chemical reaction Crossword Puzzles

Acids + Bases 2021-05-30

Across

A basic chemical product that is used to remove color from a fabric or fiber, to clean or to remove stains
A neutralisation reaction is achieved when a strong acid and strong base has a pH ______ to 7
A reaction that creates salt and water as a byproduct
A ________ tells us how basic or acidic a solution is
A type of indicator that turn red when a solution has a pH of 1
A compound that changes color in solution over a range of pH values
A basic substance tastes ___________

Down

A chemical with a chemical formula of HCl
A substance with a pH level of 7 is _____________
Vinegar is used to cure wasp stings that are alkaline in nature. This is an example of a __________________ reaction
A substance that conducts electricity when dissolved in water
When a solution has an equal number of hydrogen and hydroxyl ions it is _________
A substance with a pH level of 3 is __________
The liquid that is created as a result of a neutralisation reaction
A scientific instrument that measures the hydrogen-ion activity in water-based solutions
An acid tastes _______
A substance with a pH level of 9 is ______
The solid that is created as a result of a neutralisation reaction
A substance that may feel soapy (hint: it isn't soap)

19 Clues: An acid tastes _______ • A basic substance tastes ___________ • A chemical with a chemical formula of HCl • A substance with a pH level of 9 is ______ • A substance with a pH level of 3 is __________ • A substance with a pH level of 7 is _____________ • A reaction that creates salt and water as a byproduct • A ________ tells us how basic or acidic a solution is • ...

Burkholder Chapter 13 Peytlynn Aliemenious 2017-10-11

Burkholder Chapter 13 Peytlynn Aliemenious crossword puzzle

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a reaction that releases energy
a reaction that absorbs energy
no atoms are gained or lost during any reaction
a substance that undergoes a chemical change

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is a substance that lowers the activation energy of a chemical reaction
A+B-AB
AB-A+B
a substance that is the result of the chemical change
the minimum energy required to overcome the initial breaking of bonds in reactants
is the amount of energy required to pull two bonded atoms apart

10 Clues: A+B-AB • AB-A+B • a reaction that absorbs energy • a reaction that releases energy • a substance that undergoes a chemical change • no atoms are gained or lost during any reaction • a substance that is the result of the chemical change • is a substance that lowers the activation energy of a chemical reaction • ...

Enzymes and Homeostasis 2021-09-30

Enzymes and Homeostasis crossword puzzle

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Proteins that act as biological catalys.
Energy needed to get a reaction started.
The reactants of enzyme-catalyzed reactions.
Elements that enter into a chemical reaction.

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Is a substance that speeds up the rate of a chemical reaction.
Process by which organisms maintain a relatively stable internal environment.
Body temperature is controlled from within.
Process that changes, or transforms, one set of chemicals into another.
Body temperature is mainly determined by the temperature of its environment.
Elements or compounds produced by a chemical reaction.

10 Clues: Proteins that act as biological catalys. • Energy needed to get a reaction started. • Body temperature is controlled from within. • The reactants of enzyme-catalyzed reactions. • Elements that enter into a chemical reaction. • Elements or compounds produced by a chemical reaction. • Is a substance that speeds up the rate of a chemical reaction. • ...

Thermochemistry Vocabulary 2023-05-25

Thermochemistry Vocabulary crossword puzzle

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total heat content of a system
energy stored in an object
degree of hotness or coldness
amount of heat needed to raise temp. by 1 degree.
tool used to measure heat in a chemical reaction
reaction accompanied by release of cold
energy stored in the chemical bonds of substance

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energy is neither created nor destroyed
reaction accompanied by release of heat
Sl unit of energy
energy transferred because of temperature differences
the study of heat energy
property that is transferred between bodies
the energy of movement
energy unit equal to energy required to raise 1g h2o by one degree.

15 Clues: Sl unit of energy • the energy of movement • the study of heat energy • energy stored in an object • degree of hotness or coldness • total heat content of a system • energy is neither created nor destroyed • reaction accompanied by release of heat • reaction accompanied by release of cold • property that is transferred between bodies • ...

English work 2020-04-18

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is made after a reaction
fighting for 1 day
usually purses are in this shape
happens after an action
colon inserted in sentences
products used to make a reaction happen
cannot wait
stopping
is very important in english
a natural disaster
a metal thing inserted under a wooden stick

Down

a lot pictures inserted
a complicated drawing technique
vertical line inserted in shapes
tea party an event against Britain
equation words that make up a equation
reaction a term in science which is almost like cooking
numbers
fighting for a longtime
a group of shapes in math
we have to use a lot of mathematical operation

21 Clues: numbers • stopping • cannot wait • fighting for 1 day • a natural disaster • a lot pictures inserted • happens after an action • fighting for a longtime • is made after a reaction • a group of shapes in math • is very important in english • colon inserted in sentences • a complicated drawing technique • usually purses are in this shape • vertical line inserted in shapes • ...

Balancing Chemical Equations Station Lab Crossword 2022-10-05

Balancing Chemical Equations Station Lab Crossword crossword puzzle

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Something that takes up space.
Shows that something was created or destroyed.
Means that a reaction is taking place in an equation.
Matter cannot be created or ________.
Before chemical reaction.
Need to be equal on both sides of the equation.

Down

Shows nothing was created or destroyed.
Law of __________ of mass
After chemical reaction.
event that changes matter

10 Clues: After chemical reaction. • Law of __________ of mass • event that changes matter • Before chemical reaction. • Something that takes up space. • Matter cannot be created or ________. • Shows nothing was created or destroyed. • Shows that something was created or destroyed. • Need to be equal on both sides of the equation. • ...

Ionic Bonding 5 2025-08-16

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A reaction involving both oxidation and reduction
Substance present at the start of a reaction
Capacity to do work or cause change
Substance formed in a chemical reaction
Horizontal row in the periodic table

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Loss of electrons
Group 17 elements that form -1 ions
Gain of electrons
Process of chemical change
Vertical column in the periodic table

10 Clues: Loss of electrons • Gain of electrons • Process of chemical change • Group 17 elements that form -1 ions • Capacity to do work or cause change • Horizontal row in the periodic table • Vertical column in the periodic table • Substance formed in a chemical reaction • Substance present at the start of a reaction • A reaction involving both oxidation and reduction

Thermochemistry Vocabulary 2023-05-25

Across

total heat content of a system
energy stored in an object
degree of hotness or coldness
amount of heat needed to raise temp. by 1 degree.
tool used to measure heat in a chemical reaction
reaction accompanied by release of cold
energy stored in the chemical bonds of substance

Down

energy is neither created nor destroyed
reaction accompanied by release of heat
Sl unit of energy
energy transferred because of temperature differences
the study of heat energy
property that is transferred between bodies
the energy of movement
energy unit equal to energy required to raise 1g h2o by one degree.

Thermochemistry Vocabulary 2023-05-25

Across

total heat content of a system
energy stored in an object
degree of hotness or coldness
amount of heat needed to raise temp. by 1 degree.
tool used to measure heat in a chemical reaction
reaction accompanied by release of cold
energy stored in the chemical bonds of substance

Down

energy is neither created nor destroyed
reaction accompanied by release of heat
Sl unit of energy
energy transferred because of temperature differences
the study of heat energy
property that is transferred between bodies
the energy of movement
energy unit equal to energy required to raise 1g h2o by one degree.

Thermochemistry Vocabulary 2023-05-25

Across

total heat content of a system
energy stored in an object
degree of hotness or coldness
amount of heat needed to raise temp. by 1 degree.
tool used to measure heat in a chemical reaction
reaction accompanied by release of cold
energy stored in the chemical bonds of substance

Down

energy is neither created nor destroyed
reaction accompanied by release of heat
Sl unit of energy
energy transferred because of temperature differences
the study of heat energy
property that is transferred between bodies
the energy of movement
energy unit equal to energy required to raise 1g h2o by one degree.

THSB review 2024-05-15

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What do proteins break down into? amino acids
polymer of glucose, used in plant body structures
A substance produced in a chemical reaction
to produce
What process in the body breaks down proteins?
What substances makes up the majority of animals and humans?
acids Monomer molecules that combine to form different proteins
What substance makes up the majority of plants?
the process plants use to convert CO2 and H2O into glucose and O2
What substance often forms when monomers react to form polymers?
a group of compounds consisting of carbon, hydrogen, and oxygen, atoms. Make up plant body structures.
Polymers composed of one or more long chains of amino acids, they are essential for all living things

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mass cannot be created or destroyed
a polymer of glucose monomers used in plant roots and fruit structures
What makes up polymers?
A chemical substance that is present at the start of a chemical reaction
reaction in plants between 6 water and 6 carbon dioxide molecules into 1 glucose and 6 oxygen molecules
Produced during photosynthesis. Monomer of carbohydrates starch and cellulose.

18 Clues: to produce • What makes up polymers? • mass cannot be created or destroyed • A substance produced in a chemical reaction • What do proteins break down into? amino acids • What process in the body breaks down proteins? • What substance makes up the majority of plants? • polymer of glucose, used in plant body structures • ...

Chemistry 2023-04-04

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When the reactants and products DO NOT equal each other
Anything that has mass and takes up space
The substances left after the chemical reaction
The law stating that matter cannot created or destroyed

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When the reactants and products equal each other
Define R.A.P.
The big numbers in front of the symbols in a chemical reaction
The substances that create the reaction
The change that affects the equations
The little numbers below the symbols in a chemical reaction

10 Clues: Define R.A.P. • The change that affects the equations • The substances that create the reaction • Anything that has mass and takes up space • The substances left after the chemical reaction • When the reactants and products equal each other • When the reactants and products DO NOT equal each other • The law stating that matter cannot created or destroyed • ...

Chapter 13 Crossword-Brooke Sintobin 2020-10-15

Chapter 13 Crossword-Brooke Sintobin crossword puzzle

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a reaction that releases energy.
a substance that lowers the activation energy of a chemical reaction.
an acid that completely ionizes in water.
a reaction that absorbs energy.

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when reaction and its reverse act at the same time.
an acid that does not completely ionize in water.
a measure of concentration of hydrogen ions.
how quickly the concentration of reactants decreases and how quickly the concentration of products increases.
a chemical that accepts a hydrogen ion.
a chemical that donates a hydrogen ion.

10 Clues: a reaction that absorbs energy. • a reaction that releases energy. • a chemical that accepts a hydrogen ion. • a chemical that donates a hydrogen ion. • an acid that completely ionizes in water. • a measure of concentration of hydrogen ions. • an acid that does not completely ionize in water. • when reaction and its reverse act at the same time. • ...

