chemical reaction Crossword Puzzles

Chemistry Crossword 2017-03-23

Chemistry Crossword crossword puzzle
Across
  1. a substance that increases the rate of a reaction but is not used up in the reaction
  2. a long chain molecule formed by joining of many smaller molecules (monomers)
  3. a reaction that involves the breakdown of a compound
  4. a strong acid readily releases a hydrogen ion in a chemical reaction
  5. an object/substance that can broken by bacteria/fungi and other living organisms
  6. a reaction that involves the building up of compounds by combining elements
  7. an acid which most of its molecules release hydrogen ions into solution
  8. a reaction in which an acid and a base combine to produce a metal salt and water
  9. a reaction that involves oxygen, light and heat energy
  10. a small molecule from which polymers are made
  11. an acid solution with a high concentration
  12. a reaction used to produce solid products from solutions of ionic substances
  13. A theory that says the particles must collide to react
  14. how fast or slow a reaction proceeds
  15. a mixture of solute dissolved in water
Down
  1. the number of active molecules in a set volume of solution
  2. an ion that does not take part in a chemical reaction
  3. a reaction that involves the combination of oxygen with a fuel or metal
  4. an insoluble compound formed in a precipitation reaction
  5. process of joining of smaller units (monomers) to form a polymer
  6. a molecule that contains only carbon and hydrogen atoms
  7. a small number of active molecules (acid) in a solution

22 Clues: how fast or slow a reaction proceeds • a mixture of solute dissolved in water • an acid solution with a high concentration • a small molecule from which polymers are made • a reaction that involves the breakdown of a compound • an ion that does not take part in a chemical reaction • a reaction that involves oxygen, light and heat energy • ...

Chemistry 2024-06-13

Chemistry crossword puzzle
Across
  1. reaction in which oxidation and reduction both takes places simultaneously
  2. Reaction in which a more reactive metal displaces a less reactive metal
  3. Reaction in which a single compound breaks into two or more elements or compounds
  4. Reaction in which heat is released
  5. A shorter way to show chemical reactions using symbols instead of words
Down
  1. The insoluble substance formed during a chemical reaction
  2. Substances that are formed as a result of a chemical reaction
  3. A process that occurs when atoms or groups of atoms lose electrons.
  4. Spoilage of food
  5. change in which new substance and new properties are formed
  6. substance that take place in reaction

11 Clues: Spoilage of food • Reaction in which heat is released • substance that take place in reaction • The insoluble substance formed during a chemical reaction • change in which new substance and new properties are formed • Substances that are formed as a result of a chemical reaction • A process that occurs when atoms or groups of atoms lose electrons. • ...

Unit 5 (Chapter 20 p456) 2023-10-09

Unit 5 (Chapter 20 p456) crossword puzzle
Across
  1. a term that describes a chemical reaction in which there is a net release of energy
  2. the new materials formed in a chemical reaction
  3. a term that describes a chemical reaction in which there is a net absorption of energy
  4. matter is neither created nor destroyed during a chemical reaction
  5. a measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
Down
  1. the reacting substances in a chemical reaction
  2. a representation of a chemical reaction in which reactants are drawn before an arrow that points to the products
  3. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  4. the minimum energy required in order for a chemical reaction to proceed

9 Clues: the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • matter is neither created nor destroyed during a chemical reaction • the minimum energy required in order for a chemical reaction to proceed • a term that describes a chemical reaction in which there is a net release of energy • ...

Unit 7.2 Chemical Reactions and Energy 2025-01-15

Unit 7.2 Chemical Reactions and Energy crossword puzzle
Across
  1. Individuals or groups who have a vested interest in a particular project or decision
  2. Chemical reaction that needs a constant input of energy to continue because it takes more energy to break bonds in the reactants than is released when new bonds form in the products.
  3. Law stating that energy cannot be created or destroyed in chemical reactions.
  4. An apparatus in which environmental conditions, such as temperature and humidity, can be controlled
  5. The series of effects that result from a single action or decision
  6. Process in which some substances, called reactants, change chemically into different substances, called products
  7. Change in matter that occurs when matter changes chemically into an entirely different substance with different chemical properties.
  8. To make something as effective as possible
  9. The relocation of energy from one place to another, usually in a different form.
  10. substance that starts a chemical reaction
  11. Factors that limit or restrict what can be done or achieved
  12. A set of standards or rules used to evaluate or judge something
  13. Chemical reaction that releases energy because it takes less energy to break bonds in the reactants than is released when new bonds form in the product.
  14. Transfer of thermal energy between objects that have different temperatures.
  15. Change in one or more of matter’s physical properties.
Down
  1. The compromises or sacrifices made when choosing between two or more options
  2. preliminary version of a product or a system used for testing and evaluation
  3. Law stating that matter cannot be created or destroyed in chemical reactions.
  4. Energy Total kinetic energy of all the atoms that make up an object.
  5. Best or ideal
  6. Average kinetic energy of particles of matter.
  7. Substance that is produced in a chemical reaction.

22 Clues: Best or ideal • substance that starts a chemical reaction • To make something as effective as possible • Average kinetic energy of particles of matter. • Substance that is produced in a chemical reaction. • Change in one or more of matter’s physical properties. • Factors that limit or restrict what can be done or achieved • ...

Macromolecules and Enzymes 2021-12-06

Macromolecules and Enzymes crossword puzzle
Across
  1. substance that speeds up the rate of a chemical reaction
  2. element or compounds produced by a chemical reaction
  3. protein catalyst that speeds up the rate of specific biological reaction
  4. process that changes, or transforms, one set of chemicals into another set of chemicals
  5. compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source energy for the body
Down
  1. elements or compounds that enter into a chemical reaction
  2. energy that is needed to get a reaction started
  3. compound with an amino group on one end an a carboxyl group on the other end
  4. molecules composed of may monomers; makes up macromolecules
  5. reactant of an enzyme-catalyzed reaction
  6. subunit of which nucleic acids are composed; made up of a 5 -carbon sugar, a phosphate group, and a nitrogenous base.
  7. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorous
  8. macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  9. small chemical unit that makes up a polymer

14 Clues: reactant of an enzyme-catalyzed reaction • small chemical unit that makes up a polymer • energy that is needed to get a reaction started • element or compounds produced by a chemical reaction • substance that speeds up the rate of a chemical reaction • elements or compounds that enter into a chemical reaction • ...

Chemical Reactions 2022-11-07

Chemical Reactions crossword puzzle
Across
  1. an instrument that measure the amount of light of a specific wavelength absorbed by a chemical compound
  2. describes a chemical reaction by showing the formula of all reactants and products
  3. a description of a chemical compound using the letter designations of the elements
  4. the amount of a product produced by a chemical reaction
  5. a chemical compound produced through a chemical reaction
Down
  1. the forces between atoms that hold those atoms together to form compounds
  2. a chemical that speeds up a chemical reaction without being consumed in the reaction
  3. an insulated container that prevents a chemical reaction from gaining or losing heat due to its surroundings
  4. anything that has mass and takes up space
  5. the smallest particle of matter that still retains the properties of an element

10 Clues: anything that has mass and takes up space • the amount of a product produced by a chemical reaction • a chemical compound produced through a chemical reaction • the forces between atoms that hold those atoms together to form compounds • the smallest particle of matter that still retains the properties of an element • ...

Stoichiometry 2022-01-21

Stoichiometry crossword puzzle
Across
  1. Used in a chemical equation to determine mole ratios.
  2. The ratio of the actual yield to the theoretical yield shown as a percent.
  3. A combination of chemical symbols and numbers to represent a substance.
  4. A chemical substance that is present at the end of a chemical reaction.
  5. How many moles are in 160 grams of CH4?
  6. maximum amount of a product that can be given off.
  7. The reactant in a chemical equation that is completely used up.
  8. A unit of amount, the amount of a substance containing 6.02x10^23 entities.
  9. The reactant in a chemical equation with a greater amount than necessary to react completely with the limiting reactant.
Down
  1. 3.01x10^24 molecules of NH3 is equal to how many moles?
  2. formula using the simplest whole-number ratio
  3. shows which elements are in the compound and the actual number of each
  4. process of using a balanced equation to determine the relative masses reactants and products involved in the reaction
  5. ratio of moles from one substance to another.
  6. 22.4 liters is equal to how many moles?
  7. A chemical substance that is present at the beginning of a chemical reaction.
  8. one mole of lithium is equal to how many grams?
  9. 64.0 grams of CH4 is how many moles?

18 Clues: 64.0 grams of CH4 is how many moles? • How many moles are in 160 grams of CH4? • 22.4 liters is equal to how many moles? • formula using the simplest whole-number ratio • ratio of moles from one substance to another. • one mole of lithium is equal to how many grams? • maximum amount of a product that can be given off. • ...

Chemical Reactions 2014-01-09

Chemical Reactions crossword puzzle
Across
  1. addition of oxygen to a substance in a chemical reaction
  2. and acrylic are examples
  3. new subtances formed in a chemical reaction
  4. substances we start with before a chemical reaction
  5. synthetic material useful for making windows
  6. dioxide/a gas which turns lime water milky
  7. gas which burns with a squeaky pop when ignited with a lighted splint
  8. carbonate/limestone contains this substance
Down
  1. reactive gas that makes up about 21% of the air
  2. chemical reaction that occurs between a fuel and oxygen in the air
  3. formed in reactions with oxygen
  4. reaction that gives out heat

12 Clues: and acrylic are examples • reaction that gives out heat • formed in reactions with oxygen • dioxide/a gas which turns lime water milky • new subtances formed in a chemical reaction • carbonate/limestone contains this substance • synthetic material useful for making windows • reactive gas that makes up about 21% of the air • ...

week 6 2025-02-05

week 6 crossword puzzle
Across
  1. ลิแกนด์
  2. อิเล็กตรอนเวเลนซ์
  3. กัมมันตรังสี
  4. เซลล์อิเล็กโทรเคมี
  5. คีเลชัน
  6. ออร์บิทัลโมเลกุล
  7. อุณหพลศาสตร์
  8. เอนโทรปี
  9. สมดุลเคมี
Down
  1. โครงสร้างเรโซแนนซ์
  2. สโตอิชิโอเมทรี
  3. คู่อิเล็กตรอนโดดเดี่ยว
  4. ผลผลิตเชิงทฤษฎี
  5. ไอออนเชิงซ้อน
  6. mechanism กลไกปฏิกิริยา
  7. เอนทัลปี
  8. จลนพลศาสตร์ของปฏิกิริยา
  9. ครึ่งชีวิต
  10. แรงระหว่างโมเลกุล
  11. energy พลังงานกระตุ้น

20 Clues: ลิแกนด์ • คีเลชัน • เอนทัลปี • เอนโทรปี • สมดุลเคมี • ครึ่งชีวิต • กัมมันตรังสี • อุณหพลศาสตร์ • ไอออนเชิงซ้อน • สโตอิชิโอเมทรี • ผลผลิตเชิงทฤษฎี • ออร์บิทัลโมเลกุล • อิเล็กตรอนเวเลนซ์ • แรงระหว่างโมเลกุล • โครงสร้างเรโซแนนซ์ • เซลล์อิเล็กโทรเคมี • energy พลังงานกระตุ้น • คู่อิเล็กตรอนโดดเดี่ยว • mechanism กลไกปฏิกิริยา • จลนพลศาสตร์ของปฏิกิริยา

TTS KELOMPOK 9 2025-12-01

TTS KELOMPOK 9 crossword puzzle
Across
  1. Chemical reaction that releases heat?
  2. Substance with a pH less than 7?
  3. Chemical bond between atoms?
  4. Chemical element with the symbol O?
  5. Process of changing from solid to gas?
  6. The smallest particle of an element that still has the properties of that element?
  7. Substance that speeds up a chemical reaction?
  8. Subatomic particle with a positive charge?
  9. Chemical bond between ions?
  10. Chemical element with the symbol H?
Down
  1. Process of changing from gas to liquid?
  2. Substance with a pH greater than 7?
  3. Process of changing from liquid to gas?
  4. Homogeneous mixture of two or more substances?
  5. Chemical element with the symbol C?

15 Clues: Chemical bond between ions? • Chemical bond between atoms? • Substance with a pH less than 7? • Substance with a pH greater than 7? • Chemical element with the symbol O? • Chemical element with the symbol C? • Chemical element with the symbol H? • Chemical reaction that releases heat? • Process of changing from solid to gas? • Process of changing from gas to liquid? • ...

Ch8 Chemical Equations and Reactions 2022-01-10

Ch8 Chemical Equations and Reactions crossword puzzle
Across
  1. when a single compound reacts to form two or more simple substances
  2. a list of elements organized by how they undergo certain chemical reactions
  3. when two ions from different compounds exchange places in an aqueous solution which forms two new compounds
  4. a reaction which combines with oxygen, releasing lots of energy in the form of light and hear
  5. represents the identities and relative molecular amounts in a chemical reaction.
  6. both the products and reactants of a chemical reaction using formulas or symbols
  7. using electric current to decompose a substance
  8. two or more substances combine to make one new compound
Down
  1. where only one element replaces another element in a compound
  2. represented by two arrow pointing in opposite directions which show the products reforming the original reactants
  3. a solid that is formed from a chemical reaction in solution and that separates from the solution
  4. an equation that is represented by using words in a chemical reaction
  5. the whole number that appears in front of a formula in a chemical equation

13 Clues: using electric current to decompose a substance • two or more substances combine to make one new compound • where only one element replaces another element in a compound • when a single compound reacts to form two or more simple substances • an equation that is represented by using words in a chemical reaction • ...

Chemistry Unit 5 2024-12-05

Chemistry Unit 5 crossword puzzle
Across
  1. this reaction always produces water and Carbon Dioxide
  2. the amount of a certain compound in a chemical equation
  3. the number of atoms of a certain element in a compound
  4. a type of bond where an electron is SHARED
  5. the substance(s) that are produced in a chemical reaction
  6. in this reaction, the anions "trade places"
  7. the starting substance(s) that undergo a change in a chemical reaction
Down
  1. a type of bond where an electron is TRANSFERRED
  2. in this reaction, two or more atoms are combined
  3. in this reaction, a compound is broken down into separate atoms
  4. in this reaction, a single atom is substituted for an atom in a compound
  5. a charged particle
  6. a substance made up of two or more elements that are bonded together
  7. a type of element that is never on its own, and is always bonded to another like atom

14 Clues: a charged particle • a type of bond where an electron is SHARED • in this reaction, the anions "trade places" • a type of bond where an electron is TRANSFERRED • in this reaction, two or more atoms are combined • this reaction always produces water and Carbon Dioxide • the number of atoms of a certain element in a compound • ...

Chemistry 2024-04-01

Chemistry crossword puzzle
Across
  1. _a unit of measurement
  2. a number or symbol
  3. distinguishing symbol
  4. reactant_an ingredient or reactant in a chemical reaction that produces the least amount of the product.
  5. mass_ the mass in grams of one mole of a substance
  6. equation_symbolic representations of chemical reactions
  7. equation_An equation that has equal number of atoms of each element on both the sides of the equation
  8. _a substance that takes part in and undergoes change during a reaction.
Down
  1. _a substance that is present at the end of a chemical reaction
  2. reaction_the processes by which chemicals interact to form new chemicals with different compositions
  3. ratio_the ratio of the initial mass to final mass,
  4. _the quantitative study of the reactants and products involved in a chemical reaction
  5. ratio_a conversion factor that relates the amounts in moles of any two substances in a chemical reaction
  6. reactant_a substance that is not wholly consumed or entirely reacted in a chemical reaction
  7. number_ It permits one to compare the different atoms or molecules of given substances

15 Clues: a number or symbol • distinguishing symbol • _a unit of measurement • ratio_the ratio of the initial mass to final mass, • mass_ the mass in grams of one mole of a substance • equation_symbolic representations of chemical reactions • _a substance that is present at the end of a chemical reaction • _a substance that takes part in and undergoes change during a reaction. • ...

