chemical reaction Crossword Puzzles

atoms and chemical reaction 2022-12-09

atoms and chemical reaction crossword puzzle

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what is a chemical reaction
a substance made up of only one type of atom
a chemical reaction which a compound breaks down into two or more
the rate at which reactants change into products over time
the number of protons in a nucleus
what has a neutral charge
a chemical reaction in which two or more substances react to form a single substances
what is a physical change
new substance formed as a result of a chemical reaction
what is the smallest unit of an element

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three substances particles in the nucleus
a chemical reaction in which electrons are transferred from one reactant to another
what is a substance to be deposited in solid form from a solution
a molecule made of repeating units formed into long chains
where is the protons located
what is located at the center of an atom
what is located in the electron cloud
what is located in nucleus and has a positive charge
a substance that undergoes change in a chemical reaction
a pure substance that is made up of two or more different types of atoms chemically joined

20 Clues: what has a neutral charge • what is a physical change • what is a chemical reaction • where is the protons located • the number of protons in a nucleus • what is located in the electron cloud • what is the smallest unit of an element • what is located at the center of an atom • three substances particles in the nucleus • a substance made up of only one type of atom • ...

atoms and chemical reaction 2022-12-09

Across

what is a chemical reaction
a substance made up of only one type of atom
a chemical reaction which a compound breaks down into two or more
the rate at which reactants change into products over time
the number of protons in a nucleus
what has a neutral charge
a chemical reaction in which two or more substances react to form a single substances
what is a physical change
new substance formed as a result of a chemical reaction
what is the smallest unit of an element

Down

three substances particles in the nucleus
a chemical reaction in which electrons are transferred from one reactant to another
what is a substance to be deposited in solid form from a solution
a molecule made of repeating units formed into long chains
where is the protons located
what is located at the center of an atom
what is located in the electron cloud
what is located in nucleus and has a positive charge
a substance that undergoes change in a chemical reaction
a pure substance that is made up of two or more different types of atoms chemically joined

Kove Hernandez crossword 2017-02-27

Kove Hernandez crossword crossword puzzle

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replacement- reacts with a compound and takes the place of another element in that compound
a substance that is formed as the result of a chemical reaction.
A half-reaction in which a chemical species decreases its oxidation number, usually by gaining electrons
type of chemical reaction in which two or more simple substances combine to form a more complex product.
of two atoms.
rapid chemical combination of a substance with oxygen, involving the production of heat and light
chemical decomposition produced by passing an electric current through a liquid or solution containing ions
process or result of oxidizing or being oxidized.
of or containing water, typically as a solvent or medium

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equation-the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.
cause (a substance) to be deposited in solid form from a solution
compound- A binary compound is a chemical compound that contains exactly two different elements.
substance that takes part in and undergoes change during a reaction.
the state or process of rotting, decay.
replacement- a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
ion- is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit
a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
produce or provide
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

19 Clues: of two atoms. • produce or provide • the state or process of rotting, decay. • process or result of oxidizing or being oxidized. • of or containing water, typically as a solvent or medium • a substance that is formed as the result of a chemical reaction. • cause (a substance) to be deposited in solid form from a solution • ...

Chemical Equations 2024-03-12

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The total energy of an isolated system cannot change.
At the start of a chemical reaction.
Postive or negative for an atom.
Consists of a single type of atom distinguished by its atomic number.
A number that is below the "baseline" mainly in a formula.
A process that makes one set of chemical substances to another.
A solution where the solvent is water.
A way to show a chemical reaction in words.
Contains 2 different chemical elements.

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To make both sides of an equation equal.
a number in front of a formula
A chemical property that describes the tendency of an atom to attract electrons to itself when forming a chemical bond.
A method to lead a non-spontaneous chemical reaction.
Symbolic showing of a chemical reaction
Ionic compounds that result from the neutralization reaction of an acid and a base.
Shows information about the atoms in a certain compound.

16 Clues: a number in front of a formula • Postive or negative for an atom. • At the start of a chemical reaction. • A solution where the solvent is water. • Symbolic showing of a chemical reaction • Contains 2 different chemical elements. • To make both sides of an equation equal. • A way to show a chemical reaction in words. • The total energy of an isolated system cannot change. • ...

Chapter 7 2023-01-03

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a representation of a chemical reaction in which the reactants and products are expressed as formulas
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
a chemical reaction that absorbs energy from its surroundings
a chemical reaction that releases energy to its surroundings
new substances formed as a result of a chemical reaction
a chemical reaction in which two or more substances react to form a single substance

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the mass of one mole of a substance
a chemical reaction in which two compounds exchange positive ions and form new compounds
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction in which a compound breaks down into two or more simpler substances
the energy stored in chemical bonds
substances that undergo change in a chemical reaction

13 Clues: the mass of one mole of a substance • the energy stored in chemical bonds • substances that undergo change in a chemical reaction • new substances formed as a result of a chemical reaction • a chemical reaction that releases energy to its surroundings • a chemical reaction that absorbs energy from its surroundings • ...

Chemical Reactions Vocabulary 2024-02-14

Chemical Reactions Vocabulary crossword puzzle

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how easily an element reacts.
energy is released
ending materials of a chemical reaction
a list that shows more active elements on top
arrow in a chemical reaction
starting materials of a chemical reaction
(s)
symbolic representation of a chemical reaction

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number of molecules
(aq)
a charged particle that has either gained or lost an electron
energy is absorbed
ability of an element to attract electrons in a molecule
(g)
a solid from two aqueous solutions
(l)

16 Clues: (g) • (s) • (l) • (aq) • energy is absorbed • energy is released • number of molecules • arrow in a chemical reaction • how easily an element reacts. • a solid from two aqueous solutions • ending materials of a chemical reaction • starting materials of a chemical reaction • a list that shows more active elements on top • symbolic representation of a chemical reaction • ...

Chapter 8 Chemistry Vocab 2023-03-08

Chapter 8 Chemistry Vocab crossword puzzle

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occurs when a compound is broken down into simpler substances
a substance that dissolves in water, dissociating completely into ions
a chemical showing the complete (undissociated) forms of all reactants and products
a reaction that forms water when an acid is mixed with a base
the new substance formed by a chemical reaction; it is shown to the right of the reaction arrow
a substance that produces hydrogen ions in aqueous solution; a proton donor
a base that completely dissociates to produce ions in solution
a chemical equation for a reaction in solution showing only those components that are directly involved in the reaction; strong electrolytes are represented as ions
the solid that forms in a precipitation reaction
the percent by mass of a component of a mixture or of a given element in a compound
a solid that readily dissolves in water
an ionic compound
a process in which one or more substances are changed into one or more new substances by the reorganization of component atoms
a chemical equation that has the same number of each type of atom on the product side and the reactant side
a formula that gives the exact numbers and types of atoms in a molecule of a substance
an oxidation–reduction reaction that involves
a small unit of mass equal to

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a chemical reaction in which a compound is formed from simpler materials
a reaction in which ions in two compounds exchange places, forming two new compounds
a chemical equation for a reaction in solution representing all strong electrolytes
the weighted average of the masses of all the isotopes of an element
a chemical reaction involving the transfer of electrons
a reaction in which a solid forms and separates from the solution as a solid
the number of atoms in exactly of pure 12C, equal to
ions present in solution that do not participate directly in a reaction
the starting substance of a chemical reaction shown to the left of the reaction arrow
a formula that gives the simplest whole number ratio of the atoms present in a compound
a substance that produces hydroxide ions in solution; a proton accepto
the number equal to the number of carbon atoms in exactly of pure 12C; Avogadro’s number; one mole represents
(slightly soluble solid) a solid that dissolves to such a small degree that it is not detectable to the naked eye
an acid that completely dissociates (ionizes) to produce ions in solution
a representation of chemical reaction using the formulas of the starting substances that react and the new substances that are formed
the mass in grams of one mole of a compound

33 Clues: an ionic compound • a small unit of mass equal to • a solid that readily dissolves in water • the mass in grams of one mole of a compound • an oxidation–reduction reaction that involves • the solid that forms in a precipitation reaction • the number of atoms in exactly of pure 12C, equal to • a chemical reaction involving the transfer of electrons • ...

Chapter 10 section 3 2023-03-16

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when corrosion of metal causes a color change
A solid that forms from a chemical reaction.
chemical change sign that can be easily seen with the eye. An example would be bleaching your shirt
the chemical name of table salt
also known as rust
what hydrogen and water make
the chemicals on the left side of a chemical equation
compounds have different chemical ____________
a sign of chemical change in the form of heat or light
the total mass of the reactants equals the total mass of the products in a reaction
a chemical reaction that releases energy

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also known as chemical change
bubbling or foaming can be a sign of this chemical change
the chemicals on the right side of a chemical equation
a chemical reaction that requires the energy of the sun to help create sugars
indicates the number of atoms in a compound such as mon or di.
Compounds are made from more than one type of ________
keeps track of which substances are used and in what ratio

18 Clues: also known as rust • what hydrogen and water make • also known as chemical change • the chemical name of table salt • a chemical reaction that releases energy • A solid that forms from a chemical reaction. • when corrosion of metal causes a color change • compounds have different chemical ____________ • the chemicals on the left side of a chemical equation • ...

Chapter 2 2022-10-04

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A reaction that switches places forming a new compound.
The substances produced by a chemical reaction.
A reaction that releases thermal energy.
substance that increase reaction rate by lowering the activation energy.
A reaction that absorbs energy.
A chemical reaction that produces carbon dioxide and water.
A chemical reaction when one compound breaks down into two substances.
A substance that slows or stops a reaction.

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The small amount of energy needed to start a reaction.
The starting substances in a chemical reaction.
A process in which atoms rearrange to form a new substance.
A catalyst that speeds up a reaction.
A chemical reaction that has two substances combine to make a compound.

13 Clues: A reaction that absorbs energy. • A catalyst that speeds up a reaction. • A reaction that releases thermal energy. • A substance that slows or stops a reaction. • The starting substances in a chemical reaction. • The substances produced by a chemical reaction. • The small amount of energy needed to start a reaction. • ...

Mole-Mass Relationship Crossword 2021-11-17

Mole-Mass Relationship Crossword crossword puzzle

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formula, tells the number of each type of atom.
yield, the percent of the theoretical yield actually obtained from a chemical reaction.
if unknown pure compound can be _______, the masses of elements present can be determined.
a chemical equation tell how many molecules, and thus how many moles, of each reactants are needed and how many of each products are formed.
equation, an equation in which ions are explicitly shown.
reagent, is the reactant that runs out first.
yield, the amount of product actually formed in a reaction.
formula, represent real three-dimensional objects.
equation, expression in which symbols are used to represent a chemical reaction.
number, contains 6.022 x 1023 formula units.
weight, the sum of the atomic weights for all the atoms in the molecule or formula unit.

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to obtain the correct ratio of reactant molecules, the reactants must be ______
formula, the simplest whole-number ratio of moles of each element in the compound.
yield, the amount of product formed assuming complete reaction of the limiting reagent.
weight, the average mass of an element’s atoms.
substances that are present at the end of a chemical reaction.
formula, identifies the location of chemical bonds between the atoms of a molecule.
measure of the quantitative relationship between the products and reactants of a given chemical reaction.
chemical equations, indicate what is happening at the molecular level during a reaction.
a substance that enters into and is altered in the course of a chemical reaction.
to mass, conversion that is carried out using molas mass as a conversion factor.
ratios, coefficients can be put in the form of ______, which act as conversion factors when setting up factor-label calculations.
is the amount of a substance whose mass in grams is numerically equal to its molecular or formula weight.
mass, this serves as a conversion factor between numbers of moles and mass.
weight, is the average mass of a substance’s molecules.

25 Clues: reagent, is the reactant that runs out first. • number, contains 6.022 x 1023 formula units. • formula, tells the number of each type of atom. • weight, the average mass of an element’s atoms. • formula, represent real three-dimensional objects. • weight, is the average mass of a substance’s molecules. • equation, an equation in which ions are explicitly shown. • ...

Unit 2 Chemistry Review 2023-11-09

Unit 2 Chemistry Review crossword puzzle

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agent, chemical species that reduces another substance by giving away electrons
point, point at which the reaction has occurred as per the stoichiometric ratio of the balanced equation
agent, chemical species that oxidises another substance by accepting electrons
volume of the solution delivered from the burette to reach the end point of a titration
curved upper surface of liquid
chemical reaction in which a chemical species loses electrons
standard, substance used to make a primary standard solution
number, number assigned to an atom that can be used to determine the movement of electrons in redox reactions
set of conditions used as a standard for experiments (298 K and 100 kPa)
solution, solution with a relatively low amount of solute in comparison to the volume of solution
point, point at which a colour change occurs during titration
series of metals, organised scale of metals and their cations, ranked according to their strength as reducing and oxidising agents

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gases, molecules that absorb infrared radiation from the s
process of decreasing concentration of a solution by adding more solvent
chemical reaction in which a chemical species gains electrons
one in one million parts of a solution
solution, solution with a relatively high amount of solute in comparison to the volume of solution
quantitative technique used to find the concentration and/or amount of substance in a solution
displacement reaction, redox reaction in which a more reactive metal displaces a less reactive metal’s cation from solution
titres, three or more titres that fall within approximately 0.1 mL of each other
capacity, relationship between the heat absorbed by a substance and its temperature change
reaction, chemical reaction involving the transfer of electrons between chemical species

22 Clues: curved upper surface of liquid • one in one million parts of a solution • gases, molecules that absorb infrared radiation from the s • standard, substance used to make a primary standard solution • chemical reaction in which a chemical species gains electrons • chemical reaction in which a chemical species loses electrons • ...

Enzymes 2022-11-07

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energy the energy needed to give the starting "push" for a chemical reaction
site the part of the enzyme where the substrate binds
the elements or compounds that enter into a chemical reaction
another term used to describe the graph of an endergonic reaction
enzymes are considered which type of macromolecule?
the optimum is 37 degrees C
functions best at a pH of 2 because it's found in the stomach
molecules that speed up the rate of a reaction by lowering the activation energy
the enzyme that is responsible for breaking down lactose

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the "key" that fits specifically to one enzyme
the enzyme that breaks down lipids
the name of the site on an enzyme other than the active site
an inhibitor that binds somewhere else on the enzyme and changes the shape of the active site
another term used to describe the graph of an exergonic reaction
a chemical reaction that requires an input of energy
if the temperature increases too much and the protein/enzyme falls apart
the elements or compounds that are produced from a chemical reaction
a chemical reaction that releases energy in the form of heat
an inhibitor that sits in the active site and doesn't allow the substrate to bind
an enzyme found in the mouth that breaks down carbohydrates

20 Clues: the optimum is 37 degrees C • the enzyme that breaks down lipids • the "key" that fits specifically to one enzyme • enzymes are considered which type of macromolecule? • a chemical reaction that requires an input of energy • site the part of the enzyme where the substrate binds • the enzyme that is responsible for breaking down lactose • ...

