clues: Gas to solid • Solid to gas • Gas to liquid • Liquid to gas • Liquid to solid • Solid to liquid • An electricity charged gas • Has a definite shape and volume • Has a indefinite shape and volume • Chemical reaction that absorbs energy • Chemical reaction that releases energy • Has a indefinite shape and definite volume • When P is constant, volume and temperature increases • ...

words 2023-01-23

words crossword puzzle
Across
  1. groups of atoms
  2. a build that looks almost the same
  3. color smell and boiling point
  4. tiny things of matter
  5. an ending substance that is a chemical reaction
  6. to change somthing
  7. a starting substance is a chemical reaction
  8. letters and numbers showing up the number of atoms
  9. cause damage
Down
  1. something formed by groups of atoms linked together
  2. blow stuff up
  3. something added to plants to grow
  4. the size of stuff
  5. something gets really hot its at
  6. somthing made of atoms

15 Clues: cause damage • blow stuff up • groups of atoms • the size of stuff • to change somthing • tiny things of matter • somthing made of atoms • color smell and boiling point • something gets really hot its at • something added to plants to grow • a build that looks almost the same • a starting substance is a chemical reaction • an ending substance that is a chemical reaction • ...

Science Crossword 2018-06-07

Science Crossword crossword puzzle
Across
  1. Two or more forms of the same element with different numbers of neutrons in the nucleus
  2. Absorbed from sunlight
  3. Iron oxide
  4. Combustion that has enough oxygen
  5. Combustion with not enough oxygen
  6. Contains chlorophyll
  7. A carbon trap
  8. Speeds up reactions
Down
  1. reaction A reaction that takes heat from surroundings, making it colder
  2. A reaction where the reactant has more heat than the product
  3. The outcome of a chemical reaction
  4. A substance that changes in a reaction
  5. Gradual destruction of a metal
  6. Makes plants green

14 Clues: Iron oxide • A carbon trap • Makes plants green • Speeds up reactions • Contains chlorophyll • Absorbed from sunlight • Gradual destruction of a metal • Combustion that has enough oxygen • Combustion with not enough oxygen • The outcome of a chemical reaction • A substance that changes in a reaction • A reaction where the reactant has more heat than the product • ...

chem crossword 2025-06-16

chem crossword crossword puzzle
Across
  1. substances that undergo chemical change
  2. Symbolic representation of a chemical reaction
  3. A reaction where two or more reactants combine to form a single product
  4. A reaction in which one element replaces another in a compound
  5. The type of reaction in which one compound breaks down into simpler substances
Down
  1. The reddish-brown coating formed on iron
  2. A reaction in which an insoluble substance forms as a product
  3. A reaction in which heat is released
  4. A reaction in which heat is absorbed
  5. The type of reaction where an acid and a base neutralize each other to form salt and water

10 Clues: A reaction in which heat is released • A reaction in which heat is absorbed • substances that undergo chemical change • The reddish-brown coating formed on iron • Symbolic representation of a chemical reaction • A reaction in which an insoluble substance forms as a product • A reaction in which one element replaces another in a compound • ...

Chemical Reactions 2024-04-16

Chemical Reactions crossword puzzle
Across
  1. Chemical ___ shows what is found in substances.
  2. Equation for dinitrogen monoxide
  3. The starting materials in a chemical reaction.
  4. A solid substance that forms in a solution.
  5. Equation for carbon dioxide
  6. Equation for sodium chloride
Down
  1. Substances that form during reactions.
  2. A gas given off when water boils.
  3. Chemical ___ occurs when substances break apart.
  4. Chemical ___ uses symbols and formulas.

10 Clues: Equation for carbon dioxide • Equation for sodium chloride • Equation for dinitrogen monoxide • A gas given off when water boils. • Substances that form during reactions. • Chemical ___ uses symbols and formulas. • A solid substance that forms in a solution. • The starting materials in a chemical reaction. • Chemical ___ shows what is found in substances. • ...

Chemistry 2021-01-25

Chemistry crossword puzzle
Across
  1. temperature at which a substance becomes a liquid
  2. a type of change in which the form of matter is altered but one substance is not transformed into another
  3. property of a substance defining how easily it ignites and burns
  4. A solid substance that forms from a chemical reaction that takes place in a liquid solution
  5. chemical reaction in which thermal energy is absorbed
  6. Combining substances so that new substances are formed that are not separated by normal chemical means
  7. a chemical substance that produces hydroxide ions in solution and tastes bitter
  8. property measurable characteristic of matter not involving interactions with other substances
  9. the characteristic smell of a substance
  10. The readiness of a substance to produce hydrogen ions
  11. the characteristic of being able to attract because of an electrical force
  12. the ability to produce electricity
  13. measure of acidity or basicity of a substance
  14. measure of the amount of matter in an object
  15. chemical substance that produces hydrogen ions in solution and tastes sour
  16. the ability to be hammered or pressed down
Down
  1. chemical reaction in which thermal energy is released
  2. the readiness of a substance to produce hydroxide ions
  3. temperature at which a liquid substance becomes a gas
  4. amount of space an object takes up
  5. the ability to rust do to oxygen
  6. the characteristic of a slow moving sticky substance
  7. Property of a substance relating to how easily it reacts with other substances.
  8. Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base
  9. the external features of a substance
  10. property characteristic of a substance that describes its potential to change when interacting with other substances
  11. The amount of matter in a defined volume
  12. process where one or more substances are altered into a new and different substance
  13. the ability to be drawn out into thin wire

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

Vocabulary Week of November 26, 2012 2012-11-29

Vocabulary Week of November 26, 2012 crossword puzzle
Across
  1. matter cannot be created nor destroyed
  2. an educated guess based on reason and prior knowledge
  3. cannot be undone
  4. the metric system, used world-wide
  5. can be undone
  6. the outcome of a chemical reaction
Down
  1. the things need to start a chemical reaction
  2. what you think may happen
  3. the process of learning about science
  4. way to learn about science
  5. makes up the entire universe
  6. expanding and fast moving
  7. keeps it original shape
  8. the study of the natural world
  9. fluid and flowing
  10. information gathered during an experiment

16 Clues: can be undone • cannot be undone • fluid and flowing • keeps it original shape • what you think may happen • expanding and fast moving • way to learn about science • makes up the entire universe • the study of the natural world • the metric system, used world-wide • the outcome of a chemical reaction • the process of learning about science • matter cannot be created nor destroyed • ...

STEM cruciverba bov prev ant 2024-02-22

STEM cruciverba bov prev ant crossword puzzle
Across
  1. an effect that mealts materials
  2. a type of heat resistant glass
  3. the cause of greenhouse effect
  4. something dangerous if inhaled
  5. a glass contaioner
  6. risk of combustion
  7. your impact on the environment
Down
  1. for measuring the N
  2. you use this to pick dusts/powers
  3. the result of a chemical reaction
  4. for measuring the heat of something
  5. something that produces a chemical reaction
  6. a cause of the greenhouse effect
  7. for measurng the mass
  8. liquid essential for life
  9. you use this to pour liquids

16 Clues: a glass contaioner • risk of combustion • for measuring the N • for measurng the mass • liquid essential for life • you use this to pour liquids • a type of heat resistant glass • the cause of greenhouse effect • something dangerous if inhaled • your impact on the environment • an effect that mealts materials • a cause of the greenhouse effect • you use this to pick dusts/powers • ...

Kelp forest vocab 2023-11-06

Kelp forest vocab crossword puzzle
Across
  1. a single celled organism that can only be seen with a microscope
  2. the process of changing from one form to another
  3. a chemical change that changes substances into other substances
  4. a substance that provides nourishment
  5. a chemical reaction that produces sugar and oxegen
  6. a dramatic change in apperance
  7. a simple sugar produced by photosynthesis
Down
  1. a single celled organism that lives in water
  2. a multicellular organism that makes its own food through photo synthesis
  3. substanses that are needed for a chemical reaction
  4. substances formed as a result of chemical reactions
  5. a combanation of two or more atoms
  6. the smallest unit of an element
  7. a pure substance that can't be broken down

14 Clues: a dramatic change in apperance • the smallest unit of an element • a combanation of two or more atoms • a substance that provides nourishment • a simple sugar produced by photosynthesis • a pure substance that can't be broken down • a single celled organism that lives in water • the process of changing from one form to another • ...