The Reaction Junction 2025-04-30

The Reaction Junction crossword puzzle
Across
  1. Equation Different number of atoms; not yet corrected.
  2. Displacement Two compounds exchange parts to form new ones.
  3. A substance loses oxygen or gains hydrogen.
  4. Substances you start with before the reaction happens.
  5. Rancidity Oils or fats in food go bad due to air (oxygen).
  6. New substances formed after the reaction.
  7. Equation A way to show a reaction using symbols and formulas.
  8. A solid forms and settles from a liquid reaction.
  9. Reaction Both oxidation and reduction happen in the same reaction.
Down
  1. Equation Same number of each type of atom on both sides.
  2. Slow damage of metals (like rusting).
  3. Decomposition Reaction One substance breaks into two or more.
  4. A substance gains oxygen or loses hydrogen.
  5. Reaction A change where new substances are formed.
  6. Reaction Two or more things combine to make one product.
  7. Reaction A more reactive element replaces a less reactive one.

16 Clues: Slow damage of metals (like rusting). • New substances formed after the reaction. • A substance loses oxygen or gains hydrogen. • A substance gains oxygen or loses hydrogen. • A solid forms and settles from a liquid reaction. • Reaction A change where new substances are formed. • Equation Different number of atoms; not yet corrected. • ...

ashley cutcher-ch 13 2016-10-07

ashley cutcher-ch 13 crossword puzzle
Across
  1. the process by which a reactant loses one or more electrons
  2. energy transfers from reactants to surroundings
  3. the process by which a reactant gains one or more electrons
  4. the minimum energy required in order for a chemical reaction to proceed
  5. a measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
  6. description of a substance that can behave as either an acid or a base
  7. a substance that is the result of the chemical change
Down
  1. A substance that donates hydrogen ions
  2. A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen
  3. a reaction between an acid and a base
  4. a substance that undergoes a chemical change
  5. the deterioration of a metal, typically caused by atmospheric oxygen
  6. an ionic compound commonly formed from the reaction between an acid and a base
  7. energy is transferred to reactants from surroundings
  8. a measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration

15 Clues: a reaction between an acid and a base • A substance that donates hydrogen ions • a substance that undergoes a chemical change • energy transfers from reactants to surroundings • energy is transferred to reactants from surroundings • a substance that is the result of the chemical change • the process by which a reactant loses one or more electrons • ...

Chemistry Crossword Puzzle 2025-03-26

Chemistry Crossword Puzzle crossword puzzle
Across
  1. We must always keep our classroom __________
  2. The process in which a substance loses electrons
  3. A chemical reaction that absorbs energy from its surroundings
  4. __________ peroxide is commonly used as a bleaching agent which releases oxygen during oxidation
  5. In respiration, _______ is oxidized to produce energy, carbon dioxide, and water
  6. _________ is a classic example of oxidation, where iron reacts with oxygen in the presence of water
  7. A type of chemical reaction in which electrons are transferred between two substances
Down
  1. A chemical reaction that releases energy from its surroundings
  2. In silver ________,silver reacts with sulfur compounds in the air forming silver sulfide
  3. The positive electrode that attracts negative ions from the electrolyte
  4. The negative electrode that attracts positive ions from the electrolyte
  5. The number one rule in our classroom is to ________ one another
  6. The process in which a substance gains electrons
  7. The process that uses an electric current to drive a non-spontaneous chemical reaction.
  8. When fuels like _________ burn, they react with oxygen in the air, undergoing redox reaction

15 Clues: We must always keep our classroom __________ • The process in which a substance loses electrons • The process in which a substance gains electrons • A chemical reaction that absorbs energy from its surroundings • A chemical reaction that releases energy from its surroundings • The number one rule in our classroom is to ________ one another • ...

Unit 2 Test Review 2024-10-29

Unit 2 Test Review crossword puzzle
Across
  1. - A pigment found in chloroplasts that absorbs light energy.
  2. - An unused product in a chemical reaction.
  3. - when heat is released during a chemical reaction (reaction gets hotter).
  4. - when heat is absorbed during a chemical reaction (reaction gets colder).
  5. - Two or more atoms that have chemically combined.
  6. - The simplest form of a substance, there are 118 different types.
  7. - A substances' resistance to flow.
Down
  1. - Two or more atoms of different elements that have chemically combined (bonded).
  2. - This type of molecule is made up of repeating monomers linked in a chain.
  3. - A type of change where the form or shape of matter changes.
  4. - Anything that has mass and takes up space.
  5. - A type of change that results in a new substance.
  6. - The process of converting glucose into energy without oxygen.
  7. - One end of a molecule has a slight positive charge and one end has a slight negative charge.

14 Clues: - A substances' resistance to flow. • - An unused product in a chemical reaction. • - Anything that has mass and takes up space. • - Two or more atoms that have chemically combined. • - A type of change that results in a new substance. • - A pigment found in chloroplasts that absorbs light energy. • - A type of change where the form or shape of matter changes. • ...

Chemistry Final 2024-12-12

Chemistry Final crossword puzzle
Across
  1. Valence electrons for Aluminum
  2. Elements that are usually brittle, non-conductive, and lack metallic luster
  3. An atom or molecule with a net electrical charge due to the loss or gain of electrons
  4. A reaction where one element replaces another in a compound
  5. A type of chemical bond formed between oppositely charged ions
  6. Atoms of the same element with different numbers of neutrons
  7. A proposed explanation based on evidence, used as a starting point for further investigation
  8. The sum of protons and neutrons in an atom's nucleus
  9. A type of chemical bond where atoms share electrons
  10. The number of valence electrons Bromine wants to gain
  11. Elements with properties intermediate between metals and nonmetals
  12. The tendency of an atom to attract electrons in a chemical bond
  13. A neutral subatomic particle found in the nucleus of an atom
  14. A group of atoms bonded together, representing the smallest unit of a chemical compound
  15. A negatively charged subatomic particle that orbits the nucleus of an atom
Down
  1. Elements that are typically shiny, conductive, and malleable
  2. A chemical reaction where two or more substances combine to form a single product
  3. The process of removing an electron from an atom to form an ion
  4. The distance from the nucleus of an atom to the outermost electron
  5. A reaction where two compounds exchange ions to form two new compounds
  6. A pure substance made of only one type of atom
  7. The number of protons in the nucleus of an atom, defining the element
  8. The group with two valence electrons
  9. The electrical property of a particle, which can be positive, negative, or neutral
  10. A positively charged subatomic particle found in the nucleus of an atom
  11. A chemical reaction involving oxygen that produces energy in the form of heat and light
  12. The smallest unit of matter that retains the properties of an element
  13. A chemical reaction where a single compound breaks down into two or more simpler substances
  14. The electrons in the outermost shell of an atom, involved in chemical bonding
  15. A mixture where the components are not uniform and can be distinguished easily

30 Clues: Valence electrons for Aluminum • The group with two valence electrons • A pure substance made of only one type of atom • A type of chemical bond where atoms share electrons • The sum of protons and neutrons in an atom's nucleus • The number of valence electrons Bromine wants to gain • A reaction where one element replaces another in a compound • ...

Chemical reactions and equations 2021-08-27

Chemical reactions and equations crossword puzzle
Across
  1. OXIDATION OF FATS AND OILS CONTAINING FOOD ITEMS.
  2. ______________CAN NEITHER BE CREATED NOR DESTROYED DURING A CHEMICAL REACTION.
  3. LOSS OF ELECTRONS
  4. PROCESS OF EATING UP OF METALS IN THE PRESENCE OF AIR,MOISTURE
  5. ADDITION OF HYDROGEN
  6. CLASS OF COMPOUNDS TO WHICH BHA AND BHT BELONGS
Down
  1. SUBSTANCES PRODUCED AFTER A CHEMICAL REACTION IS COMPLETED
  2. SILVER CHLORIDE UNDERGOES _________________ IN PRESENCE OF SUNLIGHT
  3. REACTION OTHER NAME FOR DOUBLE DISPLACEMENT REACTION
  4. SUBSTANCES WHICH TAKE PART IN A CHEMICAL REACTION
  5. REACTION IN WHICH BOTH REDUCTION AND OXIDATION PROCESSES TAKES PLACE SIMULTANEOUSLY.
  6. DIOXIDE BROWN GAS EVOLVED ON HEATING OF COPPER NITRATE IS _______________

12 Clues: LOSS OF ELECTRONS • ADDITION OF HYDROGEN • CLASS OF COMPOUNDS TO WHICH BHA AND BHT BELONGS • OXIDATION OF FATS AND OILS CONTAINING FOOD ITEMS. • SUBSTANCES WHICH TAKE PART IN A CHEMICAL REACTION • REACTION OTHER NAME FOR DOUBLE DISPLACEMENT REACTION • SUBSTANCES PRODUCED AFTER A CHEMICAL REACTION IS COMPLETED • ...

chapter 2 vocab 2023-09-20

chapter 2 vocab crossword puzzle
Across
  1. the basic building block of all things
  2. when to molecules stick together
  3. a chemical reaction involving the changing of the atoms
  4. to cause a solute to pass into a solution
  5. chemical substances that can donate electrons and release hydrogen
  6. group of organic compounds including fats, oils, and horomones
  7. a molecule that has charge on only one side and cannot be cancelled out
  8. the lack of thermodynamic ability in an object
  9. the change of the physical properties in a subject
  10. the measure of hotness or coldness in an object; measured in degrees
  11. the substance that acts as a catalyst in living organisms
  12. a group of 2 or more atoms
  13. the substance that slows down the rate of the catalyst
  14. the movement of particles from a high concentrate substance to a low concentrate substance
  15. molecules that combine to form protein
Down
  1. a chemical substance made up of 2 elements
  2. the sticking of molecules together
  3. the basic structural unit of nucleic acids
  4. a large group of organic compounds that include sugars, starch, and cellulose; used as structure and storage in the body
  5. the property of molecules attracting one another
  6. a substance that contains hydrogen that can donate a proton to another substance
  7. the substance that strengthens the chemical reaction but does not undergo any chemical change itself
  8. a substance that cant be broken down into another substance
  9. the result of a chemical reaction
  10. glucose and fructose bound together
  11. the ability to do work
  12. compounds to where carbon atoms are covalently bonded to hydrogen, oxygen, or nitrogen
  13. anything that takes up space and has mass
  14. the substances that participate in a chemical reaction

29 Clues: the ability to do work • a group of 2 or more atoms • when to molecules stick together • the result of a chemical reaction • the sticking of molecules together • glucose and fructose bound together • the basic building block of all things • molecules that combine to form protein • to cause a solute to pass into a solution • anything that takes up space and has mass • ...

Anh Nguyen 2019-06-10

Anh Nguyen crossword puzzle
Across
  1. in the modern model of the atom,each energy level is divided into smaller sublevels or orbitals
  2. is any solution in which water is (H2O) is solvent
  3. also known as a molecular ion, is a charged chemical species composed of 2 or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit
  4. form when electrons are lost, charge is + because there are more protons than electrons
  5. are the starting materials in a chemical reaction. Reactant undergo change in which chemical reaction. Reactant undergo change in which chemical bonds are broken and new ones are formed to make products
  6. states that mass in a isolated system is neither created nor destroyed by chemical reactions or physical transformations
  7. 2 compounds exchange ions and form 2 new compounds
  8. is a constant term related to the properties of a product
  9. a liquid or gel that contains ions and can be decomposed by electrolysis, that present in battery
  10. a carbon based compound reacts with oxygen to carbon dioxide (CO2) and water (products)
Down
  1. are atoms or group s of atoms with a charge (+ or -). Ions are formed when atom or group of atoms either gain or lose electron
  2. form when electrons are gained charge is (-) because there are more electron than protons
  3. a chemical equation that does not indicate the relative amounts of the reactants and products
  4. the temperature at which a solid substance melts or fuses
  5. is an equation for a chemical reaction in which the number of atoms for each element in the reaction
  6. low melting points and boiling points, non-electrolytes
  7. a single element reacts with a compound and displaces another elements from the compound
  8. (g)= gas, (l)= liquid, (s)= solid, (aq)= aqueous
  9. the electrons move in definite "orbit" or energy level (n) around the nucleus
  10. 2 or more substances (reactants) breaks down into 2 or more simpler substances (products)
  11. is the symbolic representation of a chemical reaction in the form of symbols and formula, wherein the reaction entities are given on the left hand side and the product entities on the right hand side
  12. is an outer shell electron that is associated with atom
  13. type of chemical bond that involves the electronic attraction
  14. The number or expression resulting from the multiplication together of two or more numbers or expressions
  15. a group of atoms bonded together

25 Clues: a group of atoms bonded together • (g)= gas, (l)= liquid, (s)= solid, (aq)= aqueous • is any solution in which water is (H2O) is solvent • 2 compounds exchange ions and form 2 new compounds • low melting points and boiling points, non-electrolytes • is an outer shell electron that is associated with atom • the temperature at which a solid substance melts or fuses • ...

SI Lecture 3 2023-01-24

SI Lecture 3 crossword puzzle
Across
  1. ************** bonds; bonds between atoms of different molecules
  2. dissolved substance
  3. binding together of like molecules
  4. molecules containing both hydrophilic and hydrophobic regions
  5. dissolving agent
  6. molecules with polar covalent bonds that are attracted to water
  7. ******* solution; a solution where water is the solvent
  8. *********** effect; tendency of nonpolar substances to aggregate & exclude water molecules
  9. number of molecules in an area; mass per unit volume
Down
  1. the number of moles of solute per liter of solution
  2. molecules with nonpolar covalent bonds that are more attracted to each other
  3. the starting molecules of a chemical reaction
  4. liquid consisting of a homogeneous mixture of 2+ substances
  5. ************** bonds; bonds between atoms within a molecule
  6. Equilibrium - occurs when the rate of forward reaction is equal to the rate of the reverse reaction
  7. binding together of different molecules
  8. the final molecules of a chemical reaction

17 Clues: dissolving agent • dissolved substance • binding together of like molecules • binding together of different molecules • the final molecules of a chemical reaction • the starting molecules of a chemical reaction • the number of moles of solute per liter of solution • number of molecules in an area; mass per unit volume • ...

REVIEW: CHEMICAL REACTIONS AND CONSERVATION OF MASS 2019-01-19

REVIEW: CHEMICAL REACTIONS AND CONSERVATION OF MASS crossword puzzle
Across
  1. a chemical equation that has the same number and kinds of atoms on both sides
  2. kind of substance that is made by humans; it come from natural substances
  3. substance that forms as a result of a chemical reaction
  4. a solid that sometimes forms during a chemical reaction; it is a sign that a chemical reaction has occurred
  5. substance that exists before a chemical reaction begins
  6. a process that produces chemical change, resulting in new substances that have properties different from those of the original substances
Down
  1. a kind of chemical reaction in which more heat energy is absorbed to break the reactants' bonds, than is released in forming the products; temperature goes down
  2. this law states that mass (atoms) cannot be created or destroyed in a chemical reaction
  3. shorthand form for writing what reactants are used and what products are formed in a chemical reaction
  4. a kind of chemical reaction in which more heat energy is released when the products are formed, than is used to break the reactants' bonds; temperature goes up

10 Clues: substance that forms as a result of a chemical reaction • substance that exists before a chemical reaction begins • kind of substance that is made by humans; it come from natural substances • a chemical equation that has the same number and kinds of atoms on both sides • this law states that mass (atoms) cannot be created or destroyed in a chemical reaction • ...