Science wk 10 2024-06-25

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The process of rusting of iron due to its reaction with oxygen and water. (10 letters)
A reaction that occurs spontaneously and releases energy. (11 letters)
The substance that speeds up a reaction by providing an alternative reaction pathway. (9 letters)
The balanced chemical equation representing a reaction. (10 letters)
A reaction that absorbs energy from the surroundings. (11 letters)
A substance that speeds up a chemical reaction without being consumed itself. (9 letters)
The minimum energy required for a chemical reaction to occur. (10 letters)
The number of atoms of each element in a molecule. (9 letters)
REPLACEMENT type of reaction where two compounds exchange ions to form new compounds. (12 letters)
A reaction in which a single compound breaks down into two or more simpler substances. (13 letters)
The process of breaking down organic molecules to release energy. (11 letters)
The process of combining hydrogen and oxygen to produce water. (8 letters)
The process of combining two or more substances to form a new compound. (12 letters)

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A reaction in which electrons are transferred from one substance to another. (13 letters)
A reaction that involves the exchange of electrons between reactants. (13 letters)
A reaction in which a metal displaces another metal from its salt solution. (14 letters)
A reaction that releases energy, often in the form of heat or light. (14 letters)
A reaction between an acid and a base, resulting in the formation of water and a salt. (13 letters)
A reaction that involves the transfer of protons (H+ ions). (12 letters)
What is the process by which substances are broken down or built up in the body? (10 letters)
The substance that is dissolved in a solution. (8 letters)
The process of converting light energy into chemical energy in plants. (9 letters)
The process of breaking down organic molecules to release energy. (11 letters)
A reaction in which the reactants and products are in the same physical state (solid, liquid, or gas). (13 letters)
The study of the rates of chemical reactions. (11 letters)

25 Clues: The substance that is dissolved in a solution. (8 letters) • The study of the rates of chemical reactions. (11 letters) • The number of atoms of each element in a molecule. (9 letters) • A reaction that absorbs energy from the surroundings. (11 letters) • The balanced chemical equation representing a reaction. (10 letters) • ...

Chapter 7 2019-05-26

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A substance that affects the rate of a chemical reaction without being used up in the reaction (215)
The mass of one mole of a substance (196)
The energy stored in chemical bonds (206)
A system releases energy to its surroundings
Numbers that appear before a formula in a chemical equation (194)
A chemical reaction in which the reactants and products are expressed as formulas (193)
A system absorbs energy from its surroundings
When a compound breaks down into two or more simpler substances (200)
Electrons are transferred from one reactant to another (204)
Two or more substances react to form a single substance (200)
A counting unit to measure amounts of substance since chemical reactions involve large numbers of small particles (195)

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New substances formed as a result of a chemical reaction (192)
Two compounds exchange positive ions and form two new compounds (203)
A substance reacts rapidly with oxygen often producing heat and light (204)
One element takes the place of another element in a compound (202)
A chemical reaction in which the conversion of reactants into products and the conversion of products into reactants happens at the same time
A substance that undergoes change in a chemical reaction (192)
A state in which the forward and reverse paths of a physical or chemical change take place at the same rate (216)
The rate at which reactants change into products over time (212)

19 Clues: The mass of one mole of a substance (196) • The energy stored in chemical bonds (206) • A system releases energy to its surroundings • A system absorbs energy from its surroundings • Electrons are transferred from one reactant to another (204) • Two or more substances react to form a single substance (200) • ...

Compounds & Chemicals Reactions 2023-08-15

Compounds & Chemicals Reactions crossword puzzle

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A chemical compound that changes its colour in presence of an acid or base.
A galvanic process by which metals deteriorate through oxidation
Any substance composed of identical molecules consisting of atoms of two or more chemical elements.
When cations and anions in aqueous solution combine to form an insoluble ionic
A substance that produces hydrogen (H+) ions when it is added to water.
A chemical bond that involves the sharing of electrons to form electron pairs between atoms.
Any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators
Two or more atoms connected by chemical bonds
Quantitative measure of the acidity or basicity of aqueous or other liquid solutions.
A chemical reaction between substances
Type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
Consists of a central nucleus that is surrounded by one or more negatively charged electrons.
S(s)+O2(g)→SO2(g)

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HCl + NaOH → NaCl + H2O.
CaCO3 (s) + heat → CaO (s) + CO2 (g)
A lasting attraction between atoms or ions that enables the formation of molecules, crystals, and other structures.
During an _____________, energy is constantly given off, often in the form of heat.
An ______________ releases heat, causing the temperature of the immediate surroundings to rise.
Occur when chemical bonds between atoms are formed or broken.

19 Clues: S(s)+O2(g)→SO2(g) • HCl + NaOH → NaCl + H2O. • CaCO3 (s) + heat → CaO (s) + CO2 (g) • A chemical reaction between substances • Two or more atoms connected by chemical bonds • Occur when chemical bonds between atoms are formed or broken. • A galvanic process by which metals deteriorate through oxidation • ...

Chemical Reaction Vocabulary 2023-01-24

Chemical Reaction Vocabulary crossword puzzle

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to change the order of something
able to cause destruction
a substance added to plants to help them grow healthily
made out of a group of atoms
a subtance cahnging from solid to liquid
what everything is made out of
something that can be seen,heard, or smelt about a subtance
a subtance during a chemical reaction
letters and numbers showing the types and number of atoms that repeat to make a subtance

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a large group of atoms connected to created to make a structure
the temperature when a liquid turns to a gas
atoms rearranging to form a new subtance
a replica to represent something
size of something

14 Clues: size of something • able to cause destruction • made out of a group of atoms • what everything is made out of • to change the order of something • a replica to represent something • a subtance during a chemical reaction • atoms rearranging to form a new subtance • a subtance cahnging from solid to liquid • the temperature when a liquid turns to a gas • ...

Exam Study Guide 2020-01-17

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A positive electric charge.
The transfer of carbon through the organisms in a food web.
An exothermic reaction in which something reacts with oxygen.
The combination of ideas to form a system.
Components living.
A chemical reaction where a single reactant breaks down to two or more products
Chemical reaction that absorbs heat.
A negatively charged ion.
Is something that acts like a storage source.
Respiration A chemical process performed by plants and animals.
Components nonliving.

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A negative electric charge.
The waste and remains of once living organisms.
fuel Comes from the dead remains of ancient plants and animals.
Ancient plants which have been buried for hundreds of million of years to produce fossil fuels.
Chemical reaction that releases energy through light or heat.
A chemical process performed by plants.
reservoir Is a storage source for carbon.
Where the electrons are shared equally.
A positively charged ion.

20 Clues: Components living. • Components nonliving. • A negatively charged ion. • A positively charged ion. • A negative electric charge. • A positive electric charge. • Chemical reaction that absorbs heat. • A chemical process performed by plants. • Where the electrons are shared equally. • reservoir Is a storage source for carbon. • The combination of ideas to form a system. • ...

Crossword Puzzle Biomolecules 2024-05-03

Crossword Puzzle Biomolecules crossword puzzle

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a substance that enables a chemical reaction to proceed at a usually faster rate
the minimum energy required to cause a process (such as a chemical reaction) to occur.
made up of amino acids
it is essential for digestion
building block of a larger
proteins that speed up chemical reactions
fast source of energy
the substances that participate in a chemical reaction
carbon based molecule made of living things
long-term source of energy
an element on the periodic

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an enzyme that binds to a protein or other substance during a reaction.
the building blocks of the fat in our bodies
acid monomer that makes up proteins
a base that contains nitrogen
formed when any smaller molecules bond together
a molecule that an enzyme reacts with
examples include DNA and RNA
a pentose (5-carbon sugar) biological molecule
products are the species formed from chemical reactions.

20 Clues: fast source of energy • made up of amino acids • building block of a larger • long-term source of energy • an element on the periodic • examples include DNA and RNA • a base that contains nitrogen • it is essential for digestion • acid monomer that makes up proteins • a molecule that an enzyme reacts with • proteins that speed up chemical reactions • ...

Chemical reactions 2024-08-13

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Principle stating that mass in a closed system remains constant, regardless of the processes acting inside the system.
A chemical reaction that typically involves burning with oxygen and releases energy.
A property of an acid where the substance can destroy or irreversibly damage another substance by chemical action.
The color often associated with acids in pH indicators.
The gradual destruction of materials, usually metals, by chemical reactions with the environment.
The slow oxidation of iron in the presence of water and oxygen, forming iron oxide.
A substance that donates hydrogen ions and has a pH less than 7.
The ion formed when a base dissociates in water.

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A symbolic representation of a chemical reaction using chemical formulas.
A substance that takes part in and undergoes change during a chemical reaction.
The taste associated with many bases.
The reaction between an acid and a base to form water and a salt.
A simple sugar that is an important energy source in living organisms.
A type of reaction that absorbs heat from its surroundings.
The process by which plants use sunlight to synthesize foods from carbon dioxide and water.
A substance formed as the result of a chemical reaction.
A ______ equation is a way of representing a chemical reaction using the names of the reactants and products.

17 Clues: The taste associated with many bases. • The ion formed when a base dissociates in water. • The color often associated with acids in pH indicators. • A substance formed as the result of a chemical reaction. • A type of reaction that absorbs heat from its surroundings. • A substance that donates hydrogen ions and has a pH less than 7. • ...

Chemical reactions 2024-08-13

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Principle stating that mass in a closed system remains constant, regardless of the processes acting inside the system.
A chemical reaction that typically involves burning with oxygen and releases energy.
A property of an acid where the substance can destroy or irreversibly damage another substance by chemical action.
The color often associated with acids in pH indicators.
The gradual destruction of materials, usually metals, by chemical reactions with the environment.
The slow oxidation of iron in the presence of water and oxygen, forming iron oxide.
A substance that donates hydrogen ions and has a pH less than 7.
The ion formed when a base dissociates in water.

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A symbolic representation of a chemical reaction using chemical formulas.
A substance that takes part in and undergoes change during a chemical reaction.
The taste associated with many bases.
The reaction between an acid and a base to form water and a salt.
A simple sugar that is an important energy source in living organisms.
A type of reaction that absorbs heat from its surroundings.
The process by which plants use sunlight to synthesize foods from carbon dioxide and water.
A substance formed as the result of a chemical reaction.
A ______ equation is a way of representing a chemical reaction using the names of the reactants and products.

science 2022-05-06

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detailed information on how to handle dangerous substances at work
transformation combining to make a different product
installed device to remove sulfur and other pollutants
a reaction that involves two substances to balance it
human made substance
man made synthetic materials
any chemical reaction that absorbs heat
chemical substance that kills animals or plants
compounds that trap heat in the atmosphere
acidic liquids deposited on earth

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any chemical reaction that releases heat
chemical reaction that produces heat and light
earths natural process of warming and cooling
chemical that kills certain plants
chemical process that breaks down metals
combined metals formed to make one

16 Clues: human made substance • man made synthetic materials • acidic liquids deposited on earth • chemical that kills certain plants • combined metals formed to make one • any chemical reaction that absorbs heat • any chemical reaction that releases heat • chemical process that breaks down metals • compounds that trap heat in the atmosphere • ...

Chapter 2 2022-10-04

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A chemical reaction that produces carbon dioxide and water.
A process in which atoms rearrange to form a new substance.
A reaction that switches places forming a new compound.
A catalyst that speeds up a reaction.
substance that increase reaction rate by lowering the activation energy.
A reaction that releases thermal energy.

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A substance that slows or stops a reaction.
The starting substances in a chemical reaction.
A chemical reaction that has two substances combine to make a compound.
The small amount of energy needed to start a reaction.
The substances produced by a chemical reaction.
A reaction that absorbs energy.
A chemical reaction when one compound breaks down into two substances.

Q3 Review Crossword 2024-05-22

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_________ Yield: The comparison between the theoretical yield and the actual yield to determine lab accuracy
A solid that is formed during a chemical reaction
What do we need to do in order to uphold the law of conservation of mass during a chemical equation?
A chemical reaction that releases more energy than it absorbs
A + B → AB
_________ Mass: Used to convert between moles and grams in a stoichiometry problem
_________ Reactant: There is a left over amount of this reactant at the end of an experiment.
_________ change is when a substance maintains its physical properties.
The substance(s) at the beginning of a chemical reaction
_________ Reactant: The reactant that is used up during a chemical reaction and inhibits the production of more product
The study of the ratios between reactants and products during a chemical reaction
This law is only for gases and relates pressure, volume, temperature, and number of moles to one another.
AB → A + B

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For gases it is measured in K.
A substance that is dissolved in water
For gases it is measured in atm.
_________ Replacement: AB + CD → AD + CB
For gases it is measured in L.
Law of _________ of Mass
A hydrocarbon reacting with oxygen to produce carbon dioxide and water
_________ Yield: The amount that should be produced during an experiment based on stoichiometry calculations
_________ Yield: The amount that is produced during a lab experiment
_________ Replacement: A + BC → AC + B
_________ change is when a substance reacts and changes into a different substance.
A chemical reaction that absorbs more energy than it releases
Numbers added to a chemical equation in order to balance the amount of atoms on either side of the equation.
The substance(s) at the ending of a chemical reaction
Mole _________: Used to convert from moles of what we are given to moles of what we want in a stoichiometry problem
Diatomic Seven

29 Clues: A + B → AB • AB → A + B • Diatomic Seven • Law of _________ of Mass • For gases it is measured in K. • For gases it is measured in L. • For gases it is measured in atm. • A substance that is dissolved in water • _________ Replacement: A + BC → AC + B • _________ Replacement: AB + CD → AD + CB • A solid that is formed during a chemical reaction • ...