Chemistry Unit Test Review 2014-03-09

Chemistry Unit Test Review crossword puzzle

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When bases are put in water, they release _____________ ions.
When put into water, acids release _________ ions.
In a chemical reaction the atoms will be
A phase change is a type of
A solution that has a pH above 7 is a ______
When hydronium, H3O+ and hydroxide, OH- react what is produced is ______________
When energy is released, bonds are _____________
Chemical energy is energy that is present in _____________

Down

This type of paper indicator give the specific pH
Energy is transferred from the surroundings to the reactants in an _____________ reaction
Energy is released to _________ bonds
In an exothermic reaction, energy is transferred from the reactants and is __________ into the surroundings.
The reactants are different from the products in a ________change
Energy was absorbed to ________ bonds
When acids and bases neutralize they produce a _________

15 Clues: A phase change is a type of • Energy is released to _________ bonds • Energy was absorbed to ________ bonds • In a chemical reaction the atoms will be • A solution that has a pH above 7 is a ______ • When energy is released, bonds are _____________ • This type of paper indicator give the specific pH • When put into water, acids release _________ ions. • ...

Masons Crossword Puzzle 2024-05-15

Masons Crossword Puzzle crossword puzzle

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the study of the make-up of all things and how they behave
the amount of space occupied by any three-dimensional solid
anything with molecules that takes up space and can be weighed
the basic unit of a chemical element
a physical combination of two or more substances that aren't chemically joined
substance made up of different elements joined together by a chemical bond.
the ability to do work

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sticking together
The chemical substances which are formed due to a chemical reaction between two or more chemical substances
the degree of hotness or coldness of an object
an action taken in response to something.
a basic part of a whole
the quantity of matter within a given object.
The smallest particle of a substance that has all of the physical and chemical properties of that substance.
an attraction between atoms
the form of energy that is transferred between two substances at different temperatures

16 Clues: sticking together • the ability to do work • a basic part of a whole • an attraction between atoms • the basic unit of a chemical element • an action taken in response to something. • the quantity of matter within a given object. • the degree of hotness or coldness of an object • the study of the make-up of all things and how they behave • ...

TEAS Science Practice Problem Answers 2 2017-03-22

TEAS Science Practice Problem Answers 2 crossword puzzle

Across

Positively charged atom
A chemical reaction that requires energy to occur
Requiring narrow environmental conditions
Always contain one allele of each type
Storage form of carbohydrates in animals
Proteins composed of monomers called amino acids

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A chemical reaction that releases energy as a product
A phase change from gas to solid that requires the subtraction of heat
Represents the sum total of all the chromosomal information in the cell
The reactant in a chemical reaction
Negatively charged atom

11 Clues: Positively charged atom • Negatively charged atom • The reactant in a chemical reaction • Always contain one allele of each type • Storage form of carbohydrates in animals • Requiring narrow environmental conditions • Proteins composed of monomers called amino acids • A chemical reaction that requires energy to occur • A chemical reaction that releases energy as a product • ...

Fuels Review 2024-10-21

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how thick or runny a liquid is
raw material, used to make a substance
a formula that represents the composition of any member of that homologous series
when a substance reacts only partially with oxygen
a chemical reaction where large alkane molecules are converted into smaller alkenes and alkenes
a substance that speeds up a chemical reaction without being used up
a family of compounds with similar chemical properties and a gradual trend in physical properties
compound containing hydrogen and carbon only
a compound that only contains single bonds between the atoms
a combustion reaction that takes place with plenty of oxygen

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rainwater more acidic than usual
a method of separating liquids due to different boiling points
unwanted substance found mixed into a useful substance
to start burning
hydrocarbon where there are on or more carbon-carbon double bonds
when a gas turns to liquid
when a liquid turns to gas

17 Clues: to start burning • when a gas turns to liquid • when a liquid turns to gas • how thick or runny a liquid is • rainwater more acidic than usual • raw material, used to make a substance • compound containing hydrogen and carbon only • when a substance reacts only partially with oxygen • unwanted substance found mixed into a useful substance • ...

Types of Reactions 2024-05-13

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Absorbs heat energy from its surroundings
Releases heat energy to its surroundings
When an reacts with a base to form water and salt
When soluble reactants form an insoluble product
a chemical reaction triggered by temperature changes
A chemical reaction initiated by light energy
Fuel reacts with oxygen,releasing energy and forming carbon dioxide and water

Down

When a more reactive element displaces the weaker one
Chemical Breakdown
The formation of a complex compound by binding a metal ion with a ligand
When two or more substances combine together
Decompostion of a compound using electricity
Involves a substances(catalyst)that speeds up the reaction without being consumed itself
A single substance undergoing simultaneous oxidation and reduction
One reactant undergoes oxidation by losing electrons while another reactant undergoes reduction by gaining those electrons

15 Clues: Chemical Breakdown • Releases heat energy to its surroundings • Absorbs heat energy from its surroundings • When two or more substances combine together • Decompostion of a compound using electricity • A chemical reaction initiated by light energy • When soluble reactants form an insoluble product • When an reacts with a base to form water and salt • ...

Types of Reactions 2024-05-12

Across

When two or more substances combine together.
A single substance undergoing simultaneous oxidation and reduction.
When an acid reacts with a base to form water and a salt.
The formation of a complex compound by binding a metal ion with a ligand.
Chemical Breakdown
Decomposition of a compound using electricity.
A chemical reaction initiated by light energy.
One reactant undergoes oxidation by losing electrons, while another reactant undergoes reduction by gaining those electrons.

Down

When a more reactive element displaces the weaker one.
When soluble reactants form an insoluble product (precipitate).
Absorbs heat energy from its surroundings.
Fuel reacts with oxygen, releasing energy and forming carbon dioxide and water.
A chemical reaction triggered by temperature changes.
Releases heat energy to its surroundings.
Involves a substance (catalyst) that speeds up the reaction without being consumed itself.

15 Clues: Chemical Breakdown • Releases heat energy to its surroundings. • Absorbs heat energy from its surroundings. • When two or more substances combine together. • Decomposition of a compound using electricity. • A chemical reaction initiated by light energy. • A chemical reaction triggered by temperature changes. • When a more reactive element displaces the weaker one. • ...

Chemistry Vocab 2012-12-02

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a negative ion
a charged particle
the chemical bond that results from sharing valence electrons
a solid produced during a chemical reaction
the number written in front of a reaction or product
a positively charged ion
the force that holds two atoms together
a chemical reaction in which 2 or more substances react to produce one product
particle formed when 2 or more atom are covalently bonded

Down

charge of an ion
an ionic compound whose aqueous solution conducts an electric current

11 Clues: a negative ion • charge of an ion • a charged particle • a positively charged ion • the force that holds two atoms together • a solid produced during a chemical reaction • the number written in front of a reaction or product • particle formed when 2 or more atom are covalently bonded • the chemical bond that results from sharing valence electrons • ...

Chemistry 2025-03-11

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Type of bond that formed when charged atoms combine
When substances change into another form they undergo a chemical
Substances that come out of a chemical reaction
Every stoichiometry problem must start with a ____ equation
A count of particles
Basic building block of matter

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Expected ionic charge of a fluorine ion, ______ one
An atom that has gained or lost and electron
Substances that go into a chemical reaction
Number of valance electrons in a chlorine atom
Only one type of atom

11 Clues: A count of particles • Only one type of atom • Basic building block of matter • Substances that go into a chemical reaction • An atom that has gained or lost and electron • Number of valance electrons in a chlorine atom • Substances that come out of a chemical reaction • Type of bond that formed when charged atoms combine • ...

Types of Chemical Reactions 2021-12-12

Types of Chemical Reactions crossword puzzle

Across

reaction- Have two ionic compounds that are exchanging anions or cations.
reaction- A reaction in which one element is substituted for another element in a compound.
reaction- A reaction in which a compound breaks down into two or more simpler substances.

Down

The substance(s) to the left of the arrow in a chemical equation.
equation- A symbolic representation of chemical reaction in the form of symbols and formulae where in the reactant entities are given on the left-hand side and the product entities on right hand side.
series- A list of elements in decreasing order of their reactivity.
reaction- A reaction in which two reactants combine to form one product.
reaction- A reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
A substance that is formed as the result of a chemical reaction.

9 Clues: A substance that is formed as the result of a chemical reaction. • The substance(s) to the left of the arrow in a chemical equation. • series- A list of elements in decreasing order of their reactivity. • reaction- A reaction in which two reactants combine to form one product. • reaction- Have two ionic compounds that are exchanging anions or cations. • ...

Unit 1 - Biomolecules 2022-12-08

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Macromolecules that store and transmit hereditary or genetic information,(DNA/RNA); Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorous
the forces that hold atoms together within a molecule
Proteins that act as biological catalysts and provide a site where the reactants can be brought together to react. Such a site reduces the energy needed for the reaction.
Monomer to the polymer nucleic acids, have three parts, a 5-carbon sugar, a phosphate group, and a nitrogenous base.
the basic unit of matter
molecules forming ionic or a hydrogen bond with water molecules. “Water loving”
the chemical processes that occur within a living organism in order to maintain life
nonpolar molecules that repel water molecules. “Water fearing”
pockets in the folds on enzyme surfaces where the substrate binds and a chemical reaction occurs
Adenosine triphosphate, abbreviated as ___, is the source of energy for use and storage at the cellular level.
dissolving substance in a solution. Ex: water
type of mixture in which all components are evenly distributed
a pure substance that consists of one type of atom
chemical reactions that release energy (often occur on their own, or spontaneously)
a substance on which an enzyme acts during a chemical reaction to help lower activation energy
mixture of water and nondissolved material
During non-competitive inhibition, molecules do not sit in the active site but will attach to an _______.
a substance that speeds up the rate of the reaction by lowering the activation energy
A testable explanation or prediction based on the observation and the scientist’s prior knowledge
The process of breaking large molecules down into smaller molecules, releasing energy
Molecules sit in the active site of the enzyme and prevent the entry of the substrate.
A prediction that there is no relationship between two variables.
attraction of molecules of the same substance
small units that compose polymers
attraction between molecules of different substances
Molecules do not sit in the active site but will attach to an allosteric site and changes the shape of the enzyme therefore changing the shape of the active site.
attraction between a hydrogen atom and another atom

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Chemical bond formed when one or more electrons are transferred from one atom to another
tendency of water to rise in a thin tube
Reasoning based on observation
the forces that exist between molecules
A chemical reaction that builds up molecules by losing water molecules
Reasoning based on analysis
The energy needed to get a reaction started
chemical reactions that absorb energy (will NOT occur without an input of energy)
a substance formed by the chemical combination of two or more elements in definite proportions
A water molecule is ____ if there is an uneven distribution of electrons between the hydrogen atoms and oxygen atoms. The negative pole is near the oxygen atom and the positive pole is near the hydrogen atoms
Organic compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
The process of splitting a compound into fragments with the addition of water; a kind of reaction that is used to break down polymers into simpler units, e.g. starch into glucose.
(sugars); Carbon, Hydrogen, and Oxygen
a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
large units made up of a chain of monomers
The process of creating large molecules from smaller molecules, utilizing energy
Atoms of the same element that differ in the number of neutrons they contain
Chemical bond formed when the electrons are shared between atoms
Carbon, Hydrogen, Oxygen, and Nitrogen
substance that is dissolved in solution. Ex: sugar, salt
(fats); Carbon, Hydrogen, and Oxygen

48 Clues: the basic unit of matter • Reasoning based on analysis • Reasoning based on observation • small units that compose polymers • (fats); Carbon, Hydrogen, and Oxygen • (sugars); Carbon, Hydrogen, and Oxygen • Carbon, Hydrogen, Oxygen, and Nitrogen • the forces that exist between molecules • tendency of water to rise in a thin tube • mixture of water and nondissolved material • ...

ch-1 2021-08-23

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REACTION OF ZINC GRANULES AND DILUTE HYDROCHLORIC ACID GIVES _________.
SUBSTANCES FORMED AFTER REACTION WERITTEN ______ OF THE EQUATION.
THE ARROWHEAD IN A REACTION SHOWS DIRECTION OF ______.
H2 + o2 ---> _____ .
SUBSTANCES PRESENT BEFORE A REACTION
THE PRECIPITATE FORMED BY THE REACTION OF IRONCHLORIDE AND SODIUM HYDROXIDE IS ______ .