Types Of Chemical Reactions 2024-05-06

Types Of Chemical Reactions crossword puzzle
Across
  1. used as an antioxidant for foods.
  2. represents the reactants and their physical states symbolically.
  3. an element displaces another element from its compound
  4. two diffrent group of atoms are exchanged
  5. used for whitewashing
  6. lustrous,malleable,ductile and good conductors of heat
  7. heat energy is given out during a chemical reaction
  8. two or more substances react to form a new single substance.
  9. can be classified as metals and non metals.
Down
  1. gain of hydrogen or loss of oxygen
  2. gain of oxygen or loss of hydrogen
  3. used for black and white photography
  4. opposite to combination reactions
  5. heat energy is absorbed during a chemical reaction
  6. this reaction produces insoluble salts.
  7. causes damage to car bodies,bridges,iron nail etc.

16 Clues: used for whitewashing • used as an antioxidant for foods. • opposite to combination reactions • gain of hydrogen or loss of oxygen • gain of oxygen or loss of hydrogen • used for black and white photography • this reaction produces insoluble salts. • two diffrent group of atoms are exchanged • can be classified as metals and non metals. • ...

Unit 3 : Energy Flow 2023-05-19

Unit 3 : Energy Flow crossword puzzle
Across
  1. Models that show how energy flows through an ecosystem
  2. Glucose + Oxygen = 6 Carbon Dioxide + 6 Water (+ energy)
  3. Carries/stores energy for cell functions
  4. When the enzyme's active site gets deformed and loses specific shape
  5. Eat both vegetation and meat
  6. A protein that speeds up a chemical reaction by lowering the activation energy
Down
  1. Eat dead materials
  2. Substances that are made by a chemical reaction
  3. Substances that are changed during a reaction
  4. Ex: Animals, fungus
  5. Ex: Plants, algae, some bateria
  6. Eat meat
  7. Only fits one substrate (reactant)
  8. 6 Carbon Dioxide + 6 Water = Glucose + Oxygen
  9. Eat vegetation
  10. As energy flows from one organism to another, it is used for metabolism and/or converted to heat

16 Clues: Eat meat • Eat vegetation • Eat dead materials • Ex: Animals, fungus • Eat both vegetation and meat • Ex: Plants, algae, some bateria • Only fits one substrate (reactant) • Carries/stores energy for cell functions • Substances that are changed during a reaction • 6 Carbon Dioxide + 6 Water = Glucose + Oxygen • Substances that are made by a chemical reaction • ...

Chemistry crossword 2017-11-07

Chemistry crossword crossword puzzle
Across
  1. combination of pure substances; unlike acompound, the components of a mixture do not combine chemically and are not always in the same ratio
  2. vertical column of elements in the periodic table; of elements in a family all have similar chemical properties; also called a family
  3. positively charged centre of an atom contains protons and neutrons
  4. change from liquid to soild
  5. an experiment in which one or more products of a chemical reaction can escape
  6. elements and compounds that organisms need for living, growing, and reproducing
  7. compound made up of units calledamino acids; protein molecules contain atoms ofnitrogen, hydrogen, oxygen, and carbon
  8. substance that helps a chemical reaction to proceed
  9. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  10. group 18 elements in the periodic table;the most stable and unreactive elements
Down
  1. amount of mass in a given voilume of a substance
  2. that describes a particularsubstance (e.g., colour, lustre, melting point,crystal shape, solubility, density)
  3. atom that has become electrically charged because it has lost or gained electrons; a positiveion is an atom that has lost one or more electrons;a negative ion is an atom that has gained one ormore electrons
  4. new substance produced in a chemical reactants between reactents
  5. catalyst involved in a chemical reaction in living things
  6. substance that reacts with another substance or substances in a chemical reaction to create new substances with different propertier
  7. homogeneous mixture; mixture of two or more pure substances that looks like one substance
  8. mass of a substance that can dissolve in a given amount of solvent to form a saturated solution at a given temperature
  9. positively charged particle in the nucleus of an atom
  10. substance made of only one kind of matter, which has a unique set of properties
  11. group 17 elements in the periodic table;the most reactive non-metals
  12. number of protons in the nucleus of one atoms
  13. (SO2(g))forms when sulfur combines swith oxygen in the air; major air pollutant that forms both smog and acid rain; major source:industrial processes
  14. chemistry) vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a group
  15. group of atoms joined by covalent bond

25 Clues: change from liquid to soild • group of atoms joined by covalent bond • number of protons in the nucleus of one atoms • amount of mass in a given voilume of a substance • substance that helps a chemical reaction to proceed • positively charged particle in the nucleus of an atom • catalyst involved in a chemical reaction in living things • ...

Vocabulary 2012-11-29

Vocabulary crossword puzzle
Across
  1. what you think may happen
  2. the study of the natural world
  3. the outcome of a chemical reaction
  4. cannot be undone
  5. matter cannot be created nor destroyed
  6. can be undone
  7. an educated guess based on reason and prior knowledge
Down
  1. way to learn about science
  2. the metric system, used world-wide
  3. the things need to start a chemical reaction
  4. the process of learning about science
  5. information gathered during an experiment
  6. makes up the entire universe
  7. expanding and fast moving
  8. keeps it original shape
  9. fluid and flowing

16 Clues: can be undone • cannot be undone • fluid and flowing • keeps it original shape • what you think may happen • expanding and fast moving • way to learn about science • makes up the entire universe • the study of the natural world • the metric system, used world-wide • the outcome of a chemical reaction • the process of learning about science • matter cannot be created nor destroyed • ...

ch 6 2022-06-20

ch 6 crossword puzzle
Across
  1. reaction and pathways where complex molecules break down into simpler ones.
  2. study of energy and energy transfer involving physical matter
  3. chemical reactions that require energy input
  4. all the chemical reactions that take place inside cells
  5. chemical reactions that release energy
  6. free energy is usable energy or energy available to do work
  7. the energy of motion
  8. reactions & pathways that require an energy input to synthesize complex from simpler ones.
  9. adenosine triphosphate.
Down
  1. potential energy that is released when that bond was broken
  2. stored energy has potential to do work
  3. study of energy flowing through living systems
  4. energy is used to drive another reaction.
  5. randomness or disorder within a system

14 Clues: the energy of motion • adenosine triphosphate. • stored energy has potential to do work • chemical reactions that release energy • randomness or disorder within a system • energy is used to drive another reaction. • chemical reactions that require energy input • study of energy flowing through living systems • all the chemical reactions that take place inside cells • ...

Chemistry Vocab Test 1 2022-02-22

Chemistry Vocab Test 1 crossword puzzle
Across
  1. A number in front of a chemical formula that shows how many molecules or atoms are present
  2. the area surrounding the nucleus of an atom; where the electrons are found
  3. the mass of an atom, approximately equal to the number of protons and neutrons in the atom
  4. a group of atoms bonded together forming the smallest fundamental unit of a pure substance
  5. A substance produced in a chemical reaction
  6. A positively charged particle found the nucleus and makes up half of the mass of an atom.
  7. A neutrally charged particle found the nucleus and makes up half of the mass of an atom.
  8. the basic unit of an element and makes up everything
  9. A combination of symbols that represent the elements in a compound
Down
  1. A chemical substance that is present at the start of a chemical reaction
  2. A negatively charged particle found the electron cloud and has very little mass
  3. the number of protons in the nucleus of a single atom
  4. The electrons in the outermost energy level of an atom that influence the reactivity of the element
  5. The tiny, very dense, positively charged region in the center of an atom; made up of protons and neutrons
  6. A pure substance made of only one kind of atom and cannot be broken down
  7. A substance made up of atoms of two or more different elements joined by chemical bonds
  8. A number written to the bottom right of a chemical symbol that shows how many atoms of that element are in a compound.
  9. The rows in a Periodic Table that classify the elements by the number of electron shells/energy levels
  10. Chemical formulas and symbols written to represent a reaction
  11. The columns on a Periodic Table that arrange the elements by the number of valence electrons in the outermost shell.