Chemistry crossword 2015-11-23

Across

matter that exist as a solid,liquid or gas
substance that helps a chemical reaction to proceed more quickly
vertical column of elements in the periodic table
positively charged part of an atom
the smallest part of an element that is representative of that element
an experiment in which all reactants and all the products of a chemical reaction are all accounted for
chemical reaction that absorbs heat energy
groups of atoms acting as one
change in the appearance or state of a substance that does not change the compositions
compound with a metal and a non metal combined
positively charged particle in the nucleus of an atom
group 17 elements in the periodic table
chemical reaction that releases heat energy
characteristic that that describes a particular substance
atom that has become a electrically charged because it has lost or gained electrons

Down

the materials at the start of the reaction
invisible negativity charged particle that orbits the nucleus of an atom
element that has both metallic and non-metallic properties
the materials produced by the reaction
change that results when two or more substances react to create a different substance or substances
slow chemical change that occurs when oxygen in the air reacts with a metal
an experiment in which one or more products of a chemical reactions can escape
chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
chemical combination of two or more elements in a specific ratio
table a table in which the element are organized

25 Clues: groups of atoms acting as one • positively charged part of an atom • the materials produced by the reaction • group 17 elements in the periodic table • the materials at the start of the reaction • matter that exist as a solid,liquid or gas • chemical reaction that absorbs heat energy • chemical reaction that releases heat energy • ...

Chemistry Crossword 2018-02-12

Across

the science that deals with the composition and properties of substances and various elementary forms of matter.
a property of a physical body and a measure of its resistance to acceleration when a net force is applied.
a type of reaction in which multiple reactants combine to form a single product.
a chemical bond that involves the sharing of electron pairs between atoms.
a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.
the table of elements is called the ______ ____.
a substance that is formed as the result of a chemical reaction.
a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.
6.022×10^23
a band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.
a reaction between any combustible material and an oxidizer to form an oxidized product.

Down

a substance that takes part in and undergoes change during a reaction.
the basic unit of an element.
a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound.
a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.
mass/volume.
_____ is made up of atoms.
a type of chemical reaction that involves breaking down a compound into smaller compounds or individual elements.
a substance that cannot be broken down into simpler substances by chemical means.

20 Clues: 6.022×10^23 • mass/volume. • _____ is made up of atoms. • the basic unit of an element. • the table of elements is called the ______ ____. • a substance that is formed as the result of a chemical reaction. • a substance that takes part in and undergoes change during a reaction. • a chemical bond that involves the sharing of electron pairs between atoms. • ...

Chapter 8 Chemistry Vocab 2023-03-08

Across

occurs when a compound is broken down into simpler substances
a substance that dissolves in water, dissociating completely into ions
a chemical showing the complete (undissociated) forms of all reactants and products
a reaction that forms water when an acid is mixed with a base
the new substance formed by a chemical reaction; it is shown to the right of the reaction arrow
a substance that produces hydrogen ions in aqueous solution; a proton donor
a base that completely dissociates to produce ions in solution
a chemical equation for a reaction in solution showing only those components that are directly involved in the reaction; strong electrolytes are represented as ions
the solid that forms in a precipitation reaction
the percent by mass of a component of a mixture or of a given element in a compound
a solid that readily dissolves in water
an ionic compound
a process in which one or more substances are changed into one or more new substances by the reorganization of component atoms
a chemical equation that has the same number of each type of atom on the product side and the reactant side
a formula that gives the exact numbers and types of atoms in a molecule of a substance
an oxidation–reduction reaction that involves
a small unit of mass equal to

Down

a chemical reaction in which a compound is formed from simpler materials
a reaction in which ions in two compounds exchange places, forming two new compounds
a chemical equation for a reaction in solution representing all strong electrolytes
the weighted average of the masses of all the isotopes of an element
a chemical reaction involving the transfer of electrons
a reaction in which a solid forms and separates from the solution as a solid
the number of atoms in exactly of pure 12C, equal to
ions present in solution that do not participate directly in a reaction
the starting substance of a chemical reaction shown to the left of the reaction arrow
a formula that gives the simplest whole number ratio of the atoms present in a compound
a substance that produces hydroxide ions in solution; a proton accepto
the number equal to the number of carbon atoms in exactly of pure 12C; Avogadro’s number; one mole represents
(slightly soluble solid) a solid that dissolves to such a small degree that it is not detectable to the naked eye
an acid that completely dissociates (ionizes) to produce ions in solution
a representation of chemical reaction using the formulas of the starting substances that react and the new substances that are formed
the mass in grams of one mole of a compound

chemical reactions 2023-04-27

Across

more energy required to break bonds than is released when new ones are formed
states atoms, ions, and molecules must collide in order to react
a change in which one or more substances are converted into new substances
starting substances in a chemical reaction
activation energy required is less than that released when new bonds form
substance that speeds up a chemical reaction without permanently changing itself
reaction where energy is given off
mass in grams of one mole of a substance
an insoluble compound that comes out of solution during this type of reaction

Down

when the energy needed to keep a reaction going is thermal
when a substance reacts with oxygen to produce energy as heat and light
is a state in which forward and reverse reactions or processes proceed at equal rates
end substances in a chemical reaction
the rate at which reactants change into products
two or more substances combine to form another substance
one or more substance breaks down into two or more substances
represent the number of units of each substance taking part in a reaction
way to describe a chemical reaction using chemical formulas and other symbols
the amount of a substance that contains 6.02 x 10^23

19 Clues: reaction where energy is given off • end substances in a chemical reaction • mass in grams of one mole of a substance • starting substances in a chemical reaction • the rate at which reactants change into products • the amount of a substance that contains 6.02 x 10^23 • two or more substances combine to form another substance • ...

Chapter 7 vocab 2023-01-03

Across

a representation of a chemical reaction in which the reactants and products are expressed as formulas
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
a chemical reaction that absorbs energy from its surroundings
a chemical reaction that releases energy to its surroundings
new substances formed as a result of a chemical reaction
a chemical reaction in which two or more substances react to form a single substance

Down

the mass of one mole of a substance
a chemical reaction in which two compounds exchange positive ions and form new compounds
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction in which a compound breaks down into two or more simpler substances
the energy stored in chemical bonds
substances that undergo change in a chemical reaction

Chapter 7 vocab 2023-01-03

Across

substances that undergo change in a chemical reaction
an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
a chemical reaction in which two or more substances react to form a single substance
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction that absorbs energy from its surroundings
a chemical reaction that releases energy to its surroundings

Down

a representation of a chemical reaction in which the reactants and products are expressed as formulas
the energy stored in chemical bonds
a chemical reaction in which a compound breaks down into two or more simpler substances
new substances formed as a result of a chemical reaction
a chemical reaction in which two compounds exchange positive ions and form new compounds
the mass of one mole of a substance

13 Clues: the energy stored in chemical bonds • the mass of one mole of a substance • substances that undergo change in a chemical reaction • new substances formed as a result of a chemical reaction • a chemical reaction that releases energy to its surroundings • a chemical reaction that absorbs energy from its surroundings • ...

STOICHIOMETRY 2024-04-01

Across

Substances formed as a result of a chemical reaction.
Numbers in front of a formula in a balanced chemical equation that indicate the proportion of molecules or formula units involved in the reaction.
Substances consumed or altered in a chemical reaction.
The reactant in a chemical reaction that remains when the reaction stops because the limiting reactant is all used up.
number The number of units in one mole of any substance, approximately
A symbolic representation of a chemical reaction, showing the reactants and products and their relative quantities
A chemical equation where the number of atoms for each element is equal on both sides of the equation.
The study of the quantitative relationships between the elements in compounds and the reactants and products in chemical reactions.
The reactant that is completely consumed in a reaction, determining the maximum amount of product that can be formed.

Down

A process that leads to the transformation of one set of chemical substances to another.
The unit of amount in chemistry representing Avogadro's number of particles.
A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound.
The mass of a given substance (chemical element or chemical compound) divided by its amount of substance, measured in grams per mole.
The ratio between the amounts in moles of any two compounds involved in a chemical reaction.
The ratio of the masses of substances involved in a reaction.

15 Clues: Substances formed as a result of a chemical reaction. • Substances consumed or altered in a chemical reaction. • The ratio of the masses of substances involved in a reaction. • number The number of units in one mole of any substance, approximately • The unit of amount in chemistry representing Avogadro's number of particles. • ...

Chemical Reactions 2025-01-13

Across

the chemical present before a chemical reaction occurs
the chemicals present after a chemical reaction occurs
a reaction that releases heat to the surroundings
a reaction that absorbs heat from the surroundings
a shorthand that uses chemical symbols and molecular formulas to show what occurs during a chemical reaction
the addition of oxygen to a chemical substance
a natural law stating that the same amount of mass is present before and after a chemical reaction

Down

a type of chemical reaction that involves the combination of oxygen and fuel
a type of chemical reaction in which two or more substances combine and form one compound
a type of chemical reaction that involves one chemical compound that breaks into two or more separate compounds or elements
a type of chemical reaction that involves the exchange of ions in ionic compounds
the rearrangement of atoms by the breaking and reforming of chemical bonds

12 Clues: the addition of oxygen to a chemical substance • a reaction that releases heat to the surroundings • a reaction that absorbs heat from the surroundings • the chemical present before a chemical reaction occurs • the chemicals present after a chemical reaction occurs • the rearrangement of atoms by the breaking and reforming of chemical bonds • ...

ch 7 vocab 2023-01-04

Across

substances that undergo change in a chemical reaction
an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
a chemical reaction in which two or more substances react to form a single substance
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction that absorbs energy from its surroundings
a chemical reaction that releases energy to its surroundings

Down

a representation of a chemical reaction in which the reactants and products are expressed as formulas
the energy stored in chemical bonds
a chemical reaction in which a compound breaks down into two or more simpler substances
new substances formed as a result of a chemical reaction
a chemical reaction in which two compounds exchange positive ions and form new compounds
the mass of one mole of a substance

Chapter 7 vocab 2023-01-04

Across

- substances that undergo change in a chemical reaction
- an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
- a chemical reaction in which two or more substances react to form a single substance
- numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
- a chemical reaction in which one element takes the place of another element in a compound
- a chemical reaction that absorbs energy from its surroundings
- a chemical reaction that releases energy to its surroundings

Down

- a representation of a chemical reaction in which the reactants and products are expressed as formulas
- the energy stored in chemical bonds
- a chemical reaction in which a compound breaks down into two or more simpler substances
- new substances formed as a result of a chemical reaction
- a chemical reaction in which two compounds exchange positive ions and form new compounds
- the mass of one mole of a substance

13 Clues: - the energy stored in chemical bonds • - the mass of one mole of a substance • - substances that undergo change in a chemical reaction • - new substances formed as a result of a chemical reaction • - a chemical reaction that releases energy to its surroundings • - a chemical reaction that absorbs energy from its surroundings • ...

Chapter 7 vocab 2023-01-04

Across

substances that undergo change in a chemical reaction
an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
a chemical reaction in which two or more substances react to form a single substance
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction that absorbs energy from its surroundings
a chemical reaction that releases energy to its surroundings

Down

a representation of a chemical reaction in which the reactants and products are expressed as formulas
the energy stored in chemical bonds
a chemical reaction in which a compound breaks down into two or more simpler substances
new substances formed as a result of a chemical reaction
a chemical reaction in which two compounds exchange positive ions and form new compounds
the mass of one mole of a substance

Chemistry. 2018-01-03

Across

stances that help a reaction proceed faster.
a natural catalyst
slow chemical change that occurs when oxygen in the air reacts with a metal.
WHMIS
results in the formation of a different substance or substances.
chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy.
every element is composed of a particle called a(n)...
new materials produced by the reaction.
material that cannot be broken down into any simpler substance

Down

chemical reaction that absorbs heat energy.
a particle smaller than an atom
chemical reaction that releases heat energy.
a chemical reaction that takes place in the cells in your body.
positively charged particles
describes how a substance interacts with other substances such as acids.
made of only one kind of matter and has a unique set of properties that sets it apart from any other kind of matter.
neutral particles

17 Clues: WHMIS • neutral particles • a natural catalyst • positively charged particles • a particle smaller than an atom • new materials produced by the reaction. • chemical reaction that absorbs heat energy. • chemical reaction that releases heat energy. • stances that help a reaction proceed faster. • every element is composed of a particle called a(n)... • ...

Enzymes and Energy 2025-10-20

Across

Energy needed to start a reaction
An agent that speeds up the rate of a chemical reaction
A type of chemical reaction that requires an addition of free energy (ΔG > 0)
Cellular energy molecules (adenine, ribose, 3 phosphates groups)
type of energy that relates to a ball rolling down a hill
type of energy that relates to a ball resting on top of a staircase
Usable energy (G)
The location in an enzyme where a chemical reaction takes place.
Breaks down molecules through hydrolysis
reaction that adds a phosphate group to molecule

Down

proteins that catalyze/ speed up reactions
molecule gets larger by gaining electrons
____ is the conformational changes that causes substrate to bind more tightly to enzyme
mechanism prevents the overproduction of a substance
building of molecules through dehydration
A type of chemical reaction that releases free energy (ΔG < 0)
_______ potential energy is contained within covalent bonds in molecules.

17 Clues: Usable energy (G) • Energy needed to start a reaction • Breaks down molecules through hydrolysis • molecule gets larger by gaining electrons • building of molecules through dehydration • proteins that catalyze/ speed up reactions • reaction that adds a phosphate group to molecule • mechanism prevents the overproduction of a substance • ...

morgans crossword puzzle 2024-05-15

morgans crossword puzzle crossword puzzle

Across

when two substances combined and create a new one
the amount of space a object takes up
the quantity of matter within a given object
the ability to do work
a chemical reaction witch are formed due to a chemical reaction
a form of energy that is transfer between two or more substances with different temp
the smallest part of a substance
chemical reaction when they absorb heat energy from there surroundings

Down

anything that takes up space or can be weighed
a substance that speeds up a chemical reaction
a link between atoms and molecules
a substance made from two or more different elements
releases heat cause the immediate surroundings to rise
a substance that cant be broken down
the starting materials in a reaction that undergo a chemical change
a material composed of two or more substance
a substance they can be observed or measured without changing idenity
the action or property of molecules

18 Clues: the ability to do work • the smallest part of a substance • a link between atoms and molecules • the action or property of molecules • a substance that cant be broken down • the amount of space a object takes up • the quantity of matter within a given object • a material composed of two or more substance • anything that takes up space or can be weighed • ...

chemical reactions 2019-04-30

Across

all symbol equations must be this
used to test for carbon dioxide
the chemicals made in a reaction
reaction where heat is transferred to the surroundings
the mass of reactants always equals the mass of the products
a fuel made millions of years ago
change where a chemical changes form but is the same substance

Down

when iron is oxidised
speeds up a reaction but is not used up
decomposition using heat
in an equation means react to make
reaction where heat is taken in from the surroundings
burning
reaction when a substance is broken down into simpler substances
will run out one day
the chemicals used to start a reaction
a chemical reaction where oxides are made
change when 2 reactants form a new substance
burns to release energy

19 Clues: burning • will run out one day • when iron is oxidised • burns to release energy • decomposition using heat • used to test for carbon dioxide • the chemicals made in a reaction • all symbol equations must be this • a fuel made millions of years ago • in an equation means react to make • the chemicals used to start a reaction • speeds up a reaction but is not used up • ...

