chemical reaction Crossword Puzzles
Stoichiometry Vocabulary 2014-02-20
Across
- 6.02x10^23 representative particles.
- The reactant that is not completely used up in the reaction.
- Mass and atoms are conserved in every chemical reaction.
- The amount of product that actually forms when the reaction is performed.
- The mass of one mole of an element or compound expressed in grams.
- A Reactant the determines the amount of product that can be formed by a reaction.
- A measure of the efficiency of hitting a baseball.
- Calculations of quantities in chemical reactions.
Down
- Atoms, molecules, ions, or formula units.
- The maximum amount of product that will form during a reaction.
- The SI unit for measuring the amount of a substance.
- Conversion factor derived from the coefficients of a balanced chemical equation interpreted in moles.
12 Clues: 6.02x10^23 representative particles. • Atoms, molecules, ions, or formula units. • Calculations of quantities in chemical reactions. • A measure of the efficiency of hitting a baseball. • The SI unit for measuring the amount of a substance. • Mass and atoms are conserved in every chemical reaction. • The reactant that is not completely used up in the reaction. • ...
Chemical Reaction Crossword 2020-03-20
9 Clues: AB -> A + B • A + B -> AB • A + BC -> AC + B • AB + CD -> AD + BC • CxHy + O2 -> CO2 + H2O • An equation made to represent a reaction • A list of elements organized by reactivity • The resulting elements/compounds of the reaction • The starting elements/compounds in a chemical equation
Chemical reaction starter 2021-05-14
Across
- a change that can not be undone or reversed
- toxic gas formed during incomplete combustion
- what you are starting with at the beginning of your reaction
- the smallest particle of an element
Down
- change in which atoms are rearranged to form new substances
- the simplest substances made up of only one type of atom
- solution that turns cloudy when it reacts with carbon dioxide
- what you are making in your chemical reaction
- type of combustion when there is plenty of oxygen
9 Clues: the smallest particle of an element • a change that can not be undone or reversed • what you are making in your chemical reaction • toxic gas formed during incomplete combustion • type of combustion when there is plenty of oxygen • the simplest substances made up of only one type of atom • change in which atoms are rearranged to form new substances • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Block 1 Crossword~Mia Cassady 2018-03-09
Across
- Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
- The amount of energy required to pull two bonded atoms apart.
- The minimum energy required in order for a chemical reaction to proceed.
- A measure of the acidity of a solution.
- Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration.
Down
- A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases.
- Description of a chemical reaction in which there is a net absorption of energy.
- Description of a solution in which the hydroxide ion concentration is high than the hydronium ion concentration.
- A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
- Description of a chemical reaction in which there is a net release of energy.
10 Clues: A measure of the acidity of a solution. • The amount of energy required to pull two bonded atoms apart. • The minimum energy required in order for a chemical reaction to proceed. • Description of a chemical reaction in which there is a net release of energy. • Description of a chemical reaction in which there is a net absorption of energy. • ...
SOPHIA HOTTON 3RD SCIENCE JONES CROSSWORD PUZZLE 2025-02-13
Across
- This happens when plasma goes back to the gaseous state
- The total kinetic energy of the tiny particles that makeup matter; the faster the particles move the warmer the matter becomes
- This is an exothermic reaction that happens when it is lit by a match or lighter and produces light and heat.
Down
- This is an example of an endothermic reaction that has to do with how plants absorb sunlight and make it into food.
- A substance produced during a chemical reaction
- A chemical reaction in which heat is absorbed
- reaction the process by which one or more substances change to produce one or more different substances
- A chemical reaction in which heat is released
- A substance that takes part in and undergoes change during a chemical reaction
- The state of matter that moves faster than a gas and has electricity running through it
10 Clues: A chemical reaction in which heat is absorbed • A chemical reaction in which heat is released • A substance produced during a chemical reaction • This happens when plasma goes back to the gaseous state • A substance that takes part in and undergoes change during a chemical reaction • ...
Jason Babatido 2022-03-08
Across
- study of ratios within chemical reactions
- maximum possible mass of a product that can be made in a chemical reaction
- reaction between substances that results in the production of new substances
Down
- the reactant that limits how much of a product that can be made
- mass of a product that was obtained out of the maximum possible mass
- mass of one mole of a substance
- symbolic representation of a chemical reaction in the form of symbols
- the results of a chemical reaction between substances
- 6.02x10^23 chemical units of a substance
- relation between amounts between substances
10 Clues: mass of one mole of a substance • 6.02x10^23 chemical units of a substance • study of ratios within chemical reactions • relation between amounts between substances • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...
Biomolecules and Enzymes 2020-10-22
Across
- A catalyst that brings about a specific biochemical reaction.
- a molecule composed of amino acids joined together by peptide bonds
- is a fat or fatty acid in which there is one or more double bond in the fatty acid chain
- elements or compounds that enter into a chemical reaction
- elements or compounds produced by chemical reactions
- They are polymers made up of many monosaccharides
- sugar (a carbohydrate) composed of two monosaccharides
- important component of lipids
Down
- consists of three molecules of fatty acid combined with a molecule of the glycerol
- The basic building block of nucleic acids such as DNA and RNA. An organic compound made up of a nitrogen base, sugar, and phosphate group.
- a single atom or molecule which is able to join with other monomers to make new substances called polymers.
- the simplest form of carbohydrates. They include sugars such as glucose and fructose
- reactant of an enzyme catalyzed reaction
- process modifying the molecular structure of a protein.
- process that changes, transforms, one set of chemicals into another set of chemicals
- part of the enzyme where the substrate binds is called the active site
- energy input that is needed for a reaction to begin
- molecules that have no double bonds between carbon molecules because they are saturated with hydrogen molecules.
- simple organic compound containing both a carboxyl and an amino group. The building blocks for proteins.
- substance that speeds up the rate of a chemical reaction
20 Clues: important component of lipids • reactant of an enzyme catalyzed reaction • They are polymers made up of many monosaccharides • energy input that is needed for a reaction to begin • elements or compounds produced by chemical reactions • sugar (a carbohydrate) composed of two monosaccharides • process modifying the molecular structure of a protein. • ...
CHEM GRID 2023-12-13
Across
- Heterocyclic compound used for the oxidation of alcohol to form carbonyls.
- Double reciprocal plot used in enzyme kinetics.
- One of the spectroscopic technique which relies upon the scattering of photons.
- Determination of amino acids containing an aromatic nucleus.
- Member of s-block, which gives violet or light purple colour flame.
- A foul-smelling diamine produced by putrefaction of dead animal tissue.
- He is known for his pioneering studies of radioactivity and the atom.
- Toxic gas used in the production of insecticide sevin.
- He has won two undivided Nobel Prizes, he used quantum mechanics to understand the chemical bonding.
Down
- He is known for his work on stereoselective reactions and click chemistry.
- Temperature and volume will be directly proportional at constant pressure.
- Analytical technique used for separating of mixture of chemical substances into its individual components.
- Acetamide when treated with bromine in aqueous solution of KOH methyl amine is produced, with this as the intermediate
- It is a reaction in which addition of zinc enolates to aldehydes or ketones to form beta hydroxyesters takes place.
- Chemical reaction used for the ortho-formylation of phenols.
- Reaction of enol or enolate ion with carbonyl compounds to form beta-hydroxyketone or beta-hydroxyaldehyde.
- Geometry of boron trifluoride.
- Sulphur containing amino acid.
- A dipolar charge separated intermediate species in Wittig reaction.
- It is a oxygen insertion reaction, resulting in esters from ketone using peroxyacids.
20 Clues: Geometry of boron trifluoride. • Sulphur containing amino acid. • Double reciprocal plot used in enzyme kinetics. • Toxic gas used in the production of insecticide sevin. • Chemical reaction used for the ortho-formylation of phenols. • Determination of amino acids containing an aromatic nucleus. • Member of s-block, which gives violet or light purple colour flame. • ...
Chemistry Fun 2025-12-17
Across
- A type of bond formed by the transfer of electrons between a metal and a nonmetal.
- The group 17 elements that are highly reactive nonmetals.
- A substance that speeds up a chemical reaction without being consumed.
- Molecules with the same molecular formula but different structural arrangements.
- The name for electrons in the outermost shell of an atom.
- The emission of light by a substance without combustion or perceptible heat.
- The substance in a solution that does the dissolving (usually water).
- The process in which an atom loses electrons during a reaction.
- A measure of how strongly an atom attracts electrons in a chemical bond.
- An insoluble solid that forms and settles out of a liquid mixture.
- The process in which an atom gains electrons during a reaction.
Down
- The subatomic particle that determines an element's identity.
- The SI unit used to measure the amount of a substance (6.022×1023 particles).
- A technique used to determine the concentration of an unknown solution.
- Atoms of the same element with different numbers of neutrons.
- A reaction that absorbs energy from the surroundings.
- A type of bond where electrons are shared between two nonmetals.
- A reaction that releases energy in the form of heat to the surroundings.
- Different physical forms in which an element can exist (e.g., graphite vs. diamond).
- The law stating that physical and chemical properties of elements recur in a predictable way.
20 Clues: A reaction that absorbs energy from the surroundings. • The group 17 elements that are highly reactive nonmetals. • The name for electrons in the outermost shell of an atom. • The subatomic particle that determines an element's identity. • Atoms of the same element with different numbers of neutrons. • ...