Down

THE CHEMICAL EQUATION MUST BE _______ .
THE COEFFICIENT OF OXYGEN IN THE REACTION OF IRON AND WATER IS _______ .
THE CHEMICAL REACTION OF CITRIC ACID AND POTASSIUM PERMANGANATE IS CHARACTERIZED BY CHANGE IN ______ .
IN THE FORMATION OF CO2, ____ IS WRITTEN IN RHS OF THE EQUATION.

10 Clues: H2 + o2 ---> _____ . • SUBSTANCES PRESENT BEFORE A REACTION • THE CHEMICAL EQUATION MUST BE _______ . • THE ARROWHEAD IN A REACTION SHOWS DIRECTION OF ______. • IN THE FORMATION OF CO2, ____ IS WRITTEN IN RHS OF THE EQUATION. • SUBSTANCES FORMED AFTER REACTION WERITTEN ______ OF THE EQUATION. • REACTION OF ZINC GRANULES AND DILUTE HYDROCHLORIC ACID GIVES _________. • ...

tailor cook - macromolecules 2020-11-18

tailor cook - macromolecules crossword puzzle

Across

pancreatic enzyme that catalyzes the breakdown
breaks down protiens to peptides
breaks down protiens into polypeptides
complex organic substance present in living cells
region on an enzyme that binds to a protien
pulpy acidic fluid
requiring absorption of heat
protien that speeds up reaction
large gland behind the stomach
basic unit of a chemical element

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enzyme found in saliva
food is crushed by teeth
simple sugar
molecule containing a large number of atoms
canal that connects from your throat to stomach
fatty acid insoluble in water
increses rate of a chemical reaction
changed shape
potatoes, pasta, apples
surface on which an organism lives

20 Clues: simple sugar • changed shape • pulpy acidic fluid • enzyme found in saliva • potatoes, pasta, apples • food is crushed by teeth • requiring absorption of heat • fatty acid insoluble in water • large gland behind the stomach • protien that speeds up reaction • breaks down protiens to peptides • basic unit of a chemical element • surface on which an organism lives • ...

Chemistry 2022-02-14

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Third element
Si
Process that releases heat energy
47 protons
8 neutrons
6th element
Gas we breathe in
Amount of space an object occupies
Something that occupies space and has mass
Process that absorbs heat
Symbol for Gold
Atomic number
Amount of matter in a certain space

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Change resulting from formation of new substances
Change that affects the shape or phase
Visual representation of Data
Amount of matter in an object
H20
Mn
54th element
Protons
Substance that results from chemical reaction
Number of protons in neutral atom
Smallest unit of matter
Sodium
Substant that takes part in chemical reaction

26 Clues: Si • Mn • H20 • Sodium • Protons • 47 protons • 8 neutrons • 6th element • 54th element • Third element • Atomic number • Symbol for Gold • Gas we breathe in • Smallest unit of matter • Process that absorbs heat • Visual representation of Data • Amount of matter in an object • Process that releases heat energy • Number of protons in neutral atom • Amount of space an object occupies • ...

Science 2023-12-11

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the atomic number is just the amount of ___
reaction where the item gets warmer
you can find a ______ in the nucleus
Cl is an element on the ________
reaction where the item gets colder
NaCl + Mg --> MgCl2 + Na is an example of a _____ reaction
the ______ of water is 1g/ml
changes but does not create any new substances
CH4 + O2 → CO2 + H2O
AgNO3 + NaCl --> AgCl + NaNO3 is an example of a _____ reaction

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MgO is an example of a ______
CO2 --> C + O2 is an example of a chemical ______
the ______ of an atom surrounds the nucleus
Na + Cl2 --> NaCl is an example of a _____ reaction
He is a ______
creates a new substance but has the same mass
Fe is a ______
CO2 --> C + O2 is an example of a _____ reaction
NaCl is the ____ of Na + Cl2
CO2 is an example of a ______

20 Clues: He is a ______ • Fe is a ______ • CH4 + O2 → CO2 + H2O • NaCl is the ____ of Na + Cl2 • the ______ of water is 1g/ml • MgO is an example of a ______ • CO2 is an example of a ______ • Cl is an element on the ________ • reaction where the item gets warmer • reaction where the item gets colder • you can find a ______ in the nucleus • the atomic number is just the amount of ___ • ...

1250 2025-11-16

Across

Study of light-driven chemical changes
Unsaturated hydrocarbon with double bonds
Efficiency of photochemical reaction
Compound of hydrogen and carbon
Separation of crude oil by boiling points
Time for half substance to react or decay
Proportionality factor in rate law
Rate independent of concentration
High-energy configuration during reaction
Rate proportional to one reactant
Explains reaction rates by particle collisions
Graph showing reaction energy progress
Process of purifying crude oil
Rearrangement of hydrocarbons for higher octane

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Rate proportional to two reactants
Mathematical relation of rate and concentration
Breaking large hydrocarbons into smaller ones
Unsaturated hydrocarbon with triple bonds
Exponent in rate equation
Light-induced acceleration of reaction
Saturated hydrocarbon with single bonds
Transient species in reaction mechanism
Study of chemicals derived from petroleum
Relates rate constant to temperature
Energy due to position or configuration

25 Clues: Exponent in rate equation • Process of purifying crude oil • Compound of hydrogen and carbon • Rate independent of concentration • Rate proportional to one reactant • Rate proportional to two reactants • Proportionality factor in rate law • Efficiency of photochemical reaction • Relates rate constant to temperature • Study of light-driven chemical changes • ...

Unit crossword puzzle 2021-04-13

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is the law of mass
are on the outer levels of a atom
start before a chemical reaction
result from a chemical reaction

Down

end after chemical reaction
is the positive part of the nucleus
are the negative part of the nucleus
does not create new substances
is the horizontal rows in a periodic table
are the vertical columns in a periodic table

10 Clues: is the law of mass • end after chemical reaction • does not create new substances • result from a chemical reaction • start before a chemical reaction • are on the outer levels of a atom • is the positive part of the nucleus • are the negative part of the nucleus • is the horizontal rows in a periodic table • are the vertical columns in a periodic table

science homework 2 2023-04-24

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energy of movement
chemical reaction that occurs in the chlorophyll of a plant
a chemical reaction that release energy
carries water and minerals through the plant
the green substance where photosynthesis takes place

Down

contains plant cell sap
loops of DNA in a bacteria cell
contains DNA and controls the cell
cannot be created or destroyed only stored and transferred
a chemical reaction that absorbs energy

10 Clues: energy of movement • contains plant cell sap • loops of DNA in a bacteria cell • contains DNA and controls the cell • a chemical reaction that release energy • a chemical reaction that absorbs energy • carries water and minerals through the plant • the green substance where photosynthesis takes place • cannot be created or destroyed only stored and transferred • ...

CH-1 2021-08-23

Across

IN THE FORMATION OF CO2, ____ IS WRITTEN IN RHS OF THE EQUATION.
SUBSTANCES FORMED AFTER REACTION WERITTEN ______ OF THE EQUATION.
REACTION OF ZINC GRANULES AND DILUTE HYDROCHLORIC ACID GIVES _________.
THE CHEMICAL EQUATION MUST BE _______ .
THE ARROWHEAD IN A REACTION SHOWS DIRECTION OF ______.

Down

THE CHEMICAL REACTION OF CITRIC ACID AND POTASSIUM PERMANGANATE IS CHARACTERIZED BY CHANGE IN ______ .
THE PRECIPITATE FORMED BY THE REACTION OF IRONCHLORIDE AND SODIUM HYDROXIDE IS ______ .
H2 + o2 ---> _____ .
SUBSTANCES PRESENT BEFORE A REACTION
THE COEFFICIENT OF OXYGEN IN THE REACTION OF IRON AND WATER IS _______ .

Chapter 3.2 2021-10-06

Across

uncover or reveal
very hot bubble water
depends on mass
needed to bake pretzels
a change of color
things you see at a park
a chemical property
a drink
a physical change that cannot be reversed
a energy and chemical change
a chemical change occurring

Down

a chemical reaction with plants
only physical properties change
a French chemist
a light stick
a change in size,shape, or form
cutting this the mass stays the same
an ice cube
a balloon insides
substance is different after the change

20 Clues: a drink • an ice cube • a light stick • depends on mass • a French chemist • uncover or reveal • a change of color • a balloon insides • a chemical property • very hot bubble water • needed to bake pretzels • things you see at a park • a chemical change occurring • a energy and chemical change • a chemical reaction with plants • only physical properties change • a change in size,shape, or form • ...