20 Clues: A substance produced in a chemical reaction • the basic unit of an element and makes up everything • the number of protons in the nucleus of a single atom • Chemical formulas and symbols written to represent a reaction • A combination of symbols that represent the elements in a compound • A chemical substance that is present at the start of a chemical reaction • ...

CHEM1203 Chapter 6-8 Terms 2025-11-19

CHEM1203 Chapter 6-8 Terms crossword puzzle
Across
  1. movement down a concentration gradient
  2. thermodynamic spontaneous calculation
  3. water solution
  4. more than one acidic proton
  5. concentration of solutions
  6. accepts proton
  7. heat
  8. reactions that have lower energy in product than reactants
  9. bronsted-lowry pairs
  10. donates proton
  11. molarityxvolume
  12. chaos and disorder
Down
  1. adding water to decrease concentration
  2. reaction that feels cold
  3. reaction that forms a solid insoluble salt
  4. measurement of heat energy in a chemical reaction
  5. water movement across semipermeable membrane
  6. principle of shifting equilibrium
  7. resists ph change
  8. acid+base=salt+water
  9. law of gas solubility in solution

21 Clues: heat • water solution • accepts proton • donates proton • molarityxvolume • resists ph change • chaos and disorder • acid+base=salt+water • bronsted-lowry pairs • reaction that feels cold • concentration of solutions • more than one acidic proton • principle of shifting equilibrium • law of gas solubility in solution • thermodynamic spontaneous calculation • ...

Biology chapter 2.4 crossword 2021-09-19

Biology chapter 2.4 crossword crossword puzzle
Across
  1. a chemical reaction absorbs more energy than it releases
  2. the amount of the energy that needs to be absorbs for a chemical reaction to start
  3. the process that change substances into different substances by breaking and forming chemical bonds.
  4. the substances made by a chemical reaction
Down
  1. a chemical reaction that release more energy than it absorbs.
  2. the state when both the reactants and products are made at the same rate
  3. the amount of energy that will break a bond between two atoms
  4. the substances that changed during a chemical reaction

8 Clues: the substances made by a chemical reaction • the substances that changed during a chemical reaction • a chemical reaction absorbs more energy than it releases • a chemical reaction that release more energy than it absorbs. • the amount of energy that will break a bond between two atoms • the state when both the reactants and products are made at the same rate • ...

REDOX REACTION 2020-06-23

REDOX REACTION crossword puzzle
Across
  1. important to maintain the electrical neutrality of the cell.
  2. cell transfer chemical energy to electrical energy.
  3. is relationship between chemical change and electrical work.
  4. is pure compound in electrolyte.
  5. is inactive electrode.
  6. cell can conduct electricity in liquid form (molten) or aqueous solution.
  7. is loss of electron.
  8. is gain of electron.
Down
  1. cell reaction is when standard cell potential greater than 0
  2. is active electrode.
  3. is object that conduct electricity between cell and surroundings.
  4. cell use a spontaneous reaction to generate electrical energy.
  5. is aqueous solution in electrolyte.
  6. at right cell and excess of negative charge.
  7. reaction occur when standard cell potential equal to 0.
  8. at left cell and excess of positive charge.

16 Clues: is active electrode. • is loss of electron. • is gain of electron. • is inactive electrode. • is pure compound in electrolyte. • is aqueous solution in electrolyte. • at left cell and excess of positive charge. • at right cell and excess of negative charge. • cell transfer chemical energy to electrical energy. • reaction occur when standard cell potential equal to 0. • ...

Review Assignment Game 2024-05-24

Review Assignment Game crossword puzzle
Across
  1. The elements/substances that are on the right side of the reaction arrow and are the result of the chemical reaction
  2. The mass of one mol of a substance is the _________
  3. The smallest part of an element
  4. The number of atoms or molecules represented by 6.022*10^23 or Avagodro’s number
  5. A branch of Chemistry dealing with the calculation of the amount of substances in a chemical reaction
  6. A group of atoms held together by bonds and the smallest unit of a chemical compound
  7. An atom that has gained or lost an electron and does not have its original valence
Down
  1. The elements/substances that are on the left side of the reaction arrow and undergo the chemical reaction
  2. The conversion factor that is used to relate the number of two substances' moles in a chemical equation.
  3. The number that goes in front of an element inside of a chemical equation that tells how many moles or molecules of each element or compound there are in the equation

10 Clues: The smallest part of an element • The mass of one mol of a substance is the _________ • The number of atoms or molecules represented by 6.022*10^23 or Avagodro’s number • An atom that has gained or lost an electron and does not have its original valence • A group of atoms held together by bonds and the smallest unit of a chemical compound • ...

chemestry 2024-01-09

chemestry crossword puzzle
Across
  1. process by wich atoms are reorganized
  2. are broken and formed during chemical reactions
  3. substance that lowers the activation energy
Down
  1. what scientists express chemical reactions as
  2. required to start a chemical reaction
  3. minimun amount of energy needed
  4. substances formed during the reaction
  5. starting substances
  6. location where a reactant bind to the enzyme
  7. the reactants that bind to the enzymes
  8. biological catalysts

11 Clues: starting substances • biological catalysts • minimun amount of energy needed • required to start a chemical reaction • process by wich atoms are reorganized • substances formed during the reaction • the reactants that bind to the enzymes • substance that lowers the activation energy • location where a reactant bind to the enzyme • ...

Chemistry cross word 2018-11-19

Chemistry cross word crossword puzzle
Across
  1. A change in the appearance or state of a substance that does not change the composition
  2. A chemical reaction that releases energy
  3. Mixture in which different substances that make up the mixture are visible
  4. Number of protons in the nucleus of one atom of an element
  5. A pure substance formed when non-metals combine
  6. Description of how a substance interacts with other substances, such as acids; It is only observable when a chemical change occurs
  7. Property that describe the physical appearance and composition of a substance
  8. Change of state from a liquid to a gas
  9. Change of state from a liquid to a solid
  10. Change of state from a gas to a liquid
  11. A mixture of two or more pure substances that looks like one substance
  12. A table in which the element are organized by their physical and chemical properties
  13. A substance only made up of one kind of matter,which has a unique set of properties
Down
  1. Anything that has mass and occupies space
  2. Chemical reaction that absorbs energy
  3. Change of state from a solid to a liquid
  4. Change that results when two or more substances react to create a different substance or substances, the new substances have to be completely different properties from the original ones
  5. Change of state from a solid to a gas or from a gas to a solid
  6. Change of state from a gas to a solid
  7. Mass of one atom of an element calculated from the total number of protons, neutrons and electron of that atom
  8. A cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
  9. A pure substance formed when at least one metal and one non-metal combine
  10. A cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  11. A pure substance that cannot be broken down into other substances, it is made up of only one type of atom
  12. A chemical combination of two or more elements in a specific ratio
  13. A combination of pure substances that don't always combine chemically and are not always in the same ratio

26 Clues: Chemical reaction that absorbs energy • Change of state from a gas to a solid • Change of state from a liquid to a gas • Change of state from a gas to a liquid • Change of state from a solid to a liquid • A chemical reaction that releases energy • Change of state from a liquid to a solid • Anything that has mass and occupies space • ...