Jason Babatido 2022-03-08
Across
- study of ratios within chemical reactions
- maximum possible mass of a product that can be made in a chemical reaction
- reaction between substances that results in the production of new substances
Down
- the reactant that limits how much of a product that can be made
- mass of a product that was obtained out of the maximum possible mass
- mass of one mole of a substance
- symbolic representation of a chemical reaction in the form of symbols
- the results of a chemical reaction between substances
- 6.02x10^23 chemical units of a substance
- relation between amounts between substances
10 Clues: mass of one mole of a substance • 6.02x10^23 chemical units of a substance • study of ratios within chemical reactions • relation between amounts between substances • the results of a chemical reaction between substances • the reactant that limits how much of a product that can be made • mass of a product that was obtained out of the maximum possible mass • ...
CHEM 2: Thermochemistry Terms 2023-10-23
Across
- The SI unit of energy
- The coldest possible temperature
- The amount of energy needed to raise 1 g of a substance by 1 degree Celsius
- A chemical reaction during which energy is released
Down
- A chemical reaction during which energy is absorbed
- The study of energy transfer in chemical reactions and physical changes
- The environment of a chemical reaction
- The "focus" of a chemical reaction
- Calculations around the transfer of energy between two objects in contact with each other
- The amount of energy needed to raise the temperature of a substance by 1 degree Celsius
10 Clues: The SI unit of energy • The coldest possible temperature • The "focus" of a chemical reaction • The environment of a chemical reaction • A chemical reaction during which energy is absorbed • A chemical reaction during which energy is released • The study of energy transfer in chemical reactions and physical changes • ...
Ch. 13 Crossword by Katie Hoffman 2020-10-14
Across
- Bond energy is also known as _____.
- A chemical that accepts a hydrogen ion.
- same rate.
- Concentration, temperature, pressure, catalysts, and surface area/shape all affect _____.
Down
- When reaction and it’s reverse act at
- Something that lowers activation energy in a chemical reaction to speed up the reaction.
- _____ can behave as a base or an acid.
- In an _____ reaction there is a net release of energy.
- In an _____ reaction there is a net absorption of energy.
- A chemical that donates a hydrogen ion.
10 Clues: same rate. • Bond energy is also known as _____. • When reaction and it’s reverse act at • _____ can behave as a base or an acid. • A chemical that accepts a hydrogen ion. • A chemical that donates a hydrogen ion. • In an _____ reaction there is a net release of energy. • In an _____ reaction there is a net absorption of energy. • ...
Language of Chemistry 2023-02-14
Across
- The gas with rotten egg smell.
- the substance that takes part in a chemical reaction
- The gas that rekindles a glowing splinter.
- An insoluble solid formed during the reaction
Down
- the substances formed during the chemical reaction
- The substance that alters the rate of the chemical reaction without taking part in it.
- The reaction in which heat is released.
- The gas formed when zinc reacts with hydrochloric acid
- The colour of the residue formed when copper carbonate is heated.
- Carbon dioxide turns ______ milky.
10 Clues: The gas with rotten egg smell. • Carbon dioxide turns ______ milky. • The reaction in which heat is released. • The gas that rekindles a glowing splinter. • An insoluble solid formed during the reaction • the substances formed during the chemical reaction • the substance that takes part in a chemical reaction • The gas formed when zinc reacts with hydrochloric acid • ...
Synthesis of β‑Lactams 2024-04-18
Across
- A reaction in which one or more atoms replace another atom or group of atoms in a molecule.
- A plan of action designed to achieve a long-term or overall aim. (noun)
- A type of chemical reaction in which two molecules are combined to form a single molecule .
- Medicines that fight bacterial infections in people and animals. (noun)
- A molecular entity arising within the sequence of a stepwise chemical reaction (noun)
- To change in composition or structure. Synonyms: convert, remodel, redesign (verb)
- The removal (transfer) of a proton from a compound. (noun)
- Capable of catching or being set on fire. (adjective) (noun)
- An electromagnetic radiation with wavelengths longer than that of visible light but shorter than microwaves. (noun)
Down
- Produced by humans rather than natural processes. Synonyms: artificial, man-made. (adjective)
- A reactant that donates a pair of electrons to form a new covalent bond. (noun)
- The process to create polymers. (noun)
- A mechanism step or reaction in which an atom or group migrates from one carbon atom to another. (noun)
- A substance that increase the reaction rate of a chemical reaction without being consumed in the process. (noun)
- Compound that are formed from a similar compound. (noun)
15 Clues: The process to create polymers. (noun) • Compound that are formed from a similar compound. (noun) • The removal (transfer) of a proton from a compound. (noun) • Capable of catching or being set on fire. (adjective) (noun) • A plan of action designed to achieve a long-term or overall aim. (noun) • ...
key terms 2023-09-21
Across
- chemical substance that is present at the start of a chemical reaction
- the smallest component of an element having the chemical properties of the element
- lasting attraction between atoms or ions
- a change of materials into another, new materials
- the process of diffusing; the intermingling of molecules in gases and liquids
- process of going into solution
- substances that react with acids
- essential structural component of living cells
- a chemical substance formed as a result of a chemical reaction
- a thermodynamic quantity representing the amount of energy in a system
- the material involved in the change is structurally the same before and after the change
- the degree of hotness or coldness of a body or environment
- an essential structural component of living cells and source of energy for animals
- several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
- the simplest structural unit of an element or compound
- organic compounds that contain both amino and carboxylic acid
Down
- a substance formed by chemical union of two or more elements
- fibrous band of scar tissue that binds together
- a substance that stops an activity
- the intermolecular force that holds together the molecules in a solid or liquid
- any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
- a substance that initiates or accelerates a chemical reaction without itself being affected
- a chemical substance that cannot be broken down into other substances.
- white crystalline carbohydrate used as a sweetener and preservative
- the capacity of a physical system to do work
- characterized by opposite extremes
- any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements
- that which has mass and occupies space
- the basic structural unit of nucleic acids
29 Clues: process of going into solution • substances that react with acids • a substance that stops an activity • characterized by opposite extremes • that which has mass and occupies space • lasting attraction between atoms or ions • the basic structural unit of nucleic acids • the capacity of a physical system to do work • essential structural component of living cells • ...
eddie 2.1 vocab 2021-10-26
Across
- chemical reaction that gives off heat energy
- the substance present before a chemical change occurs
- a chemical reaction that absorbs heat energy
- a chemical reaction
Down
- a chemical change
- the substances formed during a chemical reaction
- a change in matter that does not affect its chemical composition
- material that has mass and takes up space
8 Clues: a chemical change • a chemical reaction • material that has mass and takes up space • chemical reaction that gives off heat energy • a chemical reaction that absorbs heat energy • the substances formed during a chemical reaction • the substance present before a chemical change occurs • a change in matter that does not affect its chemical composition
Chemical Reactions 2025-10-20
Across
- A measure of how much solute can dissolve in a given solvent at a given temperature
- change A change in which one or more substances combine or break apart to form new substances
- The part of a solution that is usually present in the largest amount and dissolves a solute
- A substance that enters into a chemical reaction
- The part of a solution that is dissolved by a solvent
- When one substance completely disappears into another substance to form a solution
- A substance formed as a result of a chemical reaction
- Two or more substances together in the same place but their atoms are not chemically bonded
Down
- change A change that alters the form or appearance of a material but does not make the material into another substance
- A mixture in which particles can be seen and easily separated by settling or filtration
- reaction A reaction that releases energy, usually in the form of heat
- A mixture in which one substance is dissolved in another
- How quickly something occurs
- A mixture containing small, undissolved particles that do not settle out
- reaction A reaction that absorbs energy
15 Clues: How quickly something occurs • reaction A reaction that absorbs energy • A substance that enters into a chemical reaction • The part of a solution that is dissolved by a solvent • A substance formed as a result of a chemical reaction • A mixture in which one substance is dissolved in another • reaction A reaction that releases energy, usually in the form of heat • ...
Chemistry 2021-04-05
Across
- A type of combustion carried out by all living things
- A substance that turns litmus paper red and tastes sour
- A substance that turns litmus paper blur and tastes bitter
- A chemical reaction that is caused when an acid and a base is mixed
- A reaction where two solutions combine to form a precipitate
- combustion A substance burning in less oxygen
- A metal reacting with oxygen
- A reaction that releases heat energy
- dioxide A gas that turns lime water milky and cloudy
Down
- Something that gives a visual sign of an acid/base
- Burning a substance in oxygen
- rain Precipitation with high level of nitric acid or sulphuric acid
- A reaction that absorbs heat energy
- A gas that is tested by a pop test
- A fundamental and basic building block of matter
- A gas that is tested by bringing a glowing splint in front of a test tube and it starts burning
- reaction Substances react to form new substances by rearranging atoms
17 Clues: A metal reacting with oxygen • Burning a substance in oxygen • A gas that is tested by a pop test • A reaction that absorbs heat energy • A reaction that releases heat energy • combustion A substance burning in less oxygen • A fundamental and basic building block of matter • Something that gives a visual sign of an acid/base • ...
Discussion 2 Crossword Puzzle 2025-06-08
Across
- The process of gaining electrons in a chemical reaction.
- In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, which element is reduced?
- The name of a transition metal that often has a +2 or +3 charge.
- In Mg + 2HCl → MgCl₂ + H₂, what is reduced?
- The substances formed in a chemical reaction
Down
- The ratio of actual yield to theoretical yield times 100.
- If 16g of oxygen reacts with 2g of hydrogen, what is the limiting reactant?
- The percent yield formula compares actual and ___ yield
- Reaction where one element replaces another in a compound. Reaction between an acid and a base to form water and a salt.