Unit 1 - Biomolecules 2022-12-08

Across

Macromolecules that store and transmit hereditary or genetic information,(DNA/RNA); Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorous
the forces that hold atoms together within a molecule
Proteins that act as biological catalysts and provide a site where the reactants can be brought together to react. Such a site reduces the energy needed for the reaction.
Monomer to the polymer nucleic acids, have three parts, a 5-carbon sugar, a phosphate group, and a nitrogenous base.
the basic unit of matter
molecules forming ionic or a hydrogen bond with water molecules. “Water loving”
the chemical processes that occur within a living organism in order to maintain life
nonpolar molecules that repel water molecules. “Water fearing”
pockets in the folds on enzyme surfaces where the substrate binds and a chemical reaction occurs
Adenosine triphosphate, abbreviated as ___, is the source of energy for use and storage at the cellular level.
dissolving substance in a solution. Ex: water
type of mixture in which all components are evenly distributed
a pure substance that consists of one type of atom
chemical reactions that release energy (often occur on their own, or spontaneously)
a substance on which an enzyme acts during a chemical reaction to help lower activation energy
mixture of water and nondissolved material
During non-competitive inhibition, molecules do not sit in the active site but will attach to an _______.
a substance that speeds up the rate of the reaction by lowering the activation energy
A testable explanation or prediction based on the observation and the scientist’s prior knowledge
The process of breaking large molecules down into smaller molecules, releasing energy
Molecules sit in the active site of the enzyme and prevent the entry of the substrate.
A prediction that there is no relationship between two variables.
attraction of molecules of the same substance
small units that compose polymers
attraction between molecules of different substances
Molecules do not sit in the active site but will attach to an allosteric site and changes the shape of the enzyme therefore changing the shape of the active site.
attraction between a hydrogen atom and another atom

Down

Chemical bond formed when one or more electrons are transferred from one atom to another
tendency of water to rise in a thin tube
Reasoning based on observation
the forces that exist between molecules
A chemical reaction that builds up molecules by losing water molecules
Reasoning based on analysis
The energy needed to get a reaction started
chemical reactions that absorb energy (will NOT occur without an input of energy)
a substance formed by the chemical combination of two or more elements in definite proportions
A water molecule is ____ if there is an uneven distribution of electrons between the hydrogen atoms and oxygen atoms. The negative pole is near the oxygen atom and the positive pole is near the hydrogen atoms
Organic compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
The process of splitting a compound into fragments with the addition of water; a kind of reaction that is used to break down polymers into simpler units, e.g. starch into glucose.
(sugars); Carbon, Hydrogen, and Oxygen
a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
large units made up of a chain of monomers
The process of creating large molecules from smaller molecules, utilizing energy
Atoms of the same element that differ in the number of neutrons they contain
Chemical bond formed when the electrons are shared between atoms
Carbon, Hydrogen, Oxygen, and Nitrogen
substance that is dissolved in solution. Ex: sugar, salt
(fats); Carbon, Hydrogen, and Oxygen

Masons Crossword Puzzle 2024-05-15

Across

the study of the make-up of all things and how they behave
the amount of space occupied by any three-dimensional solid
anything with molecules that takes up space and can be weighed
the basic unit of a chemical element
a physical combination of two or more substances that aren't chemically joined
substance made up of different elements joined together by a chemical bond.
the ability to do work

Down

sticking together
The chemical substances which are formed due to a chemical reaction between two or more chemical substances
the degree of hotness or coldness of an object
an action taken in response to something.
a basic part of a whole
the quantity of matter within a given object.
The smallest particle of a substance that has all of the physical and chemical properties of that substance.
an attraction between atoms
the form of energy that is transferred between two substances at different temperatures

CHEMISTRY COMES ALIVES 2024-09-13

Across

lipid-based signaling molecules that play a unique role in innate immune responses 47
A substance capable of donating an hydrogen ion 39
round particles made of fat and proteins that travel in your bloodstream to cells throughout your body 46
Lipids that are produced by the dehydration synthesis of one or more fatty acids with an alcohol like glycerol 42
Process by which water is used to split a substance into a smaller particle 42
Made up of two sugars 43
A protein that acts as a biological catalyst to speed up a chemical reaction 51
The tendency of atoms to interact in such away that they have eight electron 31
The outermost shell of any atom is called the valence shell and the electrons that reside in the valence shell are called valence electrons 31
Made up of many sugars 43
Made up of one sugar 43
protons are positively charged 24
Chemical reaction that releases engergy 37
Fat molecules that have more than one unsaturated carbon bond in the molecule 46
Substances that increase the rate of chemical reaction 38
a heterogeneous mixture in which the dispersed particles 29
the scientific study of planets and their planetary systems which includes moons, ring systems, gas clouds, and magnetospheres 26
Chemical bond formed by electron transfer between atom 29
Have different atomic forms of the same elements 27
A molecule of any of a class of compounds (42)
Chemical substances such as salt, acids, and bases, that ionize and dissociate in water and are capable of conduction and electrical current 39
Any compound composed of atoms held together by covalent bonds 41
the interatomic linkage that results from the sharing of an electron pair between two atoms 32
Group of chemical substance including certain hormones and cholesterol 47
A state of body equilibrium or stable internal environment of the body 39

Down

Process by which a large molecule is synthesized by removing water and covalent bonding smaller molecules together 36
the tendency of an atom to donate electrons and form positively charged cations34
A chemical substance or system that minimizes changes 41
Modifies lipids contains phosphorus 46
Building block of nucleic acids 53
a three dimensional description of the most likely location of an electron around an atom 25
Fats and oils composed of fatty acids and glycerol 45
A chemical reaction in which larger more complex atoms or molecules are formed form simpler form 36
Organic molecule that stores and releases chemical energy for the use in body cell 55
Having no net electric charge (42)
Refer to how a given nitrogenous base of DNA or RNA bonds to another nitrogenous base 54
A substance capable of binding with hydrogen ions 39
dissociate fully in water to produce the maximum number of H+ ions 41
a heterogeneous mixture in which the solid particles do not dissolve 29
The number of molecules in one mole of any substance, 6.02 x 10^23 30
Displacement reaction in which mixing an acid and base from water and a salt 40
neutrons are uncharged 24
electrons are negatively charged 24
the unfolding or breaking up of a protein, modifying its standard three-dimensional structure 50
Chemical reaction that absorb energy 32
Isotopes that exhibit radioactive behavior 28
a compound made up of two or more chemical components that are not chemically 29linked.
Weak bond in which a hydrogen atom forms a bridge between two electron-hungry atoms 34
The smallest unit of an element (25)
an acid chemical which does not dissociate (split into ions) completely in water solution 41
Ability to do work (24)

51 Clues: Made up of one sugar 43 • Ability to do work (24) • Made up of two sugars 43 • Made up of many sugars 43 • neutrons are uncharged 24 • protons are positively charged 24 • Building block of nucleic acids 53 • Having no net electric charge (42) • electrons are negatively charged 24 • The smallest unit of an element (25) • Modifies lipids contains phosphorus 46 • ...

CHEMISTRY COMES ALIVE 2024-09-13

Across

lipid-based signaling molecules that play a unique role in innate immune responses 47
A substance capable of donating an hydrogen ion 39
round particles made of fat and proteins that travel in your bloodstream to cells throughout your body 46
Lipids that are produced by the dehydration synthesis of one or more fatty acids with an alcohol like glycerol 42
Process by which water is used to split a substance into a smaller particle 42
Made up of two sugars 43
A protein that acts as a biological catalyst to speed up a chemical reaction 51
The tendency of atoms to interact in such away that they have eight electron 31
The outermost shell of any atom is called the valence shell and the electrons that reside in the valence shell are called valence electrons 31
Made up of many sugars 43
Made up of one sugar 43
protons are positively charged 24
Chemical reaction that releases engergy 37
Fat molecules that have more than one unsaturated carbon bond in the molecule 46
Substances that increase the rate of chemical reaction 38
a heterogeneous mixture in which the dispersed particles 29
the scientific study of planets and their planetary systems which includes moons, ring systems, gas clouds, and magnetospheres 26
Chemical bond formed by electron transfer between atom 29
Have different atomic forms of the same elements 27
A molecule of any of a class of compounds (42)
Chemical substances such as salt, acids, and bases, that ionize and dissociate in water and are capable of conduction and electrical current 39
Any compound composed of atoms held together by covalent bonds 41
the interatomic linkage that results from the sharing of an electron pair between two atoms 32
Group of chemical substance including certain hormones and cholesterol 47
A state of body equilibrium or stable internal environment of the body 39

Down

Process by which a large molecule is synthesized by removing water and covalent bonding smaller molecules together 36
the tendency of an atom to donate electrons and form positively charged cations34
A chemical substance or system that minimizes changes 41
Modifies lipids contains phosphorus 46
Building block of nucleic acids 53
a three dimensional description of the most likely location of an electron around an atom 25
Fats and oils composed of fatty acids and glycerol 45
A chemical reaction in which larger more complex atoms or molecules are formed form simpler form 36
Organic molecule that stores and releases chemical energy for the use in body cell 55
Having no net electric charge (42)
Refer to how a given nitrogenous base of DNA or RNA bonds to another nitrogenous base 54
A substance capable of binding with hydrogen ions 39
dissociate fully in water to produce the maximum number of H+ ions 41
a heterogeneous mixture in which the solid particles do not dissolve 29
The number of molecules in one mole of any substance, 6.02 x 10^23 30
Displacement reaction in which mixing an acid and base from water and a salt 40
neutrons are uncharged 24
electrons are negatively charged 24
the unfolding or breaking up of a protein, modifying its standard three-dimensional structure 50
Chemical reaction that absorb energy 32
Isotopes that exhibit radioactive behavior 28
a compound made up of two or more chemical components that are not chemically 29linked.
Weak bond in which a hydrogen atom forms a bridge between two electron-hungry atoms 34
The smallest unit of an element (25)
an acid chemical which does not dissociate (split into ions) completely in water solution 41
Ability to do work (24)

enzyme crossword 2026-03-03

Across

new substance formed at the end of a chemical reaction
the active site having a set shape
a net release of free energy
organic cofactors
the sum of all chemical reactions occurring in the cell

Down

absorbs free energy from the surroundings
energy the energy required to start any reaction
breaking down large molecules to smaller ones
reduce or stop the enzyme from functioning
a flexible active site that changes shape, or conforms, to the substrate as they bond together.
the starting substance in a chemical reaction
making large molecules from smaller ones

12 Clues: organic cofactors • a net release of free energy • the active site having a set shape • making large molecules from smaller ones • absorbs free energy from the surroundings • reduce or stop the enzyme from functioning • breaking down large molecules to smaller ones • the starting substance in a chemical reaction • energy the energy required to start any reaction • ...