This is my crossword puzzle demetrus 2021-10-26

This is my crossword puzzle demetrus crossword puzzle
Across
  1. a chemical that gives off heat
  2. a substance formed before chemical reaction
  3. a chemical that absorbs heat
  4. a chemical reaction
Down
  1. a process that changes a substance into a new substance
  2. a substance formed during a chemical reaction
  3. a matter that don't affect its form
  4. a material that takes space

8 Clues: a chemical reaction • a material that takes space • a chemical that absorbs heat • a chemical that gives off heat • a matter that don't affect its form • a substance formed before chemical reaction • a substance formed during a chemical reaction • a process that changes a substance into a new substance

Producing Chemical Reactions 2023-11-27

Producing Chemical Reactions crossword puzzle
Across
  1. matter is not created nor destroyed in any chemical or physical change
  2. a long molecule consisting of many similar or identical monomers linked together.
  3. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
Down
  1. a reaction in which two or more substances combine to form a new compound
  2. materials found in nature that are used by living things
  3. a reaction in which a single compound breaks down to form two or more simpler substances
  4. reaction in which one element replaces another in a compound or when two elements in different compounds trade places
  5. not naturally produced; made by artificial processes
  6. a system in which no matter is allowed to enter or leave
  7. 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
  8. matter can enter from or escape to the surroundings
  9. a number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound

12 Clues: matter can enter from or escape to the surroundings • not naturally produced; made by artificial processes • materials found in nature that are used by living things • a system in which no matter is allowed to enter or leave • matter is not created nor destroyed in any chemical or physical change • ...

Evan Kauffman Science Choice board- Crossword 2024-11-20

Evan Kauffman Science Choice board- Crossword crossword puzzle
Across
  1. more energy is released when the products form than is required to break the bonds in the reactants.
  2. more energy is required to break the bonds of the reactants than is released when products form.
  3. a starting substance in a chemical reaction.
  4. law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical
  5. a characteristic of matter that can be observed as it changes to a different type of matter.
  6. a characteristic of matter that can be observed or measured without changing the identity of the matter
  7. energy the energy released when atoms form bonds.
Down
  1. a process in which atoms of one or more substances rearrange to form one or more new substances.
  2. a change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties.
  3. the ability of a type of matter to burn easily.
  4. law that states that energy is always transferring, but energy is not created or destroyed.
  5. occurs when substances react with oxidizing agents, changing it to a new substance.
  6. a number placed in front of an element symbol or chemical formula in an equation.
  7. occurs when a substance reacts with another substance, changing it into a new substance.
  8. the mass per unit volume of a substance.
  9. the amount of matter in an object.
  10. a substance produced by a chemical reaction.
  11. the amount of space a substance takes up.

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

bio 1 words 2021-10-12

bio 1 words crossword puzzle
Across
  1. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  2. any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to liberate hydrogen, reacts with bases to form salts, and promotes chemical reactions
  3. a material made up of two or more different chemical substance/substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
  4. A substance dissolved in another substance, usually the component of a solution present in the lesser amount.
  5. the surface or material on or from which an organism lives, grows, or obtains its nourishment.
  6. 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.
  7. a primarily electrostatic force of attraction between a hydrogen atom which is covalently bound to a more electronegative atom or group, and another electronegative atom bearing a lone pair of electrons
  8. to manage your social media so that you have more time for your business.
Down
  1. a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative.
  2. energy the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
  3. a region on an enzyme that binds to a protein or other substance during a reaction.
  4. a special type of homogeneous mixture composed of two or more substances.
  5. substance that dissolves a solute, resulting in a solution.
  6. a conceptual structure or entity on which something draws or depends.
  7. the number or expression resulting from the multiplication together of two or more numbers or expressions.
  8. a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral.
  9. a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process.

17 Clues: substance that dissolves a solute, resulting in a solution. • a conceptual structure or entity on which something draws or depends. • a special type of homogeneous mixture composed of two or more substances. • to manage your social media so that you have more time for your business. • ...

Rate of reaction :-) 2012-09-19

Rate of reaction :-) crossword puzzle
Across
  1. The forces between particles that are rearranged in a chemical reaction
  2. When there are smaller pieces of a chemical, more of it can react- so the rate increases
  3. The minimum amount of energy a chemical needs to react
Down
  1. More particles in a smaller space
  2. How quick a reaction is
  3. Gives a higher rate of reaction without increasing the activation energy
  4. This makes the particles vibrate and bump into each other, increasing the rate of reaction
  5. When a reaction absorbs more heat than it releases
  6. When a reaction gives out heat

9 Clues: How quick a reaction is • When a reaction gives out heat • More particles in a smaller space • When a reaction absorbs more heat than it releases • The minimum amount of energy a chemical needs to react • The forces between particles that are rearranged in a chemical reaction • Gives a higher rate of reaction without increasing the activation energy • ...

Chemistry Crosswords 2017-11-15

Chemistry Crosswords crossword puzzle
Across
  1. chemical combination of two or more elements in a specific ratio
  2. slow chemical change that occurs when oxygen in the air reacts with a metal
  3. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  4. invisible negatively charged particle that orbits the nucleus of an atom
  5. chemical reaction that releases energy
  6. pure substance formed when at least one metal and one non-metal combine
  7. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  8. of energy fundamental principle that energy cannot be created or destroyed
  9. positively charged centre of an atom;contains protons and neutrons
  10. number of protons in the nucleus of one atom of an element
  11. group 17 elements in the periodic table; the most reactive non-metals
Down
  1. new substance produced in a chemical reaction between reactants
  2. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  3. mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
  4. mogeneous mixture; mixture of two or more pure substances that looks like one substance
  5. change of state from a solid to a gas or from a gas to a solid
  6. positively charged particle in the nucleus of an atom
  7. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
  8. chemical reaction that absorbs energy
  9. pure substance that cannot be broken down into other substances; substance made up of only one type of atom
  10. table in which the elements are organized by their physical and chemical properties
  11. pure substance formed when non-metals combine
  12. group 18 elements in the periodic table;the most stable and unreactive elements
  13. orbit of electrons around the nucleus of an atom
  14. atom that has become electrically charged because it has lost or gained electrons; a positive ion is an atom that has lost one or more electrons;a negative ion is an atom that has gained one or more electrons

25 Clues: chemical reaction that absorbs energy • chemical reaction that releases energy • pure substance formed when non-metals combine • orbit of electrons around the nucleus of an atom • positively charged particle in the nucleus of an atom • number of protons in the nucleus of one atom of an element • change of state from a solid to a gas or from a gas to a solid • ...

3 Physical Chemistry (Single Award) 2022-03-09

3 Physical Chemistry (Single Award) crossword puzzle
Across
  1. The amount of heat energy given out or absorbed during a reaction.
  2. Increases the rate of reaction by providing a different reaction pathway with a lower activation energy. They are not used up during the reaction.
  3. A chemical reaction in which a more reactive element displaces a less reactive element from its compound.
  4. Q=Energy (J), m=mass (kg), c=specific heat capacity (J/kgoC), ΔT=temperature change
  5. The minimum amount of energy that particles must collide with to react.
  6. The process used to measure the amount of heat energy released or absorbed during a chemical reaction.
  7. Chemical reactions only occur when colliding particles collide with the correct orientation and with sufficient energy (activation energy).
  8. The measure of the amount of product formed or reactant used over time. The units of rate of reaction may be given as g/s, cm3/s or mol/s.
Down
  1. A reaction in which energy is transferred to the surroundings so the temperature of the surroundings increases. *[Bond making is an exothermic process.]
  2. The reaction in which an acid and a base react together to form a salt and water.
  3. A reaction in which energy is taken in from the surroundings so the temperature of the surroundings decreases. *[Bond breaking is an endothermic process.]
  4. The energy change of a reaction which can be calculated from a calorimetry experiment as follows:

12 Clues: The amount of heat energy given out or absorbed during a reaction. • The minimum amount of energy that particles must collide with to react. • The reaction in which an acid and a base react together to form a salt and water. • Q=Energy (J), m=mass (kg), c=specific heat capacity (J/kgoC), ΔT=temperature change • ...