- Reactant that is completely used up first, stopping the reaction.
- The name of the process where electrons are lost.
- Calculations of reactants and products in chemical reactions based on balanced equations.
12 Clues: In Mg + 2HCl → MgCl₂ + H₂, what is reduced? • The substances formed in a chemical reaction • The name of the process where electrons are lost. • The percent yield formula compares actual and ___ yield • The process of gaining electrons in a chemical reaction. • The ratio of actual yield to theoretical yield times 100. • ...
Chemistry Review 2017-02-12
Across
- (on the P.T.): a column of elements
- atomic particles found in the nucleus of atom and carry a positive charge (+)
- is a substance formed when two or more chemical elements are chemically bonded together. Two types of chemical bonds common in compounds are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios
- number: that always contains the same number of protons and electrons
- accompanied by the release of heat.
- a substance that takes part in and undergoes change during a reaction
- 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
- Gas: any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known
- Bohr: Danish physicist who proposed a theory for the hydrogen atom based on quantum theory.
- of Conservation of Mass: the number atoms present BEFORE and AFTER a reaction takes place is ALWAYS the same
- hard and solid and shiny, electricity, good conductors of heat, ductile, and malleable
- atomic particles found in the nucleus of atom and has no charge
Down
- a mark or character used as a conventional representation of an object, function, or process, e.g., the letter or letters standing for a chemical element or a character in musical notation.
- Mendeleev: Russian chemist who formulated the Periodic Law
- combination of two or more elements link together
- (on the P.T.): the side of a table
- is a substance that is formed when two or more chemicals react. When a chemical reaction takes place, a new substance is often created from the atoms or molecules of the original substances. There are often multiple products formed in a reaction
- a cause to be deposited in solid form from a solution
- brittle, not malleable or ductile, poor conductors of heat and electricity
- it is the most important part of an object, movement, or group, forming the basis for its activity and growth
- atomic particles that move around the nucleus of an atom and carry a negative charge (-)
- each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function
- electron: electrons in the outermost energy level of an atom
- it is a basic unit of a chemical element
- show both properties
- is a substance that is made up of one type of atom
26 Clues: show both properties • (on the P.T.): the side of a table • accompanied by the release of heat. • (on the P.T.): a column of elements • it is a basic unit of a chemical element • combination of two or more elements link together • is a substance that is made up of one type of atom • a cause to be deposited in solid form from a solution • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Chapter 2 crossword 1 2014-11-18
Across
- - anything that has mass and occupies space
- - The nucleobase of a nucleotide involved in base pairing, as of a DNA or RNA polymer
- - a subatomic particle of about the same mass as a proton but without an electric charge
- - the fixed amount of energy that a system described by quantum mechanics
- - A material made up of two or more parts or elements
- - a substance that takes part in and undergoes change during a reaction
- - oxidation reactions include all chemical reactions in which atoms have their oxidation state changed
- - a measure of how acidic or basic a substance is
- - a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion.
- - smallest component of an element having the chemical properties of the element
Down
- - a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge
- - having the properties of an alkali, or containing alkali; having a pH greater than 7
- - the minor component in a solution, dissolved in the solven
- - a close gathering of people or things
- - a stable subatomic particle with a charge of negative electricity
- - a metabolic or chemical process accompanied by the release of energy
- - any chemical reaction that involves the gaining of electrons
- - something that binds, fastens, confines, or holds together
- - the ability to work
- ion - the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids
- - the liquid in which a solute is dissolved to form a solution
- - a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
22 Clues: - the ability to work • - a close gathering of people or things • - anything that has mass and occupies space • - a measure of how acidic or basic a substance is • - A material made up of two or more parts or elements • - the minor component in a solution, dissolved in the solven • - something that binds, fastens, confines, or holds together • ...
Chemistry and plants 2014-03-25
Across
- Number number of protons in an atom
- a factory that contains chlorophyll to carry out photosynthesis
- Contains half the information for a new plant
- tablean arrangement of all known elements in order of their size and structure
- Male part of a flower
- cells Cells that cause the stomata to open & close
- substances containing only one type of atom
- Green chemical in chloroplasts inside cells in the leaves used for photosynthesis
- Small hole under the leaf to allow gas exchange
- how plants are put into groups with similar structures
- or more atoms joined together
- space for storing glucose, water and other nutrients
- a chemical breaks apart into 2 or more chemicals in a reaction
- chemicals made by the equation
- cycle How carbon atoms are used and recycled
- solid produced when 2 liquids react
- study of matter and how it behaves
- bundles Bundle of tubes that are joined from roots to the leaves.
- dispersal how the seeds are designed to be moved away from the parent tree.
- How water moves through a plant
- of reactionhow fast a reaction happens
- or more molecules or compounds
- Living things with roots, stems and leaves that produce their own food
- Female part of the flower
- particles in an atom found in the nucleus
- equationshows what chemical are at the start and at the end of a reaction
- plant material used for building cells
- contains all the recipes and instructions for making new plant chemicals
- Colored parts of the flower to attract insects
- Large molecule made with lots of sugar molecules joining together
Down
- Tubes that carry plant food
- contains lots of small factories to process food, wastes and new chemical for growth
- changechange in appearance, easily reversible
- or more different atoms joined together
- a group of flowering plants eg grasses that have 1 seed leaf
- A way of storing nutrients for the seeds.
- food made by plants ( type of sugar)
- Tubes that carry water up a plant
- Numbernumber of protons plus neutrons in an atom
- contains the egg
- chemicals swap partners in a reaction
- a group of flowering plants eg trees & shrubs that have 2 seed leaves.
- hairs Microscopic tubes that collect water and nutrients from the soil
- process of gaining knowledge by observation and experiment
- particles in an atom found in the nucleus
- 2 smaller chemicals join in a reaction
- + O2 → CO2 + H2O + energy
- negative particles orbiting the nucleus
- How all living things turn food & O2 into energy. Happens 24/7
- Process that plants use to make their own food & oxygen
- reaction with oxygen ( burning )
- chemicals used at the start of the reaction
- changenew chemical formed, not easily reversed
- + CO2 + H2O → Food ( glucose) + O2
- chemicals are made
- of mass mass is always the same at the start and end of a reaction
- effect Gases like water vapor and carbon dioxide trap heat and keep the earth warm.
- atom containing an equal number of protons and electrons is electrically neutral.
- wall rigid wall that supports the cell
- Contains half the information for a new plant
60 Clues: contains the egg • chemicals are made • Male part of a flower • + O2 → CO2 + H2O + energy • Female part of the flower • Tubes that carry plant food • or more atoms joined together • chemicals made by the equation • or more molecules or compounds • How water moves through a plant • reaction with oxygen ( burning ) • Tubes that carry water up a plant • ...
Chemistry and plants 2014-03-25
Across
- neutral particles in an atom found in the nucleus
- two or more atoms joined together
- 2 or more molecules or compounds
- effect Gases like water vapor and carbon dioxide trap heat and keep the earth warm.
- of reactionhow fast a reaction happens
- Green chemical in chloroplasts inside cells in the leaves used for photosynthesis
- plant material used for building cells
- table an arrangement of all known elements in order of their size and structure
- a group of flowering plants eg grasses that have 1 seed leaf
- Living things with roots, stems and leaves that produce their own food
- atom containing an equal number of protons and electrons is electrically neutral.
- of mass mass is always the same at the start and end of a reaction
- when a chemical breaks apart into 2 or more chemicals in a reaction
- how plants are put into groups with similar structures
- when chemicals swap partners in a reaction
- contains all the recipes and instructions for making new plant chemicals
- space for storing glucose, water and other nutrients
- number of protons plus neutrons in an atom
- contains lots of small factories to process food, wastes and new chemical for growth
- + CO2 + H2O → Food ( glucose) + O2
- wall rigid wall that supports the cell
- positive particles in an atom found in the nucleus
- the process of gaining knowledge by observation and experiment
- a group of flowering plants eg trees & shrubs that have 2 seed leaves.
- Tubes that carry plant food
- contains the egg
- hairs Microscopic tubes that collect water and nutrients from the soil
- Tubes that carry water up a plant
- Contains half the information for a new plant
- cells Cells that cause the stomata to open & close
Down
- dispersal how the seeds are designed to be moved away from the parent tree.
- the chemicals used at the start of the reaction
- smaller negative particles orbiting the nucleus
- Male part of a flower
- change new chemical formed, not easily reversed
- A way of storing nutrients for the seeds.
- bundles of tubes that are joined from roots to the leaves.
- Contains half the information for a new plant
- the solid produced when 2 liquids react
- How all living things turn food & O2 into energy. Happens 24/7
- How water moves through a plant
- when 2 smaller chemicals join in a reaction
- equation shows what chemical are at the start and at the end of a reaction
- the chemicals made by the equation
- Process that plants use to make their own food & oxygen
- the study of matter and how it behaves
- a factory that contains chlorophyll to carry out photosynthesis
- pure substances containing only one type of atom
- new chemicals are made
- change in appearance, easily reversible
- a reaction with oxygen ( burning )
- Large molecule made with lots of sugar molecules joining together
- 2 or more different atoms joined together
- number of protons in an atom
- food made by plants ( type of sugar)
- Small hole under the leaf to allow gas exchange
- cycle How carbon atoms are used and recycled
- Female part of the flower
- Colored parts of the flower to attract insects
- + O2 → CO2 + H2O + energy
60 Clues: contains the egg • Male part of a flower • Female part of the flower • + O2 → CO2 + H2O + energy • new chemicals are made • Tubes that carry plant food • number of protons in an atom • How water moves through a plant • Tubes that carry water up a plant • + CO2 + H2O → Food ( glucose) + O2 • food made by plants ( type of sugar) • two or more atoms joined together • ...