Organic Compounds And Enzymes 2016-08-25

Organic Compounds And Enzymes crossword puzzle

Across

A substance or molecule that participates in a chemical reaction
A fat molecule or a molecule that has similar properties, including waxes and steroids
(two words)an organic compound, either RNA or DNA whose molecules are made up of one or two chains of nucleotides and carry genetic information
a natural polymer that is present in all living cells and that plays a role in protein syntheses
an organic molecule that acts as the main energy source for cell processes
(two words)the minimum amount of energy required to start a chemical reaction
(two words)on an enzyme, the site that attaches to a substrate
(two words)a compound of a class of simple organic compounds that contain a carboxyl and an amino group and that combine to form proteins
a substance that forms in a chemical reaction
A molecule either protein or RNA that acts as a catalyst in biochemical reactions

Down

an organic compound that is made of one or more chains of amino acids and that is a principal component of all cells
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
an organic compound that consists of a sugar, and phosphate, and a nitrogenous base
(two words) compounds containing carbon that are typically found in living systemsEnergy The capacity to do work
composed mainly of fatty acids, a phosphate group, and a simple organic molecule such as glycerol. They are the main lipids in cell membranes.235
A class of molecules that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen
the material that contains the information that determines inherited characteristics
The reactant in reactions catalyzed by enzymes

18 Clues: a substance that forms in a chemical reaction • The reactant in reactions catalyzed by enzymes • (two words)on an enzyme, the site that attaches to a substrate • A substance or molecule that participates in a chemical reaction • an organic molecule that acts as the main energy source for cell processes • ...

Chapter 2 Vocab 2023-09-20

Across

The building block of matter; the smallest possible particle of an element.
A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
An attraction between two atoms as a result of sharing or transferring valence electrons
The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
A class of simple organic compounds important in living things as a source of both energy and structure
The tendency of energy to disperse and become less available to do work.
A substance that can produce hydroxide ions (OH accept hydrogen ions (H+) in solution.
The smallest particle of a covalently bonded compound.
A substance that is present before a chemical reaction and takes part in it, usually shown on the left hand side of a chemical equation.
A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
acid A class of organic compounds that serve as the building blocks of proteins.
The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
A substance that can produce hydrogen ions (H+ solution.
A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
A pure substance made of only one kind of atom.
The substances formed during a chemical reaction, usually indicated on the right hand side of a chemical equation.
change A change in a substance that does not change the identity of the substance (e.g., a change of form or state).

Down

Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a molecule having negative charge while others are positive
An organic compound comprising the elements carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
A pure substance made from two or more elements that are chemically combined.
The attraction between like particles within polar substances.
A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
change A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
The physical stuff that makes up the universe. Anything that occupies space and has mass.
A measurement of the average speed of the particles within a substance.
The attraction of particles in one substance for particles in a different substance.
compound A covalently bonded compound containing the element carbon.
A naturally occurring catalyst, usually a protein.
The process by which one substance, the solute, is broken up into smaller pieces by and distributed within a second substance, the solvent.

29 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The smallest particle of a covalently bonded compound. • A substance that can produce hydrogen ions (H+ solution. • The attraction between like particles within polar substances. • compound A covalently bonded compound containing the element carbon. • ...

Biology 2024-09-23

Across

compound: A covalently bonded compound containing the element carbon.
and cellulose.
A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
The substances formed during a chemical reaction, usually indicated on the righthand side of a chemical equation.
acid: A class of organic compounds that serve as the building blocks of proteins.
The tendency of energy to disperse and become less available to do work.
A pure substance made from two or more chemically combined elements.
The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
An organic compound comprised of carbon, hydrogen, and oxygen elements, including sugars, starch, and cellulose.
having a negative charge while others are positive.
enzyme catalyzes.
An organic compound comprised of the elements carbon, hydrogen, and oxygen; including sugars,
A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
The smallest particle of a covalently bonded compound.

Down

The process by which one substance, the solute, is broken up into smaller pieces by and distributed within a second substance, the solvent.
A pure substance made of only one kind of atom
A substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation.
change: A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
The attraction between like particles within polar substances.
A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
The building block of matter; the smallest possible particle of an element
A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that
The attraction of particles in one substance for particles in a different substance.
change: A change in a substance that does not change the identity of the substance (e.g., a change of form or state).
A measurement of the average speed of the particles within a substance.
An attraction between two atoms as a result of sharing or transferring valence electrons.
Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a
A substance that can produce hydroxide ions (OH−) or accept hydrogen ions (H+) in solution.
The ability to do work. Especially in biology, the driver of physical and chemical processes necessary for life
A substance that can produce hydrogen ions (H+) in solution.
The physical stuff that makes up the universe. Anything that occupies space and has mass
A naturally occurring catalyst, usually a protein.

32 Clues: and cellulose. • enzyme catalyzes. • A pure substance made of only one kind of atom • A naturally occurring catalyst, usually a protein. • having a negative charge while others are positive. • The smallest particle of a covalently bonded compound. • A substance that can produce hydrogen ions (H+) in solution. • ...

Crossword Puzzle 2013-11-24

Across

German chemist who devised a way to make ammonia cheaply
When ________ changes, the equilibrium constant changes
Does not affect equilibrium constant but speeds up reaction rate
Not included in equilibrium constant
When a chemical concentration in a reaction is decreased, the equilibrium shifts to _______ it
Reactions tend to go to the side with the lower ________
When pressure is increased, equilibrium shifts to the side with the least number of _______

Down

When a chemical concentration in a reaction is increased, the equilibrium shifts to _______ it
French scientist best known for his Principle
When the rate of the forward and reverse reaction are equal
Equilibrium Constant
Reactions tend to go to the side with the higher ________
Most random phase
Quicklime
Least random phase and not included in equilibrium constant

15 Clues: Quicklime • Most random phase • Equilibrium Constant • Not included in equilibrium constant • French scientist best known for his Principle • When ________ changes, the equilibrium constant changes • German chemist who devised a way to make ammonia cheaply • Reactions tend to go to the side with the lower ________ • ...

Chapter 6 Chemistry & Chemical Safety 2021-03-17

Chapter 6 Chemistry & Chemical Safety crossword puzzle

Across

A chemical change in the substance.
Water droplets emulsified in oil.
Capable of combining with or attracting water.
Liquids that are not capable of being mixed together to form stable solutions.
The smallest chemical components of an element.
Alcohols that evaporate easily
Characteristics that can be determined without a chemical reaction.
A Chemical combination of two or more atoms in definite proportions.
Also known as bases compounds that react with acids to form salts.
Acids derived from plants that are often used to exfoliate the skin.
Special kind of oil used in conditioners.
Sweet colorless, oily substance used as a solvent and a moisturizer.
The separation of an atom or molecule into positives and negative ions.
Subatomic particles with a positive charge.
Prolong, repeated, or long term exposure that can cause sensitivity.
A physical combination of matter in any proportion.
Science that deals with composition structures and properties of matter.
Oil droplets emulsified in water.
Compounds that contain carbon and evaporate very easily.
Substance that releases oxygen.
A substance that causes an increase in cellular mutations.
Subatomic particles with a negative charge.
Raise the pH of many hair products.
an atom or molecule that carries an electrical charge.
Molecules containing two or more atoms of the same element.
Unstable physical mixtures.
A colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions.
A change in the form or physical properties of a substance without chemical reaction.
subatomic particles with no change.

Down

Commonly Known as Lye.
Substance that should not be mixed or even stored near each other.
Uniform mixture of two or more substances.
Ingredients that brings two normally incompatible materials together.
Change in the chemical composition or makeup of a substance.
that is capable of igniting and burning.
/the simplest form of chemical matter.
Solution that has a pH below 7
Alpha hydroxy acid used in exfoliation and to lower the pH of products.
Heat from an external source for the reaction to occur.
A chemical reaction in which the oxidizing agent is reduced by losing oxygen.
Required by law for all products sold.
Substances that cause or believe it causes cancer.
Chemical reaction that releases a significant amount of heat.
Having an affinity for or an attraction to fat and oils.
An ion with negative electrical charge.
A chemical combination of two or more atoms of different elements.
A Substance that add hydrogen to a chemical compound.
Substances that allows oil and water to mix.
Colorless gas with a pungent odor that is composed of hydrogen nitrogen.
A Solution that has a pH above 7
Rapid oxidation of a substance accompanied by production of heat and light.
Dissolves the solute and makes a solution.
Substance that is dissolved in a solution.
A chemical combination of matter in definite proportions.
An unstable physical mixture of two or more immiscible substances.
Substance that occupies space and has mass.
an ion with a positive electrical charge.
Liquids that are mutually soluble, meaning that they can be mixed together to form stable solutions.
Measure of the acidity and alkalinity of a substance.
Represents the quantity of hydrogen ions.

60 Clues: Commonly Known as Lye. • Unstable physical mixtures. • Alcohols that evaporate easily • Solution that has a pH below 7 • Substance that releases oxygen. • A Solution that has a pH above 7 • Water droplets emulsified in oil. • Oil droplets emulsified in water. • A chemical change in the substance. • Raise the pH of many hair products. • subatomic particles with no change. • ...

Endothermic and exothermic reaction 2025-06-03

Endothermic and exothermic reaction crossword puzzle

Across

Energy is ............... in endothermic reactions.
A reaction that feels hot.
An example of an exothermic reaction.
Energy is ............. in exothermic reaction.

Down

More energy is released when bonds form in .......
More energy is needed to break bonds in ............
A reaction that feels cold.
An example of an endothermic reaction.
reaction A chemical reaction that involves the formation of new bonds.

9 Clues: A reaction that feels hot. • A reaction that feels cold. • An example of an exothermic reaction. • An example of an endothermic reaction. • Energy is ............. in exothermic reaction. • More energy is released when bonds form in ....... • Energy is ............... in endothermic reactions. • More energy is needed to break bonds in ............ • ...

Endothermic and exothermic reaction 2025-06-03

Across

Energy is ............... in endothermic reactions.
A reaction that feels hot.
An example of an exothermic reaction.
Energy is ............. in exothermic reaction.

Down

More energy is released when bonds form in .......
More energy is needed to break bonds in ............
A reaction that feels cold.
An example of an endothermic reaction.
reaction A chemical reaction that involves the formation of new bonds.