Chemisty Vocab 2023-10-27

Chemisty Vocab crossword puzzle
Across
  1. Easily set on fire
  2. Any substance which is capable of dissolving one or several substance, creates a solution
  3. Acid A colorless liquid with a unpleasant Oder ( Like rotten eggs)
  4. Reaction Any chemical reaction that absorbs heat from its environment
  5. Liquids not flaming a homogeneous mixture when added together
  6. Liquids forming a homogeneous mixture when added together
  7. reaction that releases energy by light or heat
  8. Data Sheet Informational document prepared by the manufacturer or importer of a hazardous chemical
  9. Solution Solution in which the hydrogen-ion concentration is greater than the hydroxide-ion concentration
Down
  1. Solution A solution of a soluble base with greater than 7
  2. Chemical substance changes because of the addition of oxygen
  3. Having a tendency to mix with, dissolve in or be whetted by water
  4. Reaction
  5. Having the potential to cause cancer
  6. Able to catch fire and burn easily
  7. Identification of the substances of which matter is composed
  8. Tending to combine with or dissolve in lipids or fats
  9. A measure of how acidic/basic water is
  10. Detergent that can reduce surface tension of a liquid and allow it to foam or penetrate solids

19 Clues: Reaction • Easily set on fire • Able to catch fire and burn easily • Having the potential to cause cancer • A measure of how acidic/basic water is • reaction that releases energy by light or heat • Tending to combine with or dissolve in lipids or fats • Solution A solution of a soluble base with greater than 7 • Liquids forming a homogeneous mixture when added together • ...

chapter 2: chemistry of life vocab 2018-04-12

chapter 2: chemistry of life vocab crossword puzzle
Across
  1. / forms through the electrical force between oppositely charged ions.
  2. / the substance that is present in the greater amount and that dissolves another substance.
  3. / change substances into different substances by breaking and forming chemical bonds.
  4. / catalysts for chemical reactions in living things.
  5. / a polymer made of monomers called amino acids.
  6. / the amount of energy that will break a bond between two atoms.
  7. / chains of carbon atoms bonded to hydrogen atoms.
  8. / a chemical reaction absorbs more energy than it releases.
  9. / a chemical reaction releases more energy than it absorbs.
  10. / molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
  11. / a substance made of atoms of different elements bonded together in a certain ratio.
  12. / two or more atoms held together by covalent bonds.
  13. / a substance that dissolves in a solvent.
  14. / a macromolecule made of many monomers bonded together.
Down
  1. / an ionic bond compound of Na + and Cl-.
  2. / forms when atoms share a pair of electrons.
  3. / molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches.
  4. / an atom that has gained or lost one or more electrons.
  5. / one particular type of atom, and it cannot be broken down into a simpler substance by ordinary chemical means.
  6. / the specific reactants that an enzyme acts one.
  7. / reached when both the reactants and products are made at the same rate.
  8. / compounds that remove H+ ions from a solution.
  9. / The smallest basic unit of matter.
  10. / polymers that are made up of monomers called nucleotides.
  11. / a homogeneous mixture.
  12. / the attraction among molecules stick to each other.
  13. / nonpolar molecules that include fats, oils, and cholesterol.
  14. / the substances made by a chemical reaction.
  15. / an attraction between a slightly positive hydrogen atom and a slightly negative atom.
  16. / a substance that decreases the activation energy needed to start a chemical reaction, and increases the rate of the chemical reaction.
  17. / a compound that releases a proton when it dissolves in water.
  18. / each subunit in the complete molecule.

32 Clues: / a homogeneous mixture. • / The smallest basic unit of matter. • / each subunit in the complete molecule. • / an ionic bond compound of Na + and Cl-. • / a substance that dissolves in a solvent. • / forms when atoms share a pair of electrons. • / the substances made by a chemical reaction. • / a polymer made of monomers called amino acids. • ...

Science Crossword 2014-11-06

Science Crossword crossword puzzle
Across
  1. positively charged particle in the nucleus of an atom
  2. change of state from liquid to gas
  3. anything that has mass and takes up space
  4. an experiment in which all reactants and all products of a chemical reaction are accounted for
  5. shiny, malleable ductile element that conducts electricity
  6. combination of symbols that represent a compound;the formula identifies the element in the compound and the amount of each element
  7. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
  8. slow chemical change that occurs when oxygen in the air reacts with metal
  9. the smallest part of an element that is representative of the 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
  10. group of atoms acting as one
  11. neutral particle in the nucleus of an atom
  12. horizontal row of elements in the periodic table
  13. group 18 element in the periodic table; the most stable and unreactive elements
  14. catalyst involved in chemical reactions in living things
Down
  1. new substance produced in a chemical reaction between reactants
  2. pure substance formed when non-metals combine
  3. number of protons in the nucleus of one atom of an element
  4. vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a family
  5. invisible negatively charged particle that orbits the nucleus of an atom
  6. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  7. substance that helps a chemical reaction to proceed more quickly
  8. cloudy mixture in which tiny particles of one substance are held within another and particles cannot seperate
  9. 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
  10. group 17 elements in the periodic table; the most reactive non-metals
  11. element that has both metallic and non-metallic properties

25 Clues: group of atoms acting as one • change of state from liquid to gas • anything that has mass and takes up space • neutral particle in the nucleus of an atom • pure substance formed when non-metals combine • horizontal row of elements in the periodic table • positively charged particle in the nucleus of an atom • catalyst involved in chemical reactions in living things • ...

Basic Chemistry 2021-01-20

Basic Chemistry crossword puzzle
Across
  1. Anything less than 7 on the PH Scale
  2. One of the Organic Molecules. Important for structure and metabolism. Contains Nitrogen
  3. (Starch, Cellulose, Glycogen) Formed from Monosaccharides
  4. A substance taking part in a chemical reaction.
  5. Anything above 7 on the PH scale (Alkaline)
  6. any of a class of sugars whose molecules contain two monosaccharide residues (table sugar)
  7. The Simplest Sugars (Ex: glucose) Basic units of Carbohydrates
  8. are the species formed from chemical reactions
  9. is a process that changes or transforms one type of chemical into another.
  10. is the generic term for any disaccharides and monosaccharides
  11. the building block of protein.
  12. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  13. a molecule that can be bonded to other identical molecules to form a polymer.
  14. are variants of a particular chemical element which differ in neutron number, but have the same proton count
  15. the substance on which an enzyme acts
Down
  1. a complex organic substance present in living cells, especially DNA or RNA. composed of many nucleotide
  2. Opposite Charged ions are held together by force of electrical attract of oppositely charged ions made by transfer of electrons
  3. is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds called polymers
  4. Helps make sure PH doesn't change
  5. Loss of water to combine molecules
  6. The energy needed to initiate a reaction
  7. any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples
  8. is a chemical reaction in which acid and a base react quantitatively with each other
  9. formed by sharing of electrons
  10. One of Four Organic Molecules. Composed of 3 fatty acids and a glycerol molecule
  11. The building blocks/Monomers for Nucleic Acid
  12. One of four Organic Molecules. It is our main source of energy
  13. Adding water to break apart large molecules
  14. A protein catalyst that increases the rate pf a chemical reaction by lowering activation energy

29 Clues: formed by sharing of electrons • the building block of protein. • Helps make sure PH doesn't change • Loss of water to combine molecules • Anything less than 7 on the PH Scale • the substance on which an enzyme acts • The energy needed to initiate a reaction • Anything above 7 on the PH scale (Alkaline) • Adding water to break apart large molecules • ...

Periodic table 2022-12-07

Periodic table crossword puzzle
Across
  1. Run up and down
  2. new solid is formed
  3. Left side
  4. new or different color is formed
  5. smallest part in an element
  6. positive charge and in nucleus
  7. New substance with new properties
  8. not caused by outside force
  9. Left or right
  10. no new substance made
  11. on type of atom
  12. spark or emit glowing for chemical reaction
Down
  1. Tells you how many energy levels the atom has
  2. in electron cloud and negative charge
  3. Determine the reactivity(Stability)
  4. Both properties of metal and nonmetal
  5. Right side
  6. Found on left side
  7. negative charge and in nucleus
  8. bubbling or steaming for chemical reaction

20 Clues: Left side • Right side • Left or right • Run up and down • on type of atom • Found on left side • new solid is formed • no new substance made • smallest part in an element • not caused by outside force • positive charge and in nucleus • negative charge and in nucleus • new or different color is formed • New substance with new properties • Determine the reactivity(Stability) • ...

Chemical changes and reactions 2025-03-14

Chemical changes and reactions crossword puzzle
Across
  1. A process in which substances change to form new substances.
  2. A gas that makes a squeaky pop sound when tested with a burning splint.
  3. A visible sign that a chemical reaction has taken place.
  4. Substances that undergo change in a chemical reaction.
Down
  1. Substances formed in a chemical reaction.
  2. A gas that turns limewater milky.
  3. A small unit of matter, used in a model to explain chemical reactions.
  4. A sign of a chemical reaction, sometimes observed as bubbles.
  5. An insoluble solid formed in a chemical reaction between two solutions.
  6. A gas that relights a glowing splint.

10 Clues: A gas that turns limewater milky. • A gas that relights a glowing splint. • Substances formed in a chemical reaction. • Substances that undergo change in a chemical reaction. • A visible sign that a chemical reaction has taken place. • A process in which substances change to form new substances. • A sign of a chemical reaction, sometimes observed as bubbles. • ...

Chemistry Crossword 2017-11-09

Chemistry Crossword crossword puzzle
Across
  1. the degree to which a specified material conducts electricity, calculated as the ratio of the current density in the material to the electric field that causes the flow of current. It is the reciprocal of the resistivity
  2. In chemistry, an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions
  3. the total number of protons and neutrons in a nucleus
  4. the action of deposing someone, especially a monarch
  5. 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
  6. The definition of endothermic is a chemical reaction that is accompanied by the absorption of heat, or an organism that generates heat to maintain its temperature. A chemical reaction that works only if heat is absorbed is an example of a reaction that would be described as endothermic
  7. 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
  8. any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table. They are reactive nonmetallic elements that form strongly acidic compounds with hydrogen, from which simple salts can be made
  9. the process of corroding metal, stone, or other materials
  10. A system where the product can escape
Down
  1. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  2. water that collects as droplets on a cold surface when humid air is in contact with it
  3. An aqueous solution is a solution in which the solvent is water
  4. a homogeneous, noncrystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle and cannot be separated out by ordinary filtering or centrifuging like those in a suspension
  5. Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms
  6. mechanical mixture n. A heterogeneous mixture of particles or masses distinguishable as such under the microscope or separable by filtration. Examples from the Web for mechanical mixture. mechanical mixture is only the suspension of the parts of a solid in a fluid
  7. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy
  8. a property or characteristic of a substance that is observed during a reaction in which the chemical composition
  9. very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides
  10. a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition
  11. a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  12. the degree of compactness of a substance
  13. the mass of an atom of a chemical element expressed in atomic mass units
  14. the basic unit of a chemical element
  15. change of state from a solid to a liquid

25 Clues: the basic unit of a chemical element • A system where the product can escape • the degree of compactness of a substance • change of state from a solid to a liquid • the action of deposing someone, especially a monarch • the total number of protons and neutrons in a nucleus • the process of corroding metal, stone, or other materials • ...

Biomolecules Vocab 2024-04-30

Biomolecules Vocab crossword puzzle
Across
  1. Fatty, waxy, or oily compounds that are soluble in organic solvents and insoluble in water.
  2. The result of combining reactants with each other chemically
  3. A chemical reaction in which water is used to break down chemical bonds between two substances
  4. Large molecules created by chemically linking a series of building blocks.
  5. Large biomolecules that play essential roles in all cells and viruses.
  6. Atoms or small molecules that bond together to form more complex structures such as polymers.
  7. Sugar molecules
  8. A sugar that has 5 carbon atoms and 4 oxygen atoms in each molecule and is part of DNA
  9. The region of an enzyme where substrate molecules bind and go through a chemical reaction.
  10. A chemical compound found in living organisms
Down
  1. A molecule that has the chemical properties of a base and also contains nitrogen
  2. Small molecules that are the building blocks of proteins
  3. The base material that processing is conducted on
  4. The building blocks for all of the fat in our bodies and the fat that we eat
  5. The raw materials that are used to form products
  6. A molecule consisting of amino acids (The base of most body structures)
  7. The least amount of energy required to activate atoms so that they can undergo chemical transformation or physical transport.
  8. A nonmetallic element with the atomic number 6 that forms compounds with a lot of other elements and is a constituent of organic compounds in all known living tissues.
  9. A biological catalyst that is almost always a protein
  10. A substance that can speed up a chemical reaction, without being part of the designated reaction.

20 Clues: Sugar molecules • A chemical compound found in living organisms • The raw materials that are used to form products • The base material that processing is conducted on • A biological catalyst that is almost always a protein • Small molecules that are the building blocks of proteins • The result of combining reactants with each other chemically • ...

CH2 Vocabulary 2022-10-11

CH2 Vocabulary crossword puzzle
Across
  1. A protein that performs different tasks.
  2. Large macromolecules made of amino acids that are responsible for growth and other chemical processes in living organisms.
  3. The transformation of one set of chemicals into another set of chemicals. (two words)
  4. A chemical bond formed when one or more electrons are transferred from one atom to another.
  5. A large number of amino-acids bonded together in a chain, forming part of (or the whole of) a protein molecule.
  6. Fats, oils, or waxes that are used by organisms for activities such as storing energy.
  7. A solution that has a low concentration of H+ ions.
  8. Basic unit of matter.
  9. Macromolecules used for storing and transmitting genetic information.
  10. The set of chemicals leaving a chemical reaction.
  11. Large molecular compounds made of smaller units, or monomers.
  12. Large molecular compounds are built by joining smaller ones together.
Down
  1. Single sugar molecules, such as glucose, fructose, or galactose.
  2. The building blocks of proteins. (two words)
  3. The energy needed to get a chemical reaction started. (two words)
  4. An atom with a net positive or negative charge due to the gain or loss of electrons.
  5. The main source of energy for living organisms.
  6. set of chemicals entering a chemical reaction.
  7. A property of water were water molecules are attracted to different substances.
  8. A property of water where water molecules are attracted to one another.
  9. A measurement system that indicates the concentration of H+ ions in a solution.
  10. A chemical bond formed when electrons are shared between atoms.
  11. Weak acids or bases that react with strong acids or bases to prevent sudden changes in pH.
  12. A solution that has a high concentration of H+ ions.
  13. Single molecular compounds.

25 Clues: Basic unit of matter. • Single molecular compounds. • A protein that performs different tasks. • The building blocks of proteins. (two words) • set of chemicals entering a chemical reaction. • The main source of energy for living organisms. • The set of chemicals leaving a chemical reaction. • A solution that has a low concentration of H+ ions. • ...

Chemistry 2013-04-14

Chemistry crossword puzzle
Across
  1. Acids/ Acids containing a hydrocarbon chain
  2. The way plants breathe
  3. of Energy/ Type of energy
  4. energy/ Energy of light
  5. Reaction/ Product of chemical manipulation
  6. Respiration/Cells Breathing
  7. Become a solution
  8. Used to bring about a chemical reaction naturally
  9. Part of an element
  10. Spreading something more widely
  11. When molecules pass through membranes
Down
  1. Dioxide/ Colorless, orderless gass
  2. only found in plants
  3. A group of bonded atoms
  4. A set definite equal space
  5. Diffusion/ Mentored or helped diffusion.
  6. set a pattern
  7. Multiple elements or factors
  8. What you put in
  9. What something can do

20 Clues: set a pattern • What you put in • Become a solution • Part of an element • only found in plants • What something can do • The way plants breathe • A group of bonded atoms • energy/ Energy of light • of Energy/ Type of energy • A set definite equal space • Respiration/Cells Breathing • Multiple elements or factors • Spreading something more widely • Dioxide/ Colorless, orderless gass • ...

Chemical Reactions 2025-05-01

Chemical Reactions crossword puzzle
Across
  1. A compound made from copper, carbon, and oxygen.
  2. A type of reaction where one substance breaks down into two or more simpler substances (e.g., CaCO₃ → CaO + CO₂).
  3. A change in shape or state that doesn’t create a new substance (like melting).
  4. A number placed in front of a chemical formula to balance a chemical equation (e.g., 2H₂ + O₂ → 2H₂O).
  5. What is the process called when something reacts with oxygen and releases heat and light?
  6. A substance that feels slippery and turns litmus paper blue.
  7. A solution used to test for carbon dioxide.
Down
  1. A substance formed in a chemical reaction.
  2. A change that makes a new substance (like burning wood).
  3. A substance that tastes sour and turns litmus paper red.
  4. What do we call a reaction between an acid and an alkali?
  5. What happens when a solid mixes into a liquid?
  6. The scale we use to measure how acidic or alkaline a substance is.
  7. A small number written below a chemical symbol to show how many atoms of that element are in a compound (e.g., O₂).
  8. A substance that reacts in a chemical reaction.
  9. The short letter or letters used to represent an element (e.g., H for hydrogen).