Unit 5 Crossword Puzzel 2022-11-17

Unit 5 Crossword Puzzel crossword puzzle
Across
  1. This is written on the right side of a chemical equation and is what you get as the result of a chemical reaction.
  2. When a hydrocarbon reacts with oxygen to create carbon dioxide and water.CxHy+ O2 → CO2 + H2O
  3. A combination of multiple elements that become chemically bonded that create a new substance.
  4. This is written on the left side of a chemical equation and is how a chemical reaction starts.
  5. Atoms that gain or lose electrons.
  6. What is written in front of a chemical formula that tells you how much of an element there is which helps you balance them.
  7. The reactant breaks down into simpler products. AB → A + B
  8. Two non-metals that are bonded and are sharing electrons.
Down
  1. When reacting its compounds flip-flop places. AB + CD → AD + CB
  2. One element in a compound switches places with an element.
  3. Seven elements that always have two of them in a chemical reaction.
  4. A number written in a small font that indicates the number of atoms present in an element.
  5. Two or more elements combine to create one product. A + B → AB
  6. A metal and non-metal bonded creating positive and negative ions.

14 Clues: Atoms that gain or lose electrons. • Two non-metals that are bonded and are sharing electrons. • One element in a compound switches places with an element. • The reactant breaks down into simpler products. AB → A + B • Two or more elements combine to create one product. A + B → AB • When reacting its compounds flip-flop places. AB + CD → AD + CB • ...

chem crossword 2025-06-16

chem crossword crossword puzzle
Across
  1. substances that undergo chemical change
  2. Symbolic representation of a chemical reaction
  3. A reaction where two or more reactants combine to form a single product
  4. A reaction in which one element replaces another in a compound
  5. The type of reaction in which one compound breaks down into simpler substances
Down
  1. The reddish-brown coating formed on iron
  2. A reaction in which an insoluble substance forms as a product
  3. A reaction in which heat is released
  4. A reaction in which heat is absorbed
  5. The type of reaction where an acid and a base neutralize each other to form salt and water

10 Clues: A reaction in which heat is released • A reaction in which heat is absorbed • substances that undergo chemical change • The reddish-brown coating formed on iron • Symbolic representation of a chemical reaction • A reaction in which an insoluble substance forms as a product • A reaction in which one element replaces another in a compound • ...

chemistry crossword 2018-11-14

chemistry crossword crossword puzzle
Across
  1. A pure substance formed when at least one metal and one non-metal combine
  2. A combination of pure substances that don't always combine chemically and are not always in the same ratio
  3. A table in which the element are organized by their physical and chemical properties
  4. A change in the appearance or state of a substance that does not change the composition
  5. A cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
  6. Property that describe the physical appearance and composition of a substance
  7. Change of state from a liquid to a solid
  8. A chemical reaction that releases energy
  9. A pure substance formed when non-metals combine
  10. Mixture in which different substances that make up the mixture are visible
  11. A mixture of two or more pure substances that looks like one substance
  12. Anything that has mass and occupies space
Down
  1. Change that results when two or more substances react to create a different substance or substances, the new substances have to be completely different properties from the original ones
  2. Number of protons in the nucleus of one atom of an element
  3. A substance only made up of one kind of matter,which has a unique set of properties
  4. Change of state from a solid to a gas or from a gas to a solid
  5. Description of how a substance interacts with other substances, such as acids; It is only observable when a chemical change occurs
  6. Change of state from a gas to a liquid
  7. Chemical reaction that absorbs energy
  8. Mass of one atom of an element calculated from the total number of protons, neutrons and electron of that atom
  9. Change of state from a gas to a solid
  10. Change of state from a liquid to a gas
  11. Change of state from a solid to a liquid
  12. A chemical combination of two or more elements in a specific ratio
  13. A cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  14. A pure substance that cannot be broken down into other substances, it is made up of only one type of atom

26 Clues: Chemical reaction that absorbs energy • Change of state from a gas to a solid • Change of state from a gas to a liquid • Change of state from a liquid to a gas • Change of state from a solid to a liquid • Change of state from a liquid to a solid • A chemical reaction that releases energy • Anything that has mass and occupies space • ...

Chapter 7 Vocabulary 2017-03-23

Chapter 7 Vocabulary crossword puzzle
Across
  1. Soil located above it's parent material.
  2. Rocks and minerals undergo changes in their composition as the result of chemical reaction.
  3. Transport of weathered material from 1 location to another.
  4. Materials are dropped in another location.
  5. Outer layers are stripped away.
  6. Distance layer, or zone within a soil profile.
  7. Erosion by running water in small channels.
Down
  1. Repeated thawing and freezing.
  2. Vertical sequence of soil layers.
  3. Channel becomes deep and wide.
  4. Rocks on or near Earth's surface break down and change.
  5. Moved to a location away from it's parent bedrock.
  6. Rocks and minerals break down into smaller pieces.
  7. Chemical reaction of oxygen with other substances.
  8. Loose covering of broken rock particles and decaying organic matter.
  9. Reaction of water with other substances.

16 Clues: Repeated thawing and freezing. • Channel becomes deep and wide. • Outer layers are stripped away. • Vertical sequence of soil layers. • Soil located above it's parent material. • Reaction of water with other substances. • Materials are dropped in another location. • Erosion by running water in small channels. • Distance layer, or zone within a soil profile. • ...

Kasey Foster 2016-12-08

Kasey Foster crossword puzzle
Across
  1. is the most common green pigment in plants
  2. capture light energy
  3. absence of free oxygen
  4. chemical reaction used by all aerobic organisms
  5. light energy from sun
  6. Sac like membrane
  7. an organism that obtains energy through chemosynthesis
  8. rod shaped organelles that can be considered the power
  9. relating to invloving or requiring free oxygen
Down
  1. first step in cellular resperation
  2. connective tissue in the blood vessles
  3. it's a metobolic reaction and processes
  4. organism that captures energy for sunlight
  5. energy of currency of life
  6. chemical cycle for photosynesis
  7. an organism deriving its nutritional requirements
  8. A colorless syurp
  9. formed in living cells

18 Clues: A colorless syurp • Sac like membrane • capture light energy • light energy from sun • absence of free oxygen • formed in living cells • energy of currency of life • chemical cycle for photosynesis • first step in cellular resperation • connective tissue in the blood vessles • it's a metobolic reaction and processes • organism that captures energy for sunlight • ...

Energy and Chemical Reactions 2012-12-05

Energy and Chemical Reactions crossword puzzle
Across
  1. contain more bond energy in in an exothermic reaction
  2. contain more bond energy in an endothermic reaction
  3. does not follow the rule of conservation
  4. most important endothermic reaction
  5. are all exothermic chemical reactions
  6. a system where nothing may enter or leave the system
Down
  1. a system where materials can floe in and out freely
  2. most important exothermic reaction
  3. an example would be iron rusting
  4. energy needed to start a reaction
  5. energy is stored
  6. energy is released
  7. can be released as a form of energy in an exothermic reaction
  8. this is what the surroundings become in an endothermic reaction

14 Clues: energy is stored • energy is released • an example would be iron rusting • energy needed to start a reaction • most important exothermic reaction • most important endothermic reaction • are all exothermic chemical reactions • does not follow the rule of conservation • a system where materials can floe in and out freely • contain more bond energy in an endothermic reaction • ...