Chemistry Crossword 2014-11-03

Across

A chemical reaction that releases heat
Symbol of B
Has a symbol of H
a table where the elements are orginized
In between a metal and a non-metal
The slowest chemical change
The celestial body of silver
A neutral particle in an atom
mass Mass of one atom
Symbol of Kr and Supermans homeworld

Down

A catalyst involving living things
Symbol of Ag
dull brittle element that doesn't conduct electricity
A chemical reaction that absorbs heat
anything that has mass and occupies space
Element symbol is Au
The symbol of Mercury
Negatively charged subatomic particle
Ability of a substance to conduct electricity
Symbol for Neon
Amount of mass in a given area
Zinc
A pure substance that can't be broken down into other substances
The symbol of Oxygen
Symbol for Potassium

25 Clues: Zinc • Symbol of B • Symbol of Ag • Symbol for Neon • Has a symbol of H • Element symbol is Au • The symbol of Oxygen • Symbol for Potassium • The symbol of Mercury • mass Mass of one atom • The slowest chemical change • The celestial body of silver • A neutral particle in an atom • Amount of mass in a given area • A catalyst involving living things • In between a metal and a non-metal • ...

chemistry 2024-04-23

Across

discovered the nucleus of an atom
packets of light given off by excited atoms
a table in which chemical elements are arranged by atomic number
element with atomic number 7 and atomic mass 14.01
easily bent
a substance that speeds up a chemical reaction
when two liquids do not mix
discovered the electron
a mixture containing particles that settle out

Down

shiny
the energy released from the interaction of cations and anions is called the _____
reversible reactions have a _____
a solid produced during a chemical reaction
reactions that require energy
C3H8
the ability of a substance to dissolve in a solvent and form a solution
the most probable location of an electron
the change in heat of the products from the reactants
the concave surface of a liquid
the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist

20 Clues: C3H8 • shiny • easily bent • discovered the electron • when two liquids do not mix • reactions that require energy • the concave surface of a liquid • reversible reactions have a _____ • discovered the nucleus of an atom • the most probable location of an electron • a solid produced during a chemical reaction • packets of light given off by excited atoms • ...

Ahna Granger Crossword 2024-04-26

Across

what determines the atomic number
his gas law explains pressure decreases with temperature decrease
what is matter composed of
atoms that do not have 8 valence electrons are__
bond where electrons are shared to fill valence level
these gain electrons in chemical reactions
solution not capable of being dissolved is ___
bond resulting in cations and anions
a mixture that is not uniform
rules for digits used in chemical equations

Down

heat is released in a ___ reaction
his gas law explains how gasses expand when heated
phase changing from solid to gas
how strongly an atom attracts an electron
atom having 8 valence electrons
solution capable of being dissolved
phase changing from gas to solid
heat is absorbed in a ___ reaction
his gas law explains volume decreases with increasing pressure
these loose electrons in chemical reactions

20 Clues: what is matter composed of • a mixture that is not uniform • atom having 8 valence electrons • phase changing from solid to gas • phase changing from gas to solid • what determines the atomic number • heat is released in a ___ reaction • heat is absorbed in a ___ reaction • solution capable of being dissolved • bond resulting in cations and anions • ...

Matter 2024-05-09

Across

a physical property, shiny or dull
a chemical property, slow reaction of metals (rust)
a solid that dissolves in a liquid
a chemical property, very rapid reaction (fire)
a physical property, thickness of liquids
found on the left side of the chemical equation
a physical property, shatters easily
a physical property, can be hammered into shapes
like CO2 and H2O
118 of them found on the Periodic Table

Down

a solute and a solvent (ex: salt water)
a solid that forms in a liquid
a physical property (transparent/opaque)
the liquid that dissolves makes a solution
a physical property, resistance to scratch/dent
a physical property, pulled into wire (copper/gold)
like suspension, gels, foams emulsions
they are found on the right side of Chem. eqation
the amount of space taken up by something
has mass and takes up space

20 Clues: like CO2 and H2O • has mass and takes up space • a solid that forms in a liquid • a physical property, shiny or dull • a solid that dissolves in a liquid • a physical property, shatters easily • like suspension, gels, foams emulsions • a solute and a solvent (ex: salt water) • 118 of them found on the Periodic Table • a physical property (transparent/opaque) • ...

Chemistry, Physics, and Energy. 2023-06-05

Chemistry, Physics, and Energy. crossword puzzle

Across

the basic unit of a element
Energy in Motion
the most reactive group on the periodic table
Table of elements organized by atomic #
electrons How are the groups on the periodic table sorted
The first element in the periodic table
Energy possessed by a position
The unit for work or energy.
a change in the size or shape of a substance
work divided by time equals _______?

Down

Makes a new substance
the amount of elements on the periodic table
the amount of groups in the periodic table
The transfer of energy by one object touching another.
The transfer of energy using electromagnetic waves and photons.q
a substance made up of two or more elements
opposite of a proton
Unit of force named after a scientist
Chemical reaction that MAKES heat
Chemical reactions that ABSORBS heat

20 Clues: Energy in Motion • opposite of a proton • Makes a new substance • the basic unit of a element • The unit for work or energy. • Energy possessed by a position • Chemical reaction that MAKES heat • Chemical reactions that ABSORBS heat • work divided by time equals _______? • Unit of force named after a scientist • Table of elements organized by atomic # • ...

Energy Flow Vocabulary 2026-02-18

Across

result of a chemical reaction
"ingredient" needed for a chemical reaction
molecule made of one carbon atom and two oxygen atoms
the process plants use to change light energy into chemical energy
what is transferred from one trophic level to the next
third level consumer
where the LD rxn takes place
pigment that makes plants green
consumer that eats both plants and meat
organelle where cellular respiration happens
another name for heterotroph
second level consumer
first level consumer

Down

__ transport chain
another name for autotroph
consumer that only eats plants
organelle where photosynthesis happens
another name for decomposer
percent of energy that is lost between trophic levels
any living thing
where the LI rxn takes place
sugar made by photosynthesis
process some organisms use to make food using chemicals instead of sunlight
consumer that eats only meat

24 Clues: any living thing • __ transport chain • third level consumer • first level consumer • second level consumer • another name for autotroph • another name for decomposer • where the LD rxn takes place • where the LI rxn takes place • sugar made by photosynthesis • another name for heterotroph • consumer that eats only meat • result of a chemical reaction • consumer that only eats plants • ...

chemistry bonus 2024-04-29

Across

mass of an atom
acts a catalyst
releases heat
an atoms give up electrons for another atom
an element between metals and nonmetals
nonmetallic element
positive charged ion
subtances in a chemical reaction
chemical element with atomic number 5
energy stored in bonds

Down

the unit of work or energy
solid to the gaseous state
absorbs heat
chemical element,lacks material of metal
chemical element number 7
volume at a constant temperature
the mass of the substance
molecules settle out of solution
positive electric charge
negative electric charge

20 Clues: absorbs heat • releases heat • mass of an atom • acts a catalyst • nonmetallic element • positive charged ion • energy stored in bonds • positive electric charge • negative electric charge • chemical element number 7 • the mass of the substance • the unit of work or energy • solid to the gaseous state • volume at a constant temperature • molecules settle out of solution • ...

Macromolecules and Enzyme Vocabulary Review 2023-09-14

Macromolecules and Enzyme Vocabulary Review crossword puzzle

Across

reactant found in cells that binds to an enzyme in order to become a product
general term for something that speeds up a chemical reaction
changing one set of chemicals into another; has reactant(s) and product(s)
protein that acts as a biological catalyst; suffix is usually -ase
macromolecule made of CHONP; composed of nucleotides
the amount of energy needed to start a chemical reaction; gets lowered by enzymes to speed up the chemical reaction
monomer for nucleic acids; made of a phosphate, sugar, and nitrogen base

Down

monomer for carbohydrates; ex. glucose, fructose
macromolecule made of CHO; composed of monosaccharides; suffix is usually -ose
chemical compound made up of many single units joined together
macromolecule made of CHO; composed of glycerol connected to fatty acid chains
long hydrocarbon chain; component of lipids
monomer for proteins; made of an amino group, carboxylic acid group, and R-side chain attached to a central carbon atom
large molecule found in all living things
single unit
macromolecule made of CHON; composed of amino acids

16 Clues: single unit • large molecule found in all living things • long hydrocarbon chain; component of lipids • monomer for carbohydrates; ex. glucose, fructose • macromolecule made of CHON; composed of amino acids • macromolecule made of CHONP; composed of nucleotides • general term for something that speeds up a chemical reaction • ...

Chloe Smith Crossword 2021-12-02

Across

What type of reaction is this? AB = A + B
in an ____ reaction there is a net absorption of energy
A new ______ indicates a chemical change
bond energy is also known as ____ energy
Which is more acidic? Lemon juice or water? If the answer is lemon juice write lemon if the answer is water write water.
What is the pH of water?

Down

What type of reaction is this? A + B = AB
A change in _____ indicates a chemical change
in an ____ reaction there is a net release of energy
What is a substance that lowers the activation energy of a chemical reaction?

10 Clues: What is the pH of water? • A new ______ indicates a chemical change • bond energy is also known as ____ energy • What type of reaction is this? A + B = AB • What type of reaction is this? AB = A + B • A change in _____ indicates a chemical change • in an ____ reaction there is a net release of energy • in an ____ reaction there is a net absorption of energy • ...

Part 1: Crossword 2017-03-30

Across

We balance a chemical equation by using the smallest, whole number ____________.
In 1 ____ of particles there are 6.022 times 10 to the 23rd power particles.
The chemical that lost electrons in a chemical reaction was ___________.
A chemical used up during the reaction.
A type of chemical reaction in which one of the reactants is molecular oxygen.

Down

Reaction that absorbs energy from the surroundings.
Mass of exactly 1 mol of a chemical (2 words)
A type of chemical reaction in which a single reactant forms two or more products.

8 Clues: A chemical used up during the reaction. • Mass of exactly 1 mol of a chemical (2 words) • Reaction that absorbs energy from the surroundings. • The chemical that lost electrons in a chemical reaction was ___________. • In 1 ____ of particles there are 6.022 times 10 to the 23rd power particles. • ...

Stiochiometry Cross Word 2022-11-28

Stiochiometry Cross Word crossword puzzle

Across

a reaction that occurs when chemical bonds are formed or broken
the relationship between qunatities of reactants and products before and after the chemical reaction.
when the same number of each type of atoms of both left and right sides of the reaction arrow
a single kind of matter that cannot be seperated into other matter by physical means.
a positive or negatively charged atom.
the empirical formula of any ionic or covalent network solid compound used as an independent entity for stiochiometric calculations.
6.02214076 . 10^23

Down

a formula giving the proportions of the elements present in a compound but not the actual numbers of arrangements of atoms.
a way to present chemical proportions of atoms that constitute a particular chemical compound or element using element symbols, numbers, etc.
a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, etc.
the mass of a substance (in grams) divided by the number of moles in a substance.
tells you by mass what percent of each element is inside a compound.
an arithmetic multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another.
a compound, usually a crystalline, in which water molecules are chemically bonded to another compound or element.
a particle of matter that uniquely defines a chemical element.
the relationship between quantities relative to substances taking part in a reaction leading to a compound

16 Clues: 6.02214076 . 10^23 • a positive or negatively charged atom. • a particle of matter that uniquely defines a chemical element. • a reaction that occurs when chemical bonds are formed or broken • tells you by mass what percent of each element is inside a compound. • the mass of a substance (in grams) divided by the number of moles in a substance. • ...