16 Clues: A substance formed in a chemical reaction. • A solution used to test for carbon dioxide. • What happens when a solid mixes into a liquid? • A substance that reacts in a chemical reaction. • A compound made from copper, carbon, and oxygen. • A change that makes a new substance (like burning wood). • A substance that tastes sour and turns litmus paper red. • ...

Chemical Reactions 2025-11-27

Chemical Reactions crossword puzzle
Across
  1. (of a reaction or process) accompanied by or requiring the absorption of heat.
  2. A distinct compound or substance, especially one which has been artificially created .
  3. Measure (unit) of how acidic or alkaline a substance or mixture is.
  4. a chemical reaction where an acid and a base react to form a salt and water, resulting in a more neutral solution
  5. the process or result of oxidising or being oxidised.
  6. the process used by green plants, algae, and some bacteria to convert light energy into chemical energy
Down
  1. Built on acid(s)
  2. a new substance that is formed as a result of a chemical reaction
  3. (of a reaction or process) accompanied by the release of heat.
  4. a substance that takes part in and undergoes change during a reaction.
  5. The process of burning something
  6. having the properties of an alkali, or containing alkali; having a pH greater than 7.
  7. a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape, and no fixed volume
  8. A chemical process in which substances act mutually on each other and are changed into different substances.
  9. having the properties of an acid, or containing acid; having a pH below 7

15 Clues: Built on acid(s) • The process of burning something • the process or result of oxidising or being oxidised. • (of a reaction or process) accompanied by the release of heat. • a new substance that is formed as a result of a chemical reaction • Measure (unit) of how acidic or alkaline a substance or mixture is. • ...

Chapter 7 Revision Sheet 2016-05-20

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

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

CH2 Vocabulary 2022-10-11

CH2 Vocabulary crossword puzzle
Across
  1. A large number of amino-acids bonded together in a chain, forming part of (or the whole of) a protein molecule.
  2. A protein that performs different tasks.
  3. A type of chemical bond formed when one or more electrons are transferred from one atom to another.
  4. Building blocks of proteins, there are 20 of them. (two words)
  5. This type of chemical bond is formed when electrons are shared between atoms.
  6. A measurement system that indicates the concentration of H+ ions in a solution.
  7. Single molecular compounds.
  8. A solution that has a high concentration of H+ ions.
  9. An atom with a net positive or negative charge due to the gain or loss of electrons.
  10. sugar molecules, such as glycogen or plant starch.
  11. Weak acids or bases that react with strong acids or bases to prevent sudden changes in pH.
  12. set of chemicals leaving a chemical reaction.
  13. The transformation of one set of chemicals into another set of chemicals. (two words)
Down
  1. Macromolecules used for storing and transmitting genetic information. (two words)
  2. Large molecular compounds made of smaller units, or monomers.
  3. A solution that has a low concentration of H+ ions.
  4. The building of polymers using monomers.
  5. Basic unit of matter.
  6. Single sugar molecules, such as glucose, fructose, or galactose.
  7. The energy needed to get a chemical reaction started. (two words)
  8. The main source of energy for living organisms.
  9. Fats, oils, or waxes that are used by organisms for activities such as storing energy.
  10. Large macromolecules made of amino acids that are responsible for growth and other chemical processes in living organisms.
  11. The set of chemicals entering a chemical reaction.

24 Clues: Basic unit of matter. • Single molecular compounds. • The building of polymers using monomers. • A protein that performs different tasks. • set of chemicals leaving a chemical reaction. • The main source of energy for living organisms. • sugar molecules, such as glycogen or plant starch. • The set of chemicals entering a chemical reaction. • ...

Evan Pennington Physical Science Block One 2017-10-09

Evan Pennington Physical Science Block One crossword puzzle
Across
  1. The amount of energy required to pull 2 bonded atoms apart
  2. when two atoms are displaced in a formula
  3. A measure of the acidity of a solution
  4. the deterioration of a metal
  5. a chemcial reaction when there is a net release of energy
Down
  1. when one atom is displaced in a formula
  2. The minimum amount of energy required in order for a chemical reaction to proceed
  3. reaction where oxides are formed
  4. Any substance that increases the rate of a chemical reaction
  5. a chemical reaction where there is a net absorption of energy
  6. the new materials formed in a chemical reaction

11 Clues: the deterioration of a metal • reaction where oxides are formed • A measure of the acidity of a solution • when one atom is displaced in a formula • when two atoms are displaced in a formula • the new materials formed in a chemical reaction • a chemcial reaction when there is a net release of energy • The amount of energy required to pull 2 bonded atoms apart • ...

Chemical reactions crossword 2024-09-24

Chemical reactions crossword crossword puzzle
Across
  1. ___ is absorbed or released during a chemical reaction.
  2. Chemical reactions result in the formation of _____ (2 words)
  3. Reactions involve the rearrangement of ____ in molecules.
  4. What you end up with at the end of a reaction.
  5. Flammability is an example of a ____ property of matter.
  6. Type of reaction when energy is absorbed.
Down
  1. The type of reaction when energy is released.
  2. What you start with at the beginning of a reaction.
  3. Magnetism and mass are examples of _____ properties
  4. Evidence that gas is produced.
  5. An increase in ___ can be a sign that a chemical reaction occured.

11 Clues: Evidence that gas is produced. • Type of reaction when energy is absorbed. • The type of reaction when energy is released. • What you end up with at the end of a reaction. • What you start with at the beginning of a reaction. • Magnetism and mass are examples of _____ properties • ___ is absorbed or released during a chemical reaction. • ...

Chemical Reactions and The Law of Conservation of Mass 2025-05-08

Chemical Reactions and The Law of Conservation of Mass crossword puzzle
Across
  1. a symbolic representation of the changes
  2. the act or instance of making or becoming different.
  3. feeling experienced in response to a situation or event.
  4. the quantity of matter which a body contains
  5. Each element is distinguished by its atomic number
  6. put an end to the existence
  7. the substances that are formed as a result of a chemical reaction
Down
  1. bring into existence
  2. A numerical value placed in front of a chemical formula
  3. Have the same power of other things
  4. the basic unit of a chemical element
  5. the interactions of substances as studied in chemistry.
  6. physical substance in general
  7. Friends and family have strong...
  8. undergoes change during a reaction

15 Clues: bring into existence • put an end to the existence • physical substance in general • Friends and family have strong... • undergoes change during a reaction • Have the same power of other things • the basic unit of a chemical element • a symbolic representation of the changes • the quantity of matter which a body contains • Each element is distinguished by its atomic number • ...

Cell Energy: Cellular Respiration & Photsynthesis 2023-03-14

Cell Energy: Cellular Respiration & Photsynthesis crossword puzzle
Across
  1. Product of photosynthesis that animals require to live.
  2. This separates the reactants and products in a chemical reaction.
  3. The energy molecule produced during cellular respiration.
  4. The source of all energy on earth.
  5. Organelle used to carry out cellular respiration.
  6. The chemical energy food source produced during photosynthesis.
  7. A starting material for a chemical reaction.
  8. Both cellular respiration and photosynthesis are examples of...
Down
  1. Process converting solar energy into a food source.
  2. Process converting food into chemical energy.
  3. Cellular respiration is carried out by both animals and...
  4. An ending material for a chemical reaction.
  5. This is a product of cellular respiration but a reactant of photosynthesis.
  6. Organelle used to carry out photosynthesis.

14 Clues: The source of all energy on earth. • An ending material for a chemical reaction. • Organelle used to carry out photosynthesis. • A starting material for a chemical reaction. • Process converting food into chemical energy. • Organelle used to carry out cellular respiration. • Process converting solar energy into a food source. • ...

Spanish 2021-09-17

Spanish crossword puzzle
Across
  1. - the amount of energy that needs to absorb for a chemical reaction to start.
  2. - reversible chemical reaction. However, no net changes in the amount of reactants and products occur.
  3. - cell of the immune system and also known as leukocytes.
  4. - an enzyme in saliva that breaks down starch into simple sugars.
  5. - a substance that decrease activation energy and increase the rate of chemical reaction.
  6. - lasting attractions between atoms, ions, or molecules that enable the formation of chemical compounds.
  7. - substances that take part in and undergo change during the reactions.
  8. - living things.
  9. - substances that are formed as the result of chemical reactions.
  10. - a measure of how acidic or basic water is.
  11. - act as biological catalysts for chemical reactions in living things.
  12. - polysaccharide that is made and stored by plants.
Down
  1. - can restore the previous situation.
  2. - reactants are converted to one or more different products.
  3. the processor of the body that provides resistance to infection and toxin.
  4. - bacteria, viruses, or other microorganisms that can cause diseases.
  5. - a group of two or more atoms.
  6. - The measure of the amount of a sub-component in a solution.
  7. - monomers that make proteins.
  8. - the specific reactants that an enzyme acts on
  9. - a physical quantity that expresses hot and cold.

21 Clues: - living things. • - monomers that make proteins. • - a group of two or more atoms. • - can restore the previous situation. • - a measure of how acidic or basic water is. • - the specific reactants that an enzyme acts on • - a physical quantity that expresses hot and cold. • - polysaccharide that is made and stored by plants. • ...

Spanish 2021-09-17

Spanish crossword puzzle
Across
  1. - the amount of energy that needs to absorb for a chemical reaction to start.
  2. - reversible chemical reaction. However, no net changes in the amount of reactants and products occur.
  3. - cell of the immune system and also known as leukocytes.
  4. - an enzyme in saliva that breaks down starch into simple sugars.
  5. - a substance that decrease activation energy and increase the rate of chemical reaction.
  6. - lasting attractions between atoms, ions, or molecules that enable the formation of chemical compounds.
  7. - substances that take part in and undergo change during the reactions.
  8. - living things.
  9. - substances that are formed as the result of chemical reactions.
  10. - a measure of how acidic or basic water is.
  11. - act as biological catalysts for chemical reactions in living things.
  12. - polysaccharide that is made and stored by plants.
Down
  1. - can restore the previous situation.
  2. - reactants are converted to one or more different products.
  3. the processor of the body that provides resistance to infection and toxin.
  4. - bacteria, viruses, or other microorganisms that can cause diseases.
  5. - a group of two or more atoms.
  6. - The measure of the amount of a sub-component in a solution.
  7. - monomers that make proteins.
  8. - the specific reactants that an enzyme acts on
  9. - a physical quantity that expresses hot and cold.

21 Clues: - living things. • - monomers that make proteins. • - a group of two or more atoms. • - can restore the previous situation. • - a measure of how acidic or basic water is. • - the specific reactants that an enzyme acts on • - a physical quantity that expresses hot and cold. • - polysaccharide that is made and stored by plants. • ...

Biology 2021-09-17

Biology crossword puzzle
Across
  1. - the specific reactants that an enzyme acts on
  2. - a substance that decrease activation energy and increase the rate of chemical reaction.
  3. - a physical quantity that expresses hot and cold.
  4. - bacteria, viruses, or other microorganisms that can cause diseases.
  5. - the amount of energy that needs to absorb for a chemical reaction to start.
  6. - a group of two or more atoms.
  7. - The measure of the amount of a sub-component in a solution.
  8. - lasting attractions between atoms, ions or molecules that enables the formation of chemical compounds.
  9. - an enzyme in saliva that breaks down starch into simple sugars.
Down
  1. - the processor the body that provide resistance to infection and toxin.
  2. - can restore previous situation.
  3. - substances that are formed as the result of chemical reactions.
  4. - cell of the immune system and also known as leukocyte.
  5. - living things.
  6. - substances that take part in and undergo change during the reactions.
  7. - reactants are converted to one or more different products.
  8. - polysaccharide that is made and stored by plants.
  9. - The reversible chemical reaction. However, no net changes in the amount of reactants and products occurs.
  10. - a measure of how acidic or basic water is.
  11. - act as biological catalyst for chemical reactions in living things.
  12. - monomers that make proteins.

21 Clues: - living things. • - monomers that make proteins. • - a group of two or more atoms. • - can restore previous situation. • - a measure of how acidic or basic water is. • - the specific reactants that an enzyme acts on • - a physical quantity that expresses hot and cold. • - polysaccharide that is made and stored by plants. • ...

Chemical Reactions 2022-02-25

Chemical Reactions crossword puzzle
Across
  1. Uses chemical symbols and formulas to describe a reaction
  2. Reaction where bonds are broken when energy enters the materials
  3. The arrow in a chemical reaction
  4. Reaction requiring oxygen to occur
  5. An atom that loses or gains one or more electrons
  6. Reaction where materials exit or the reaction releases substances
  7. A change where atoms are not rearranged and no new substances are formed
  8. Reaction that puts together compounds into a more complex molecule
Down
  1. Equal number of atoms on both sides of the equation
  2. Indicates the number of atoms in a molecule
  3. Starting materials in a reaction
  4. New substance formed in a reaction
  5. Indicates the number of molecules of a compound
  6. The change in the amount of neutrons in an atom

14 Clues: Starting materials in a reaction • The arrow in a chemical reaction • New substance formed in a reaction • Reaction requiring oxygen to occur • Indicates the number of atoms in a molecule • Indicates the number of molecules of a compound • The change in the amount of neutrons in an atom • An atom that loses or gains one or more electrons • ...

Chemical Reactions and Enzymes 2023-07-26

Chemical Reactions and Enzymes crossword puzzle
Across
  1. A type of reaction that absorbs more energy than it releases.
  2. Substance made as a result of a chemical reaction.
  3. This is the amount of energy needed to be absorbed to start a chemical reaction.
  4. Specific reactants that an enzyme acts upon.
  5. This changes matter into a different substance.
  6. State where reactants and products are made at the same rate.
Down
  1. This is the amount of force needed to break a bond between two atoms.
  2. This is a substance changed during a chemical reaction.
  3. Substance that reduces the activation energy in a chemical reaction.
  4. Catalysts for chemical reactions in living things.
  5. A type of reaction that releases more energy than it absorbs.

11 Clues: Specific reactants that an enzyme acts upon. • This changes matter into a different substance. • Catalysts for chemical reactions in living things. • Substance made as a result of a chemical reaction. • This is a substance changed during a chemical reaction. • A type of reaction that absorbs more energy than it releases. • ...

Ch8 Chemical Equations and Reactions 2022-01-10

Ch8 Chemical Equations and Reactions crossword puzzle
Across
  1. the whole number that appears in front of a formula in a chemical equation
  2. an equation that is represented by using words in a chemical reaction
  3. a solid that is formed from a chemical reaction in solution and that separates from the solution
  4. a reaction which combines with oxygen, releasing lots of energy in the form of light and hear
  5. both the products and reactants of a chemical reaction using formulas or symbols
  6. two or more substances combine to make one new compound
  7. a list of elements organized by how they undergo certain chemical reactions
Down
  1. represents the identities and relative molecular amounts in a chemical reaction.
  2. where only one element replaces another element in a compound
  3. when a single compound reacts to form two or more simple substances
  4. using electric current to decompose a substance
  5. when two ions from different compounds exchange places in an aqueous solution which forms two new compounds
  6. represented by two arrow pointing in opposite directions which show the products reforming the original reactants

13 Clues: using electric current to decompose a substance • two or more substances combine to make one new compound • where only one element replaces another element in a compound • when a single compound reacts to form two or more simple substances • an equation that is represented by using words in a chemical reaction • ...