Chemical reactions 2024-08-13

Across

Principle stating that mass in a closed system remains constant, regardless of the processes acting inside the system.
A chemical reaction that typically involves burning with oxygen and releases energy.
A property of an acid where the substance can destroy or irreversibly damage another substance by chemical action.
The color often associated with acids in pH indicators.
The gradual destruction of materials, usually metals, by chemical reactions with the environment.
The slow oxidation of iron in the presence of water and oxygen, forming iron oxide.
A substance that donates hydrogen ions and has a pH less than 7.
The ion formed when a base dissociates in water.

Down

A symbolic representation of a chemical reaction using chemical formulas.
A substance that takes part in and undergoes change during a chemical reaction.
The taste associated with many bases.
The reaction between an acid and a base to form water and a salt.
A simple sugar that is an important energy source in living organisms.
A type of reaction that absorbs heat from its surroundings.
The process by which plants use sunlight to synthesize foods from carbon dioxide and water.
A substance formed as the result of a chemical reaction.
A ______ equation is a way of representing a chemical reaction using the names of the reactants and products.

Chemistry 2024-03-18

Across

Matter cannot be created or destroyed
Bonds formed when atoms share electrons
A short way to show what elements are in a compound and how many of each there are
Substances that's slow down or stop chemical reactions
Things that come from nature
Substances that make chemical reactions happen faster
Pure substances made up of only one type of atom
The new substances form the chemical reaction
2 or more substances that join together
A chemical reaction that absorbs heat energy

Down

Made by people
A chemical reaction that releases heat energy
Small numbers written to show how many atoms of each element are in a compound
Things that make up everything around us
When substances change into different ones
Numbers written in front of chemical formulas to balance equations
Bonds formed by the attraction between positively and negatively charged ions
The substances you start within a chemical reaction
Heat Energy

19 Clues: Heat Energy • Made by people • Things that come from nature • Matter cannot be created or destroyed • Bonds formed when atoms share electrons • 2 or more substances that join together • Things that make up everything around us • When substances change into different ones • A chemical reaction that absorbs heat energy • A chemical reaction that releases heat energy • ...

Physical science 2023-09-28

Across

sns
ab
sa
ans
the substances that undergo change in a chemical reaction (the starting materials of a reaction)
snds
reaction ab
ds
and

Down

san
an
a representation of a chemical reaction in which reactants and products are expressed as formulas
an
ab
smd
sjds
the new substances that are formed as a result of a chemical reaction

17 Clues: an • an • ab • ab • sa • ds • san • sns • smd • ans • and • sjds • snds • reaction ab • the new substances that are formed as a result of a chemical reaction • the substances that undergo change in a chemical reaction (the starting materials of a reaction) • a representation of a chemical reaction in which reactants and products are expressed as formulas

Chemical reactions 2024-08-13

Across

Principle stating that mass in a closed system remains constant, regardless of the processes acting inside the system.
A chemical reaction that typically involves burning with oxygen and releases energy.
A property of an acid where the substance can destroy or irreversibly damage another substance by chemical action.
The color often associated with acids in pH indicators.
The gradual destruction of materials, usually metals, by chemical reactions with the environment.
The slow oxidation of iron in the presence of water and oxygen, forming iron oxide.
A substance that donates hydrogen ions and has a pH less than 7.
The ion formed when a base dissociates in water.

Down

A symbolic representation of a chemical reaction using chemical formulas.
A substance that takes part in and undergoes change during a chemical reaction.
The taste associated with many bases.
The reaction between an acid and a base to form water and a salt.
A simple sugar that is an important energy source in living organisms.
A type of reaction that absorbs heat from its surroundings.
The process by which plants use sunlight to synthesize foods from carbon dioxide and water.
A substance formed as the result of a chemical reaction.
A ______ equation is a way of representing a chemical reaction using the names of the reactants and products.

Ch 4 Vocab 2019-10-04

Across

ion that does not undergo a chemical or physical change during a reaction, but its presence is required to maintain charge neutrality
substance added to the sample in a titration analysis to permit visual detection of the end point
quantitative chemical analysis method involving the separation of an analyte from a sample by a physical or chemical process and subsequent mass measurements of the analyte, reaction product, and/or sample
relationships between the amounts of reactants and products of a chemical reaction
volume of titrant solution required to react completely with the analyte in a titration analysis; provides a stoichiometric amount of titrant for the sample’s analyte according to the titration reaction
ratio of coefficients in a balanced chemical equation, used in computations relating amounts of reactants and products
substance that produces H3O+ when dissolved in water
reaction that produces one or more insoluble products; when reactants are ionic compounds, sometimes called double-displacement or metathesis
solution containing a known concentration of substance that will react with the analyte in a
the extent to which a substance may be dissolved in water, or any solvent
(also, oxidation state) the charge each atom of an element would have in a compound if the compound were ionic
amount of product formed in a reaction
reactant present in an amount greater than required by the reaction stoichiometry
process in which an element’s oxidation number is increased by loss of electrons
insoluble product that forms from reaction of soluble reactants
reaction involving the transfer of a hydrogen ion between reactant species
symbolic representation of a chemical reaction
(also, replacement) redox reaction involving the oxidation of an elemental substance by an ionic species
substance undergoing a chemical or physical change; shown on the left side of the arrow in a chemical
base that reacts completely when dissolved in water to yield hydroxide ions
acid that reacts only to a slight extent when dissolved in water to yield hydronium ions
of relatively high solubility; dissolving to a relatively large extent
vigorous redox reaction producing significant amounts of energy in the form of heat and, sometimes, light
reaction between an acid and a base to produce salt and water
substance that produces OH− when dissolved in water
an equation that shows whether each reactant loses or gains electrons in a reaction.

Down

number placed in front of symbols or formulas in a chemical equation to indicate their relative amount
(also, oxidant) substance that brings about the oxidation of another substance, and in the process becomes reduced
substance formed by a chemical or physical change; shown on the right side of the arrow in a chemical equation
the determination of the amount or concentration of a substance in a sample
of relatively low solubility; dissolving only to a slight extent
acid that reacts completely when dissolved in water to yield hydronium ions
measure of the efficiency of a reaction, expressed as a percentage of the theoretical yield
titration analysis quantitative chemical analysis method that involves measuring the volume of a reactant solution required to completely react with the analyte in a sample
(also, redox reaction) reaction involving a change in oxidation number for one or more reactant elements
reactant present in an amount lower than required by the reaction stoichiometry, thus limiting the amount of product generated
chemical equation in which all reactants and products are represented as neutral substances net ionic equation chemical equation in which only those dissolved ionic reactants and products that undergo a
gravimetric technique used to determine the elemental composition of a compound via the collection and weighing of its gaseous combustion products
chemical equation in which all dissolved ionic reactants and products, including spectator ions, are explicitly represented by formulas for their dissociated ions
ionic compound that can be formed by the reaction of an acid with a base that contains a cation and an anion
amount of product that may be produced from a given amount of reactant(s) according to the reaction stoichiometry
device used for the precise delivery of variable liquid volumes, such as in a titration analysis
measured volume of titrant solution that yields the change in sample solution appearance or other property expected for stoichiometric equivalence (see equivalence point)
chemical equation with equal numbers of atoms for each element in the reactant and product
process in which an element’s oxidation number is decreased by gain of electrons
chemical species of interest
(also, reductant) substance that brings about the reduction of another substance, and in the process becomes oxidized
or physical change are represented (excludes spectator ions)
base that reacts only to a slight extent when dissolved in water to yield hydroxide ions
than hydroxide or oxide

50 Clues: than hydroxide or oxide • chemical species of interest • amount of product formed in a reaction • symbolic representation of a chemical reaction • substance that produces OH− when dissolved in water • substance that produces H3O+ when dissolved in water • or physical change are represented (excludes spectator ions) • ...

Chapter 2 2022-10-04

Across

A reaction that releases thermal energy.
The small amount of energy needed to start a reaction.
A reaction that switches places forming a new compound.
A chemical reaction that produces carbon dioxide and water.
A chemical reaction that has two substances combine to make a compound.
The starting substances in a chemical reaction.

Down

A process in which atoms rearrange to form a new substance.
substance that increase reaction rate by lowering the activation energy.
A reaction that absorbs energy.
A catalyst that speeds up a reaction.
The substances produced by a chemical reaction.
A chemical reaction when one compound breaks down into two substances.
A substance that slows or stops a reaction.

13 Clues: A reaction that absorbs energy. • A catalyst that speeds up a reaction. • A reaction that releases thermal energy. • A substance that slows or stops a reaction. • The substances produced by a chemical reaction. • The starting substances in a chemical reaction. • The small amount of energy needed to start a reaction. • ...

Chapter 2 2022-10-04

Across

A reaction that releases thermal energy.
The small amount of energy needed to start a reaction.
A reaction that switches places forming a new compound.
A chemical reaction that produces carbon dioxide and water.
A chemical reaction that has two substances combine to make a compound.
The starting substances in a chemical reaction.

Down

A process in which atoms rearrange to form a new substance.
substance that increase reaction rate by lowering the activation energy.
A reaction that absorbs energy.
A catalyst that speeds up a reaction.
The substances produced by a chemical reaction.
A chemical reaction when one compound breaks down into two substances.
A substance that slows or stops a reaction.

Unit 3 2025-11-13

Across

| A solution that temporarily contains more than the maximum amount of dissolved solute (more than a saturated solution) at a specific temperature.
| A process or reaction that releases energy, usually in the form of heat, to the surroundings.
a homogeneous mixture of two or more substances
Reaction | A process that involves the rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
Displacement | A type of chemical reaction where the ions of two compounds exchange places in an aqueous solution to form two new compounds.
| A solid that is formed in a solution during a chemical reaction. The formation of a precipitate is often indicated by the abbreviation $ (s) $ in a chemical equation.
Equation | A symbolic representation of a chemical reaction using chemical formulas to represent the reactants and products. The arrow (→) indicates the direction of the reaction.
Displacement | A type of chemical reaction where one element replaces another element in a compound.
| A number written slightly below and to the right of a chemical symbol in a formula, indicating the number of atoms of that element in the molecule.

Down

| A solution that contains the maximum amount of dissolved solute possible under the given conditionsUnsaturated | A solution that contains less than the maximum amount of dissolved solute.
the substance that is dissolved in another substance (the solvent) to form a solution. It's usually the component present in the smaller amount.
| A substance that produces hydroxide ions (OH−) when dissolved in water
| A solution that contains less than the maximum amount of dissolved solute.
| A type of chemical reaction where a single compound breaks down into two or more simpler substances.
| A process or reaction that absorbs energy, usually in the form of heat, from the surroundings.
| A solution containing a relatively large amount of solute per unit volume of solvent.
| A number placed in front of a chemical formula in a chemical equation to balance the reaction, indicating the relative number of molecules or moles of the substance.
| A number or symbol written slightly above and to the right of a chemical symbol, usually indicating the charge (oxidation state) of an ion
| The process where an ionic compound or a molecule separates or breaks apart into smaller ions, atoms, or molecules, usually when dissolved in a solvent like water.
| A type of chemical reaction where two or more simple substances combine to form a more complex substance.
| A substance that produces hydrogen ions (H+) when dissolved in water

21 Clues: a homogeneous mixture of two or more substances • | A substance that produces hydrogen ions (H+) when dissolved in water • | A substance that produces hydroxide ions (OH−) when dissolved in water • | A solution that contains less than the maximum amount of dissolved solute. • ...

Vocab 2021-11-30

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replacement,a chemical reaction which the negative ions in two compounds switch place forming two new compounds
reaction,a process in which atoms of one or more substances rearrange to form into new substances
a chemical reaction that releases thermal energy
a substance that slows or even stopa a chemical reaction
a chemical reaction in which a substance combines with oxygen and releases speicies
replacement, a type of chemical reaction in which one element replaces another element in a compound
a type of chemical reaction in which two or more substances combine and form one compound

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a chemical reaction that aborbes thermal energy
equation, a description of a reaction using element symbols and chemical formulus
of conservation of mass, law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after a chemical reaction.
a type of chemical reaction in which one compound breaks down and forms two or more substances
energy, the minimum amount of energy required to start a chemical reaction in which the negative ions in two compounds switch place forming two new compounds
a substance that increases the rate by lowering the activation energy of reaction

13 Clues: a chemical reaction that aborbes thermal energy • a chemical reaction that releases thermal energy • a substance that slows or even stopa a chemical reaction • equation, a description of a reaction using element symbols and chemical formulus • a substance that increases the rate by lowering the activation energy of reaction • ...

Chapter 2 2022-10-04

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A reaction that switches places forming a new compound.
The substances produced by a chemical reaction.
A reaction that releases thermal energy.
substance that increase reaction rate by lowering the activation energy.
A reaction that absorbs energy.
A chemical reaction that produces carbon dioxide and water.
A chemical reaction when one compound breaks down into two substances.
A substance that slows or stops a reaction.

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The small amount of energy needed to start a reaction.
The starting substances in a chemical reaction.
A process in which atoms rearrange to form a new substance.
A catalyst that speeds up a reaction.
A chemical reaction that has two substances combine to make a compound.

chemistry of life 2021-09-15

Across

molecules composed of many monomers; makes up molecules
acid macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
pure substance that consists entirely of one type of atom
negatively charged particle that orbits the nucleus in the electron cloud
electron electron found in the outermost shell of an atom helps to determine bonding
small chemical unit that makes up a polymer
the basic unit of matter
macromolecule made mostly from carbon and hydrogen atoms includes fats, oils, and waxes
compound with an amino group on one end and a carboxyl group on the other end
reaction- a reaction that releases energy
a large organic molecule made up of many atoms
mass equal to the total number of protons and neutrons in the nucleus of an atom
positively charged particle found in the nucleus of an atom

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macromolecule made up of amino acids
reaction- a reaction that absorbs energy
symbol one or two-letter abbreviation for a chemical element name
compound made up of carbon, hydrogen, and oxygen atoms type of nutrient that is the major source of energy for the body
a combination of 2 or more elements connected by bonds
reactant of an enzyme-catalyzed reaction
biological catalysts
bond type of bond between atoms in which the electrons are shared
energy- energy that is needed to get a reaction started
substance formed as a result of a chemical reaction
particle found in the nucleus that has no charge
number the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table (also equals the number of electrons in an element)
substance that speeds up the rate of a chemical reaction
elements or compounds that enter into a chemical reaction

27 Clues: biological catalysts • the basic unit of matter • macromolecule made up of amino acids • reaction- a reaction that absorbs energy • reactant of an enzyme-catalyzed reaction • reaction- a reaction that releases energy • small chemical unit that makes up a polymer • a large organic molecule made up of many atoms • particle found in the nucleus that has no charge • ...