Crossword 2023-11-17

Across

Colourless, odorless, tasteless gas
A plastid that contains chlorophyll
A substance that takes part in and undergoes change during a reaction.
Nature's way of reusing carbon atoms
The process by which green plants and some other organisms use sunlight
A series of chemical reactions that break down glucose to produce ATP
Makes, grows, or supplies goods
Cause to change in form, character, or function.

Down

A colorless and non-flammable gas at normal temperature and pressure
Use light energy to make two molecules needed for the next stage of photosynthesis
An article or substance that is manufactured
A change in physical form or a nuclear reaction.
An organelle found in large numbers in most cells
C6H12O6
A soil bacterium, fungus, or invertebrate

15 Clues: C6H12O6 • Makes, grows, or supplies goods • Colourless, odorless, tasteless gas • A plastid that contains chlorophyll • Nature's way of reusing carbon atoms • A soil bacterium, fungus, or invertebrate • An article or substance that is manufactured • A change in physical form or a nuclear reaction. • Cause to change in form, character, or function. • ...

2nd 9 weeks Chemistry Test 2022-05-16

2nd 9 weeks Chemistry Test crossword puzzle

Across

A neutral group of atoms that are held together by covalent bonds
A homogeneous mixture of two or more substances uniformly dispersed throughout a single phase
The number of atoms or molecules in 1 mol
A substance or molecule that participates in a chemical reaction
The SI base unit used to measure the amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12 g of carbon-12
The measured amount of a product of a reaction
The percentage by mass of each element in a compound
The maximum amount of product that can be produced from a given amount of reactant
A substance that dissolves in water to give a solution that conducts an electric current
Composed of dissimilar components
Reactant The substance that controls the quantity of product that can form in a chemical reaction
In a solution, the substance in which the solute dissolves
An explanation for swome phenomenon that is based on observation, experimentation and reasoning
Describes two or more liquids that can dissolve into each other in various proportions
An atom or molecule that has gained or lost one or more electrons and has a negative or positive charge
A solution that cannot dissolve any more solute under the given conditions
A chemical formula wthat shows the number and kinds of atoms in a molecule but not the arrangement of the atoms
In a solution, the substance that dissolves in the solvent
An ion made of two or more atoms
A method of expressing a quantity as a number multiplied by 10 to the appropriate powere
A solution that contains less solute than a saturated solution does and that is able to dissolve additional solute

Down

The law that states that a chemical compound always contains the same elements in exactly the same proportions by weight or mass
A solution that holds more dissolved solute than is required to reeach equilibrium at a given temperature
A chemical compound whose simplest units are molecules
The ability of one substance to dissolve in another at a given temperature and pressure
An ion formed from a single atom
A substance that dissolves in water to give a solution that does not conduct an electric current
The concentration of a solution expressed in moles of solute per kilogram of solvent
The ratio of the actual yield to the theoretical yield, multiplied by 100
The ratio of the mass of a substance to the volume of the substance
The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
An ion that has a negative charge
A compound composed of ions bound together by electrostatic attraction
Describes something that has a uniform structure or composition throughout
A chemical formula that shows the composition of a compound in terms of the realtive numbers and kinds of atoms in the simplest ratio
A combination of chemical symbols and numbers to represent a substance
A representation of a chemical reaction that uses symbols to show the realtionship between the reactants and the products
A small whole number that appears as a factor in front of a formula in a chemical equation
A substance that forms in a chemical reaction
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
A mathmatical technique that allows one to use units to solve problems involving measurements
The mass in grames of 1 mol of a substance
An ion that has a positive charge
An explanation that is based on prior scientific research or observations and that can be tested

44 Clues: An ion formed from a single atom • An ion made of two or more atoms • An ion that has a negative charge • Composed of dissimilar components • An ion that has a positive charge • The number of atoms or molecules in 1 mol • The mass in grames of 1 mol of a substance • A substance that forms in a chemical reaction • The measured amount of a product of a reaction • ...

Changes in matter 2025-10-09

Across

Reaction in which heat and light are released
Law stating that total mass remains the same in a reaction
A solid formed during a chemical reaction
Reaction between an acid and a base

Down

The process in which a solid turns directly into gas
dioxide Colourless gas produced when fuels burn completely
Substances used to produce heat energy
A process where a liquid changes into vapour
Change where new substances are formed
Gas that supports combustion
Type of change where no new substance is formed
The red-brown coating formed on iron

12 Clues: Gas that supports combustion • Reaction between an acid and a base • The red-brown coating formed on iron • Substances used to produce heat energy • Change where new substances are formed • A solid formed during a chemical reaction • A process where a liquid changes into vapour • Reaction in which heat and light are released • ...

Photosynthesis/Cellular Respiration Crossword 2021-12-21

Photosynthesis/Cellular Respiration Crossword crossword puzzle

Across

an organism that cannot makes it's own food, also known as a consumer
the process in which plants use light to make energy
ATP is a form of _________________ energy
type of respiration involving oxygen
something that is produced during a chemical reaction
this makes up about 78% of the air we breathe
one of the things needed for cellular respiration
the name for the chemical symbol H20
two or more atoms held together by a chemical bond
the process by which cells break down glucose
the part of a plant that takes in carbon dioxide
this carries oxygen from our lungs to our cells
the organelle where cellular respiration primarily takes place

Down

cellular respiration begins in this part of the cell
something that undergoes a change during a chemical reaction
type of respiration not involving oxygen
nearly all energy on Earth comes from this
an organism that makes its own food, also known as a producer
one of the things needed for cellular respiration
a substance which cannot be broken down in to any other substances
the process by which food is broken down both mechanically and chemically
the basic particle from which all elements are made
dioxide, the name for the chemical symbol CO2
the "H" in H2O

24 Clues: the "H" in H2O • type of respiration involving oxygen • the name for the chemical symbol H20 • type of respiration not involving oxygen • ATP is a form of _________________ energy • nearly all energy on Earth comes from this • this makes up about 78% of the air we breathe • dioxide, the name for the chemical symbol CO2 • the process by which cells break down glucose • ...

CHEMISTRY UNIT REVIEW CROSSWORD 2017-02-12

CHEMISTRY UNIT REVIEW CROSSWORD crossword puzzle

Across

the P.T.): A numbered column on the Periodic table
rings around a nucleus that can have zero, one, or two electrons
An element that isn't a metal
letters standing for a chemical element
the P.T.): one of the Horizontal rows on the Periodic Table
A process with released heat
An electron that helps form a chemical bond
Everything is made from this.
A substance that changes during a chemical reaction
Groups of atoms bonded together
Is formed after 2 or more elements are chemically bonded

Down

Has a negative charge
the Result of a chemical reaction
States that mass is neither created nor destroyed by chemical reactions or physical transformations.
Has a neutral charge (no charge)
Has a positive charge
An element that has both properties of a metal and a nonmetal
The number of protons in a atom
The mass of a chemical elements atoms
Man who discovered the Periodic Law
The brain or powerhouse of a cell
Its made from a single type of atom and is a pure substance
A process that requires absorbed heat
A solid that is hard, shiny, malleable, fusible, and ductile
Gas: Include helium, neon, argon, krypton, xenon, and radon

25 Clues: Has a negative charge • Has a positive charge • A process with released heat • An element that isn't a metal • Everything is made from this. • The number of protons in a atom • Groups of atoms bonded together • Has a neutral charge (no charge) • the Result of a chemical reaction • The brain or powerhouse of a cell • Man who discovered the Periodic Law • ...

CHEMISTRY UNIT REVIEW CROSSWORD 2017-02-12

Across

rings around a nucleus that can have zero, one, or two electrons
Has a neutral charge (no charge)
A process that requires absorbed heat
the P.T.): one of the Horizontal rows on the Periodic Table
An electron that helps form a chemical bond
Has a negative charge
The number of protons in a atom
An element that has both properties of a metal and a nonmetal
Its made from a single type of atom and is a pure substance
The mass of a chemical elements atoms
letters standing for a chemical element
Gas: Include helium, neon, argon, krypton, xenon, and radon

Down

Man who discovered the Periodic Law
States that mass is neither created nor destroyed by chemical reactions or physical transformations.
the Result of a chemical reaction
the P.T.): A numbered column on the Periodic table
A process with released heat
Is formed after 2 or more elements are chemically bonded
An element that isn't a metal
A solid that is hard, shiny, malleable, fusible, and ductile
The brain or powerhouse of a cell
A substance that changes during a chemical reaction
Has a positive charge
Groups of atoms bonded together
Everything is made from this.

SDS and HAZARD COMMUNICATION 151 2024-07-02

SDS and HAZARD COMMUNICATION 151 crossword puzzle

Across

A chemical that causes damage to or disease in the kidneys.
Hazardous __________________ is disposable matter that poses a risk to human health or the environment.
_____________________ hazards are chemicals that are likely to catch fire or explode on their own or when exposed to water.
Any substance that may trigger or promote flammability in another substance.
A chemical that causes damage to or disease in the liver.
A chemical that causes damage to or disease in the nervous system.
A chemical that ignites or explodes spontaneously.
__________________ effect is a response to a chemical that occurs after a long period of exposure.
________________ ticket is the documentation that accompanies a group or quantity of a product.
_____________________ hazards are chemical substances that are likely to burst.

Down

_______________________ hazard is a chemical that causes damage to or disease in the skin or dermal layer.
A chemical that causes inflammation and swelling in human tissue.
A chemical that causes an allergic reaction.
A cancer-causing substance.
_________________ reaction is a response to chemical exposure that occurs suddenly or over a short period of time.
An illustration of a hazard that is intended to be understood even if the viewer cannot read.
____________________ effect is the result of a hazard that affects the entire body.
A non-reactive combination or a solution composed of two or more substances.
Industrial _____________________ is a person trained to anticipate, recognize, evaluate, and develop controls for occupational health and environmental hazards.
A scientist trained to study the nature and effects of chemicals on living organisms.
______________________ peroxide is a type of reactive hazard that can catch fire independently.
A chemical that is capable of irreparably harming living tissues or damaging material on contact.

22 Clues: A cancer-causing substance. • A chemical that causes an allergic reaction. • A chemical that ignites or explodes spontaneously. • A chemical that causes damage to or disease in the liver. • A chemical that causes damage to or disease in the kidneys. • A chemical that causes inflammation and swelling in human tissue. • ...