Ch8 Chemical Equations and Reactions 2022-01-10

Ch8 Chemical Equations and Reactions crossword puzzle
Across
  1. an equation that is represented by using words in a chemical reaction
  2. represented by two arrow pointing in opposite directions which show the products reforming the original reactants
  3. using electric current to decompose a substance
  4. a solid that is formed from a chemical reaction in solution and that separates from the solution
  5. both the products and reactants of a chemical reaction using formulas or symbols
  6. when two ions from different compounds exchange places in an aqueous solution which forms two new compounds
  7. represents the identities and relative molecular amounts in a chemical reaction.
  8. when a single compound reacts to form two or more simple substances
Down
  1. the whole number that appears in front of a formula in a chemical equation
  2. a reaction which combines with oxygen, releasing lots of energy in the form of light and hear
  3. two or more substances combine to make one new compound
  4. a list of elements organized by how they undergo certain chemical reactions
  5. where only one element replaces another element in a compound

13 Clues: using electric current to decompose a substance • two or more substances combine to make one new compound • where only one element replaces another element in a compound • when a single compound reacts to form two or more simple substances • an equation that is represented by using words in a chemical reaction • ...

Unit 4 Bonding 2025-11-05

Unit 4 Bonding crossword puzzle
Across
  1. ability to combine with another substance
  2. a chemical bond between oppositely charged ions
  3. a substance that enters into and is altered in the course of a chemical reaction; on the left of the arrow or yield sign
  4. force that holds together the atoms in a compound
  5. ability to chemically combine
  6. the breaking of bonds to form new substances (called the products)
  7. tells which elements are in a compound and their ratios
Down
  1. chemical bond formed from shared electrons
  2. equation chemical equation with the same number of atoms of each element on both sides of the equation
  3. chemical formulas and symbols that represent a chemical reaction
  4. outer energy level is filled with electrons
  5. regardless of how substances within a closed system are changed, the total mass remains the same
  6. substance that is produced in a chemical reaction from reactants; on the right of the arrow or yield sign
  7. characteristic of a substance that indicates whether it can undergo a chemical change
  8. change of one substance to another substance

15 Clues: ability to chemically combine • ability to combine with another substance • chemical bond formed from shared electrons • outer energy level is filled with electrons • change of one substance to another substance • a chemical bond between oppositely charged ions • force that holds together the atoms in a compound • tells which elements are in a compound and their ratios • ...

Ch. 5 AP Biology 2016-08-03

Ch. 5 AP Biology crossword puzzle
Across
  1. This is the energy of motion.
  2. Cell "taking a drink" of extracellular fluid.
  3. The specific amount of energy required to get a chemical reaction started.
  4. This is a measure of disorder or how dispersed energy is
  5. Small metal ions or molecules that assist enzymes
  6. Situation where solute concentrations are the same on both sides of a membrane
  7. Chemicals in foods that limit oxidation by free radicals.
  8. The acceleration of a chemical reaction by a molecule that is unchanged by the reaction.
  9. A type of regulation where a molecule binds to an enzyme somewhere other than the reaction site.
  10. The capacity to do work.
Down
  1. A disease where the liver becomes hardened, scarred, and filled with fat.
  2. A reaction that will not proceed without energy input.
  3. A reaction that transfers a phosphate group
  4. Type of transport that requires energy expenditure.
  5. Term for a specific molecule that fits the active site of an enzyme.
  6. Cell eating another cell
  7. In living and mechanical things, energy is generally wasted in this form.
  8. Chemical bonds have this type of energy.
  9. Type of diffusion that uses a transport protein but no free energy.
  10. An element that loses electrons becomes
  11. This type of inhibition occurs when the product of a reaction inhibits other enzymes in the series.
  12. The random spreading of molecules without energy input.
  13. The pressure that water exerts against a cell wall in plants.

23 Clues: Cell eating another cell • The capacity to do work. • This is the energy of motion. • An element that loses electrons becomes • Chemical bonds have this type of energy. • A reaction that transfers a phosphate group • Cell "taking a drink" of extracellular fluid. • Small metal ions or molecules that assist enzymes • Type of transport that requires energy expenditure. • ...

Ch8 Chemical Equations and Reactions 2022-01-10

Ch8 Chemical Equations and Reactions crossword puzzle
Across
  1. using electric current to decompose a substance
  2. represents the identities and relative molecular amounts in a chemical reaction.
  3. represented by two arrow pointing in opposite directions which show the products reforming the original reactants
  4. a solid that is formed from a chemical reaction in solution and that separates from the solution
  5. an equation that is represented by using words in a chemical reaction
  6. a reaction which combines with oxygen, releasing lots of energy in the form of light and hear
  7. where only one element replaces another element in a compound
  8. two or more substances combine to make one new compound
Down
  1. both the products and reactants of a chemical reaction using formulas or symbols
  2. when two ions from different compounds exchange places in an aqueous solution which forms two new compounds
  3. when a single compound reacts to form two or more simple substances
  4. a list of elements organized by how they undergo certain chemical reactions
  5. the whole number that appears in front of a formula in a chemical equation

13 Clues: using electric current to decompose a substance • two or more substances combine to make one new compound • where only one element replaces another element in a compound • when a single compound reacts to form two or more simple substances • an equation that is represented by using words in a chemical reaction • ...

Chemical Reactions and Enzymes 2026-03-04

Chemical Reactions and Enzymes crossword puzzle
Across
  1. when an enzyme is changed in shape due to a change in temperature or pH
  2. when the enzyme and the substrate bind to change from substrate to product
  3. the elements or compounds that enter into a chemical reaction
  4. the elements or compounds that are made by a chemical reaction
  5. the substance that the enzyme helps to react. They are substrate specific and can be reused.
  6. the energy needed by the reactants in order to start a reaction. It is required to break bonds in the reactant molecules.
Down
  1. a type of protein that helps speed up chemical reactions. They are specific for just one reaction.
  2. when an enzyme and substrate create a reaction that breaks the substrate into multiple products.
  3. when an enzyme and substrate create a reaction that makes one single product.
  4. is a process that changes one set of molecules into a new set of substances. It occurs when chemical bonds between atoms are broken or formed.
  5. when an enzyme changes shape
  6. a chemical or biological molecule that regulates chemical reactions by slowing down or blocking them from happening
  7. inhibitors a substance that blocks the active site, preventing the enzyme from binding to its substrate
  8. the region of an enzyme to which the substrate binds. (the pocket)

14 Clues: when an enzyme changes shape • the elements or compounds that enter into a chemical reaction • the elements or compounds that are made by a chemical reaction • the region of an enzyme to which the substrate binds. (the pocket) • when an enzyme is changed in shape due to a change in temperature or pH • ...

AQA Paper 1 Selected Topics 2026-02-22

AQA Paper 1 Selected Topics crossword puzzle
Across
  1. A substance that is formed in a chemical reaction.
  2. A pure substance made from only one type of atom.
  3. The organelle where proteins are made in a cell.
  4. A negatively charged particle found in energy levels around the nucleus.
  5. The movement of water through a partially permeable membrane from a dilute to a concentrated solution.
  6. A reaction that transfers energy to the surroundings, usually as heat.
  7. A positively charged particle found in the nucleus of an atom.
  8. Bonding in metals where positive ions are attracted to a sea of delocalised electrons.
  9. A type of bonding formed when electrons are transferred from one atom to another.
Down
  1. The minimum amount of energy needed for a reaction to occur.
  2. Atoms of the same element with the same number of protons but different numbers of neutrons.
  3. A reaction that takes in energy from the surroundings.
  4. A particle with no charge found in the nucleus of an atom.
  5. The movement of particles from an area of high concentration to low concentration.
  6. The organelle in cells where aerobic respiration takes place.
  7. A substance formed when two or more different elements are chemically bonded together.
  8. The basic structural and functional unit of all living organisms.
  9. A type of bonding where atoms share pairs of electrons.
  10. A substance that is used up during a chemical reaction.
  11. The smallest part of an element that can take part in a chemical reaction.

20 Clues: The organelle where proteins are made in a cell. • A pure substance made from only one type of atom. • A substance that is formed in a chemical reaction. • A reaction that takes in energy from the surroundings. • A type of bonding where atoms share pairs of electrons. • A substance that is used up during a chemical reaction. • ...

Enzyme keywords 2026-03-03

Enzyme keywords crossword puzzle
Across
  1. - Organic cofactor
  2. - The process of breaking down large molecules into smaller ones.
  3. - The sum of all the chemical reactions occurring in that cell.
  4. - Molecules that inhibit the activity of enzymes.
  5. - Reaction is one that has a net release of free energy.
  6. - A flexible active site that changes shape, or conforms, to the substrate as they bond together.
  7. - The active site has a set shape.
Down
  1. - The process of making large molecules from smaller ones.
  2. - The energy required to start any reaction.
  3. - A chemical substance that is present at the start of a chemical reaction, and is changed as the chemical reaction proceeds.
  4. - The substances formed as a result of the reaction.
  5. - Reaction is one that absorbs free energy from the surroundings.

12 Clues: - Organic cofactor • - The active site has a set shape. • - The energy required to start any reaction. • - Molecules that inhibit the activity of enzymes. • - The substances formed as a result of the reaction. • - Reaction is one that has a net release of free energy. • - The process of making large molecules from smaller ones. • ...

Chapter 13 Crossword 2017-02-27

Chapter 13 Crossword crossword puzzle
Across
  1. In what water is pH<7?
  2. Reactions in which there is a net release of energy.
  3. The new materials formed in a chemical reaction.
  4. Reactions in which there is net absorption of energy.
  5. Base=____.
  6. The minimum energy required to overcome the initial breaking of bonds in reactants.(2 words)
  7. A chemical that accepts a hydrogen ion.
Down
  1. Law that states matter is neither created nor destroyed. Law of ______ ______.(2 words)
  2. A chemical that donates a hydrogen ion.
  3. Reacting substances in a chemical reaction.
  4. The amount of energy required to pull two bonded atoms apart.(2 words)
  5. A measure of the concentration of hydrogen ions.
  6. Substance that lowers the activation energy of a chemical reaction.
  7. In what water is pH>7?
  8. The power to which 10 is raised.

15 Clues: Base=____. • In what water is pH<7? • In what water is pH>7? • The power to which 10 is raised. • A chemical that donates a hydrogen ion. • A chemical that accepts a hydrogen ion. • Reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • A measure of the concentration of hydrogen ions. • ...

week 6 2025-02-05

week 6 crossword puzzle
Across
  1. แรงระหว่างโมเลกุล
  2. อุณหพลศาสตร์
  3. สมดุลเคมี
  4. สโตอิชิโอเมทรี
  5. คีเลชัน
  6. ไอออนเชิงซ้อน
  7. เอนทัลปี
  8. จลนพลศาสตร์ของปฏิกิริยา
  9. พลังงานกระตุ้น
  10. กลไกปฏิกิริยา
  11. อิเล็กตรอนเวเลนซ์
Down
  1. กัมมันตรังสี
  2. คู่อิเล็กตรอนโดดเดี่ยว
  3. เซลล์อิเล็กโทรเคมี
  4. ครึ่งชีวิต
  5. เอนโทรปี
  6. โครงสร้างเรโซแนนซ์
  7. ลิแกนด์
  8. ผลผลิตเชิงทฤษฎี
  9. ออร์บิทัลโมเลกุล

20 Clues: คีเลชัน • ลิแกนด์ • เอนโทรปี • เอนทัลปี • สมดุลเคมี • ครึ่งชีวิต • กัมมันตรังสี • อุณหพลศาสตร์ • ไอออนเชิงซ้อน • กลไกปฏิกิริยา • สโตอิชิโอเมทรี • พลังงานกระตุ้น • ผลผลิตเชิงทฤษฎี • ออร์บิทัลโมเลกุล • แรงระหว่างโมเลกุล • อิเล็กตรอนเวเลนซ์ • เซลล์อิเล็กโทรเคมี • โครงสร้างเรโซแนนซ์ • คู่อิเล็กตรอนโดดเดี่ยว • จลนพลศาสตร์ของปฏิกิริยา

Thermochemistry 2023-04-28

Thermochemistry crossword puzzle
Across
  1. substance that takes part in and undergoes change during a reaction
  2. unit of work or energy in the international system of units
  3. energy object possesses due to its motion
  4. the measurement of heat changes
  5. substance produced at the end of a chemical reaction
  6. chemical reaction where heat is absorbed
  7. energy that comes from a course and travels through space at the speed of light
  8. the energy required to raise the temperature of one gram of a substance by one degree Celsius
  9. Energy possessed within object because of movement of particles within it
  10. Amount of heat needed to turn liquid into a gas
Down
  1. thermal energy
  2. Unit of measuring temperature
  3. An energy unit equal to the approximate amount of energy required to raise one gram of water by one degree Celsius, or about 4.2 joules.
  4. standard unit of thermodynamic temperature
  5. study of energy changes that occur during chemical reactions and changes in state
  6. Amount of heat needed to turn solid into a liquid
  7. Heat energy transmitted directly through a substance or object without the movement of the material
  8. chemical reaction where heat is given off
  9. Heat transferred through movement

19 Clues: thermal energy • Unit of measuring temperature • the measurement of heat changes • Heat transferred through movement • chemical reaction where heat is absorbed • energy object possesses due to its motion • chemical reaction where heat is given off • standard unit of thermodynamic temperature • Amount of heat needed to turn liquid into a gas • ...

Thermochemistry 2023-04-28

Thermochemistry crossword puzzle
Across
  1. substance that takes part in and undergoes change during a reaction
  2. unit of work or energy in the international system of units
  3. energy object possesses due to its motion
  4. the measurement of heat changes
  5. substance produced at the end of a chemical reaction
  6. chemical reaction where heat is absorbed
  7. energy that comes from a course and travels through space at the speed of light
  8. the energy required to raise the temperature of one gram of a substance by one degree Celsius
  9. Energy possessed within object because of movement of particles within it
  10. Amount of heat needed to turn liquid into a gas
Down
  1. thermal energy
  2. Unit of measuring temperature
  3. An energy unit equal to the approximate amount of energy required to raise one gram of water by one degree Celsius, or about 4.2 joules.
  4. standard unit of thermodynamic temperature
  5. study of energy changes that occur during chemical reactions and changes in state
  6. Amount of heat needed to turn solid into a liquid
  7. Heat energy transmitted directly through a substance or object without the movement of the material
  8. chemical reaction where heat is given off
  9. Heat transferred through movement

19 Clues: thermal energy • Unit of measuring temperature • the measurement of heat changes • Heat transferred through movement • chemical reaction where heat is absorbed • energy object possesses due to its motion • chemical reaction where heat is given off • standard unit of thermodynamic temperature • Amount of heat needed to turn liquid into a gas • ...

enzyme 2021-03-24

enzyme crossword puzzle
Across
  1. consisting chiefly
  2. a substance that takes part in and undergoes change during a reaction.
  3. oppoiste of DNA
  4. start of a chemical reaction
  5. stores energy:made of fatty acid
  6. a substance that has a molecular
  7. a compound consisting of a nucleoside linked to a phosphate group
  8. a pure substance that cannot be broken down into other types of substances.
  9. a simple organic compound containing both a carboxyl
  10. first source of energy for animals
  11. molecules to form a polymer.
  12. made of amino acids
Down
  1. a substance deposited in bodily tissues as a store of carbohydrates
  2. the energy needed to start the chemical
  3. is common sugar
  4. Opposite of RNA
  5. the substance acted upon by an enzyme.
  6. destroy the characteristic properties
  7. the smallest unit of matter that retains all of the chemical properties of an element
  8. organic molecule made of smaller sub-units.
  9. produce itself
  10. protein that speeds up chemical reactions chemical substance that is present at
  11. a molecule that can be bonded to other
  12. of breaking down the substrate.
  13. a covalent bond formed by joining the carboxyl group of one amino acid to the amino group of another
  14. its a example of lipids
  15. species formed from chemical reactions
  16. to store energy for plants

28 Clues: produce itself • is common sugar • Opposite of RNA • oppoiste of DNA • consisting chiefly • made of amino acids • its a example of lipids • to store energy for plants • start of a chemical reaction • molecules to form a polymer. • of breaking down the substrate. • stores energy:made of fatty acid • a substance that has a molecular • first source of energy for animals • ...