Chemistry Crossword 2020-09-04

Chemistry Crossword crossword puzzle
Across
  1. horrizontal row
  2. solid from liquid
  3. gas
  4. a mixture of substances
  5. packed atoms
  6. new substance
  7. measurement of space
Down
  1. chemical composition
  2. physically combined
  3. two or more elements
  4. fluid
  5. table of elements
  6. from chemical reaction
  7. separating solids
  8. vertical column
  9. a pure substance

16 Clues: gas • fluid • packed atoms • new substance • horrizontal row • vertical column • a pure substance • solid from liquid • table of elements • separating solids • physically combined • chemical composition • two or more elements • measurement of space • from chemical reaction • a mixture of substances

Types Of Chemical Reactions 2024-05-06

Types Of Chemical Reactions crossword puzzle
Across
  1. gain of oxygen or loss of hydrogen
  2. heat energy is given out during a chemical reaction
  3. heat energy is absorbed during a chemical reaction
  4. this reaction produces insoluble salts.
  5. lustrous,malleable,ductile and good conductors of heat
  6. two or more substances react to form a new single substance.
  7. can be classified as metals and non metals.
  8. gain of hydrogen or loss of oxygen
Down
  1. causes damage to car bodies,bridges,iron nail etc.
  2. an element displaces another element from its compound
  3. represents the reactants and their physical states symbolically.
  4. two diffrent group of atoms are exchanged
  5. opposite to combination reactions
  6. used for whitewashing
  7. used for black and white photography
  8. used as an antioxidant for foods.

16 Clues: used for whitewashing • opposite to combination reactions • used as an antioxidant for foods. • gain of oxygen or loss of hydrogen • gain of hydrogen or loss of oxygen • used for black and white photography • this reaction produces insoluble salts. • two diffrent group of atoms are exchanged • can be classified as metals and non metals. • ...

Yes! 2022-05-26

Yes! crossword puzzle
Across
  1. The chemical compound responsible for pineapple scent. [Page 7, two words]
  2. The planet with the fourth highest number of moons. [Page 5]
  3. Seventeen of Saturn’s new moons follow a ___ orbit. [Page 5]
  4. This Japanese animal uses hot springs to stay warm during cold weather. [Page 6, two words]
  5. The peak month of the flu season is ___. [Page 7]
  6. These are the staritng substances in all chemical reactions including the handwarmer chemical reaction. [Pages 26 and 27]
  7. “AI” is the acronym for ___. [Page 4, two words]
  8. The month immediately before the beginning of the flu season is ___. [Page 7]
  9. This word means a person is able to spread an illness or sickness to someone else. [Page 7]
  10. The gas involved in the handwarmer reaction. [Pages 26 and 27]
  11. The outside of the Treetop Tower has a ___ shape. [Pages 2 and 3, two words]
Down
  1. This kind of chemical reaction generates heat and is the reason we use handwarmers. [Pages 26 and 27]
  2. The chemical compound responsible for popcorn scent. [Page 7]
  3. The powder inside a handwarmer is made of this element. [Pages 26 and 27]
  4. Scientists were able to discover Saturn’s new moons using a telescope that detects ___ light. [Page 5]
  5. This word means a moon orbits its planet in the same direction that the planet spins/rotates. [Page 5]
  6. Scientists hypothesize that sitting in the hot springs results in fewer ___ in the monkey droppings. [Page 6, two words]
  7. The chemical compound responsible for sweat scent. [Page 7, two words]
  8. The number of stairs from the bottom to top of the Treetop Tower. [Pages 2 and 3]

19 Clues: “AI” is the acronym for ___. [Page 4, two words] • The peak month of the flu season is ___. [Page 7] • The planet with the fourth highest number of moons. [Page 5] • Seventeen of Saturn’s new moons follow a ___ orbit. [Page 5] • The chemical compound responsible for popcorn scent. [Page 7] • The gas involved in the handwarmer reaction. [Pages 26 and 27] • ...

Chemistry Crossword 2023-08-15

Chemistry Crossword crossword puzzle
Across
  1. ______ change. Occurs when new substances are formed as atoms rearrange into new substances. May involve evolution of a gas, production of a new solid, change in colour or temperature
  2. A subatomic particle located in shells around the nucleus
  3. A substance's mass per unit of volume (calculated mass/volume)
  4. A positively charged subatomic particle
  5. Substances that are shiny, have high melting points, are malleable and are good thermal and electrical conductors
  6. A pure substance made up of one type of particle
  7. ______ molecules, for example, hydrogen gas (H2), are made up of two atoms chemically combined
  8. Burning a piece of toast is an example of a ______ change
  9. A type of corrosion that only affects iron
Down
  1. The temperature at which a particular organic compound gives off sufficient vapour to ignite in air
  2. Type of reaction where reactants have more heat energy than the products. Heat is absorbed in the reaction and the reaction feels cold
  3. ______ change. Occurs when no new substances are formed. May involve a change in shape or size or change in state of matter. Dissolving and melting are examples of this type of change
  4. Type of reaction where products have more heat energy than the reactants. Heat is released and the reaction will feel hot
  5. The smallest unit of a substance where two or more atoms are combined
  6. An element with the symbol Na
  7. How easily something will burn or ignite, causing fire or combustion
  8. A type of chemical reaction where a metal reacts with oxygen to produce a chemical change

17 Clues: An element with the symbol Na • A positively charged subatomic particle • A type of corrosion that only affects iron • A pure substance made up of one type of particle • A subatomic particle located in shells around the nucleus • Burning a piece of toast is an example of a ______ change • A substance's mass per unit of volume (calculated mass/volume) • ...

The SOLUTION to the AP Chem Test 2020-06-04

The SOLUTION to the AP Chem Test crossword puzzle
Across
  1. The tendency of an atom in a molecule to attract shared electrons to itself
  2. The process of using a solution with a known concentration to determine the concentration of another solution through a monitored reaction
  3. Chemical bond that involves the sharing of electron pairs between atoms
  4. Loss of electrons (LEO)
  5. heat The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celsius
  6. Sees two reactants fuse to form products in the form A + B → AB
  7. The forces existing among noble gas atoms and nonpolar molecules, that involve an accidental dipole that induces a momentary dipole in a neighbor
  8. A substance that cannot be decomposed into simpler substances by chemical or physical means
  9. The energy released when ions are combined to make a compound
  10. The degree of randomness and disorder or molecules based on the number of different arrangements available to them in a given system or reaction
  11. The theory that for a chemical reaction to occur, the particles must collide with enough force in the correct orientation
  12. The mass in grams of one mole of molecules or formula units of a substance, also known as molecular weight
  13. A compound that is able to act as both an acid or base
  14. A three-dimensional system of points designating the positions of the centers of the components of a solid (atoms, ions, or molecules)
  15. According to the Bronsted-Lowry theory, a compound that accepts protons
  16. Consist of atoms or molecules held together by IMFs. Because these forces are relatively weak, molecular solids tend to be soft and possess low melting points
  17. The minimum amount of energy required to remove the most loosely bound electron or the valence electron
  18. A substance that changes the speed of a reaction by reducing the activation energy without being altered by the overall reaction
  19. The number of protons in the nucleus of an atom
  20. When in the presence of heat and oxygen, hydrocarbons burn into oxygen and carbon dioxide
  21. Alloy where small atoms are inserted between spaces of the metal lattice
  22. A method or technique used to separate a mixture of chemical substances into chemical components
  23. According to the Bronsted-Lowry theory, a compound that donates protons
  24. The total step by step elementary sequences of a chemical reaction
  25. The electrostatic attraction between oppositely charged ions
  26. Alloy where one metal is substituted for another metal of a similar size
  27. Valence shell electron pair repulsion theory, model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms
  28. Attractions between entire molecules due to charge differences, relatively weak interactions that occur between molecules
  29. One reactant decomposes into 2 or more products, represented by AB → A + B
  30. An intermolecular force between an ion and a molecule with a dipole in a solution
  31. A reaction where electrons are transferred, the reactant with less attraction for electrons transfers electrons to the reactant with more attraction for electrons
  32. 6.022 * 10 ^-23
  33. States that the force of attraction/ repulsion between two charges is directly proportional to the product of charges and inversely proportional to the square of distance between them
Down
  1. The principle stating that as protons are added one by one to the nucleus to build up the elements, electrons are similarly added to hydrogen-like orbitals
  2. A substance that is both produced and reacts in a series of chemical reaction steps
  3. Gain of electrons (GER)
  4. An electrochemical cell that produce electrical energy through redox reactions taking place within the cell
  5. Energy required to remove an electron from a gaseous atom or ion
  6. The most electronegative element
  7. Typically good conductors of electricity and heat, malleable (can be hammered into thin sheets), and ductile- which means that they can be drawn into wires
  8. Half the distance between the nuclei in a molecule consisting of identical atoms
  9. The energy change associated with the additions of an electron to a gaseous atom
  10. The attractive force resulting when polar molecules line HydrogenBonding Unusually strong dipole-dipole attractions that occur among molecules in which hydrogen is bonded to a highly electronegative atom
  11. The minimum energy required to start a chemical reaction
  12. Consist of atoms held together in large networks by covalent bonds. These solids are much harder and have higher melting points than molecular solids
  13. The time it takes for a reactant concentration to decrease by half compared to its initial concentration
  14. An unchanged ion that exists as both a product and reactant in a chemical reaction
  15. The maximum amount of product that can be produced or yielded