Chapter 8 2025-02-13
10 Clues: heat pack • cold pack • Releases heat • exothermic reaction • endothermic reaction • total kinetic energy • Absorbs heat and energy • the ending result of a chemical reaction • a substance that takes part in a chemical reaction • the process of energy moving from one place or object to another
G6 Chemical Equation 2025-12-16
Across
- Two or more atoms held together by chemical bonds.
- Uses chemical formulas to model what happens in a chemical reaction.
- Substance present after the chemical reaction.
- Repeated units that give crystal structure.
- is a number placed in front of a chemical formula to show how many molecules of the substance are represented in the chemical equation.
- substance are those that can be observed or measured without changing the substance’s identity.
Down
- Is the process in which atoms are rearranged to produce different substances.
- A number below and to the right of the symbol, shows how many atoms of that element there are.
- states that matter cannot be created or destroyed in ordinary chemical or physical changes.
- A type of matter that can't be separated physically such as water.
- can be determined by observing whether or not a substance can change into another substance under a given set of conditions.
- A combination of chemical symbols and numbers that is used to represent a single unit of a substance
- Substance present before the chemical reaction occurs.
13 Clues: Repeated units that give crystal structure. • Substance present after the chemical reaction. • Two or more atoms held together by chemical bonds. • Substance present before the chemical reaction occurs. • A type of matter that can't be separated physically such as water. • Uses chemical formulas to model what happens in a chemical reaction. • ...
Organic Chemistry 2022-01-26
Across
- Aromatic hydrocarbons
- A substance that enters into and is altered in the course of a chemical reaction
- Chemical bond dissociation of a molecular bond by a process where each of the fragments retain one of the originally bonded electrons
- A molecular fragment that departs with a pair of electrons in heterolytic bond clevage
- A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangements of atoms
- used in mechanisms to show the various electron pairs moving around
Down
- The process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species
- Another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them
- A chemical reaction during which one functional group in a chemical compound is replaced by another functional group
- A reaction in which two or more molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or methanol
- A chemical species that forms bonds with electrophiles by donating an electron pair
- Any organic chemical compound in which the atoms are connected by single, double, or triple bonds to form nonaromatic structures
- A formula which shows the arrangement of atoms in the molecule of a compound
- An organic reaction where 2+ molecules combine to form a larger one
- A chemical species that forms bonds with nucleophiles by accepting an electron pair
15 Clues: Aromatic hydrocarbons • An organic reaction where 2+ molecules combine to form a larger one • used in mechanisms to show the various electron pairs moving around • A formula which shows the arrangement of atoms in the molecule of a compound • A substance that enters into and is altered in the course of a chemical reaction • ...
8.1.5 Vocabulary 2024-09-02
Across
- - representation of a chemical reaction using chemical symbols, subscripts, and coefficients
- - produced by a chemical reaction
- - exchanges occur across system boundaries
- - number written slightly below and to the right of a chemical symbol
- - according to the law _____ cannot be created or destroyed
Down
- - number in front of a chemical formula
- - exchanges do not occur across boundaries
- - enters into a chemical reaction
- - to produce
9 Clues: - to produce • - produced by a chemical reaction • - enters into a chemical reaction • - number in front of a chemical formula • - exchanges do not occur across boundaries • - exchanges occur across system boundaries • - according to the law _____ cannot be created or destroyed • - number written slightly below and to the right of a chemical symbol • ...
CHEMICAL REACTION 2024-11-15
Across
- the species formed from chemical reactions
- The interaction between substances leads to the rearrangement of atoms or molecules, resulting in the formation of new substances.
- used in electric signs and fluorescent lamps
Down
- a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
- the number of atoms of the element
- substance that takes part in and undergoes change during a reaction.
6 Clues: the number of atoms of the element • the species formed from chemical reactions • used in electric signs and fluorescent lamps • substance that takes part in and undergoes change during a reaction. • a numerical or constant quantity placed before and multiplying the variable in an algebraic expression • ...
Revision 2023-12-07
11 Clues: chemical symbol O • chemical symbol K • Chemical symbol Na • chemically symbol He • releasing heat energy • absorbing heat energy • Another word for burning • Another word breaking down • what is made during a reaction • what reacts together during a reaction • Two or more elements chemically combined
Thermochemistry 2022-12-11
Across
- releases energy
- standard unit of heat and energy
- solid to gas
- measure of randomness
- molecules reach a balance between evaporation and condensation
- reaction is the amount of heat gained or lost in a chemical reaction
- study of heat changes during a chemical reaction
- equal to freezing point
Down
- temp of liquid equals external pressure
- heat the amount of heat required
- ability to do work
- absorbs energy
- temperature change
13 Clues: solid to gas • absorbs energy • releases energy • ability to do work • temperature change • measure of randomness • equal to freezing point • standard unit of heat and energy • heat the amount of heat required • temp of liquid equals external pressure • study of heat changes during a chemical reaction • molecules reach a balance between evaporation and condensation • ...
vocab for matter 2025-04-28
Across
- when reactants change to a different substance
- the study of how matter reacts with energy and matter
- the end product of a chemical reaction
- what makes up chemical elements
- how much space a object takes up
- a property that can be sensed with the 5 senses
- when something releases heat into it surroundings
- two or more atoms stuck together
Down
- when two objects stick together
- anything that can be weighed and takes up space
- the thing that goes through chemical changes
- something that is made up of atoms bonded together
- how hot or cold something is
- how much matter something has
- the ability to do work
- when a chemical changes to a different substance
- a form of energy between two different temps.
- something that can't be broken down any more
18 Clues: the ability to do work • how hot or cold something is • how much matter something has • when two objects stick together • what makes up chemical elements • how much space a object takes up • two or more atoms stuck together • the end product of a chemical reaction • the thing that goes through chemical changes • something that can't be broken down any more • ...
Chemical Reactions and Equations 2024-05-11
Across
- Another word for synthesis reaction
- A reaction where reaction and oxidation happens.
- Type of decomposition using heat
- Type of decomposition using current
- Reaction when heat is absorbed
- one reactant is broken down to more products
- A reaction of form A+BC->AC+B
- A chemical change where reactants become products.
Down
- Type of decomposition used in black-white photos.
- Reaction when heat is evolved
- Least reactive metal
- A reaction of form AC+BD->AB+CD
- Reaction when fats and oils stay in open for long
- Slow destruction of metal when exposed to O2,etc
- Most reactive metal
15 Clues: Most reactive metal • Least reactive metal • Reaction when heat is evolved • A reaction of form A+BC->AC+B • Reaction when heat is absorbed • A reaction of form AC+BD->AB+CD • Type of decomposition using heat • Another word for synthesis reaction • Type of decomposition using current • one reactant is broken down to more products • ...
kyndra 2021-12-02
Across
- This reaction has a net release of energy
- how quickly the concentration reactantans decreases and how quickly the concentration products increase.
- type of aci
- type of chemical reaction
- This reaction has a net absorption of energy.
- reading left to right,Balance one element at a time.
Down
- type of equations.
- A way reaction rates are affected.
- type of acid that don´t ionize water
- new colors appear when this happens to a substance.
- This is also known as activation energy
- substance that lowers the activation energy of a chemical reaction.
12 Clues: type of aci • type of equations. • type of chemical reaction • A way reaction rates are affected. • type of acid that don´t ionize water • This is also known as activation energy • This reaction has a net release of energy • This reaction has a net absorption of energy. • new colors appear when this happens to a substance. • ...
Bonding and Naming crossword puzzle 2018-09-11
Across
- change of one substance in to a new substance
- positive or negative number that indicates how many electrons an atom has gained, lost or shared to become stable
- process in which one or more substances are changed into new substances
- the force of attraction between the opposite charges of the ions in an ionic compound
- covalent bond in which the electrons are not shared equally, resulting in a slightly positive end and a slightly negative end
- the process of a solid changing directly to a vapor without forming a liquid
- compound that that is composed of two electrons
- a neutral particle that forms as a result of electron sharing among atoms
- the temperature at which the pressure of the vapor of a liquid is equal to the external pressure acting on the surface of the liquid
- temperature at which a solid begins to liquefy
Down
- any change in size, shape, or state of matter in which the identity of the substances remains the same
- in a chemical reaction, the new substance or substance formed
- attraction formed between atoms when they share electrons
- chemical shorthand that uses symbols to tell what elements are in a compound and Meir ratios
- positivity or negatively charged, covalent bonded group of atoms
- with enough energy to overcome the attractive forces within its atom, composed of positively and negatively charged particles
- charged particle that has either more or fewer electrons than protons
- a covalent bond in which electrons equally by both atoms
- force that holds atoms together in a compound
- in a chemical reaction, the substances that reacts
20 Clues: change of one substance in to a new substance • force that holds atoms together in a compound • temperature at which a solid begins to liquefy • compound that that is composed of two electrons • in a chemical reaction, the substances that reacts • a covalent bond in which electrons equally by both atoms • attraction formed between atoms when they share electrons • ...