Physical vs. Chemical Changes 2013-01-24

Physical vs. Chemical Changes crossword puzzle
Across
  1. a change of matter from one form to another
  2. One sign a chemical reaction occurred is a change in this.
  3. this is a physical property that is mass divided by volume
  4. An example of a physical change where sugar combines with water
  5. This is released or absorbed when matter changes
  6. Sodium and Chlorine react to form this substance
  7. Chemical property that describes a substance's ability to burn
  8. Bubbles, fizzing, or foaming shows that this was produced
  9. When two liquids combine, and form a new solid.
  10. When Iron reacts with Oxygen, this chemical change occurs.
  11. The amount of matter in an object
  12. Another word for chemical change
  13. The amount of space an object takes up
  14. Ice absorbs thermal energy and changes state
Down
  1. A form of energy that is released or absorbed.
  2. a characteristic of matter that describes it
  3. a change that occurs when one or more substances change into a new substance
  4. You look for these to see if a chemical reaction occurred
  5. A physical change involves a change in size, shape, or ____
  6. Anything that has mass and takes up space
  7. Chemical property that describes a substance's ability to combine with other substances
  8. Describes what form of matter it is, such as a solid

22 Clues: Another word for chemical change • The amount of matter in an object • The amount of space an object takes up • Anything that has mass and takes up space • a change of matter from one form to another • a characteristic of matter that describes it • Ice absorbs thermal energy and changes state • A form of energy that is released or absorbed. • ...

Chemistry Bonus 2024-05-08

Chemistry Bonus crossword puzzle
Across
  1. state of matter characterized by having neither a defined shape nor defined volume.
  2. describes a system containing water.
  3. what is put into a chemical reaction
  4. gas in which molecules have negligible size and kinetic energy dependent only on temperature.
  5. representation of a chemical reaction using symbols
  6. a solute passing into solution, usually a solid going to the liquid phase.
  7. deoxyribonucleic acd, an organic molecule that codes for proteins.
  8. result of chemical reaction
  9. the variable that is controlled or changed in an experiment to test its effect on the dependent variable.
  10. the closeness of a measurement to a true or accepted value.
  11. transformation from a gas directly to a solid
  12. the adhesion of a chemical species onto a surface
Down
  1. an ion with a negative electrical charge.
  2. any matter or substance that has mass.
  3. transformation from a solid directly to a gas
  4. to release heat
  5. the lowest possible state at which matter can exist, 0 K or -273.15°C.
  6. important numbers in a number
  7. the absorption of heat
  8. a technique where a solution of known concentration is used to determine the concentration of an unknown solution
  9. the defining unit of an element, which cannot be subdivided using chemical means.
  10. mass per unit volume

22 Clues: to release heat • mass per unit volume • the absorption of heat • result of chemical reaction • important numbers in a number • describes a system containing water. • what is put into a chemical reaction • any matter or substance that has mass. • an ion with a negative electrical charge. • transformation from a solid directly to a gas • ...

Chemical reactions and equations 2024-05-14

Chemical reactions and equations crossword puzzle
Across
  1. Representation of a chemical reaction1.
  2. Reaction where a single compound breaks down into two or more elements or new compounds1.
  3. Chemical equation with the same number of atoms of each element on both sides1.
  4. Dissolved in water.
  5. Reaction that releases energy.
  6. where an element displaces another element from a compound1.
  7. Substances on the left hand side of the equation
  8. Reaction where two or more substances combine to form a new substance1.
  9. Substance that speeds up a reaction without being consumed.
  10. Reaction that absorbs energy.
Down
  1. involving the gain of oxygen .
  2. involving the loss of oxygen
  3. Reaction of a substance with oxygen, releasing energy.
  4. Insoluble solid formed in a reaction.
  5. Substances on the Right hand side of the equation

15 Clues: Dissolved in water. • involving the loss of oxygen • Reaction that absorbs energy. • involving the gain of oxygen . • Reaction that releases energy. • Insoluble solid formed in a reaction. • Representation of a chemical reaction1. • Substances on the left hand side of the equation • Substances on the Right hand side of the equation • ...

Ch. 8 Vocabulary 2026-04-04

Ch. 8 Vocabulary crossword puzzle
Across
  1. Reaction in which two or more substance combine to form a compound (usually 2 elements forming a compound)
  2. Reaction in which an element will swap places with an atom in a compound (an element breaks up a compound)
  3. Saved or kept the same
  4. A substance produced in a chemical reaction, shown to the right of the arrow.
  5. Chemical reaction where ions swap partners
  6. Small number on the bottom that represents the number of atoms.
  7. The substance that goes into a chemical reaction, found on the left side of the arrow.
Down
  1. Matter cannot be created or destroyed in a chemical reaction.
  2. Large number in front that represents the number of molecules or moles.
  3. Reaction in which a compound is broken down into simpler substances (usually compound to elements)
  4. “Equals” represented by an arrow →
  5. Reaction in which a fuel burns in the presence of oxygen forming water & carbon dioxide

12 Clues: Saved or kept the same • “Equals” represented by an arrow → • Chemical reaction where ions swap partners • Matter cannot be created or destroyed in a chemical reaction. • Small number on the bottom that represents the number of atoms. • Large number in front that represents the number of molecules or moles. • ...

Photosynthesis Vocab Crossword 2025-04-10

Photosynthesis Vocab Crossword crossword puzzle
Across
  1. The word for H2O
  2. Photosynthesis cannot occur without this
  3. The color that chlorophyll mostly reflects
  4. The word for C6H12O6
  5. An ingredient in a chemical reaction
  6. The gas reactant for photosynthesis
  7. The main pigment used in photosynthesis
  8. The photosynthesis product that is cast away by plants
Down
  1. A chemical reaction through which plants make sugar
  2. Dioxide The word for CO2
  3. The part of the leave that is used for breathing
  4. The word for O2
  5. The organelle where photosynthesis occurs
  6. The photosynthesis product that plants use for food
  7. The liquid reactant for photosynthesis
  8. The result(s) of a chemical reaction

16 Clues: The word for O2 • The word for H2O • The word for C6H12O6 • Dioxide The word for CO2 • The gas reactant for photosynthesis • An ingredient in a chemical reaction • The result(s) of a chemical reaction • The liquid reactant for photosynthesis • The main pigment used in photosynthesis • Photosynthesis cannot occur without this • The organelle where photosynthesis occurs • ...

7th grade science crossword puzzle - Interactive piece 2023-06-02

7th grade science crossword puzzle - Interactive piece crossword puzzle
Across
  1. reaction is hotter than its surroundings
  2. changes consist of boiling, melting, freezing, and shredding
  3. neutral charge in atom
  4. 2 or more atoms chemically bonded to each other
  5. has a definite shape and volume
  6. reaction is cooler than its surroundings
  7. can neither be created or destroyed in a chemical reaction
Down
  1. positive charge in atom
  2. negative charge in atom
  3. changes consist of burning, cooking, rusting, and rotting
  4. bond that occurs through the interaction of neutral atoms
  5. has a deinite volume but takes the shape of the container
  6. substance that cannot be broken down by chemical means
  7. bond is the strongest type of chemical bond
  8. has no definite shape or volume

15 Clues: neutral charge in atom • positive charge in atom • negative charge in atom • has a definite shape and volume • has no definite shape or volume • reaction is hotter than its surroundings • reaction is cooler than its surroundings • bond is the strongest type of chemical bond • 2 or more atoms chemically bonded to each other • ...

Chemical reaction 2023-07-18

Chemical reaction crossword puzzle
Across
  1. this Energy is used to break the bonds between the atoms
  2. when heat is absorbed in during a chemical reaction
  3. two or more substances joined together to make a new substance.
Down
  1. a substance breaks down into simpler substance
  2. when heat is given out during a chemical reaction
  3. a substance gains oxygen during a chemical reaction
  4. it cannot be created nor destroyed,only transferable

7 Clues: a substance breaks down into simpler substance • when heat is given out during a chemical reaction • a substance gains oxygen during a chemical reaction • when heat is absorbed in during a chemical reaction • it cannot be created nor destroyed,only transferable • this Energy is used to break the bonds between the atoms • ...

vocab 2023-10-03

vocab crossword puzzle
Across
  1. numbers come next a symbol
  2. equation represent a reaction
  3. creates a solution
  4. natural,agricultural,or industrial product
  5. substance one kind of particle
  6. no definite shape
  7. substance formed
  8. crystals
  9. two or more atoms
  10. same protons
  11. constant term
  12. dissolved in a solvent
Down
  1. bonding two or more
  2. identical
  3. changes to a chemical reaction
  4. throughout the mixture
  5. combination
  6. reaction new substance
  7. of conservation of mass mass states

19 Clues: crystals • identical • combination • same protons • constant term • substance formed • no definite shape • two or more atoms • creates a solution • bonding two or more • throughout the mixture • dissolved in a solvent • numbers come next a symbol • reaction new substance • changes to a chemical reaction • substance one kind of particle • equation represent a reaction • ...

Chemical Clues 2025-05-01

Chemical Clues crossword puzzle
Across
  1. One substance breaks down into two or more simpler substances.
  2. An equation where the number of atoms of each element is the same on both sides.
  3. Substance that speeds up a reaction, without changing itself.
  4. Spoiling of fats and oils (bad smell/taste).
  5. Gives out heat.
  6. The new substances formed in a chemical reaction.
  7. Slow damage of metals by air/moisture.
  8. The starting substances in a chemical reaction.
Down
  1. A way to represent a chemical reaction using symbols and formulas.
  2. A more reactive element replaces a less reactive one.
  3. Loss of oxygen or gain of electrons.
  4. Two compounds exchange ions to form new compounds.
  5. A substance reacts with oxygen to release heat and light.
  6. Takes in heat.
  7. Breaking compounds using electricity
  8. Gain of oxygen or loss of electrons.

16 Clues: Takes in heat. • Gives out heat. • Loss of oxygen or gain of electrons. • Breaking compounds using electricity • Gain of oxygen or loss of electrons. • Slow damage of metals by air/moisture. • Spoiling of fats and oils (bad smell/taste). • The starting substances in a chemical reaction. • The new substances formed in a chemical reaction. • ...

Carbohydrates Crossword 2023-04-27

Carbohydrates Crossword crossword puzzle
Across
  1. means many
  2. means to cut
  3. monomer of carbohydrates
  4. means sugar
  5. shape of glucose
  6. means two
  7. structure for plants
  8. molecular formula of fructose and glucose
  9. chemical reaction that separates monosaccharides
  10. fuel for body and brain
  11. bond between monosaccharides
  12. shape of fructose
  13. carbohydrate energy storage in animals
Down
  1. the polymer of carbohydrates
  2. means water
  3. fruit sugar
  4. two monosaccharides bonded together
  5. table sugar
  6. energy storage for plants
  7. means one
  8. chemical reaction combining monosaccharides
  9. malt sugar

22 Clues: means two • means one • means many • malt sugar • means water • fruit sugar • table sugar • means sugar • means to cut • shape of glucose • shape of fructose • structure for plants • fuel for body and brain • monomer of carbohydrates • energy storage for plants • the polymer of carbohydrates • bond between monosaccharides • two monosaccharides bonded together • carbohydrate energy storage in animals • ...

Elements crossword by Ian and Amos 2015-02-12

Elements crossword by Ian and Amos crossword puzzle
Across
  1. made from two compounds
  2. gas liquid solid
  3. stuff
  4. gas to liquid
  5. substances from a chemical reaction
  6. spread out
  7. made from one type of material
  8. solid to liquid
  9. amount of matter in a thing that made out of
Down
  1. not shiny
  2. atoms
  3. liquid to gas
  4. liquid to solid
  5. made from elements
  6. solid to gas
  7. flow around each other
  8. become denser
  9. a staring substances in a chemical reaction
  10. cannot move
  11. shiny

20 Clues: atoms • stuff • shiny • not shiny • spread out • cannot move • solid to gas • liquid to gas • gas to liquid • become denser • liquid to solid • solid to liquid • gas liquid solid • made from elements • flow around each other • made from two compounds • made from one type of material • substances from a chemical reaction • a staring substances in a chemical reaction • ...

Chemistry Module 13 2023-04-19

Chemistry Module 13 crossword puzzle
Across
  1. the law that states enthalpy is a state function
  2. the law that states entropy must increase or remain the same; can never decrease
  3. when ∆Hrxn of a chemical reaction is negative
  4. measure of disorder in a system
  5. needed energy to start chemical reaction
  6. when does a reaction is spontaneous
Down
  1. it say that the final answer is fixed, whereas the way to get the answer is different.
  2. equation of Gibbs free energy
  3. when ∆Hrxn of a chemical reaction is positive
  4. energy change accompanying with a chemical reaction
  5. when does a reaction is not spontaneous

11 Clues: equation of Gibbs free energy • measure of disorder in a system • when does a reaction is spontaneous • when does a reaction is not spontaneous • needed energy to start chemical reaction • when ∆Hrxn of a chemical reaction is negative • when ∆Hrxn of a chemical reaction is positive • the law that states enthalpy is a state function • ...

Reactions and Energy 2021-05-17

Reactions and Energy crossword puzzle
Across
  1. heat / the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
  2. / when a substance (or a few substances) change into another substance.
  3. / the strength and vitality required for sustained physical or mental activity.
  4. / a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  5. / equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th of a watt-hour.
  6. area / the area of such an outer part or uppermost layer.
  7. / (of a reaction or process) accompanied by or requiring the absorption of heat.
  8. rate / speed of reaction for a reactant or product in a particular reaction is intuitively defined as how quickly or slowly a reaction takes place.
  9. / a substance that takes part in and undergoes change during a reaction.
  10. energy / the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
Down
  1. / The degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch
  2. / product is a new material formed in a chemical reaction.
  3. of conservation of Mass / states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations
  4. / the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
  5. / (of a compound) formed from its constituent elements with a net release of heat.
  6. / either of two units of heat energy.
  7. / the process or result of oxidizing or being oxidized.

17 Clues: / either of two units of heat energy. • / the process or result of oxidizing or being oxidized. • area / the area of such an outer part or uppermost layer. • / product is a new material formed in a chemical reaction. • / when a substance (or a few substances) change into another substance. • / a substance that takes part in and undergoes change during a reaction. • ...

Vocab 4 2024-03-27

Vocab 4 crossword puzzle
Across
  1. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.
  2. any substance that in water solution is slippery to the touch, tastes bitter
  3. a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products
  4. a chemical process in which two or more simple elements or compounds combine to form a more complex product.
  5. the number in front of the formula.
  6. tells you by mass what percent of each element is present in a compound
  7. Empirical Formula
Down
  1. a reaction in which a compound breaks down into two or more simpler substances.
  2. consisting of an ionic assembly of positively charged cations and negatively charged anions
  3. the mass in grams of one mole of a substance.
  4. a chemical reaction, the total mass of the products must be equal to the total mass of the reactants.
  5. raw materials that react with one another and form products
  6. chemical substances which are formed due to a chemical reaction between two or more chemical substances
  7. small-sized number on the bottom right of the symbol.
  8. ives the total number of atoms of each element in a molecule.
  9. potential of hydrogen

16 Clues: Empirical Formula • potential of hydrogen • the number in front of the formula. • the mass in grams of one mole of a substance. • small-sized number on the bottom right of the symbol. • raw materials that react with one another and form products • ives the total number of atoms of each element in a molecule. • ...

Energy 2026-03-11

Energy crossword puzzle
Across
  1. what comes out of a chemical reaction
  2. what goes into a chemical reaction (ingredients)
  3. site, the place on the enzyme where the substrate can bind
  4. a series of actions that happen over and over again (adp to atp to adp to atp, for example)
  5. when an enzyme changes its shape and is no longer able to function
Down
  1. a protein that speeds up a chemical reaction in living things
  2. the reactant in a reaction that uses an enzyme
  3. all of the chemical reactions needed to keep an organism alive
  4. the energy that a cell uses
  5. adenosine diphosphate - atp with one phosphate removed
  6. any chemical that speeds up a chemical reaction but does not get used up

11 Clues: the energy that a cell uses • what comes out of a chemical reaction • the reactant in a reaction that uses an enzyme • what goes into a chemical reaction (ingredients) • adenosine diphosphate - atp with one phosphate removed • site, the place on the enzyme where the substrate can bind • a protein that speeds up a chemical reaction in living things • ...