Chapter 7- Chemical Reactions 2021-12-18

Chapter 7- Chemical Reactions crossword puzzle

Across

a substance that undergoes change in a chemical reaction
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
new substances formed as a result of a chemical reaction
an amount of a substance that contains approximately 6.02 x 10^23 particles of the substance
a chemical reaction in which two or more substances react to form a single substance
a representation of a chemical reaction in which the reactants and products are expressed as a formula
a chemical reaction that absorbs energy from its surroundings

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a chemical reaction in which two compounds exchange positive ions and form two new compounds
a representation of a chemical reaction in which the reactants and products are expressed as formulas
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction in which a compound breaks down into two or more simpler substances
the mass of one mole of a substance
a chemical reaction that releases energy to its surroundings

13 Clues: the mass of one mole of a substance • a substance that undergoes change in a chemical reaction • new substances formed as a result of a chemical reaction • a chemical reaction that releases energy to its surroundings • a chemical reaction that absorbs energy from its surroundings • ...

CoronaVirus 2020-05-20

Across

shows the symbols of the elements in the compound and the ratio of the elements to one another.
conducts electricity and heat relatively well and are typically malleable or ductile.
the state or process of rotting; decay.
the production of chemical compounds by reaction from simpler materials.
a substance that takes part in and undergoes change during a reaction.
substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape and no fixed volume .
an element or substance that is not a metal.
is a chemical reaction in which an acid and a base react quantitatively with each other.
firm and stable in shape; not liquid or fluid.
substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
consisting of one atom.
consisting of two atoms.
a substance produced during a natural, chemical, or manufacturing process.
replacement, is a type of chemical reaction that occurs when two reactants exchange cations or anions to yield two new products.
the symbolic representation of a chemical reaction in the form of symbols and formulae
of a letter figure or symbol) written or printed below the line.
is a chemical reaction in which one element replaces an/other element in a compound.
a number in front of a chemical.

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a process that involves rearrangement of the molecular or ionic structure of a substance.
is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products.
states that the total number of atoms of reactants must equal the number of atoms of products.
the process of burning something.
is a chemical reaction expressed in words rather than chemical formulas.
is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.
formed by the electrostatic attraction of oppositely charged ions.
is a charged chemical composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit.
relating to or consisting of molecules.
of or containing water, typically as a solvent or medium.
reaction where the reactants and products react together to give the reactants back.
a substance that flows freely but is of constant volume having a consistency like that of water or oil.
a thing that is composed of two or more separate elements; a mixture.
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

32 Clues: consisting of one atom. • consisting of two atoms. • a number in front of a chemical. • the process of burning something. • the state or process of rotting; decay. • relating to or consisting of molecules. • an element or substance that is not a metal. • firm and stable in shape; not liquid or fluid. • of or containing water, typically as a solvent or medium. • ...

Biomolecules and Enzymes 2021-03-24

Biomolecules and Enzymes crossword puzzle

Across

monomer of proteins
breaks down sugars
where the enzymes will hold the reacting chemicals
for an enzyme to go through a chemical reaction it needs a ______ substrate
makes the cell membrane
what is called when the chemical reaction works the best at a certain temperature?
storage of genetic information
the reactants of an enzyme
when atoms react with each other
energy storage
quick energy source

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what the energy is called for the chemical reaction
monomer of nucleic acid
what are the finishing results of a chemical reaction called?
monomers of lipids
smaller subunits of polymers
long chains of macromolecules
what is it called when enzymes speed up reactions?
what chemical reactions require to start
breaks down food
monomer of carbohydrates
what information does DNA code for?
makes structure and enzymes
the process of an enzyme changing its shape
make sugar for food

25 Clues: energy storage • breaks down food • monomers of lipids • breaks down sugars • monomer of proteins • make sugar for food • quick energy source • monomer of nucleic acid • makes the cell membrane • monomer of carbohydrates • the reactants of an enzyme • makes structure and enzymes • smaller subunits of polymers • long chains of macromolecules • storage of genetic information • ...

unit 3 Vocabulary 2024-03-12

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Number the number of particles in 1 mole (or mol) of a substance.
composition tells you by mass what percent of each element is present in a compound.
reaction a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
reaction the processes by which chemicals interact to form new chemicals with different compositions
formula a chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule.
equation the symbolic representation of a chemical reaction in the form of symbols and formula
of Conservation of Matter The amount of matter stays the same, even when matter changes form.
mass the mass of one mole of any substance.
the number that you multiply a variable by
a solid formed by a change in a solution, often due to a chemical reaction or change in temperature that decreases solubility of a solid.
replacement reaction a reaction in which one element is substituted for another element in a compound.

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any compound containing water in the form of H2O molecules, usually, but not always, with a definite content of water by weight.
reaction a chemical process in which two or more simple elements or compounds combine to form a more complex product.
any item or service you sell to serve a customer's need or want.
replacement reaction when parts of two ionic compounds are exchanged, making two new compounds.
formula a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
reaction a reaction in which a compound breaks down into two or more simpler substances.
ratio the ratio between the amounts in moles of any two compounds involved in a balanced chemical reaction.
The substances which participate in a chemical reaction
a unit of measurement that is the amount of a pure substance containing the same number of chemical units

20 Clues: the number that you multiply a variable by • The substances which participate in a chemical reaction • any item or service you sell to serve a customer's need or want. • mass the mass of one mole of any substance. • Number the number of particles in 1 mole (or mol) of a substance. • ...

Mole-Mass Relationship Crossword 2021-11-17

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formula, tells the number of each type of atom.
yield, the percent of the theoretical yield actually obtained from a chemical reaction.
if unknown pure compound can be _______, the masses of elements present can be determined.
a chemical equation tell how many molecules, and thus how many moles, of each reactants are needed and how many of each products are formed.
equation, an equation in which ions are explicitly shown.
reagent, is the reactant that runs out first.
yield, the amount of product actually formed in a reaction.
formula, represent real three-dimensional objects.
equation, expression in which symbols are used to represent a chemical reaction.
number, contains 6.022 x 1023 formula units.
weight, the sum of the atomic weights for all the atoms in the molecule or formula unit.

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to obtain the correct ratio of reactant molecules, the reactants must be ______
formula, the simplest whole-number ratio of moles of each element in the compound.
yield, the amount of product formed assuming complete reaction of the limiting reagent.
weight, the average mass of an element’s atoms.
substances that are present at the end of a chemical reaction.
formula, identifies the location of chemical bonds between the atoms of a molecule.
measure of the quantitative relationship between the products and reactants of a given chemical reaction.
chemical equations, indicate what is happening at the molecular level during a reaction.
a substance that enters into and is altered in the course of a chemical reaction.
to mass, conversion that is carried out using molas mass as a conversion factor.
ratios, coefficients can be put in the form of ______, which act as conversion factors when setting up factor-label calculations.
is the amount of a substance whose mass in grams is numerically equal to its molecular or formula weight.
mass, this serves as a conversion factor between numbers of moles and mass.
weight, is the average mass of a substance’s molecules.

The Reaction on the Storyboard: Vocabulary Assignment 2014-01-14

The Reaction on the Storyboard: Vocabulary Assignment crossword puzzle

Across

displacement reaction\ is characterized by one element being displaced from a compound by another element.
the increase in the rate of a chemical reaction due to the participation of a substance.
Reaction\ one of the most common types of chemical reactions.
a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.

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the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid.
this is used in math when you multiply.
Relating to, similar to, containing, or dissolved in water.
Reaction\ a major class of chemical reactions.
Equation\ this has reactants and products.
displacement reaction\ a type of reaction where part of of one reactant is replaced by part of another reactant.
Molecule\ are molecules composed of only two atoms, of either the same or different chemical elements.
of Conservation of Mass\ states that mass is neither created nor destroyed in any ordinary chemical reaction.
Reaction\ a type of chemical reaction in which two or more simple substances combine to form a more complex product.

13 Clues: this is used in math when you multiply. • Equation\ this has reactants and products. • Reaction\ a major class of chemical reactions. • Relating to, similar to, containing, or dissolved in water. • Reaction\ one of the most common types of chemical reactions. • the increase in the rate of a chemical reaction due to the participation of a substance. • ...

Chemical Reactions 2024-04-19

Across

process in which one or more substances are changed into new substances
chemical reaction in which one substance breaks down into two or more substances
chemical reaction in which two or more substances combine to form a different substance
the gain of electrons by the atoms of a substance in a chemical reaction
chemical reaction that releases some form of energy, such as light or thermal energy
substance that speeds up a chemical reaction without being permanently changed itself
in a chemical reaction, the substance that reacts

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chemical reaction that requires energy input in the form of light, thermal energy or electricity in order to proceed
number in a chemical equation that represents the number of units of each substance taking part in a chemical reaction
chemical reaction in which energy is primarily given off in the form of thermal energy
in a chemical reaction, the new substance or substances formed
chemical reaction that requires thermal energy in order to proceed

12 Clues: in a chemical reaction, the substance that reacts • in a chemical reaction, the new substance or substances formed • chemical reaction that requires thermal energy in order to proceed • process in which one or more substances are changed into new substances • the gain of electrons by the atoms of a substance in a chemical reaction • ...

Chemistry 2015-06-15

Across

displacement- the chemical reactions in which one component each of both the reacting molecules is exchanged to form the products
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.
equation- An expression of equality between two formulas in mathematics
of conservation mass- the atoms of an object cannot be created or destroyed, but can be moved around and be changed into different particles.
a chemical reaction in which an acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in solution.
scale- is a measure of how acidic or basic a substance is
Chemical Equation- represents a chemical reaction using coefficients (numbers in front of reactants and products) that tell how much of the reactants are used and how much of the products are made
displacement reaction- A single-displacement reaction, also named single-replacement reaction, is a type of oxidation-reduction chemical reaction when an element or ion moves out of one compound and into another - that is, one element is replaced by another in a compound.
a compound that tastes sour, corrodes metals and tissue, and turns blue litmus paper red.

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make (a liquid) thinner or weaker by adding water or another solvent to it.
any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue)
reaction- analysis or breakdown is the separation of a chemical compound into elements or simpler compounds. It is sometimes defined as the exact opposite of a chemical synthesis.
reaction- is a reaction where two or more elements or compounds
indicator- a substance that changes colour when added to an acid or base
non-toxic base that is used to neutralize stomach acid; relieves the pain of excess stomach acid
reactant-They are the things that are present at the starting point. By convention, the chemical symbols for the reactants are written on the left hand side of the chemical reaction equation. The products are the substances that are formed during the chemical change
formula- a set of chemical symbols showing the elements present in a compound and their relative proportions, and in some cases the structure of the compound.
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

18 Clues: scale- is a measure of how acidic or basic a substance is • reaction- is a reaction where two or more elements or compounds • equation- An expression of equality between two formulas in mathematics • indicator- a substance that changes colour when added to an acid or base • make (a liquid) thinner or weaker by adding water or another solvent to it. • ...

Stoichiometry Terms 2017-02-09

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this reactant is not fully consumed in a chemical reaction
a mass unit
His number is 6.02x10^23 molecules
roman numerals represent a transition metals ___________.
the number that goes before the formulas in a balanced chemical equation
the mathematical process of determining amounts of products or reactants needed in a chemical reaction
this increases the rate of a reaction
the total mass of all the atoms in a compound (no space between words)

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this property is always conserved in a chemical reaction
the number(s) in a chemical formula that represent the number of individual atoms present
___________ analysis
you must use this to convert from one substance to another(no space between words)
the calculated yield
the amount of product produced when performing a reaction in the lab
this reactant determine the amount that can be produced in a chemical reaction
Another name for a mole ratio is a mole ______.

16 Clues: a mass unit • ___________ analysis • the calculated yield • His number is 6.02x10^23 molecules • this increases the rate of a reaction • Another name for a mole ratio is a mole ______. • this property is always conserved in a chemical reaction • roman numerals represent a transition metals ___________. • this reactant is not fully consumed in a chemical reaction • ...

Chemistry Unit Study Guide 2016-02-10

Chemistry Unit Study Guide crossword puzzle

Across

mix of nonmetals and metals
Columns of elements
Center of an atom
Has neutral charge
states mass can neither be created nor destroyed in a chemical reaction or physical change
reaction that occurs in which a layer of metal is bonded to the surface of another substance
Conductors of electricity, malleable, ductile
a combination of atoms bonded together
Material that cannot be broken down into a more fundamental substance
Chemical reaction that gives off energy
Has negative charge
Has positive charge

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Region of space around the nucleus of an atom where an electron is likely to be found
Mass of chemical element
Elements that come out of a reaction
Row of elements
Chemical reaction that absorbs enter
First person to draw periodic table
Element that lacks metallic attributes
Number of protons in atom
Outermost electron
All elements in far right Group
letter(s) that an element is paired with
Basic unit of a chemical element
elements that are put in a reaction
pure substance of two or more different kinds of atoms bonded together

26 Clues: Row of elements • Center of an atom • Has neutral charge • Outermost electron • Columns of elements • Has negative charge • Has positive charge • Mass of chemical element • Number of protons in atom • mix of nonmetals and metals • All elements in far right Group • Basic unit of a chemical element • First person to draw periodic table • elements that are put in a reaction • ...

combustion and chemical reaction 2024-02-13

combustion and chemical reaction crossword puzzle

Across

The chemical reaction between a fuel and oxygen.
The energy stored in the bonds of chemical compounds.
The process of burning a substance.
The reactants of a chemical reaction.
The heat energy released during a chemical reaction.
The products of a chemical reaction.
The colorless, odorless gas produced during combustion.
A substance that undergoes combustion.

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A substance that slows down or prevents a chemical reaction.
A compound containing hydrogen and carbon atoms, often found in fossil fuels.
The minimum amount of energy required to initiate a chemical reaction.
The substance that reacts with a fuel in combustion.
A substance that increases the rate of a chemical reaction without being consumed.

13 Clues: The process of burning a substance. • The products of a chemical reaction. • The reactants of a chemical reaction. • A substance that undergoes combustion. • The chemical reaction between a fuel and oxygen. • The heat energy released during a chemical reaction. • The substance that reacts with a fuel in combustion. • ...