48 Clues: 6.022 * 10 ^-23 • Gain of electrons (GER) • Loss of electrons (LEO) • The most electronegative element • The number of protons in the nucleus of an atom • A compound that is able to act as both an acid or base • The minimum energy required to start a chemical reaction • The electrostatic attraction between oppositely charged ions • ...

U10 Vocab 2024-04-29

U10 Vocab crossword puzzle
Across
  1. What is the state in a reversible chemical reaction when the forward and reverse reactions proceed at the same rate?
  2. What principle states that if a system at equilibrium is disturbed, it will shift its position to counteract the disturbance?
  3. What is the measure of how fast a chemical reaction occurs?
  4. What is the expression used to calculate the reaction quotient in a chemical reaction?
Down
  1. What is the mathematical expression used to describe the equilibrium constant in a chemical reaction?
  2. What is the arrangement of molecules in a chemical reaction that influences its rate?
  3. What theory states that chemical reactions occur when molecules collide with sufficient energy and proper orientation?
  4. What is the mathematical representation of the rate of a chemical reaction, often denoted as Answer: Rate Law

8 Clues: What is the measure of how fast a chemical reaction occurs? • What is the arrangement of molecules in a chemical reaction that influences its rate? • What is the expression used to calculate the reaction quotient in a chemical reaction? • What is the mathematical expression used to describe the equilibrium constant in a chemical reaction? • ...

U10 Vocab 2024-04-29

U10 Vocab crossword puzzle
Across
  1. What is the state in a reversible chemical reaction when the forward and reverse reactions proceed at the same rate?
  2. What principle states that if a system at equilibrium is disturbed, it will shift its position to counteract the disturbance?
  3. What is the measure of how fast a chemical reaction occurs?
  4. What is the expression used to calculate the reaction quotient in a chemical reaction?
Down
  1. What is the mathematical expression used to describe the equilibrium constant in a chemical reaction?
  2. What is the arrangement of molecules in a chemical reaction that influences its rate?
  3. What theory states that chemical reactions occur when molecules collide with sufficient energy and proper orientation?
  4. What is the mathematical representation of the rate of a chemical reaction, often denoted as Answer: Rate Law

8 Clues: What is the measure of how fast a chemical reaction occurs? • What is the arrangement of molecules in a chemical reaction that influences its rate? • What is the expression used to calculate the reaction quotient in a chemical reaction? • What is the mathematical expression used to describe the equilibrium constant in a chemical reaction? • ...

U10 Vocab 2024-04-29

U10 Vocab crossword puzzle
Across
  1. What is the state in a reversible chemical reaction when the forward and reverse reactions proceed at the same rate?
  2. What principle states that if a system at equilibrium is disturbed, it will shift its position to counteract the disturbance?
  3. What is the measure of how fast a chemical reaction occurs?
  4. What is the expression used to calculate the reaction quotient in a chemical reaction?
Down
  1. What is the mathematical expression used to describe the equilibrium constant in a chemical reaction?
  2. What is the arrangement of molecules in a chemical reaction that influences its rate?
  3. What theory states that chemical reactions occur when molecules collide with sufficient energy and proper orientation?
  4. What is the mathematical representation of the rate of a chemical reaction, often denoted as Answer: Rate Law

8 Clues: What is the measure of how fast a chemical reaction occurs? • What is the arrangement of molecules in a chemical reaction that influences its rate? • What is the expression used to calculate the reaction quotient in a chemical reaction? • What is the mathematical expression used to describe the equilibrium constant in a chemical reaction? • ...

y9c chemistry crossword asignment 2015-11-11

y9c chemistry crossword asignment crossword puzzle
Across
  1. The smallest particle of an element or compound
  2. compound witch releases oxygen
  3. involved in a cell not and nuclease
  4. absorption of a chemical heat reaction
Down
  1. involves protons neutrons and electrons
  2. also known as substance
  3. compared with weight
  4. high-temperature chemical reaction
  5. an elementary particle found in the atomic nuclease
  6. releasing heat
  7. can burn and melt thing (hot)

11 Clues: releasing heat • compared with weight • also known as substance • can burn and melt thing (hot) • compound witch releases oxygen • high-temperature chemical reaction • involved in a cell not and nuclease • absorption of a chemical heat reaction • involves protons neutrons and electrons • The smallest particle of an element or compound • ...

Stoichiometry 2013-05-30

Stoichiometry crossword puzzle
Across
  1. Any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction
  2. Equal volumes of gases at the same temperature and pressure contain equal numbers of particles.
  3. A formula with the lowest whole-number ratio of elements in a compound
  4. Amount of substance
  5. The amount of product that could form calculated from a balanced chemical equation; it represents the maximum amount of product that could be formed from a given amount of reactant
Down
  1. The volume occupied by 1 mole of a gas at STP (22.4 L)
  2. The mass of one mole of a substance
  3. Number of representative particles in a mole, 6.02 X 10^23
  4. The portion of chemistry involving the calculation of quantities of substances involved in chemical reactions (and numerical relationships in chemical reactions)
  5. The amount of product that actually forms when the reaction is carried out in the laboratory
  6. The percent by mass of each element in a compound RepresentativeParticle The smallest unit into which a substance can be broken down without a change in composition, usually atoms, molecules, or ions StandardTemperature&Pressure (STP) The conditions under which the volume of a gas is usually measured
  7. A reagent present in a quantity that is more than sufficient to react with a limiting reagent; any reactant that remains after the limiting reagent is used up in a chemical reaction
  8. A conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles
  9. The ratio of the actual yield to the theoretical yield expressed as a percent; a measure of the efficiency of a reaction

14 Clues: Amount of substance • The mass of one mole of a substance • The volume occupied by 1 mole of a gas at STP (22.4 L) • Number of representative particles in a mole, 6.02 X 10^23 • A formula with the lowest whole-number ratio of elements in a compound • The amount of product that actually forms when the reaction is carried out in the laboratory • ...

Revision on Metals (Year 8) 2019-05-05

Revision on Metals (Year 8) crossword puzzle
Across
  1. Hydrated iron oxide has the common name of _____.
  2. Tin and copper make _________.
  3. This is a variable that you keep the same during an investigation.
  4. Potassium reacts more vigorously than sodium; potassium is _______ in the reactivity series than sodium.
  5. Metal burns in oxygen is called a __________ reaction.
  6. This is a substance that is formed in a chemical reaction.
  7. Metal reacts with hydrochloric acid to give metal ______ and hydrogen.
  8. Magnesium reacts with copper sulfate to give magnesium sulfate and copper is a _________ reaction.
  9. Iron needs ________ and water to rust.
  10. Rocks containing metal are called metal _____.
  11. A solution of a non-metal oxide is _______, with a pH < 7.
  12. This is a variable that you change in an investigation.
  13. An _______ is made from two or more elements.
  14. This is a variable that you measure.
  15. Metals are ________, meaning that they can be shaped without breaking or cracking.
Down
  1. Metal reacts with an acid to give a metal _____ and hydrogen.
  2. A ______ splint will give a pop sound in the presence of hydrogen gas.
  3. This is a substance that takes part in and undergoes change during a chemical reaction.
  4. The law of ___________ of mass states that matter cannot be created or destroyed in a chemical reaction.
  5. A list of metals in the order of how vigorously they react is called The __________ series.
  6. The process of separating metal and rock using high temperatures.
  7. This is a substance containing elements which are chemically bonded to each other.
  8. Iron fillings burn in oxygen to give iron _______.
  9. Sodium reacts with water to give sodium ________ and hydrogen.
  10. A solution of a metal oxide is _________, with a pH > 7.
  11. An element contains only one type of ______.
  12. Copper is _____ reactive than iron.