Intro to Photosynthesis 2025-11-02
Across
- A chemical reaction during which plants convert radiant energy from the Sun to chemical energy; the reaction converts carbon dioxide and water into sugar (glucose) and oxygen
- A substance that takes part in and undergoes change during a chemical reaction
- A substance produced during a chemical reaction
- Type of Reaction where one or more substances change to produce one or more different substances
Down
- What plants absorb through their leaves to have the energy to do photosynthesis
- What humans breathe that plants absorb to do photosynthesis
- A sugar composed of six carbon atoms that is the preferred energy source for most cells; produced by photosynthesis
- What plants make that humans breathe
- What plants take in through their roots to stay alive and do photosynthesis
- The ability of a system to do work; required for changes to happen within a system
- A membrane-bound organelle in plants that is the site of photosynthesis
11 Clues: What plants make that humans breathe • A substance produced during a chemical reaction • What humans breathe that plants absorb to do photosynthesis • A membrane-bound organelle in plants that is the site of photosynthesis • What plants take in through their roots to stay alive and do photosynthesis • ...
physical science review 2024-05-03
Across
- The center of an atom, containing protons and neutrons.
- A measure of the average kinetic energy of particles in a substance. TEMPERATURE
- NUMBER The number of protons in an atom's nucleus, identifying its element. ATOMIC NUMBER
- A substance that speeds up a chemical reaction but is not consumed in the process.
- The state of matter with a definite shape and volume.
- A type of bond formed when atoms share electrons.
Down
- REACTION The process in which atoms rearrange to form new substances. CHEMICAL REACTION
- A solution that cannot dissolve more solute at a given temperature.
- The smallest particle of an element that retains its properties.
- The attraction of an atom for shared electrons in a bond.
- OF CONSERVATION OF MASS The principle stating that matter is neither created nor destroyed in a chemical reaction. LAW OF CONSERVATION OF MASS
- A substance formed by the chemical combination of two or more elements in specific proportions. COMPOUND
12 Clues: A type of bond formed when atoms share electrons. • The state of matter with a definite shape and volume. • The center of an atom, containing protons and neutrons. • The attraction of an atom for shared electrons in a bond. • The smallest particle of an element that retains its properties. • A solution that cannot dissolve more solute at a given temperature. • ...
Biology Unit 2 Crossword puzzle for Ms. Tucker 2023-01-23
Across
- A molecule that can be bonded to other identical molecules to form a polymer
- a specific reactant acted upon by an enzyme.
- a substance that speeds up the rate of a chemical reaction
- Building blocks of nucleic acid, made of 5 carbon sugar, phosphate, and a nitrogenous base (Adenine, Thymine, Guanine, or Cytosine).
- a chemical substance that takes part in and undergoes change during a reaction.
Down
- Amino acids are the monomers of these.
- A substance that has a molecular structure consisting of similar units bonded together
- The chemical processes that occur within a living organism in order to maintain life.
- A type of protein that speeds up a chemical reaction in a living thing.
- A compound made up of Carbon, Hydrogen, and Oxygen with a ratio of (1:2:1), main source of energy for humans.
- a substance produced in a chemical reaction
- Long term energy storage, cushioning for organs, and insulation.
12 Clues: Amino acids are the monomers of these. • a substance produced in a chemical reaction • a specific reactant acted upon by an enzyme. • a substance that speeds up the rate of a chemical reaction • Long term energy storage, cushioning for organs, and insulation. • A type of protein that speeds up a chemical reaction in a living thing. • ...
Chemistry, by Harper Norman 2025-03-25
Across
- Molecules are not evenly distributed
- The type of change that changes the chemical formulas of matter
- A substance that can react with stone
- A substance that causes chemical changes and creates salt water with acid
- The measure of how acidic or basic water is
- A pure substance that can’t be separated into a simpler substance and is made of one type of atom.
- Atoms are _____ in a chemical reaction.
- The type of change that only affects the physical properties of matter
- The final result of a chemical reaction
Down
- Matter that is two or more pure substances combined.
- The most neutral substance on the pH scale
- A substance that takes part in a chemical change
- Molecules are all mixed up evenly
- Atoms of two or more different elements combined
- Smallest unit of an element
- Anything that has mass and takes up space
16 Clues: Smallest unit of an element • Molecules are all mixed up evenly • Molecules are not evenly distributed • A substance that can react with stone • Atoms are _____ in a chemical reaction. • The final result of a chemical reaction • Anything that has mass and takes up space • The most neutral substance on the pH scale • The measure of how acidic or basic water is • ...
Arthurs Science Vocab 2024-05-16
Across
- The amount of matter in an object
- What is formed after a chemical reaction
- A part of natural resources that works with properties of substances that change
- The substances that react in the chemical reactions
- The opposite of physical change
- The amount of space an object takes up
- Describes climate of hot or cold
- The transfer of thermal energy
Down
- A characteristic you can see during a physical change
- The opposite of chemical change
- Combinations of substances
- A characteristic you can see during a chemical change
- An interaction between two chemicals and what they do
- A force between two portions of a substance
- The smallest unit in an element
- Something that has mass and takes up space
- Something made up of atoms
- The ability to do things
18 Clues: The ability to do things • Combinations of substances • Something made up of atoms • The transfer of thermal energy • The opposite of chemical change • The smallest unit in an element • The opposite of physical change • Describes climate of hot or cold • The amount of matter in an object • The amount of space an object takes up • What is formed after a chemical reaction • ...
Chapter 5 Enzymes 2024-12-05
Across
- enzyme made of
- enzyme digest fats/lipid/oil to glycerol and fatty acids
- when the substrate binds to the active site of the enzyme
- enzyme digest maltose to glucose
- each enzyme has a groove (depression) on its surface
- enzyme digest protein to amino acids
- word ending of an enzyme name
- effect of temperature of the rate of enzyme reaction above 60 degree Celcius
Down
- only substrate can fit into the active site
- the substance on which enzymes act
- effect of pH on the rate of enzyme reaction if the pH 4 or above 9
- a substance that can increase the rate of chemical reaction, without being chemically changed by reaction
- biological catalyst that can increase the rate of a chemical reaction, without being chemically changed by the reaction.
- the process of breaking down food molecules into smaller substances
- effect of temperature on the rate of enzyme reaction at low temperature
- enzyme digests starch to maltose
- the change in the three-dimensional structure of an enzyme or any other solutution protein caused by heat or chemicals.
17 Clues: enzyme made of • word ending of an enzyme name • enzyme digest maltose to glucose • enzyme digests starch to maltose • the substance on which enzymes act • enzyme digest protein to amino acids • only substrate can fit into the active site • each enzyme has a groove (depression) on its surface • enzyme digest fats/lipid/oil to glycerol and fatty acids • ...
Chapter 2 Vocabulary- Bryden 2017-03-09
Across
- are the species formed from chemical reactions.
- Reaction- a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
- Reaction- is a chemical reaction that releases energy by light or heat.
- Changes- Chemical reactions often involve changes in energy due to the breaking and formation of bonds.
- a substance to be deposited in solid form from a solution.
- rapid chemical combination of a substance with oxygen, involving the production of heat and light.
Down
- a substance that takes part in and undergoes change during a reaction.
- is a chemical reaction in which an acid and a base react quantitatively with each other.
- Reaction- process describes a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat.
9 Clues: are the species formed from chemical reactions. • a substance to be deposited in solid form from a solution. • a substance that takes part in and undergoes change during a reaction. • Reaction- is a chemical reaction that releases energy by light or heat. • is a chemical reaction in which an acid and a base react quantitatively with each other. • ...
Organic Chemistry 2022-01-26
Across
- Aromatic hydrocarbons
- A substance that enters into and is altered in the course of a chemical reaction
- Chemical bond dissociation of a molecular bond by a process where each of the fragments retain one of the originally bonded electrons
- A molecular fragment that departs with a pair of electrons in heterolytic bond clevage
- A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangements of atoms
- used in mechanisms to show the various electron pairs moving around
Down
- The process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species
- Another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them
- A chemical reaction during which one functional group in a chemical compound is replaced by another functional group
- A reaction in which two or more molecules combine to form a larger molecule, with the simultaneous loss of a small molecule such as water or methanol
- A chemical species that forms bonds with electrophiles by donating an electron pair
- Any organic chemical compound in which the atoms are connected by single, double, or triple bonds to form nonaromatic structures
- A formula which shows the arrangement of atoms in the molecule of a compound
- An organic reaction where 2+ molecules combine to form a larger one
- A chemical species that forms bonds with nucleophiles by accepting an electron pair
15 Clues: Aromatic hydrocarbons • An organic reaction where 2+ molecules combine to form a larger one • used in mechanisms to show the various electron pairs moving around • A formula which shows the arrangement of atoms in the molecule of a compound • A substance that enters into and is altered in the course of a chemical reaction • ...
Krosword ni Kayl 2023-06-14
Across
- amount of space an object occupies
- also known as substitution reaction.
- a reaction thatinvolves the exchange of ions between two compounds and forms a new compound.
- According to ___ Theory, atoms or molecules of the reactants must collide for reaction to occur.
- This class involves the genetic materials
- a quantity or aggregate of matter usually of considerable size
- a substance that enters into and is altered in the course of a chemical reaction.
- Increase on the ___ area allows more collisions among reactant particles to occur.
- a double replacement/displacement reaction but with specific reactants and products.
- states that the volume of a fixed amount of gas maintained at constant pressure is directly proportional to its absolute temperature.
- The biomolecule that carries and transmits genetic information.
- Glycerol and fatty acid.
- The building block of carbohydrates.
- The rate of reactions is usually affected by the following ___ : temperature, surface area, amount of concentration of thr reactants, and presence of catalyst.