DGS Yr7 Chemical Reactions 2023-02-20

DGS Yr7 Chemical Reactions crossword puzzle

Across

(3 words) the principle that in any chemical reaction the total mass of the reactants is equal to the total mass of the products
(2 words) a change in which the form of substances change but the composition remains the same - generally reversible
a chemcial reaction in which energy is transferred from the thermal store of the surroundings to the chemical store of the reactants and products
(2 words) a reaction in which atoms are rearranged to form new substances - generally irreversible
(2 words) variables that may assume any value in a range e.g. mass of students in a class
a chemcial reaction in which energy is transferred from the chemical store of the reactants and products to the thermal store of the surroundings
the substances that are formed in a chemical reaction
a chemical reaction in which compound breaks down into simpler compounds or elements
(2 words) fuels derived from the breakdown of living things over millions of years to form oil and natural gas

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(2 words) variables that occupy entirely separate categories e.g. types of fruit
(2 words) cannot be replaced once they have been used
the process whereby a substance burns
the starting substances in a chemical reaction
a chemical reaction in which a substance combine with oxygen
a substance that speeds up a chemical reaction but is not used up in the reaction
a substance that burns to transfer energy by heating in a useful way

16 Clues: the process whereby a substance burns • the starting substances in a chemical reaction • (2 words) cannot be replaced once they have been used • the substances that are formed in a chemical reaction • a chemical reaction in which a substance combine with oxygen • a substance that burns to transfer energy by heating in a useful way • ...

Chaps 6-7 Vocab 2024-04-02

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notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
the force that holds cations and anions together
a chemical reaction in which one element takes the place of another element in a compound
a chemical reaction in which two or more substances react to form a single substance
new substances formed as a result of a chemical reaction
a chemical bond in which two atoms share a pair of valence electrons
an ion with a negative charge
the attraction between a metal cation and the shared electrons that surround it
a substance that undergoes change in a chemical reaction

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a chemical reaction in which a compound breaks down into two or more simpler substances
a representation of a chemical reaction in which the reactants and products are expressed as formulas
a neutral group of atoms that are joined together by one or more covalent bonds
an ion with a positive charge
the force that holds atoms or ions together as a unit
a diagram of an atom, ion or molecule in which each dot represents a valence electron
numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
a chemical reaction in which two compounds exchange positive ions and form new compounds
a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
an atom or group of atoms that has a positive or negative charge

19 Clues: an ion with a positive charge • an ion with a negative charge • the force that holds cations and anions together • the force that holds atoms or ions together as a unit • new substances formed as a result of a chemical reaction • a substance that undergoes change in a chemical reaction • an atom or group of atoms that has a positive or negative charge • ...

Unit 8: Nomenclature Review 2024-05-13

Unit 8: Nomenclature Review crossword puzzle

Across

the ending substances in a chemical reaction
a reaction in which 1 substance breaks down into 2 or more products
a solid formed in an aqueous reaction
a reaction in which both reactants are dissociated in water, and one of the products must be a precipitate, gas, or water (2 words)
when a substance can be dissolved in something else
an equation that shows only the species that are involved in the aqueous reaction (2 words)
a method of representing chemical reactions using arrows, chemical formulas, and coefficients (2 words)
a reaction in which 2 substances combine to create 1 product

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a reaction that consumes oxygen gas and produces heat and light
species in an aqueous reaction that do not participate in the actual reaction (2 words)
the solvent in aqueous solutions
a reaction in which 2 ionic compounds react by swapping cations (2 words)
the substance that does the dissolving in a solution
a process by which the atoms of one or more substances rearrange, form new bonds, and become different substances (2 words)
elements that will bond with themselves in pairs in their pure state
the starting substances in a chemical reaction
a reaction in which a pure element reacts with a compound (2 words)
substances that are able to dissolve or dissociate in water
the substance that is dissolved in a solution

19 Clues: the solvent in aqueous solutions • a solid formed in an aqueous reaction • the ending substances in a chemical reaction • the substance that is dissolved in a solution • the starting substances in a chemical reaction • when a substance can be dissolved in something else • the substance that does the dissolving in a solution • ...

Jack Schwab-Ch13 crossword 2016-10-11

Jack Schwab-Ch13 crossword crossword puzzle

Across

one half of an oxidation-reduction reaction, represented by an equation showing electrons as either reactants or products.
Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration.
The measurement of the acidity of a solution.
A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right,
The minimum energy in order for a chemical reaction to proceed.
A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.

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The reacting substances in a chemical reaction
Description of a chemical reaction in which there is a net release of energy.
The new materials formed in a chemical reaction.
Matter is neither created nor destroyed during a chemical reaction.
Description of a chemical reaction in which there is a net absorption of energy.
A reaction between an acid and a base.
The process by which a reactant loses one or more electrons.
Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.
Description of a solution in which the hydroxide ion concentration is higher than they hydronium ion concentration.

15 Clues: A reaction between an acid and a base. • The measurement of the acidity of a solution. • The reacting substances in a chemical reaction • The new materials formed in a chemical reaction. • The process by which a reactant loses one or more electrons. • The minimum energy in order for a chemical reaction to proceed. • ...

Claire Y 2024-05-15

Across

the smallest unit of an element
a link between atoms in molecules or compounds
the transfer of thermal energy
the ability to do work or cause change
the substances that are formed during a chemical reaction; in a chemical reaction the arrows point toward the product
a science that deals with the composition, structure, and properties of substances
a chemical reaction that absorbs heat energy
it takes up space and has mass
a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process

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a combination of substances that can be physically separated from one another
two or one atoms joined together
chemical reaction that gives off heat energy
a measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees
the substances present before a chemical reaction occurs
the amount of space that an object occupies
an action taken in response to something
the ability of molecules of the same substance to stick together

17 Clues: the transfer of thermal energy • it takes up space and has mass • the smallest unit of an element • two or one atoms joined together • the ability to do work or cause change • an action taken in response to something • the amount of space that an object occupies • chemical reaction that gives off heat energy • a chemical reaction that absorbs heat energy • ...

OPTIONAL BONUS POINT OPPORTUNITY FOR U5S1 KINETICS & HESS'S LAW 2022-02-04

OPTIONAL BONUS POINT OPPORTUNITY FOR U5S1 KINETICS & HESS'S LAW crossword puzzle

Across

____________ is the movement of one or more components of a mixture to improve contact.
______________ is the reaction that goes to the right.
___________ is a molecular entity that is formed from the reactants and reacts further to give the directly observed products of a chemical reaction.
___________ the minimum quantity of energy needed in order to start a specified reaction.
__________ is the speed at which a chemical reaction takes place.
__________ a statement that says the heat change in a chemical reaction is the same regardless of the number of stages in which the reaction is effected.
________________ is a reaction for which the overall standard enthalpy change ΔH⚬ is negative.
_______________ is the reaction that goes to the left.

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____________ is the area of the chemical substances used in a chemical reaction.
________________ is any process with an increase in the enthalpy H of the system.
_______ a substance that increases the rate of a chemical reaction by adding a substance.
___________________ these diagrams are used to relate the free energy changes that occur during the progress of chemical processes to the rate and equilibrium constants of the process.
________ a thermodynamic quantity equivalent to the total heat content of a system.
An ___________ is a molecule that binds to an enzyme and decreases its activity.
_________________ is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.
____________ the average kinetic energy of all the atoms or molecules of that substance.

16 Clues: ______________ is the reaction that goes to the right. • _______________ is the reaction that goes to the left. • __________ is the speed at which a chemical reaction takes place. • ____________ is the area of the chemical substances used in a chemical reaction. • An ___________ is a molecule that binds to an enzyme and decreases its activity. • ...

Science 2022-03-18

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does not allow matter to enter or leave, but does allow energy to enter or leave.
is any process with an increase in the enthalpy H of the system.
is the process or effect of simplifying a single chemical entity into two or more fragments
a chemical reaction between substances
the process of increasing the rate of a chemical reaction
a substance that takes part in and undergoes change during a reaction.
property that is measurable, whose value describes a state of a physical system.
system that can freely exchange matter and energy with its surroundings.
when a substance combines with another to form a new substance, called chemical synthesis
A number placed in front of a formula to balance a chemical equation.
material that can be made to react with other substances
the abundance of a constituent divided by the total volume of a mixture.
he process of transforming a dissolved substance into an insoluble solid
affecting the form of a chemical substance, but not its chemical composition

Down

any substance that has mass and takes up space by having volume.
the symbolic representation of a chemical reaction in the form of symbols and formulae
the artificial execution of chemical reactions to obtain one or several products.
a molecule that binds to an enzyme and decreases its activity.
chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products
formed from chemical reactions.
the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
scientific study of the properties and behavior of matter
any system closed to all transfers of matter and energy, the mass of the system must remain constant over time,
is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative.
is a biological catalyst and is almost always a protein

26 Clues: formed from chemical reactions. • a chemical reaction between substances • is a biological catalyst and is almost always a protein • material that can be made to react with other substances • the process of increasing the rate of a chemical reaction • scientific study of the properties and behavior of matter • ...

Biology 2012-11-09

Across

the end of a reaction
sugars starches
A molecule that can combine with others to form a polymer
single neulcaic acid form
the thing that starts a chemical reaction
the energy needed to activate a chemical reaction
fats

Down

A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.
chain, longer than ones
a substance changes chemically
a single sugar
dna
causes a reaction
building blocks
a block from protein
a substance that forms things

16 Clues: dna • fats • a single sugar • sugars starches • building blocks • causes a reaction • a block from protein • the end of a reaction • chain, longer than ones • single neulcaic acid form • a substance that forms things • a substance changes chemically • the thing that starts a chemical reaction • the energy needed to activate a chemical reaction • ...

Biology 2012-11-09

Across

the end of a reaction
sugars starches
A molecule that can combine with others to form a polymer
single neulcaic acid form
the thing that starts a chemical reaction
the energy needed to activate a chemical reaction
fats

Down

A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.
chain, longer than ones
a substance changes chemically
a single sugar
dna
causes a reaction
building blocks
a block from protein
a substance that forms things

Science Ten 2011-12-13

Across

a negatively charged ion, the result of gaining one or more electrons
a positively charged ion, the result of losing one or more electrons
energy
a PH of 7
when organic molecules burn
a solid substance that forms when two liquids are mixed
are negative
substances that form n a chemical reaction
can be divided into 2 groups
a substance that can accept hydrogen ions

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a chemical substance that neutralizes alkis
provide evidence that a chemical reaction might have taken place
a change when a substance changes to a new substance
energy is absorbed from the surroundings
have 2 or more different elements in a proportion
cannot be created or destroyed
a change where the properties do not change
explaining an observation in terms of previous experience
found in the periodic table
substances that undergo change in a chemical reaction
appear to be one substance but is a combination
is lost or gained in every chemical reaction

22 Clues: energy • a PH of 7 • are negative • when organic molecules burn • found in the periodic table • can be divided into 2 groups • cannot be created or destroyed • energy is absorbed from the surroundings • a substance that can accept hydrogen ions • substances that form n a chemical reaction • a chemical substance that neutralizes alkis • a change where the properties do not change • ...

chemical reactions 2024-11-18

Across

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
The amount of a substance that contains 6.02 x 1023 particles of that substance
Loss of Electrons
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
of reaction: The speed at which reactants are converted in products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Is a substance that is formed as the result of a chemical reaction.

Down

Gain of electrons
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
reaction: A chemical reaction that releases energy in the form of light or heat
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner

18 Clues: Gain of electrons • Loss of Electrons • Mass: Mass in grams of one mole of a substance • of reaction: The speed at which reactants are converted in products • Is a substance that is formed as the result of a chemical reaction. • A substance that takes part in and undergoes change during a reaction • ...

reactions of matter 2024-11-04

Across

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
The amount of a substance that contains 6.02 x 1023 particles of that substance
Loss of Electrons
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
of reaction: The speed at which reactants are converted in products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Is a substance that is formed as the result of a chemical reaction.

Down

Gain of electrons
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
reaction: A chemical reaction that releases energy in the form of light or heat
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner

ch. 2 vocab. #27-50 2022-09-27

Across

substances changed during a chemical reaction
has ring structure
energy that will break bonds between atoms
release energy
reactions changes substances by breaking bonds
made of monomers called amino acids
substances made by chemical reactions
speeds up reaction, lowers activation energy
energy absorbed
stores information
acids contain C,H,O,N, and sometimes S

Down

made of C,H,O, sugar & starch
subunit in complete molecule
reactants/Products are made at same rate
bond share a pair of electron
acid polymer made of monomers called nucleotides
catalysts for chemical reaction
fats, oils, & cholesterol
most abundant organic molecule on earth
reactants that enzymes act on
simple sugars
helps build proteins
energy energy needed to start reaction

23 Clues: simple sugars • release energy • energy absorbed • has ring structure • stores information • helps build proteins • fats, oils, & cholesterol • subunit in complete molecule • made of C,H,O, sugar & starch • bond share a pair of electron • reactants that enzymes act on • catalysts for chemical reaction • made of monomers called amino acids • substances made by chemical reactions • ...

GP3 Exam 1 Crossword 2017-01-24

Across

A reaction which absorbs energy is called _____________.
When two or more simple substances combine to for a complex substance.
A substance that speeds up the rate of reaction without getting involved in the reaction itself.
The amount of energy required for colliding molecules to break their bonds and react is called the _____________ energy.
This factor increases the rate of reaction by increasing the number of molecules in a given volume.
This factor increases the rate of reaction by increasing the kinetic energy of the colliding molecules.
The number in a chemical equation that describes how many molecules of a reactant/product there are
_____________ theory explains that for molecules to react they need to collide with the correct orientation and sufficient energy.
A _________ replacement reaction is when two ionic compounds switch ions with each other.

Down

The Law of ___________ of Mass states that the mass of the reactants is equal to the mass of products in a chemical reaction.
An expression that uses symbols and formulas to represent a chemical reaction is called a chemical ______.
A ________ replacement reaction is when a free element replaces one of the elements in a compound
A reaction which releases energy is called ___________.
When a complex substance breaks down into two or more simpler substances
If you increase the ______ area of a reactant by grinding it into a powder, it will react faster.
when a substance acts to form new substances,this is called a chemical ____________.
The substances that result from a reaction
When a chemical equation has the same number of atoms on both sides it is called ____________.

18 Clues: The substances that result from a reaction • A reaction which releases energy is called ___________. • A reaction which absorbs energy is called _____________. • When two or more simple substances combine to for a complex substance. • When a complex substance breaks down into two or more simpler substances • ...