Chemistry cossword 2024-03-14

Chemistry cossword crossword puzzle
Across
  1. - Analyzing light interactions with matter
  2. - Capable of being maintained over the long term
  3. - Production of complex molecules in living organisms
  4. - Relating to the decomposition of substances by electricity
  5. - Chemical reaction that releases heat energy
  6. - Chemical reaction involving transfer of electrons
  7. - Breakdown of molecules induced by light
  8. - Loss of a proton from a molecule
  9. - Reactant acted upon by an enzyme
  10. - Act of dividing or isolating components from a mixture
  11. - Reactivity involving electron-deficient species
  12. - Composed of different components not uniformly distributed
  13. - Bending of light waves as they pass around obstacles
  14. - Reactivity involving electron-rich species
Down
  1. - Measure of effectiveness or productivity
  2. - Study of chemical processes involving electricity
  3. - Study of particles' behavior at the smallest scales
  4. - Process of combining monomers to form polymers
  5. - Substance being analyzed or measured
  6. - Enzyme responsible for polymerization of nucleic acids
  7. - Study of the spatial arrangement of atoms in molecules
  8. - Initiation of a chemical reaction
  9. - Technique separating chemical mixtures
  10. - Chemicals that donate or accept protons
  11. - Acceleration of chemical reactions by catalysts
  12. - Methodical examination or investigation
  13. - Substance capable of dissolving other substances
  14. - Bonding of metal ions to ligands in complexes
  15. - Process of determining the concentration of a solution
  16. - Balance between opposing forces or actions

30 Clues: - Loss of a proton from a molecule • - Reactant acted upon by an enzyme • - Initiation of a chemical reaction • - Substance being analyzed or measured • - Technique separating chemical mixtures • - Chemicals that donate or accept protons • - Methodical examination or investigation • - Breakdown of molecules induced by light • - Analyzing light interactions with matter • ...

Vocab 4 2024-03-27

Vocab 4 crossword puzzle
Across
  1. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.
  2. any substance that in water solution is slippery to the touch, tastes bitter
  3. a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products
  4. a chemical process in which two or more simple elements or compounds combine to form a more complex product.
  5. the number in front of the formula.
  6. tells you by mass what percent of each element is present in a compound
  7. Empirical Formula
Down
  1. a reaction in which a compound breaks down into two or more simpler substances.
  2. consisting of an ionic assembly of positively charged cations and negatively charged anions
  3. the mass in grams of one mole of a substance.
  4. a chemical reaction, the total mass of the products must be equal to the total mass of the reactants.
  5. raw materials that react with one another and form products
  6. chemical substances which are formed due to a chemical reaction between two or more chemical substances
  7. small-sized number on the bottom right of the symbol.
  8. ives the total number of atoms of each element in a molecule.
  9. potential of hydrogen

16 Clues: Empirical Formula • potential of hydrogen • the number in front of the formula. • the mass in grams of one mole of a substance. • small-sized number on the bottom right of the symbol. • raw materials that react with one another and form products • ives the total number of atoms of each element in a molecule. • ...

Classification of Matter 2025-11-06

Classification of Matter crossword puzzle
Across
  1. two or more substances that are not chemically united
  2. change in the physical properties of a substance
  3. the elements of a compound and their relative proportions
  4. substance obtained from another substance through chemical change
  5. change that is accompanied by a liberation of heat
  6. Uniform mixture where the components are evenly distributed
  7. state in which the particles of a substance are mixed with a fluid but are undissolved
  8. one of two or more existing forms of an element.
  9. A substance having a specific molecular composition
  10. substance participating in a chemical reaction present at the start of the reaction
  11. a substance composed of two or more metals, or of a metal or metals with a nonmetal
  12. change that is accompanied by an absorption of heat
  13. pure substance composed of two or more elements
Down
  1. chemical reaction involving the rearrangement of the atoms of one or more substances
  2. Substances that cannot be separated into simpler substances
  3. characteristic of a substance that is observed without changing the chemical composition
  4. property of a substance that is observed when the chemical composition is changed
  5. matter with a constant composition and distinct properties
  6. non-uniform mixture
  7. very small particles of one substance are distributed evenly throughout another substance
  8. the smallest component of an element having the chemical properties of the element

21 Clues: non-uniform mixture • pure substance composed of two or more elements • change in the physical properties of a substance • one of two or more existing forms of an element. • change that is accompanied by a liberation of heat • A substance having a specific molecular composition • change that is accompanied by an absorption of heat • ...

vocab crossword 2013-12-19

vocab crossword crossword puzzle
Across
  1. proton positive charge, located in the nucleus
  2. law of conversation of mass states that in a chemical reaction, matter can't be created or destroyed
  3. the smallest part of an element-the building block of matter
  4. family a vertical group, based on same, or similar chemical or physical properties
  5. chemical reaction the changes when an element is put together or pulled apart
  6. a greek word that means indivisible
  7. physical change is a type of change in which the form of matter is altered but one substance is not transformed into another
  8. the center of an atom, that holds the protons and neutrons
  9. physical property a characteristic that can be observed or measured
  10. reactant the substance you start with
  11. electron negative charge, that moves around the nucleus
Down
  1. product the substance you end with
  2. the first person to discover atoms
  3. period the horizontal rows, numbered 1-7
  4. mass the number of protons and neutrons inside the nucleus
  5. chemical change occur when a substance combines with another to form a new substance
  6. molecule a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  7. compound a substance that is made of 2 or more than 2 different elements
  8. neutron neutral charge, located inside the nucleus
  9. chemical property a characteristic that enables a substance to undergo a chemical change
  10. element a substance that is made up of only 1 atom

21 Clues: the first person to discover atoms • product the substance you end with • a greek word that means indivisible • reactant the substance you start with • period the horizontal rows, numbered 1-7 • proton positive charge, located in the nucleus • neutron neutral charge, located inside the nucleus • element a substance that is made up of only 1 atom • ...

WS Equilibrium 2024-04-22

WS Equilibrium crossword puzzle
Across
  1. the principle that in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction
  2. measures the relative amounts of products and reactants present during a reaction at a particular point in time
  3. a chemical reaction where the reactants form products that, in turn, react together to give the reactants back
  4. is the state of a system in which the rate of the forward reaction is equal to the rate of the reverse reaction
  5. expresses the relationship between products and reactants of a reaction at ___________ with respect to a specific unit
  6. heat is absorbed by the system from the surroundings
  7. the sum of the internal energy and the product of pressure and volume
  8. a system whose reactants, products, or both are in more than one phase is a
Down
  1. if heat is released by the system into the surroundings
  2. When the products and reactants of an equilibrium reaction form a single phase, whether gas or liquid, the system is a
  3. a substance that is present at the start of a chemical reaction
  4. is used in the manufacturing of ammonia from nitrogen and hydrogen, and then goes on to explain the reasons for the conditions used in the process
  5. the minimum energy that colliding particles must have in order to undergo a reaction
  6. states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium
  7. the time needed for a change in concentration to occur
  8. a natural physical system that does not allow transfer of matter in or out of the system
  9. a substance that is present at the end of a chemical reaction

17 Clues: heat is absorbed by the system from the surroundings • the time needed for a change in concentration to occur • if heat is released by the system into the surroundings • a substance that is present at the end of a chemical reaction • a substance that is present at the start of a chemical reaction • ...

Macromolecules BY HAILEY RUIZ 2021-08-20

Macromolecules BY HAILEY RUIZ crossword puzzle
Across
  1. a chemicals reaction that is accompanied by the absorption of heat
  2. Elements or compounds produces by a chemical reaction
  3. the backbone of the lipid
  4. Made up of 5-carbons
  5. The monomer of lipids
  6. a compound made of carbon, hydrogen, and oxygen atoms
  7. speeds up the rate of specific biological reaction..
  8. energy needed for a reaction to begin
  9. Sweet and can give you energy
  10. Macromolecule made mostly from carbon and hydrogen atoms.
Down
  1. Acid Compound with an amino group on one end and a carboxyl group on the other end
  2. Acid Macromolecules contain hydrogen, carbon, and phosphorus
  3. a chemical reaction that is accompanied by the release of heat
  4. SINGLE SUGAR MOLECULE
  5. a fat with at least one double carbon-carbon
  6. Reactant of an enzyme reaction!!
  7. A compound made by joining 2 monosaccharides
  8. A fatty acids containing no double bonds
  9. contains carbon, hydrogen, oxygen, and nitrogen! Need it so your body can grow

19 Clues: Made up of 5-carbons • SINGLE SUGAR MOLECULE • The monomer of lipids • the backbone of the lipid • Sweet and can give you energy • Reactant of an enzyme reaction!! • energy needed for a reaction to begin • A fatty acids containing no double bonds • a fat with at least one double carbon-carbon • A compound made by joining 2 monosaccharides • ...

Chemistry 2012-11-19

Chemistry crossword puzzle
Across
  1. an negatively charged particle that is found in on the outside of the nucleus
  2. something you study everyday in 8th grade
  3. separation of a substance into two or more sustances
  4. reaction something that happens when you mix two or more substances together
  5. having the power to dissolve
  6. an positively charged particle that is founf in the nucleus
  7. an non charge particle that is found in the nucleus
  8. having the power of not dissolving
  9. there are 103 of these in the periodic table
Down
  1. a representation of a chemical reaction using symbols of the elements to indiate the amount of a substance
  2. conversion the process of changing one form of energy into another
  3. bubbling or steaming produce by heat
  4. relatively high degee of warmth
  5. the smallest component of an element
  6. reaction reaction two compounds switch places to form two new compounds
  7. the smallest physical unit of an element
  8. an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
  9. the home of where you can find protons and neutrons

18 Clues: having the power to dissolve • relatively high degee of warmth • having the power of not dissolving • bubbling or steaming produce by heat • the smallest component of an element • the smallest physical unit of an element • something you study everyday in 8th grade • there are 103 of these in the periodic table • the home of where you can find protons and neutrons • ...

Actuvity 2 2023-12-04

Actuvity 2 crossword puzzle
Across
  1. Substance with a pH less than 7.
  2. Process of forming ions in a solution.
  3. Study of energy changes in chemical reactions.
  4. Solid formed during a chemical reaction in a solution.
  5. Type of reaction involving both reduction and oxidation.
Down
  1. State in which opposing forces or processes are balanced.
  2. Substances that undergo a chemical change.
  3. The ability of a substance to dissolve in a solvent.
  4. Reaction between an acid and a base, resulting in a neutral solution.
  5. French chemist known for his principle on chemical equilibrium.
  6. The amount of a substance in a given volume.
  7. Substance that speeds up a chemical reaction without being consumed.

12 Clues: Substance with a pH less than 7. • Process of forming ions in a solution. • Substances that undergo a chemical change. • The amount of a substance in a given volume. • Study of energy changes in chemical reactions. • The ability of a substance to dissolve in a solvent. • Solid formed during a chemical reaction in a solution. • ...

Elements, Compounds, Mixtures, Molecules 2025-09-16

Elements, Compounds, Mixtures, Molecules crossword puzzle
Across
  1. A substance produced in a chemical reaction
  2. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  3. A sample of matter, either a single element or a single compound, that has definite chemical and physical properties
  4. 2 or more atoms from different elements bonded together in a set ratio
  5. A chemical substance that is present at the start of a chemical reaction
  6. Mixture in which substances are evenly distributed (you cannot see the different parts)
  7. Mixture A mixture in which you can see the different parts
Down
  1. Number written below chemical symbol that tells you how many atoms of that element is in the molecule
  2. 2 or more atoms from the same element bonded together
  3. 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
  4. Shows the elements in a compound and the set ratio of the atoms
  5. Anything that has mass and takes up space (volume)
  6. A pure substance that cannot be broken down into any other substance by chemical or physical means
  7. 2 or more substances mixed but NOT chemically bonded
  8. Basic particle from which all elements are made

15 Clues: A substance produced in a chemical reaction • Basic particle from which all elements are made • Anything that has mass and takes up space (volume) • 2 or more substances mixed but NOT chemically bonded • 2 or more atoms from the same element bonded together • Mixture A mixture in which you can see the different parts • ...

Enzyme 2026-03-03

Enzyme crossword puzzle
Across
  1. Substance that are changed or used up in a chemical reaction.
  2. A process that released energy to break down larger molecules to become smaller.
  3. Substance formed from reactants in a chemical reaction.
  4. A reaction that requires energy to proceed.
  5. The substrate molecules fit perfectly into active site
  6. A process that requires energy to build up larger molecules.
  7. BIOLOGICAL CATALYST
Down
  1. A reaction that releases energy.
  2. The energy required to start any reaction
  3. MOLECULES THAT INHIBIT THE ACTIVITY OF ENZYMES
  4. The sum of all chemical reactions that occur in a cell or organism
  5. Enzyme changes shape to fit the substrate.
  6. Organic cofactors

13 Clues: Organic cofactors • BIOLOGICAL CATALYST • A reaction that releases energy. • The energy required to start any reaction • Enzyme changes shape to fit the substrate. • A reaction that requires energy to proceed. • MOLECULES THAT INHIBIT THE ACTIVITY OF ENZYMES • The substrate molecules fit perfectly into active site • Substance formed from reactants in a chemical reaction. • ...

8th Grade Science 2026-01-28

8th Grade Science crossword puzzle
Across
  1. a substance that takes part in and undergoes change during a reaction
  2. the energy transfer with no medium
  3. "a push or a pull towards the center of the earth caused by the bend in space that any mass creates"
  4. the transfer of heat through the physical movement of fluids (liquids or gases),
  5. "the state or condition of having parts very close together with little space between"
  6. ______ Resources are those found naturally on earth
  7. A chemical reaction that gives off heat
  8. the substances formed as a result of a chemical reaction, appearing on the right side of a chemical equation
Down
  1. A Chemical Reaction that takes in heat
  2. The process that Causes liquid to become a gas
  3. a stable, electrically neutral group of two or more atoms
  4. A scientific _____ is a concise, verified, and often mathematical description of an observed natural phenomenon
  5. smallest unit of a chemical element
  6. the transfer of heat energy directly through a substance (usually solid) via touch
  7. ______ Resources are those not found naturally on earth
  8. fundamental measure of the amount of matter in a substance or object, quantified by its inertia
  9. The process that Causes liquid to become a Solid

17 Clues: the energy transfer with no medium • smallest unit of a chemical element • A Chemical Reaction that takes in heat • A chemical reaction that gives off heat • The process that Causes liquid to become a gas • The process that Causes liquid to become a Solid • ______ Resources are those found naturally on earth • ______ Resources are those not found naturally on earth • ...

Thermo 2023-04-30

Thermo crossword puzzle
Across
  1. substances that go into a chemical reaction
  2. chemical reaction in which heat is given off
  3. amount of energy used when a force of 1 newton moves an object 1 meter
  4. result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases
  5. unit of the thermodynamic temperature scale
  6. amount of heat needed to change a liquid to a vapor at constant temperature and pressure
  7. transfer of heat by means of molecule excitement within a material without motion of the matter
  8. heat energy
  9. the study of energy changes that occur during chemical reactions and changes in state
  10. substances produced at the end of the reaction
  11. energy required to raise the temperature of one gram of a substance by one degree Celsius
  12. chemical reaction in which heat is absorbed
Down
  1. measurement of heat changes
  2. unit for heat capacities, latent heats, and heats of reaction
  3. energy emitted by matter that is a nonzero temperature, transported in the form of electromagnetic waves
  4. process of heat transfer by the movement of molecules within fluids such as gases and liquids
  5. heat capacity is determined by both the type and amount of substances that absorbs or release heat
  6. quantity of energy needed to melt or freeze a substance under condition of constant pressure
  7. energy an object or particle has due to its motion

19 Clues: heat energy • measurement of heat changes • substances that go into a chemical reaction • unit of the thermodynamic temperature scale • chemical reaction in which heat is absorbed • chemical reaction in which heat is given off • substances produced at the end of the reaction • energy an object or particle has due to its motion • ...