- Increasing the ___ of the reactant allows more molecules to react with another react.
Down
- states that the volume of a fixed quantity of gas maintained at constant temperature is inversely proportional to the pressure.
- a type of chemical reaction wherein reactants break down into simple substances.
- no of atoms contained in a substance
- The most common organic molecule because they make up most plant matter.
- is determined by how many times each particle hits the wall.
- The building block of proteins.
- Peptide bonds.
- One of the functions of proteins.
- Average kinetic energy of the gas particles
- The elements contained in carbohydrates and lipids.
- a substance that helps reactions to occur in a short period while keeping being unchanged at the end of the reaction.
- a type of chemical reaction wherein two or more substances combine to form a new substance.
- takes place as long as sufficient energy is present to form the bonds among atoms of molecules involved in the reaction process.
- Food storage in plants.
- the smallest particle of an element that can exist either alone or in combination
30 Clues: Peptide bonds. • Food storage in plants. • Glycerol and fatty acid. • The building block of proteins. • One of the functions of proteins. • amount of space an object occupies • also known as substitution reaction. • no of atoms contained in a substance • The building block of carbohydrates. • This class involves the genetic materials • ...
Enzymes 2021-10-12
Across
- is important in chemical reaction as it is needed to react with the substrate.
- is a model used to explain why enzymes only work on certain substrates.
- is a type of enzyme inhibition where the inhibitor reduces the activity of the enzyme and binds equally well to the enzyme
- is one of the main factors that affect the yield and initial rate of enzymatic hydrolysis of cellulose.
- a molecule acted upon by an enzyme
- is the minimum amount of energy required by chemical reactants to undergo a chemical reaction.
- is the alteration of a protein shape through some form of external stress
- Large molecules composed of one or more chains of amino acids
- is a molecule that disrupts the normal reaction pathway between an enzyme and a substrate
Down
- The temperature at which an enzyme shows its highest activity
- A proposed mechanism of interaction between an enzyme and a substrate.
- occurs when substrate and inhibitor both bind to the same site on the enzyme.
- Proteins that speeds up the rate of a chemical reaction in a living organism.
- The part of the enzyme where the substrate binds
- is the pH enzyme activity is most active, the rate of reaction is highest and the enzyme efficiency is at it best.
15 Clues: a molecule acted upon by an enzyme • The part of the enzyme where the substrate binds • The temperature at which an enzyme shows its highest activity • Large molecules composed of one or more chains of amino acids • A proposed mechanism of interaction between an enzyme and a substrate. • is a model used to explain why enzymes only work on certain substrates. • ...
Chapter 13 Chemical Reactions Crossword- Marissa Van Denk 2020-02-27
Across
- a chemcial reaction that gives away a material but doesn't receive a material back
- how quickly the concentration of reactants decreases and how quickly the concentration of products increases.
- reaction having a net absorption of energy
- the amount of energy required to pull two bonded atoms apart, which is the same amount of energy released when they are brought together.
- a chemcial reaction that occurs when compounds trade elements or gives away an element and gets a new one back
- a chemical reaction that releases large amounts of energy and creates oxides. It requires oxygen.
Down
- one or more new compounds are formed as a result of the rearrangement of atoms
- reaction having a net release of energy
- no atoms are gained or lost during any reaction. Instead, atoms simply change partners to form new materials
- the minimum energy required to overcome the inital breaking of bonds in reactants.
- a chemical reaction that builds a bigger compound from simpler materials
- a chemical reaction that breaks down a compound
12 Clues: reaction having a net release of energy • reaction having a net absorption of energy • a chemical reaction that breaks down a compound • a chemical reaction that builds a bigger compound from simpler materials • one or more new compounds are formed as a result of the rearrangement of atoms • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Vocab 2023-03-27
Across
- sugar
- needed for a chemical reaction to occur
- distributes glucose to the plant
- the process in which green plants make their own food
Down
- contains the chlorophyll
- the result of a chemical reaction
- pigment in green leaves
- a leaf that contains chlorophyll
- similar to the circulatory system
- an equation for a chemical reaction
10 Clues: sugar • pigment in green leaves • contains the chlorophyll • a leaf that contains chlorophyll • distributes glucose to the plant • the result of a chemical reaction • similar to the circulatory system • an equation for a chemical reaction • needed for a chemical reaction to occur • the process in which green plants make their own food
Chemical Reactions 2013-11-19
Across
- Capable of being disolved or liquified.
- A liquid with a pH lower than 7.
- The process of rearanging the molecules or ionic structure.
- A chemical reaction accompaied by the absorbtion of heat.
- An indicator that changes colour when going from acid to basic solutions.
- The aftermath of a reaction.
- The principle of matter not being created or destroyed in an isolated environment.
- Incapable of being disolved or liquified.
- The main ingredient in which other substances are added.
- A chemical reaction in which an acid and a base interact with the formation of salt.
- A pair of substances that have reacted or are going to.
Down
- A reaction that is accomanied by heat.
- The law of definate proportion.
- Is the scale measuring the acidity or alkalinity of a solution.
- A substance able to corrode or rot apon contact.
- A reaction that happens by cause of fire, spark, friction or static.
16 Clues: The aftermath of a reaction. • The law of definate proportion. • A liquid with a pH lower than 7. • A reaction that is accomanied by heat. • Capable of being disolved or liquified. • Incapable of being disolved or liquified. • A substance able to corrode or rot apon contact. • A pair of substances that have reacted or are going to. • ...
Photosynthesis + Cellular Respiration Project 2024-12-06
Across
- Oxygen and ________ are the reactants of Cellular Respiration.
- Water and ______ are the reactants of Photosynthesis.
- Photosynthesis occurs in the what?
- 34 ATP and water are made in this process.
- This reaction happens in the stroma.
- Cellular Respiration occurs in the what?
Down
- This converts chemical energy in food into chemical energy stored in ATP.
- This uses 2 pyruvate molecules to make 2 ATP.
- These are the results in a chemical equation.
- This reaction Happens in the grana.
- This converts light energy into chemical energy.
- These are the ingredients in a chemical equation.
- This is when glucose is broken down into 2 pyruvate.
- The results of photosynthesis are glucose and what?
- Water, carbon dioxide and ___ are products of Cellular Respiration.
15 Clues: Photosynthesis occurs in the what? • This reaction Happens in the grana. • This reaction happens in the stroma. • Cellular Respiration occurs in the what? • 34 ATP and water are made in this process. • This uses 2 pyruvate molecules to make 2 ATP. • These are the results in a chemical equation. • This converts light energy into chemical energy. • ...
Balancing Chemical Equations 2022-10-06
Across
- atoms that are rearranged form this
- when the atoms are the same amount before and after reaction
- Substances before a chemical reaction
- mass is never ____ or destroyed
- make up all things
Down
- what is drawn when illustrating an experiment
- substances after chemical reaction
- the atoms aren't that same amount before and after
- mass is never created or ___ it is only rearranged
- represents the chemical reaction in a formula
10 Clues: make up all things • mass is never ____ or destroyed • substances after chemical reaction • atoms that are rearranged form this • Substances before a chemical reaction • what is drawn when illustrating an experiment • represents the chemical reaction in a formula • the atoms aren't that same amount before and after • mass is never created or ___ it is only rearranged • ...
Introduction to Chemical Reactions and Equations 2023-12-11
Across
- the substances made when the reactants react
- C3H8 is _____________.
- Coefficients are altered to ___________ a chemical equation.
- a reaction's reactants are ALWAYS on the _____ side of an chemical equation
- the small umbers within a chemical formula H2O
- a shorthand way of representing the details of a chemical reaction
- these numbers are altered to balance a chemical equation
Down
- mass cannot be created or ___________.
- the starting components in a reaction
- the "arrow" means __________.
- Law of Conservation of _______
- The arrow in a chemical equation points toward the _____________.
- when balancing chemical equations, we start by making an element ____________.
13 Clues: C3H8 is _____________. • the "arrow" means __________. • Law of Conservation of _______ • the starting components in a reaction • mass cannot be created or ___________. • the substances made when the reactants react • the small umbers within a chemical formula H2O • these numbers are altered to balance a chemical equation • ...
Chemical Reactions 2013-11-19
Across
- The main ingredient in which other substances are added.
- The law of definate proportion.
- Capable of being disolved or liquified.
- A reaction that is accomanied by heat.
- Is the scale measuring the acidity or alkalinity of a solution.
- A chemical reaction accompaied by the absorbtion of heat.
- Incapable of being disolved or liquified.
Down
- An indicator that changes colour when going from acid to basic solutions.
- A reaction that happens by cause of fire, spark, friction or static.
- A substance able to corrode or rot apon contact.
- The principle of matter not being created or destroyed in an isolated environment.
- The process of rearanging the molecules or ionic structure.
- A chemical reaction in which an acid and a base interact with the formation of salt.
- A liquid with a pH lower than 7.
- A pair of substances that have reacted or are going to.
- The aftermath of a reaction.
16 Clues: The aftermath of a reaction. • The law of definate proportion. • A liquid with a pH lower than 7. • A reaction that is accomanied by heat. • Capable of being disolved or liquified. • Incapable of being disolved or liquified. • A substance able to corrode or rot apon contact. • A pair of substances that have reacted or are going to. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
7E and 7F Summary 2012-12-18
Across
- Common acid which goes with fish and chips
- Gas which burns with a squeaky pop
- What physical changes often are
- Relights a glowing splint
- Has a pH of 7
- Has a pH of less than 7
- Coloured dye that changes colour when mixed with acids/alkalis
- Given off in many reactions
- What word is used for if an acid is not dilute?