7.1-7.2 Crossword 2025-01-16

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separates reactants and products side of chemical reaction
_________ replacement reactions involve swapping of atoms between 2 compounds
AB ---> A + B is the generic formula for ______ reactions
_________ replacement reactions involve one element replacing another
chemical at the beginning of a chemical reaction
K + NaBr ---> KBr + Na represents a _________ replacement reaction

Down

type of reaction where substance reacts with oxygen gas to make water and carbon dioxide
chemical made in a chemical reaction
A + B ---> AB is the generic formula for ______ reactions
MgO + CaS ---> MgS + CaO represents a _________ replacement reaction
number in front of the chemical, in the equation
(s) in chemical equation
(l) in chemical equation
(aq) in chemical equation
(g) in chemical equation

15 Clues: (s) in chemical equation • (l) in chemical equation • (g) in chemical equation • (aq) in chemical equation • chemical made in a chemical reaction • number in front of the chemical, in the equation • chemical at the beginning of a chemical reaction • A + B ---> AB is the generic formula for ______ reactions • AB ---> A + B is the generic formula for ______ reactions • ...

Unit 3 Chemical Reactions 2023-04-26

Unit 3 Chemical Reactions crossword puzzle

Across

substances present after chemical reaction
basic unit of matter
change that results in new substance
characteristics
tells number of atoms of an element
only factor that can be changed in chem equation
pure substance with only one type of atom
amount of space object occupies
when a chemical change occurs, properties __
pure substance with more than one type of atom

Down

change that does not result in new substance
substances present before chemical reaction
releases heat; temp increases
amount of matter in an object
evidence of gas production
takes up space and has mass
Law of __ of mass; total amount of matter is constant
absorbs heat; temp decreases
a chemical ___ represents a chemical reaction
represents yields/produces

20 Clues: characteristics • basic unit of matter • evidence of gas production • represents yields/produces • takes up space and has mass • absorbs heat; temp decreases • releases heat; temp increases • amount of matter in an object • amount of space object occupies • tells number of atoms of an element • change that results in new substance • pure substance with only one type of atom • ...

Y9 Chemistry Crossword 2022-05-24

Across

the large numbers in front of molecules in a chemical equation.
type of change where a new substance has formed.
when the correct number of atoms are present on both sides of the equation, it is _.
the solid that can form during a chemical reaction.
when energy is _, the reaction may feel cold.
the small numbers next to elemental symbols in a chemical formula.

Down

the new substances formed in a reaction.
type of reaction when a chemical reaction absorbs heat from the surroundings, feeling colder.
a rapid change in _ can indicate a chemical change.
simple description of what is happening during a chemical reaction.
substances that react to form new substances.
type of reaction when a chemical reaction releases heat to the surroundings, feeling warmer.
indicate a gas has formed as part of the reaction.

13 Clues: the new substances formed in a reaction. • substances that react to form new substances. • when energy is _, the reaction may feel cold. • type of change where a new substance has formed. • indicate a gas has formed as part of the reaction. • a rapid change in _ can indicate a chemical change. • the solid that can form during a chemical reaction. • ...

Chemical Reactions 2023-09-12

Across

A chemical reaction that produces heat and light.
Reaction A process where substances change into new substances.
The gradual wearing away of a material due to a chemical reaction.
Change A change in matter that does not create new substances.
A reaction between an acid and a base to produce water and salt.
A solid that forms during a chemical reaction.
of Mass The principle that matter is neither created nor destroyed in a chemical reaction.
A substance with a pH greater than 7 that can be slippery.
Change A change that results in the formation of new substances.

Down

The measure of how hot or cold something is.
A substance that speeds up a chemical reaction.
The substances that go into a chemical reaction.
The new substances that are formed in a chemical reaction.
Equation A way to represent a chemical reaction using symbols and formulas.
A substance with a pH less than 7 that can be corrosive.

15 Clues: The measure of how hot or cold something is. • A solid that forms during a chemical reaction. • A substance that speeds up a chemical reaction. • The substances that go into a chemical reaction. • A chemical reaction that produces heat and light. • A substance with a pH less than 7 that can be corrosive. • The new substances that are formed in a chemical reaction. • ...

Unit 5 HC crossword 2023-11-03

Across

the number placed below the element after the symbol
when the amount of matter stays the same
production of chemical compounds by reaction from simpler materials
a number placed in front of a chemical symbol or formula
a way to represent a chemical reaction
substances initially present in a chemical reaction
equal number of atoms of each element on both side of the equation

Down

one or more substances are converted to one or more different substances
the simple form of a chemical reaction
points in the direction of the products
ions that have already been bonded
systematic names for chemical compounds
new material formed from the chemical reaction
NaCl
charge can be positive or negative, determined by their column

15 Clues: NaCl • ions that have already been bonded • the simple form of a chemical reaction • a way to represent a chemical reaction • points in the direction of the products • systematic names for chemical compounds • when the amount of matter stays the same • new material formed from the chemical reaction • substances initially present in a chemical reaction • ...

Chemical reactions 2024-11-01

Across

A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
Loss of Electrons
reaction: A chemical reaction that releases energy in the form of light or heat
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow

Down

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
Is a substance that is formed as the result of a chemical reaction.
The amount of a substance that contains 6.02 x 1023 particles of that substance
of reaction: The speed at which reactants are converted in products
Gain of electrons
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.

18 Clues: Loss of Electrons • Gain of electrons • Mass: Mass in grams of one mole of a substance • Is a substance that is formed as the result of a chemical reaction. • of reaction: The speed at which reactants are converted in products • A substance that takes part in and undergoes change during a reaction • ...

LAYLA crosss woed 2024-11-06

Across

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
The amount of a substance that contains 6.02 x 1023 particles of that substance
Loss of Electrons
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
of reaction: The speed at which reactants are converted in products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Is a substance that is formed as the result of a chemical reaction.

Down

Gain of electrons
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
reaction: A chemical reaction that releases energy in the form of light or heat
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner

Stoichiometry Crossword 2022-01-23

Stoichiometry Crossword crossword puzzle

Across

a substance that undergoes a distinct observable change when conditions in its solution change
flat bottom, conical body and a cylindrical neck, also known as a titration flask or a conical flask
mass the mass of one mole of a substance in units of grams per mole
measure of how much of a given substance is mixed with another substance
reaction which one element is swapped for another element in a compound.
used to transfer a measured volume of liquid
reactant whose entities are present in surplus amounts, so some remain after the reaction ends.
equation leaving out any entity that do not change the reaction
reaction which the negative ions of two ionic compounds exchange places to form two new compounds within a reaction
reactant whose entries are completely consumed in a reaction
any method used for determining the amount of chemical in a sample
A technological process of carefully adding a solution from a burette into measured, fixed volume of another solution until the reaction is judged to be complete
reaction

Down

ions that are present but do not take part in chemical change during reaction
determination of the chemical composition in a chemical sample
the amount of space that a substance or object occupies
reaction that contains balanced reactants and products on both sides of equation
actual/Theoretical ×100
granulated glass tube with a tap known for delivering volumes of liquid usually in Titrations
base unit for chemical amounts, or amount of substance
A measure of the amount of matter an object contains
This is a measure of the quantity of moles of a product formed in relation to the reaction that has occured
invented Stoichiometry
The amount or number of an immaterial thing not usually estimated by spatial measurements.
a substance produced during a chemical, natural, or manufacturing process

25 Clues: reaction • invented Stoichiometry • actual/Theoretical ×100 • used to transfer a measured volume of liquid • A measure of the amount of matter an object contains • base unit for chemical amounts, or amount of substance • the amount of space that a substance or object occupies • reactant whose entries are completely consumed in a reaction • ...

Sience Unit 4 Vocab 2023-10-09

Across

basic sub units
proteins that are being sped up during a biochemical reaction by lowering activation energy
absorb energy
substance being made by a chemical reaction
substance changed during a chemical reaction
Building larger molecules from smaller ones
the amount of energy needed to make a chemical reaction to start
breaks down large compounds into simple compounds

Down

Large complex structures made of monomers.
enzymes getting derom and looses shape.
reaction building a polymer by linking monomers
release energy
where the substrate bonds
Reaction breaking and forming bonds from different substances
breaking big polymers into smaller monomers.

15 Clues: absorb energy • release energy • basic sub units • where the substrate bonds • enzymes getting derom and looses shape. • Large complex structures made of monomers. • substance being made by a chemical reaction • Building larger molecules from smaller ones • substance changed during a chemical reaction • breaking big polymers into smaller monomers. • ...

Reaction Rate 2020-01-17

Across

the physical force exerted on an object
the assembly of atoms which corresponds to an arbitrary infinitesimally
outer shell electron associated with an atom
the process of burning something
the production of chemical compounds by reaction from simpler materials
the degree of heat present in a substance or object
a principle stating that if a constraint is applied to a system
the process of rotting or decaying
a reaction where one element is substituted for another element in a compound
the minimum quantity of energy which the reacting must possess in order to undergo a specified reaction
a chemical property reffering to the ability for a given substance to dissolve in a solvent

Down

the outside or uppermost layer of something
a substance that undergoes change during a reaction
a chemical reaction where the reactants form products that react to give the reactants back
the amount of a given substance contained within a solution
a substance that slows down or prevents a particular chemical reaaction
a solution that can resist pH change upon the addition of an acidic or basic components
a substance that increases the rate of a chemical reaction without any permanent chemical change
considered to be of a certain quality, standard, or rank
the process or result of oxidizing or being oxidized
a thermodynamic quantity equivalent to the heat content of a system
a thermodynamic function that describes the randomness and disorder of molecules
a substance formed as the result of a chemical reaction

23 Clues: the process of burning something • the process of rotting or decaying • the physical force exerted on an object • the outside or uppermost layer of something • outer shell electron associated with an atom • a substance that undergoes change during a reaction • the degree of heat present in a substance or object • the process or result of oxidizing or being oxidized • ...

chapter 6 crossword 2013-11-20

Across

a reaction in which a single compound breaks down to form two or more simple substances
any chemical change in which one species is oxidized and another species is reduced
a chemical reaction that requires heat
substance that forms in a chemical reaction
an organic group that has one or more electrons available for bonding
a reaction in which two or more substances combine to form a new compound
a representation of a chemical reaction that uses symbols to show the relationship between the reactants and he products
a reaction in which a gas, a solid, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds

Down

a chemical reaction in which heat is released to the surroundings
energy released when a chemical compound reacts to produce new compounds
a reaction in which one element or radical takes the place of another element or radical in a compound
the oxidation reaction of an organic compound, in which heat is released
substance or molecule that participates in a chemical reaction
ratio between the amounts in moles of any two compounds involved in a chemical reaction

14 Clues: a chemical reaction that requires heat • substance that forms in a chemical reaction • substance or molecule that participates in a chemical reaction • a chemical reaction in which heat is released to the surroundings • an organic group that has one or more electrons available for bonding • energy released when a chemical compound reacts to produce new compounds • ...

Josh Nagao 2017-02-27

Across

a quantity obtained by multiplying quantities
Consisting of two atoms
number or symbol multiplied with a variable or an unknown quantity in an algebraic term
the process or result of oxidizing or being oxidized
chemical decomposition produced by passing an electric current through a liquid or solution containing ions. 2
Replacement type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound
Compound relating to, composed of, or involving two things

Down

produce or provide
cause to happen suddenly, unexpectedly, or prematurely.
Replacement type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
Equation the symbolic representation of a chemical reaction in the form of symbols and formula
combination or composition, in particular
combination or composition, in particular.
substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
half-reaction in which a chemical species decreases its oxidation number
containing water, typically as a solvent or medium.
substance that takes part in a change during a reaction.

17 Clues: produce or provide • Consisting of two atoms • combination or composition, in particular • combination or composition, in particular. • a quantity obtained by multiplying quantities • containing water, typically as a solvent or medium. • the process or result of oxidizing or being oxidized • cause to happen suddenly, unexpectedly, or prematurely. • ...

chemical reactions 2021-12-02

Across

The formula for hydrochloric acid
Basic unit of matter
A single kind of matter that is pure and has a specific set of properties.
(of a chemical reaction or compound) occurring or formed with absorption of heat
The reactants in a photosynthesis reaction.
any substance that has a definite composition
Chemical formula for glucose.
A substance that decreases the hydrogen ion concentration in a solution.

Down

A substance produced in a chemical reaction
A chemical substance that is present at the start of a chemical reaction
the process by which one or more substances change to produce one or more different substances
A group of atoms bonded together
Chemical formula for sodium hydroxide
change A change in matter that produces one or more new substances
Chemical Reaction in which energy is primarily given off in the form of heat

15 Clues: Basic unit of matter • Chemical formula for glucose. • A group of atoms bonded together • The formula for hydrochloric acid • Chemical formula for sodium hydroxide • A substance produced in a chemical reaction • The reactants in a photosynthesis reaction. • any substance that has a definite composition • change A change in matter that produces one or more new substances • ...

Chemical Equations and Reactions Crossword Puzzle 2023-11-20

Chemical Equations and Reactions Crossword Puzzle crossword puzzle

Across

big number in front of compounds in a chemical equation
the letters that make up the symbols for elements, some include subscripts
two or more substances react to form one product
an arrow in a chemical reaction can mean this
staring substance in a chemical reaction
solid, liquid, gas, aqueous
the opposite of synthesis, one reactant breaks down into 2 or more products
new substances formed in a chemical reaction
split elements on one side should be balance ______
when balancing equations the coefficients must be in the lowest, _____ form

Down

counting the number of atoms is called taking the ________
small number on the right of compounds
one element switches place with another element in this type of reaction
all ions in a compound switch places to make two new compounds
states that matter/mass cannot be created nor destroyed, only rearranged
when a chemical reaction occurs, these will be a sign
uses only words to represent reactants and products
this type of reaction always has water and carbon dioxide as products
can you change subscripts when balancing equations?
state of matter that means "dissolved in water"

20 Clues: solid, liquid, gas, aqueous • small number on the right of compounds • staring substance in a chemical reaction • new substances formed in a chemical reaction • an arrow in a chemical reaction can mean this • state of matter that means "dissolved in water" • two or more substances react to form one product • uses only words to represent reactants and products • ...

science crosswords 2024-01-10

Across

a number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction.
the ratio between the mass and the amount of substance of any sample of said compound.
a substance or compound added to a system to cause a chemical reaction
he symbolic representation of a chemical reaction in the form of symbols and chemical formulas.
the transfer of electrons between species in a chemical reaction, where there is a process of gaining electrons or a decrease in the oxidation state by an element.
the hypothetical charge of an atom if all of its bonds to other atoms were fully ionic
the process or effect of simplifying a single chemical entity into two or more fragments.