Unit 3 Chemical Reactions 2025-10-25

Unit 3 Chemical Reactions crossword puzzle
Across
  1. A substance made by chemical processes rather than occurring naturally.
  2. A new substance formed as a result of a chemical reaction.
  3. A mixture where larger particles are dispersed throughout a liquid or gas and will settle over time.
  4. The substance that dissolves another substance in a solution.
  5. A change that results in the formation of one or more new substances with different properties.
  6. A combination of two or more substances that are physically combined but not chemically bonded.
Down
  1. The ability of a substance to dissolve in another substance under certain conditions.
  2. A change in the form or appearance of a substance without changing its chemical composition.
  3. A chemical reaction that absorbs heat energy from its surroundings.
  4. The substance that is dissolved in a solution.
  5. A chemical reaction that releases heat energy to its surroundings.
  6. A homogeneous mixture where one substance is completely dissolved in another.
  7. A large molecule composed of repeating smaller units called monomers.
  8. A starting substance that takes part in a chemical reaction.
  9. A type of mixture where small particles are evenly spread out but do not settle over time.

15 Clues: The substance that is dissolved in a solution. • A new substance formed as a result of a chemical reaction. • A starting substance that takes part in a chemical reaction. • The substance that dissolves another substance in a solution. • A chemical reaction that releases heat energy to its surroundings. • ...

enzymes 2020-11-01

enzymes crossword puzzle
Across
  1. any substance that speeds up a reaction
  2. the substance produced in an enzyme reaction
  3. enzymes can be used over and over _____ after a chemical reaction
  4. the substance an enzyme works on
  5. a biological catalyst
Down
  1. type of protein, found on the surface of cells
  2. enzymes _____ up chemical reactions
  3. type of protein, a chemical messenger
  4. enzymes remain ______ after a chemical reaction
  5. what enzymes are made out of
  6. type of protein, fights infections

11 Clues: a biological catalyst • what enzymes are made out of • the substance an enzyme works on • type of protein, fights infections • enzymes _____ up chemical reactions • type of protein, a chemical messenger • any substance that speeds up a reaction • the substance produced in an enzyme reaction • type of protein, found on the surface of cells • ...

The Chemistry of life 2023-12-06

The Chemistry of life crossword puzzle
Across
  1. The place in an atom where protons and neutrons chill.
  2. The ingredients of a chemical reaction
  3. Hydrogens bonding
  4. Atoms holding together to form a ______.
  5. Really tiny particles that make up everything.
  6. The cool things on the periodic table.
  7. Carbohydrates are found in bananas, and ________ are found in meat.
  8. Fats playing an important role in the body.
  9. It has 6 electrons and Its symbol is 'C'
  10. Hydrogen with 3 neutrons
  11. Genetic gossip carriers like DNA and RNA.
Down
  1. The negative particle hanging around the nucleus.
  2. Pasta is a __________, which gives fast energy.
  3. The lightest of the elements.
  4. When elements decide to combine together.
  5. The result of some reactants.
  6. An atom that has positive or negative charge.
  7. The result of a chemical reaction.
  8. When atoms become friends and share electrons.
  9. The positive particle hanging out in the nucleus.

20 Clues: Hydrogens bonding • Hydrogen with 3 neutrons • The lightest of the elements. • The result of some reactants. • The result of a chemical reaction. • The ingredients of a chemical reaction • The cool things on the periodic table. • Atoms holding together to form a ______. • It has 6 electrons and Its symbol is 'C' • When elements decide to combine together. • ...

2.3 2022-10-07

2.3 crossword puzzle
Across
  1. — Carboxyl
  2. — Large and important structures of joined-together carbons
  3. — Valence electrons in carbon
  4. — One in a million
  5. — What comes out (in chemical reaction)
  6. acids — Greasy tails, component of (lipids)
  7. energy —
  8. reaction — Changing relationships, perhaps
  9. — Make it happen, biologically (one type of catalyst)
  10. — Cinderella before her transformation (which happens in enzyme)
  11. — Greasy non-polymers
  12. acid — Your twisty manual
  13. — Glucose, for instance
Down
  1. — Make it happen, generally
  2. — Two times (monomer thing)
  3. — Made of elements H, C, and O to get you through the day
  4. — Made by you and me, and your dog and that maple tree
  5. — Many (monosaccharides)
  6. — Sweet chain
  7. — Chains to pep up your cells and make them perform
  8. — A million in a million
  9. — Small CHONP!
  10. — The originals (in chemical reaction)
  11. acid — They “R” different
  12. site — Where did Cinderella go to transform herself?

25 Clues: energy — • — Carboxyl • — Sweet chain • — Small CHONP! • — One in a million • — Greasy non-polymers • — Glucose, for instance • — Many (monosaccharides) • — A million in a million • acid — They “R” different • acid — Your twisty manual • — Make it happen, generally • — Two times (monomer thing) • — Valence electrons in carbon • — The originals (in chemical reaction) • ...

Science 2025-02-13

Science crossword puzzle
Across
  1. Rhythmically move or vibrate
  2. When plasma turns back into a gas
  3. A force exerted on matter through contact
  4. To strike or hit with force
  5. Heat can pass through easily like metal
  6. What goes into a chemical reaction
  7. What is produced in a chemical reaction
Down
  1. A chemical reaction that releases heat
  2. Not chemically reactive
  3. A chemical reaction that absorbs heat and energy
  4. Doesn't conduct heat and traps it like rubber

11 Clues: Not chemically reactive • To strike or hit with force • Rhythmically move or vibrate • When plasma turns back into a gas • What goes into a chemical reaction • A chemical reaction that releases heat • Heat can pass through easily like metal • What is produced in a chemical reaction • A force exerted on matter through contact • Doesn't conduct heat and traps it like rubber • ...

Will Dumas chapter 13 2017-10-11

Will Dumas chapter 13 crossword puzzle
Across
  1. This is a reaction between a material and molecular oxygen
  2. new materials formed in a chemical reaction
  3. Chemical reaction where there is a net release of energy
  4. This states that no atoms are gained or lost during any reaction.
  5. This is also known as Activation Energy
  6. If a material has a pH of 3, is it acidic or basic.
Down
  1. Name of the new materials formed in a chemical reaction
  2. Name for the minimum energy required in order for a chemical reaction to proceed
  3. Chemical reaction in which there is a net absorption of energy
  4. a substance that accepts hydrogen ions

10 Clues: a substance that accepts hydrogen ions • This is also known as Activation Energy • new materials formed in a chemical reaction • If a material has a pH of 3, is it acidic or basic. • Name of the new materials formed in a chemical reaction • Chemical reaction where there is a net release of energy • This is a reaction between a material and molecular oxygen • ...

Chemical Equations and Reaction-Aryan Biju 2024-05-05

Chemical Equations and Reaction-Aryan Biju crossword puzzle
Across
  1. Calcium Oxide(CaO)
  2. It is defined as the addition of Oxygen to a substance
  3. It is a chemical reaction in which a more reactive metal displaces a less reactive metal in an aqueous solution
  4. It burns with a pop sound
  5. it is used for Black & White photography
  6. Calcium Carbonate(CaCO3)
  7. A chemical reaction in which oxidation and reduction occurs simultaneously
  8. a gas with a rotten egg smell
Down
  1. Brown Fumes are formed
  2. Its a chemical reaction in which two more substance combine to form a single product
  3. An exothermic reaction that occurs in our body
  4. A substance used to clense magnesium ribbon
  5. a green colour crystal
  6. A reaction in which heat is released or evolved

14 Clues: Calcium Oxide(CaO) • Brown Fumes are formed • a green colour crystal • Calcium Carbonate(CaCO3) • It burns with a pop sound • a gas with a rotten egg smell • it is used for Black & White photography • A substance used to clense magnesium ribbon • An exothermic reaction that occurs in our body • A reaction in which heat is released or evolved • ...

Sciene 2013-08-06

Sciene crossword puzzle
Across
  1. Shorthand statement of the elements in a substance showing the relative number of atoms of each kind of element.
  2. bases that dissolve in water.
  3. Large marsupial
  4. Mixture of solute dissolved in a solvent. Solutions are clear but may be coloured.
  5. A measure of the acidity or alkalinity or water, soil etc.
  6. A chemical that reacts with a base to produce a salt and water.
  7. Has a trunk
  8. Substances that are dissolved in the solvent to form a solution.
  9. Flying mammal
  10. Chemical that starts to help or speed up a chemical reaction.
Down
  1. Very reactive metals in group 1 of the periodic table.
  2. A reaction between an acid and a base.
  3. A very small particle that makes up all things. Atoms have the same properties as the objects they make up.
  4. A representation of a chemical reaction. It lists the reactants involved and the products formed.
  5. Man's best friend
  6. Scale from 1 (acidic) to 14 (basic) that measures how acidic or basic a substance is.
  7. Likes to chase mice
  8. A chemical substance that will react with an acid to produce a salt and water.
  9. Neither acidic nor basic
  10. The compound formed by the sharing of electrons.

20 Clues: Has a trunk • Flying mammal • Large marsupial • Man's best friend • Likes to chase mice • Neither acidic nor basic • bases that dissolve in water. • A reaction between an acid and a base. • The compound formed by the sharing of electrons. • Very reactive metals in group 1 of the periodic table. • A measure of the acidity or alkalinity or water, soil etc. • ...

Unit 1 crossword 2016-12-08

Unit 1 crossword crossword puzzle
Across
  1. – a polymer made of monomers called amino acids
  2. energy – amount of energy that will break a bond between two Atoms
  3. acid – molecules that contain carbon hydrogen oxygen, nitrogen and sometimes sulfur
  4. – reach the win both the reactants and products are made at the same right
  5. acids – chains of carbon atoms bonded to hydrogen Adams
  6. – a substance that decreases the activation energy needed to start a chemical reaction and as a result also increases the rate of chemical reaction
  7. acid – polymers that are made up of monomers called nucleotides
Down
  1. – nonpolar molecules that include fats oil's and cholesterol
  2. – smallest basic unit of matter
  3. – chemical reaction absorbs more energy than it releases
  4. – and Adam that has gained or lost one or more electrons
  5. – catalyst for chemical reactions in living things
  6. – two or more Atoms held together by covalent bonds
  7. Substances changed during the chemical reaction
  8. – a large molecule or macromolecule made of many monomers bonded together

15 Clues: – smallest basic unit of matter • Substances changed during the chemical reaction • – a polymer made of monomers called amino acids • – catalyst for chemical reactions in living things • – two or more Atoms held together by covalent bonds • acids – chains of carbon atoms bonded to hydrogen Adams • – chemical reaction absorbs more energy than it releases • ...

Ag 7.1 2025-10-27

Ag 7.1 crossword puzzle
Across
  1. made of two or more atoms bonded (connected) together
  2. pH of 7
  3. reaction in which temperature increases; energy is released
  4. pH of 0-6
  5. pH of 8-14
  6. the basic building blocks of matter; cannot be created, divided, or destroyed
  7. the new substances that are produced from a chemical reaction
  8. Atoms are ___________ during a chemical reaction.
Down
  1. reaction in which temperature decreases; energy is absorbed (taken in)
  2. anything that has mass & takes up space
  3. the original substances you start with before the chemical reaction occurs
  4. the science & art of growing plants & raising animals for food, fiber & fuel
  5. the amount of hydrogen (ions) a substance has
  6. ____________ of matter states that matter cannot be created or destroyed. It can only change form.

14 Clues: pH of 7 • pH of 0-6 • pH of 8-14 • anything that has mass & takes up space • the amount of hydrogen (ions) a substance has • Atoms are ___________ during a chemical reaction. • made of two or more atoms bonded (connected) together • reaction in which temperature increases; energy is released • the new substances that are produced from a chemical reaction • ...

Chemical Equations 2025-12-16

Chemical Equations crossword puzzle
Across
  1. the amount of exposed material that affects reaction rate
  2. substances that slow down a chemical reaction
  3. a symbolic representation of a chemical reaction
  4. a substance that speeds up a reaction without being used up
  5. a small number showing atom count
Down
  1. a starting substance in a chemical reaction
  2. a substance formed from a chemical reaction
  3. having equal atoms on both sides
  4. amount of product formed
  5. a number placed in front of a formula

10 Clues: amount of product formed • having equal atoms on both sides • a small number showing atom count • a number placed in front of a formula • a starting substance in a chemical reaction • a substance formed from a chemical reaction • substances that slow down a chemical reaction • a symbolic representation of a chemical reaction • ...

Chemical Equations 2025-12-16

Chemical Equations crossword puzzle
Across
  1. the amount of exposed material that affects reaction rate
  2. a substance that speeds up a reaction without being used up
  3. amount of product formed
  4. a substance formed from a chemical reaction
  5. a starting substance in a chemical reaction
  6. a symbolic representation of a chemical reaction
  7. substances that slow down a chemical reaction
Down
  1. a small number showing atom count
  2. a number placed in front of a formula
  3. having equal atoms on both sides

10 Clues: amount of product formed • having equal atoms on both sides • a small number showing atom count • a number placed in front of a formula • a substance formed from a chemical reaction • a starting substance in a chemical reaction • substances that slow down a chemical reaction • a symbolic representation of a chemical reaction • ...

WS Equilibrium 2024-04-22

WS Equilibrium crossword puzzle
Across
  1. the principle that in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction
  2. measures the relative amounts of products and reactants present during a reaction at a particular point in time
  3. a chemical reaction where the reactants form products that, in turn, react together to give the reactants back
  4. is the state of a system in which the rate of the forward reaction is equal to the rate of the reverse reaction
  5. expresses the relationship between products and reactants of a reaction at ___________ with respect to a specific unit
  6. heat is absorbed by the system from the surroundings
  7. the sum of the internal energy and the product of pressure and volume
  8. a system whose reactants, products, or both are in more than one phase is a
Down
  1. if heat is released by the system into the surroundings
  2. When the products and reactants of an equilibrium reaction form a single phase, whether gas or liquid, the system is a
  3. a substance that is present at the start of a chemical reaction
  4. is used in the manufacturing of ammonia from nitrogen and hydrogen, and then goes on to explain the reasons for the conditions used in the process
  5. the minimum energy that colliding particles must have in order to undergo a reaction
  6. states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium
  7. the time needed for a change in concentration to occur
  8. a natural physical system that does not allow transfer of matter in or out of the system
  9. a substance that is present at the end of a chemical reaction

17 Clues: heat is absorbed by the system from the surroundings • the time needed for a change in concentration to occur • if heat is released by the system into the surroundings • a substance that is present at the end of a chemical reaction • a substance that is present at the start of a chemical reaction • ...

Derek Perrin 2019-06-11

Derek Perrin crossword puzzle
Across
  1. 1S^1
  2. Water
  3. Number of atoms and the charge are the same for both sides of the reaction
  4. what you have starting out in a chemical equation
  5. Way of using formulas to indicate the chemicals in the reaction
  6. AB= A Plus B
  7. Stealing or Transfer of Electrons
  8. Two molecules switch with each other
  9. Number next to atom to show how much of it there is
  10. Involves fire,burning, and explosions
  11. A Plus B= AB
  12. What you have at the end of a chemical equation
  13. Rearrangement of molecular or ionic structure of a substance
  14. Solution in which the solvent is water
Down
  1. Show the bonding between molecules
  2. Symbolic representation of a chemical reaction
  3. Involved in Bonding
  4. One molecule switches with another one
  5. Negatively Charged Ion
  6. Sodium Chloride
  7. Sharing of Electrons
  8. Different Electron Levels
  9. Mass cannot be created or destroyed
  10. Positively Charged Ion

24 Clues: 1S^1 • Water • AB= A Plus B • A Plus B= AB • Sodium Chloride • Involved in Bonding • Sharing of Electrons • Negatively Charged Ion • Positively Charged Ion • Different Electron Levels • Stealing or Transfer of Electrons • Show the bonding between molecules • Mass cannot be created or destroyed • Two molecules switch with each other • Involves fire,burning, and explosions • ...