- The indicator that turns blue in alkalis and red in acids
- Produced when burning along with carbon dioxide
Down
- Chemical you end with
- Substance used to test for carbon dioxide
- The scale for acids
- Type of reaction where a new substance is always formed
- Completes the fire triangle with heat and oxygen
- Combustion
- The reaction when an acid is mixed with an alkali
- What hazard warning is given by a large black cross?
- Has a pH of more than 7
- What hazard warning is given by a substance spilling onto a hand or block?
- A fast reaction which gives out a lot of heat and gas
- Chemical you start with
23 Clues: Combustion • Has a pH of 7 • The scale for acids • Chemical you end with • Has a pH of less than 7 • Has a pH of more than 7 • Chemical you start with • Relights a glowing splint • Given off in many reactions • What physical changes often are • Gas which burns with a squeaky pop • Substance used to test for carbon dioxide • Common acid which goes with fish and chips • ...
Chem. Vocab and Concepts Crossword 2024-06-07
Across
- Turns litmus paper blue.
- When a solution contains the maximum amount of solute.
- The measure of the ability of an atom to attract electrons of other atoms.
- Compares the number of moles of each reactant.
- Unit for measuring heat.
- Method for balancing chemical equations that uses a grid.
- Property that refers to a substance's ability to combine or change into another substance.
- Bond that occurs between nonmetals.
- Reaction between an acid and a base.
- Number of moles in one liter of solution.
Down
- The groups of electrons in a lewis structure that are not bonded.
- An element that is most commonly found bonded with another atom of itself.
- When a reaction absorbs heat.
- pH + pOH
- The complete valence shell of an atom.
- The ________ yield is the amount of a chemical that a reaction is supposed to produce.
- Point where gasses, liquids, and solids exist at the same time.
- How close multiple trials are to each other.
- Device that measures atmospheric pressure.
- How close a value is to the accepted value.
20 Clues: pH + pOH • Turns litmus paper blue. • Unit for measuring heat. • When a reaction absorbs heat. • Bond that occurs between nonmetals. • Reaction between an acid and a base. • The complete valence shell of an atom. • Number of moles in one liter of solution. • Device that measures atmospheric pressure. • How close a value is to the accepted value. • ...
Unit 1 Review 2024-09-12
Across
- word that describes a substance that breaks easily
- change where no new substance is created
- change where a new substance is created
- law of _____________ of mass
- elements that are semiconductors
- elements that are poor conductors, brittle, low luster
- the law of conservation of mass says that both sides of a reaction should be the ____
- right side of a chemical reaction (RAP)
- mixture where the substances are mixed evenly throughout
- word that describes a substance that is not shiny
- mixture where the substances not mixed evenly (separated)
Down
- word that describes a substance that can bend without breaking
- name of element that is a metalloid that starts with the letter s
- word that describes a substance that can pass electricity
- left side of a chemical reaction (RAP)
- word that describes how shiny an object is
- word used for a poor conductor
- name of element that has the word 'bro' in it
- all matter is made out of this
- metalloids are on the ______________ in the periodic table
- elements that are great conductors, malleable, high luster
21 Clues: law of _____________ of mass • word used for a poor conductor • all matter is made out of this • elements that are semiconductors • left side of a chemical reaction (RAP) • change where a new substance is created • right side of a chemical reaction (RAP) • change where no new substance is created • word that describes how shiny an object is • ...
Jerry Cannon Jr. Chapter 13 Crossword 2016-10-12
Across
- a substance that is the result of the chemical change
- changes the substance
- is a acid
- when reaction and it's reverse act at the same rate
- a substance that undergoes a chemical change
- increasing temperature favors the reaction that absorbs energy
Down
- is a chemical that donates a hydrogen ion H+
- energy transfers from reactants to surrounding usually heat
- if changed shifts to oppose change until it is reached.
- must be added to break bonds
- energy is transferred to reactants from surroundings
- tell you how many atoms of a particular element are in a compound
- increasing pressure favors the reaction that produces less gas
- is a acceptor
14 Clues: is a acid • is a acceptor • changes the substance • must be added to break bonds • is a chemical that donates a hydrogen ion H+ • a substance that undergoes a chemical change • when reaction and it's reverse act at the same rate • energy is transferred to reactants from surroundings • a substance that is the result of the chemical change • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
Esvin 2.1 vocab 2021-10-27
Across
- chemical reaction that gives off heat energy.
- the substances present before a chemical reaction occurs in a chemical reaction the arrows.
- a chemical reaction that absorbs heat energy.
- when something changes into new substance.
Down
- a chemical change an process that changes substances in to new substances.
- the substances that are formed during a chemical reaction in a chemical reaction the arrows.
- a change in matter that doesn't effect its atom
- material that has mass and takes up some amount of space.
8 Clues: when something changes into new substance. • chemical reaction that gives off heat energy. • a chemical reaction that absorbs heat energy. • a change in matter that doesn't effect its atom • material that has mass and takes up some amount of space. • a chemical change an process that changes substances in to new substances. • ...
PS.Chm.5.1 – Vocabulary Crossword 2026-01-07
Across
- A meeting between particles in a chemical reaction
- A substance that speeds up a reaction without being used up
- Explanation of how chemical reactions occur
- Substances present at the start of the reaction
Down
- Energy needed to start a reaction
- The minimum energy needed for a reaction to occur
- Collisions that result in a chemical reaction
- The exposed part of a solid that affects the reaction rate
- Measure of average kinetic energy of particles
9 Clues: Energy needed to start a reaction • Explanation of how chemical reactions occur • Collisions that result in a chemical reaction • Measure of average kinetic energy of particles • Substances present at the start of the reaction • The minimum energy needed for a reaction to occur • A meeting between particles in a chemical reaction • ...
Oxidation Reduction 2021-05-27
Across
- type of electromechanical cell
- has a negative charge
- gain of electrons by a substance
- type of chemical reaction in which the oxidation states of atoms are changed
Down
- electromechanical cell that uses a chemical reaction to produce electrical energy
- occurs when an atom, molecule,or ion loses one or more electrons in a chemical reaction
- Occurs when an atom gains an electron it will have more electrons than protons
- oxidation or reduction reaction component of a redox reaction
- electrode where oxidation occurs
- electrode where reduction occurs
10 Clues: has a negative charge • type of electromechanical cell • electrode where oxidation occurs • gain of electrons by a substance • electrode where reduction occurs • oxidation or reduction reaction component of a redox reaction • type of chemical reaction in which the oxidation states of atoms are changed • ...
Chapter 13 Kara Floyd 2018-03-08
Across
- What bond energy is also known as.
- The amount of energy required to pull two bonded atoms apart.
- What chemical reaction is this (AB—>A+B)?
- A substance that lowers activation energy of a chemical reaction.
- A net absorption of energy.
Down
- A net released of energy.
- No atoms are gained or lost during any reaction.
- What chemical reaction is this (A+B—>AB)?
- How quickly the concentration of reactants decreases and increases.
- When a reaction and it’s reverse act at the same rate.
10 Clues: A net released of energy. • A net absorption of energy. • What bond energy is also known as. • What chemical reaction is this (A+B—>AB)? • What chemical reaction is this (AB—>A+B)? • No atoms are gained or lost during any reaction. • When a reaction and it’s reverse act at the same rate. • The amount of energy required to pull two bonded atoms apart. • ...
Chapter 13 Crossword; Rylee Goedde 2019-10-07
Across
- Most reactions go faster at ____ temperatures
- in a chemical reaction the equation must be _____
- In the law of _____ no atoms are gained or lost during any reaction
- Bond energy is also known as _____ energy
- In an ____thermic reaction there is a net absorption of energy
Down
- New color represents _____ change
- In an ____thermic reaction there is a net release of energy
- In chemical equations you read from ___ to ___
- _____ energy is the amount of energy required to pull two bonded atoms apart
- ____ rates are affected by temperature
10 Clues: New color represents _____ change • ____ rates are affected by temperature • Bond energy is also known as _____ energy • Most reactions go faster at ____ temperatures • In chemical equations you read from ___ to ___ • in a chemical reaction the equation must be _____ • In an ____thermic reaction there is a net release of energy • ...
Photosynthesis and cellular respiration 2022-11-04
Across
- energy for cells to use
- requires other organisms for energy
- where photosynthesis occurs
- where CR takes place
- Able to make own food and energy
- captures sunlight
- input of a chemical reaction
- the gas that is in photosynthesis
Down
- production of CO2
- light energy from the sun
- production of Glucose
- movement of atoms
- gas produced by photosynthesis
- output of a chemical reaction
- Regulate gas exchange in leaf
- food for plants and animals
16 Clues: production of CO2 • movement of atoms • captures sunlight • where CR takes place • production of Glucose • energy for cells to use • light energy from the sun • where photosynthesis occurs • food for plants and animals • input of a chemical reaction • output of a chemical reaction • Regulate gas exchange in leaf • gas produced by photosynthesis • Able to make own food and energy • ...