Down

a chemical reaction in which one element is replaced by another in a compound.
the species formed from chemical reactions.
a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
a high-temperature exothermic redox chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.
the processes by which chemicals interact to form new chemicals with different compositions.
the unit of meathe surement for amount of substance, a quantity proportional to the number of elementary entities of a substance.
the artificial execution of chemical reactions to obtain one or several products.

14 Clues: the species formed from chemical reactions. • a substance or compound added to a system to cause a chemical reaction • a chemical reaction in which one element is replaced by another in a compound. • the artificial execution of chemical reactions to obtain one or several products. • ...

Chemical Reactions 2021-03-31

Across

Large numbers in a chemical formula that get applied to all the elements in the formula
_____________ indicate the formation of a gas
A chemical _______________ occurs when elements rearrange to form new substances
The chemicals that are produced in a chemical reaction
A chemical reaction in which energy is absorbed. Photosynthesis is an example
Chemical reactions create new substances with new ________________
A chemical reaction in which energy is realized in the form of heat or light
An equation with the same number of atoms on the products side as the reactants side
The Law of Conservation of ______ says that matter cannot be created or destroyed

Down

A chemical reaction can be described by a chemical _____________ which shows the reactants and products
A solid formed by mixing two liquids together.
A substance that contains at least two different elements that are chemically bonded
Small numbers in a chemical formula that get applied to only one element (unless parenthesis are used)
The chemicals that go into a chemical reaction
A substance that contains only one kind of atom. Represented by chemical symbols found on the periodic table

15 Clues: _____________ indicate the formation of a gas • A solid formed by mixing two liquids together. • The chemicals that go into a chemical reaction • The chemicals that are produced in a chemical reaction • Chemical reactions create new substances with new ________________ • A chemical reaction in which energy is realized in the form of heat or light • ...

Exothermic and Endothermic reactions 2020-12-18

Exothermic and Endothermic reactions crossword puzzle

Across

During reaction of potassium chloride, what solvent in the reaction?
During reaction of sodium chloride, what solute in the reaction?
Symbolic representation of a chemical reaction in the form of symbols and formulae.
When potassium, water and hydrogen mixed together.
How much energy stores in the products?
The type of reaction in exothermic reaction.
What reaction when heat evolved?
A forming of water vapor in clouds.
A reaction between copper wire and sulfur.
What is the reaction in which energy is taken in?
How energy do the surroundings?

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Reaction between magnesium and chlorine gas.
When the surroundings vibrate more and more, what energy is given?
A substance combines with oxygen.
Weak organic acid that has molecular formula.
Matter that has properties and composition.
A reaction includes base and acid react to form water and salt.
Another process in endothermic reaction.
Including in exothermic reaction.
Energy that is released to the environment.
Reaction between carbon and oxygen.
Air like substances that can move around freely and flow.
Energy including in endothermic reaction.
Another term used for burning.
What are example of endergonic reaction?
When iron rusts, it combines with oxygen from the air.
In endothermic process, how surroundings become?
Related to the exothermic reaction, reaction between fuel and oxidant.
Chemical formula Na2SO3.
Energy is stored in the bonds of chemical compounds.

30 Clues: Chemical formula Na2SO3. • Another term used for burning. • How energy do the surroundings? • What reaction when heat evolved? • A substance combines with oxygen. • Including in exothermic reaction. • Reaction between carbon and oxygen. • A forming of water vapor in clouds. • How much energy stores in the products? • Another process in endothermic reaction. • ...

Biology Crossword Antonio Osejo 2025-02-05

Biology Crossword Antonio Osejo crossword puzzle

Across

Process where substances convert to different substances
Building block of proteins
Does not contain C-H bond
Starting material for a chemical reaction
Simple sugars
Store energy long term
Resist change
Substance which an enzyme can act
The minimum amount of energy required for a chemical reaction
pH less than 7

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It contains instructions on how to make proteins in the body
Smaller units linked together
Contain C-H bond
Formed from linked monosaccharides
Store and transmit genetic information
Quick source of energy
Substances formed as a result of a chemical reaction.
Smaller unit
Catalysts that speed up reactions
Speeds up a chemical reaction
Hold together amino acids
Used to form bones and muscles
Store and transmit genetic information
pH greater than 7

24 Clues: Smaller unit • Simple sugars • Resist change • pH less than 7 • Contain C-H bond • pH greater than 7 • Quick source of energy • Store energy long term • Does not contain C-H bond • Hold together amino acids • Building block of proteins • Smaller units linked together • Speeds up a chemical reaction • Used to form bones and muscles • Catalysts that speed up reactions • ...

Vocab Definition 2022-01-24

Across

A chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms.
a mixture that contains the relative amounts of reactants that match the numbers in the balanced equation
a chemical change that involves an exchange of positive ions between two compounds
making sure atoms on left = atoms on right. (following law of conservation of mass).
A starting material in a chemical reaction
a reaction in which two or more substances combine to form a new compound
The elements or compounds produced by a chemical reaction.
number of representative particles in a mole, 6.02 X 10^23
the calculation of the quantities of material consumed and produced in chemical reactions
the maximum amount of product that can be produced from a given amount of reactant
the SI base unit used to measure the amount of a substance
a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound

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the substance that controls the quantity of product that can form in a chemical reaction
the weighted average of the atomic masses of the naturally occurring isotopes of an element
the mass of one mole of a pure substance
the ratio of the actual yield to the theoretical yield expressed as a percent
a reaction in which a single compound breaks down to form two or more simpler substances
a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
the number of grams of solute in each 100 g of solution
a chemical formula showing the ratio of elements in a compound rather than the total number of atoms
an instrument used to determine the relative masses of atoms by the deflection of their ions on a magnetic field

22 Clues: the mass of one mole of a pure substance • A starting material in a chemical reaction • the number of grams of solute in each 100 g of solution • The elements or compounds produced by a chemical reaction. • number of representative particles in a mole, 6.02 X 10^23 • the SI base unit used to measure the amount of a substance • ...

5th six weeks review 2022-04-11

Across

a chemical reaction that uses pure elements to make compounds
a chemical reaction where two ionic substances swap anions (or cations)
a chemical reaction where an ionic substance has one of its ions replace with a new one
a mixture of metal and metal oxide that can undergo a VERY HOT single replacement reaction
a molecule that does not have a distinct positive or negative side
in a chemical formula, this number indicates how many of that atom or group are required to make that molecule
the electric charge on a proton
a chemical reaction that uses 1 compound to make two or more simpler substances
the chemicals you use in a reaction should weigh the same before and after
the electric charge on an electron
molecules with four regions of electron density around a central atom's valence shell have this geometry

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hydrogen peroxide slowly decomposes, we add this to make chemical reactions go faster
when a molecule has one or more bonds between hydrogen and oxygen, fluorine, or nitrogen it experiences this attractive force
these electrons are the ones involved in forming chemical bonds
this property determines if two atoms will form an ionic, polar or nonpolar covalent bond
molecules with four regions of electron density around a central atom's valence shell, but only two of them are bonds have this geometry
this process will decompose water into hydrogen and oxygen gases
the most electronegative atom
this type of chemical reaction generally uses oxygen and releases carbon dioxide
this type of reaction usually requires energy
required for combustion
one of many chemicals that is composed of *mostly* carbons and hydrogens, generally required for combustion
the only parts of a chemical equation you are allowed to change while balancing
a collection of atoms that are covalently bonded to one another
a molecule that has a slightly positive side and a slightly negative side
these elements react with water in a single-replacement reaction
in a chemical equation, this number goes in front of a chemical formula to indicate how many molecules are required to balance the equation

27 Clues: required for combustion • the most electronegative atom • the electric charge on a proton • the electric charge on an electron • this type of reaction usually requires energy • a chemical reaction that uses pure elements to make compounds • these electrons are the ones involved in forming chemical bonds • a collection of atoms that are covalently bonded to one another • ...

Chemistry Vocabulary 2025-01-21

Across

A substance that speeds up a chemical reaction by lowering the activation energy without being consumed in the process.
A symbolic representation of a chemical reaction, showing the reactants and products with their quantities.
The solid part of Earth, including rocks, soil, and fossil fuels.
A weak bond formed between the slightly positive hydrogen atom of one molecule and the slightly negative atom (like oxygen) of another molecule.
A principle stating that energy cannot be created or destroyed; it can only be transferred or transformed.
The part of Earth where life exists, including all living organisms.
A process in which reactants are transformed into products by breaking and forming chemical bonds.
A chemical reaction that absorbs energy, often resulting in a cooling effect. Example Photosynthesis.
The layer of gases surrounding Earth, including nitrogen, oxygen, and carbon dioxide.
The starting substances in a chemical reaction that undergo a change to form products.

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The minimum energy required to start a chemical reaction.
The movement of carbon through Earth’s four spheres (atmosphere, biosphere, hydrosphere, geosphere) via processes like photosynthesis, respiration, and combustion.
A chemical reaction that releases energy, usually as heat or light. Example Combustion.
A principle stating that mass cannot be created or destroyed in a chemical reaction; the mass of the reactants equals the mass of the products.
A force that holds atoms together in a molecule. Types include covalent, ionic, metallic, and hydrogen bonds.
All of Earth’s water, including oceans, lakes, rivers, and groundwater.
A molecule with an uneven distribution of charge, creating a positive side and a negative side. Water is a polar molecule.
A group of two or more atoms chemically bonded together. Molecules can consist of the same type of atom (e.g., O₂) or different types (e.g., H₂O).
The smallest unit of an element that retains its chemical properties. Atoms consist of a nucleus made of protons and neutrons, surrounded by electrons.
The substances formed as a result of a chemical reaction.

20 Clues: The minimum energy required to start a chemical reaction. • The substances formed as a result of a chemical reaction. • The solid part of Earth, including rocks, soil, and fossil fuels. • The part of Earth where life exists, including all living organisms. • All of Earth’s water, including oceans, lakes, rivers, and groundwater. • ...

Science 2024-11-08

Across

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
The amount of a substance that contains 6.02 x 1023 particles of that substance
Loss of Electrons
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
of reaction: The speed at which reactants are converted in products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Is a substance that is formed as the result of a chemical reaction.

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Gain of electrons
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
reaction: A chemical reaction that releases energy in the form of light or heat
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner

Chemical Reactions and Equations 2024-05-15

Chemical Reactions and Equations crossword puzzle

Across

Single compound breaks down into two or more simpler substances.
Process by which plants convert sunlight into chemical energy.
Two or more substances combine to form a single substance.
Gain of electrons or loss of oxygen.
Reaction involving both oxidation and reduction.
Reaction between an acid and a base forming salt and water.
Substance that undergoes change in a reaction.
Insoluble solid formed in a solution.
Process of using electricity to decompose a compound.
Loss of electrons or gain of oxygen.
Solution where water is the solvent.

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Gradual destruction of metals by chemical reactions with environmental elements.
Principle that mass is neither created nor destroyed in a reaction.
Reaction where a more reactive element replaces a less reactive element.
Substance that speeds up a reaction without being consumed.
Reaction of a substance with oxygen releasing energy.
Reaction releasing heat.
Rapid release of gas bubbles from a liquid.
Spoiling of fats and oils due to oxidation.
Representation of a chemical reaction using symbols and formulas.
Reaction absorbing heat.
Equation with equal numbers of each type of atom on both sides.
Substance formed as a result of a reaction.

23 Clues: Reaction releasing heat. • Reaction absorbing heat. • Gain of electrons or loss of oxygen. • Loss of electrons or gain of oxygen. • Solution where water is the solvent. • Insoluble solid formed in a solution. • Rapid release of gas bubbles from a liquid. • Spoiling of fats and oils due to oxidation. • Substance formed as a result of a reaction. • ...

The Mole Concept & Stoichiometry 2019-02-11

The Mole Concept & Stoichiometry crossword puzzle

Across

Avogadro's number
the percent ratio of actual yield to the theoretical yield.
a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so you can write large numbers using less digits.
a unit of mass for expressing the mass of an atom
the maximum amount of product that can be produced by a chemical reaction.
the basic unit of a chemical element.
the study of the quantitative relationships or ratios between two or more substances undergoing a physical change or chemical change (chemical reaction).
the number in front of a chemical formula

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the reactant that gets used first in a chemical reaction and therefore limits how much product can be formed.
the reactants that are left over when the reaction is finished.
a group of atoms bonded together
the mass of a given substance (chemical element or chemical compound) divided by the amount of substance
one way of representing the concentration of an element in a compound or a component in a mixture
an atom or molecule with a net electric charge
the amount of produce actually obtained from a chemical reaction.
the ratio between the amounts in moles of any two compounds involved in a balanced chemical reaction.
The mass of any element is equal to 1 of these
a quantity representing the power to which a given number or expression is to be raised

18 Clues: Avogadro's number • a group of atoms bonded together • the basic unit of a chemical element. • the number in front of a chemical formula • an atom or molecule with a net electric charge • The mass of any element is equal to 1 of these • a unit of mass for expressing the mass of an atom • the percent ratio of actual yield to the theoretical yield. • ...

Crossword Alberts Class 2023-11-15

Crossword Alberts Class crossword puzzle

Across

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
The amount of a substance that contains 6.02 x 1023 particles of that substance
Loss of Electrons
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
of reaction: The speed at which reactants are converted in products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Is a substance that is formed as the result of a chemical reaction.

Down

Gain of electrons
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
reaction: A chemical reaction that releases energy in the form of light or heat
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added or removed.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner

crossword 2024-11-04

Across

Equation: A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
The amount of a substance that contains 6.02 x 1023 particles of that substance
Loss of Electrons
Chemical Equation: is a chemical equation with the same number of atoms of each element on both sides of the arrow
Mass: Mass in grams of one mole of a substance
A substance that takes part in and undergoes change during a reaction
of reaction The speed at which reactants are converted in products
is the number in front of the formula, that is related to the properties of the products. For example 2 H2O means there is two molecules of water
Is a substance that is formed as the result of a chemical reaction.

Down

Gain of electrons
reaction: A process in which one or more substances, the reactants, are converted to one or more different substances called the products
reaction: A chemical reaction that releases energy in the form of light or heat
A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
of Conservation of Mass: for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity cannot be added or removed.
reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in a molecule is written in this manner

18 Clues: Gain of electrons • Loss of Electrons • Mass: Mass in grams of one mole of a substance • of reaction The speed at which reactants are converted in products • Is a substance that is formed as the result of a chemical reaction. • A substance that takes part in and undergoes change during a reaction • ...

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