27 Clues: Tin and copper make _________. • Copper is _____ reactive than iron. • This is a variable that you measure. • Iron needs ________ and water to rust. • An element contains only one type of ______. • An _______ is made from two or more elements. • Rocks containing metal are called metal _____. • Hydrated iron oxide has the common name of _____. • ...

Unit 3 Crossword 2023-05-16

Unit 3 Crossword crossword puzzle
Across
  1. the synthesis of organic compounds by bacteria or other living organisms
  2. Only eats plants
  3. Building up
  4. Eats all
  5. living, active, or occurring only in the presence of oxygen
  6. Adenosine triphosphate
  7. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  8. Converting food into energy
  9. (of a reaction or process) accompanied by the release of heat.
  10. a metabolic pathway that uses glucose to produce adenosine triphosphate
  11. Makes product
  12. the stacks of thylakoids embedded in the stroma of a chloroplast
  13. the supportive tissue of an epithelial organ, tumor, gonad
Down
  1. a substance produced by a living organism
  2. process modifying the molecular structure of a protein
  3. (of a reaction or process) accompanied by or requiring the absorption of heat.
  4. A reaction
  5. Feeds on dead organic material
  6. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
  7. the substance between cells or in which structures are embedded
  8. Required to activate atoms
  9. Breaking down or losing
  10. a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis
  11. Only eats meat
  12. the process of fermentation involved in the making of beer, wine, and liquor, in which sugars are converted to ethyl alcohol.
  13. Takes in product
  14. relating to, involving, or requiring an absence of free oxygen
  15. the functional barrier to the passage of small molecules between the cytosol and the matrix
  16. Material used in reaction
  17. The species formed from chemical reactions

30 Clues: Eats all • A reaction • Building up • Makes product • Only eats meat • Only eats plants • Takes in product • Adenosine triphosphate • Breaking down or losing • Material used in reaction • Required to activate atoms • Converting food into energy • Feeds on dead organic material • a substance produced by a living organism • The species formed from chemical reactions • ...

Chemical Kinetics 2023-07-30

Chemical Kinetics crossword puzzle
Across
  1. rate of reaction determined at a specified concentration or specified time
  2. amount of substance per unit volume
  3. speed at which the reaction takes place
  4. refers to the number of molecules reacting in an elementary step
Down
  1. refers to whether a reaction can occur spontaneously or not
  2. a proportionality constant which quantifies the rate and direction of a chemical reaction
  3. rate of reaction is directly proportional to ______ to chemical reaction
  4. a substance that can initiate or accelerate a chemical reaction without itself being affected or consumed
  5. The pressure that is exerted by one among the mixture of gases if it occupies the same volume on its own is known as
  6. state in which both the reactants and products are present in concentrations which have no further tendency to change with time

10 Clues: amount of substance per unit volume • speed at which the reaction takes place • refers to whether a reaction can occur spontaneously or not • refers to the number of molecules reacting in an elementary step • rate of reaction is directly proportional to ______ to chemical reaction • rate of reaction determined at a specified concentration or specified time • ...

Chemical reaction and equations 2021-06-29

Chemical reaction and equations crossword puzzle
Across
  1. Opposite of decomposition
  2. removeshydrogen or adds oxygen
  3. breaking down of the reactants using electricity
  4. calcium hydroxide
  5. an unbalanced equation
  6. removal of hydrogen from a substance.
Down
  1. an insoluble substance that is formed as a result of chemical reaction
  2. burning of natural gas
  3. AgCl turns grey
  4. both oxidation and reduction taking place in a reaction
  5. when a single reactant breaks down to simpler substances
  6. ahighly reactive metal displaces least reactive metal

12 Clues: AgCl turns grey • calcium hydroxide • burning of natural gas • an unbalanced equation • Opposite of decomposition • removeshydrogen or adds oxygen • removal of hydrogen from a substance. • breaking down of the reactants using electricity • ahighly reactive metal displaces least reactive metal • when a single reactant breaks down to simpler substances • ...

Cheme-Soccer 2024-02-11

Cheme-Soccer crossword puzzle
Across
  1. chemical reaction in which an alcohol and a carboxylic acid react to form an ester and water.
  2. Which nickname did Milan fans gain in reference to a reliance on a transport?
  3. A measure of the disorder or randomness in a system
  4. ___ engineering emphasizes environmentally conscious design and practices to minimize the environmental impact of engineering processes and products.
  5. Messi travelled with Argentina to face Ecuador, where he was uncharacteristically substituted due to ‘fatigue’.
  6. Charged particle
  7. How Inter Milan's nickname (In Italian it means 'black and blue')
  8. Has the highest number of appearances in Milano Derby
  9. A state of matter where a gas has been energized until atomic electrons are no longer associated with any particular atomic nucleus
  10. Nuclear reaction in which two atomic nuclei combine to form a heavier nucleus
Down
  1. biological catalysts that speed up chemical reactions in living organisms.
  2. American institute of chemical engineers
  3. Electric potential difference between two points in a circuit
  4. Medium containing ions that is electrically conducting through the movement of those ions
  5. Condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs
  6. Who transfered to Inter Miami with Messi?
  7. How League Cup is called in England?
  8. What is Messi's nickname?

18 Clues: Charged particle • What is Messi's nickname? • How League Cup is called in England? • American institute of chemical engineers • Who transfered to Inter Miami with Messi? • A measure of the disorder or randomness in a system • Has the highest number of appearances in Milano Derby • Electric potential difference between two points in a circuit • ...

BIO 131 Chemistry of Life 2025-02-07

BIO 131 Chemistry of Life crossword puzzle
Across
  1. A molecule that dissociates easily in water
  2. The polysaccharide used to store energy in animals.
  3. The level of protein structure in which hydrogen bonds form between amino acids forming beta pleated sheets or alpha helixes
  4. The type of bond that holds the atoms of carbohydrates together (two words).
  5. A compound formed between a cation (other than hydrogen) and an anion (other than hydroxide)
  6. A negatively charged particle that is part of an atom.
  7. A substance that releases hydroxide ions and accepts hydrogen ions.
  8. A chemical reaction in which a water molecule is chemically added to break a larger molecule down into smaller molecules.
  9. The material in which DNA is combined with histones
  10. The chemical reaction that builds macromolecules (two words).
  11. The nitrogenous base that binds with cytosine
Down
  1. A bond in which one atom loses an electron and another gains an electron.
  2. A protein that acts as a catalyst meaning that it changes the rate of chemical reactions
  3. A breaking down reaction.
  4. A very weak bond between the positive end of one molecule and the negative end of another
  5. A type of macromolecule that does not have a building block.
  6. A chemical that resists a change in pH
  7. Chemicals that contain a carbon backbone.

18 Clues: A breaking down reaction. • A chemical that resists a change in pH • Chemicals that contain a carbon backbone. • A molecule that dissociates easily in water • The nitrogenous base that binds with cytosine • The polysaccharide used to store energy in animals. • The material in which DNA is combined with histones • A negatively charged particle that is part of an atom. • ...