Chemical Reactions in Biology Part 1 2015-04-15
Across
- _______ energy is how much energy it takes to start a chemical reaction
- a type of biological catalyst make of amino acids
- one of the starting ingredients in a chemical reaction
Down
- the chemical that gets changed by an enzyme
- a chemical ______ happens when two atoms connect together or disconnect
- something that makes a reaction faster
- what you get after a chemical reaction
- site the place on an enzyme where a chemical reaction gets catalyzed
8 Clues: something that makes a reaction faster • what you get after a chemical reaction • the chemical that gets changed by an enzyme • a type of biological catalyst make of amino acids • one of the starting ingredients in a chemical reaction • site the place on an enzyme where a chemical reaction gets catalyzed • ...
Chemistry Crossword Puzzle 2023-12-14
Across
- the smallest unit of an element
- formula a combination of chemical symbols that represents the elements in a compound
- Atoms of the same element with a different number of neutrons
- negatively charged subatomic particle orbiting the nucleus of an atom
- positively charged subatomic particle found in the nucleus of an atom
- mass per unit volume of a substance
- subatomic particle with no charge, found in the nucleus of an atom
- the process of a substance changing directly from a solid to a gas without passing through the liquid phase
- a substance that speeds up a chemical reaction without being consumed in the process
- an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
Down
- the speed at which a chemical reaction occurs
- an electron in the outermost shell of an atom, involved in chemical bonding
- A substance made up of two or more different types of atoms chemically bonded together
- a measure of the acidity or alkaline concentration.
- the amount of solute dissolved in a solvent
- A substance made up of only one type of atom
- point the temperature at which a liquid turns into a gas
- a group of atoms bonded together
18 Clues: the smallest unit of an element • a group of atoms bonded together • mass per unit volume of a substance • the amount of solute dissolved in a solvent • A substance made up of only one type of atom • the speed at which a chemical reaction occurs • a measure of the acidity or alkaline concentration. • point the temperature at which a liquid turns into a gas • ...
Science 2023-12-11
Across
- Method or means of changing one or more chemicals
- Physical and chemical characteristics of matter used to describe or identify a substance
- A substance produced during a chemical reaction.
- Materials Materials made from one r more natural substances that undergo a chemical process.
- A substance that takes part in and undergoes change during a chemical reaction.
Down
- The process by which one or more substances change to produce one or more different substances.
- A new substance with a unique chemical and physical properties formed when two or more elements are chemically bonded during a chemical reaction.
- The simplest unit of a chemical compound that can exist, formed when two or more atoms join together chemically
- An Insoluble solid formed from a chemical reaction.
- The smallest Particle of an element
10 Clues: The smallest Particle of an element • A substance produced during a chemical reaction. • Method or means of changing one or more chemicals • An Insoluble solid formed from a chemical reaction. • A substance that takes part in and undergoes change during a chemical reaction. • Physical and chemical characteristics of matter used to describe or identify a substance • ...
Chemical equation and reaction 2024-09-16
Across
- hydrogen and oxygen combine to form
- when 1 reactant decompose to form 2 products
- reaction in which heat and energy are absorbed
- process of gaining oxygen
- process of losing oxygen
- process fat and oil get oxidized and their smell changes
Down
- reaction in which heat is produced
- when a substance like moisture attacks metal, then it is said to be _____
- when 2 reactants combine to form a single product
- insoluble substance formed during a reaction
- heat is represented in which shape in a reaction
- respiration is a _______ reaction
- slaked lime is used for _____
- the word ______ is written if a reactant or product is present as a solution in water
14 Clues: process of losing oxygen • process of gaining oxygen • slaked lime is used for _____ • respiration is a _______ reaction • reaction in which heat is produced • hydrogen and oxygen combine to form • when 1 reactant decompose to form 2 products • insoluble substance formed during a reaction • reaction in which heat and energy are absorbed • ...
General Chemistry 2021-11-16
Across
- liquid to gas
- The central core of an atom contains protons and neutrons
- In an ionic bond, electrons are _____(ed)
- In a covalent bond, electrons are ____(ed)
- to produce
- A substance that is dissolved in a solution
- speeds up the rate of reaction and remains unchanged when the reaction finishes
- In polar covalent bonds, electrons are ____ distributed.
- cannot be divided
- The subatomic particle of an atom that has a negative charge is called a(an)_____.
- solid to gas
- A number in front of chemical formula in an equation
Down
- A chemical _____ occurs when 2 or more substances interact with each other causing the molecules to form.
- An atom's ability to pull electrons towards it in a chemical bond
- ____ rule means 8 electrons
- The amount of matter in an object.
- gas to liquid
- The ____ table is a tabular arrangement of the elements.
- A(an) ____ reactant is totally consumed in an equation
- Another name of the outermost shell
- An atom with the same number of protons but a different number of neutrons
- gas to solid
22 Clues: to produce • gas to solid • solid to gas • liquid to gas • gas to liquid • cannot be divided • ____ rule means 8 electrons • The amount of matter in an object. • Another name of the outermost shell • In an ionic bond, electrons are _____(ed) • In a covalent bond, electrons are ____(ed) • A substance that is dissolved in a solution • ...
Joseph Yanna Unit 2 2025-03-27
Across
- smallest structure in a cell
- molecule that repels water
- membrane ability to pass and exit cell
- substance that is formed as a result of a chemical reaction or process
- a group of cells that work together to perform a function
- moving from an area of higher concentration to an area of lower cocentratio
- speeds up a chemical reaction
- the movement of water
- movement from a lower concentration to a area of higher concentration
- related parts that function together as a whole
- atoms that are bonded together
- smallest unit capable of carrying life functions
Down
- specific region on an enzyme
- a group of organs that work to perform a function
- minimum amount of energy needed to start a chemical reaction or to get molecules to react
- movement of molecules across a cell membrane without requiring energy
- surface where an organism lives and grows
- molecules that do not mix with water
- a protein that has lost its shape
- smallest unit of matter
- form the cell membrane
- a group of tissues that perform a function
22 Clues: the movement of water • form the cell membrane • smallest unit of matter • molecule that repels water • specific region on an enzyme • smallest structure in a cell • speeds up a chemical reaction • atoms that are bonded together • a protein that has lost its shape • molecules that do not mix with water • membrane ability to pass and exit cell • ...
Mixtures/Solutions and Chemical Reaction 2022-01-10
Across
- Change A change that alters the form or appearance of a material, but doesn't make the material into another substance
- A substance that is formed as a result of a chemical reaction
- The part of a solution that is dissolved by a solvent
- Reaction A reaction that releases energy; usually in the form of heat
- Change A change in which one or more substances combine or break apart to form new substances
- The part of a solution that is usually present in the largest amount and can dissolve a solute
- When a substance fully disappears into another substance to form a solution
- Two or more substances that are together in the same place, but their atoms aren't chemically bonded
Down
- A measure of how much solute can dissolve in a given solvent at a given temperature
- Reaction A reaction that absorbs energy
- How slowly or quickly something happens
- A mixture in which particles can be seen and easily separated by settling or filtration
- A mixture that contains small, undissolved particles that don't settle out
- A substance that enters into a chemical reaction
14 Clues: Reaction A reaction that absorbs energy • How slowly or quickly something happens • A substance that enters into a chemical reaction • The part of a solution that is dissolved by a solvent • A substance that is formed as a result of a chemical reaction • Reaction A reaction that releases energy; usually in the form of heat • ...
Chemical Energy 2021-01-25
Across
- Ammonium nitrate & calcium chloride are called this
- A reaction plants use to make sugar and O2
- A violent reaction
- The electrical attractive force between atoms
- Specific part of interest in the study
- A chemical change
- This is the energy required to start reactions
- Energy that is absorbed or released in a reaction
Down
- Reaction where heat is absorbed
- Include the rest of the universe
- Substances able to burn, source of energy
- Reaction where heat energy is released
- The new substances in a reaction
- The burning of fuels with oxygen
- Substances that change in a reaction
15 Clues: A chemical change • A violent reaction • Reaction where heat is absorbed • Include the rest of the universe • The new substances in a reaction • The burning of fuels with oxygen • Substances that change in a reaction • Reaction where heat energy is released • Specific part of interest in the study • Substances able to burn, source of energy • ...
Enzymes 2023-02-15
Across
- right side of chemical equation
- pH = 7
- two words, the amount of energy needed for a chemical rxn to occur
- left side of chemical equation
- what happens to an enzyme as a result of excess heat or change in pH
- specific reactant
- in our analogy, an enzyme is to a ________
Down
- starts/forces a reaction
- enzymes are not ________ during a reaction
- enzymes are highly ________
- pH = 14
- suffix of enzymes
- pH = 1
- in our analogy, an substrate is to a ________
14 Clues: pH = 7 • pH = 1 • pH = 14 • suffix of enzymes • specific reactant • starts/forces a reaction • enzymes are highly ________ • left side of chemical equation • right side of chemical equation • enzymes are not ________ during a reaction • in our analogy, an enzyme is to a ________ • in our analogy, an substrate is to a ________ • ...
Photosynthesis 2023-03-22
Across
- gas produced after photosynthesis
- energy needed for photosynthesis to take place
- green pigment that allows plants to absorb sunlight
- place on plants where photosynthesis takes place
- substances formed in a chemical reaction
Down
- photosynthesis is a ________ reaction
- chemical reaction that takes place in the chloroplasts of a plant cell
- cell organelle where photosynthesis takes place
- sugar that is produced in photosynthesis
- what is needed for a reaction to take place
10 Clues: gas produced after photosynthesis • photosynthesis is a ________ reaction • sugar that is produced in photosynthesis • substances formed in a chemical reaction • what is needed for a reaction to take place • energy needed for photosynthesis to take place • cell organelle where photosynthesis takes place • place on plants where photosynthesis takes place • ...