Rocket science crossword 2019-05-09

Rocket science crossword crossword puzzle

Across

of pressure: force
composed
force
Position
pressure
third law of motion: opposite reaction
push
Robert H. Goddard: engineer

Down

impulse: duration
tube-like
rising
chemical reaction
small rocket
von Braun: aerospace engineer

14 Clues: push • force • rising • composed • Position • pressure • tube-like • small rocket • impulse: duration • chemical reaction • of pressure: force • Robert H. Goddard: engineer • von Braun: aerospace engineer • third law of motion: opposite reaction

Chemistry Review 2017-02-08

Across

no charge
substance of two combined elements
group of atoms
Mendeleev: creator of table
negative
positive
absorbs heat
orbits around
characteristics of metal and non-metal
electron: outermost shell
shiny, foil, conductors
Structure

Down

abbreviation of element
new material formed in a chemical reaction
(on the P.T.): column of elements
the center
Table
Gas: any gasses in group 18
Motion & Chemical Reactions
everything is made of this
release of heat
undergoes change during a reaction
dull, poor conductors
substance that cannot be broken down
of Conservation of Mass: neither created nor destroyed
(on the P.T.): row of elements
& CLUE

27 Clues: Table • & CLUE • negative • positive • no charge • Structure • the center • absorbs heat • orbits around • group of atoms • release of heat • dull, poor conductors • abbreviation of element • shiny, foil, conductors • electron: outermost shell • everything is made of this • Gas: any gasses in group 18 • Motion & Chemical Reactions • Mendeleev: creator of table • (on the P.T.): row of elements • ...

Biology key words 2024-11-15

Across

Cell part where chemical reactions occur
A microbe that causes disease
A chemical reaction that uses glucose and oxygen
A disease that can spread
A pathogen that shows up as mould
A term for when a disease is passed on

Down

The smallest pathogen
Cell part that stores DNA
Bacteria cell part that allows movement
A chemical reaction that produces glucose and oxygen
When pathogens spread through the air
Deoxyribonucleic Acid
The disease caused by HIV

13 Clues: The smallest pathogen • Deoxyribonucleic Acid • Cell part that stores DNA • A disease that can spread • The disease caused by HIV • A microbe that causes disease • A pathogen that shows up as mould • When pathogens spread through the air • A term for when a disease is passed on • Bacteria cell part that allows movement • Cell part where chemical reactions occur • ...

CROSSWORD 2022-07-20

Across

chemical reaction in which a molecule of water breaks one or more chemical bonds
The basic building block of chemistry
ALSO KNOWN AS CAUSTIC SODA
a chemical reaction in which a more reactive element displaces a less reactive element from its compound
reaction a reaction in which electrons are consumed

Down

an aqueous solution of hydrogen chloride
reactions in which an element combines with oxygen
an elimination reaction which removes a hydrogen halide from a substrate
also called carbolic acid
the process of combining an organic acid (RCOOH) with an alcohol (ROH) to form an ester (RCOOR) and water

10 Clues: also called carbolic acid • ALSO KNOWN AS CAUSTIC SODA • The basic building block of chemistry • an aqueous solution of hydrogen chloride • reactions in which an element combines with oxygen • reaction a reaction in which electrons are consumed • an elimination reaction which removes a hydrogen halide from a substrate • ...

SCIENCE 2018-11-21

Across

the most reactive non-metals
numerical prefix for five
a kind of change when a material changes state, (or appearance), but does not change composition. This process is reversible.
a chemical reaction that occurs when oxygen reacts to another substance to create a new one
smallest particle of matter with a negative charge
numerical prefix for two
can be easily separated
a kind of change where the reactants either create or turn into a new substance. This process is not reversible.
smallest particle of matter with a positive charge
an element that has metallic and non-metallic properties
the positively charged centre of an atom, made up of neutrons and protons
can be made into thin strands of wire
the smartest part of an element that is representative of that element, a neutral particle made up of protons, neutrons and electrons

Down

pure substance
a substance that helps speed up the rate of reaction between reactants
a chemical combination of two or more elements in a specific ratio
an organic catalyst
vertical groups of elements with similar properties
can not be separated easily
the new substance created in a chemical reaction
pounded or rolled into sheets
smallest particle of matter with a neutral charge
numerical prefix for one
numerical prefix for four
numerical prefix for three

25 Clues: pure substance • an organic catalyst • can be easily separated • numerical prefix for two • numerical prefix for one • numerical prefix for five • numerical prefix for four • numerical prefix for three • can not be separated easily • the most reactive non-metals • pounded or rolled into sheets • can be made into thin strands of wire • the new substance created in a chemical reaction • ...

Chemistry Review Crossword 2023-03-23

Chemistry Review Crossword crossword puzzle

Across

Table salt is also known as sodium __________
This rule says that atoms want a full valence shell
Dissolved in water
A _________ cylinder is used to measure liquids
Bonds that occur between a metal and a nonmetal
This element's symbol is Kr
An atom of this element has 26 protons
Neutral (no charge) subatomic particle
The inputs (on the left side) of a chemical reaction
This type of flask has slanted sides and can be used to swirl liquids
The number of Phosphorus atoms in a single Ca3(PO4)2 Compound
The outputs (on the right side) of a chemical reaction

Down

This element is in period 4 and group 15.
Bonds that occur between two nonmetals
A Magnesium atom _________ two VE to form an ion
a chemical ____________ is a way of writing out a chemical reaction to show the change from reactants to products
Negatively charged subatomic particle
This type of model shows all of an atom's electrons
Always wear these in the lab to protect your eyes.
Atoms of the same element with different atomic masses are called __________
These electrons are in the outermost energy level
Positively charged subatomic particle
An ion is an atom with a net _____________
The weight of an atom is the sum of the number of protons and the number of ______________

24 Clues: Dissolved in water • This element's symbol is Kr • Negatively charged subatomic particle • Positively charged subatomic particle • Bonds that occur between two nonmetals • An atom of this element has 26 protons • Neutral (no charge) subatomic particle • This element is in period 4 and group 15. • An ion is an atom with a net _____________ • ...

enzyme study game 2020-10-23

Across

when an enzyme changes its shape to bind with a substrate
are enzymes reusable?
enzymes that break down proteins into amino acid
the amount of enzymes/substrates
what makes a substrate unique?
enzymes typically end in these three letters
the chemical processes that occur within a living organism in order to maintain life
does an enzyme raise or lower activation energy?
where the substrate binds to the enzyme

Down

multiple monomers joined together
elements or compound produced by a chemical reaction
the function of an enzyme
modifying the molecular structure of a protein
biomolecule with amino acid as a monomer
carbohydrate found the cell wall of plants
the sugar found in dairy
the monomer of nucleic acid
used to store long term energy
enzymes speed up chemical ______
the breakdown of complex molecules within an organism to form simpler ones
element or compound that enters a reaction

21 Clues: are enzymes reusable? • the sugar found in dairy • the function of an enzyme • the monomer of nucleic acid • what makes a substrate unique? • used to store long term energy • the amount of enzymes/substrates • enzymes speed up chemical ______ • multiple monomers joined together • where the substrate binds to the enzyme • biomolecule with amino acid as a monomer • ...

A Clue in the Note 2023-04-19

Across

Positively charged ion
Mass per volume of a substance
Repeating trends in elements properties
Tendency to attract electrons
Starting substance in a chemical reaction
Nonreactive gases
Has a pH less than 7
Bond with shared electrons
Developed an early model of the atom
Elements bonded with themselves, O2

Down

The ability of a material to be stretched into a long wire
The outermost shell of electrons
12C and 13C
The center of an atom
Negatively charged particle
Gold foil experiment director
A chemical substance that cannot be broken down
Properties of both metals and nonmetals
The smallest particle of an element
Group having seven valence electrons
Positively charged particle
Substance made during a chemical reaction
Negatively charged ion
A liquid’s resistance to flow
Name of first group elements

25 Clues: 12C and 13C • Nonreactive gases • Has a pH less than 7 • The center of an atom • Positively charged ion • Negatively charged ion • Bond with shared electrons • Negatively charged particle • Positively charged particle • Name of first group elements • Gold foil experiment director • Tendency to attract electrons • A liquid’s resistance to flow • Mass per volume of a substance • ...

PLOY SCIENCE CROSSWORD 2015-01-19

Across

chemical that can speed up chemical reaction
process that food turned to energy
respiration process that doesn't has oxygen and occur for short time
breathing out
breathing in
how gas exchanged in alveolus
blood that has low oxygen concentrate and high carbon dioxide
inorganic substances that required by body in small amount
thing that aerobic respiration need and it come from digestive system
where food travel down from mouth to stomach
respiration process that energy release while oxygen occur

Down

happen when you get vitamin b1 deficiency
blood that has high concentrate of oxygen
organic substances that required by body to carry out important chemical reaction
where respiration happen in organelle
part of body where has breathing system
muscle contraction occur along length of digestive system
covered with blood vessels and where gas exchanged happen
happen when you get vitamin D deficiency
connect lungs to trachea

20 Clues: breathing in • breathing out • connect lungs to trachea • how gas exchanged in alveolus • process that food turned to energy • where respiration happen in organelle • part of body where has breathing system • happen when you get vitamin D deficiency • happen when you get vitamin b1 deficiency • blood that has high concentrate of oxygen • ...

Science Crossword 2014-10-22

Across

all the same
the shininess of an object
the ability to be harmed without shattering
the force where objects are attracted or repelled to one another
the act of solving a problem
the ability not to be scratched
change in physical properties
all different
be able to transfer heat or electricity
an object that resists a change in motion
under go chemical reaction

Down

chemical reaction involving rearrangement of the atoms
cannot be separated into simpler substance
the smallest component of an element
a liquids resistance to move
changing from solid to liquid or gas
the state of being suspended
to filter
evaporating and condensing of a liquid
can be pulled into long thin wires
composed of 2 or more parts
the amount of matter in a certain volume
settles out on standing scatters light

23 Clues: to filter • all the same • all different • the shininess of an object • under go chemical reaction • composed of 2 or more parts • a liquids resistance to move • the act of solving a problem • the state of being suspended • change in physical properties • the ability not to be scratched • can be pulled into long thin wires • the smallest component of an element • ...

Science Crossword 2014-10-22

Across

the force where objects are attracted or repelled to one another
all the same
the state of being suspended
cannot be separated into simpler substance
chemical reaction involving rearrangement of the atoms
under go chemical reaction
evaporating and condensing of a liquid
settles out on standing scatters light
composed of 2 or more parts
an object that resists a change in motion

Down

a liquids resistance to move
the ability not to be scratched
the smallest component of an element
be able to transfer heat or electricity
changing from solid to liquid or gas
all different
the amount of matter in a certain volume
change in physical properties
the ability to be harmed without shattering
to filter
can be pulled into long thin wires
the act of solving a problem
the shininess of an object

23 Clues: to filter • all the same • all different • under go chemical reaction • the shininess of an object • composed of 2 or more parts • a liquids resistance to move • the state of being suspended • the act of solving a problem • change in physical properties • the ability not to be scratched • can be pulled into long thin wires • the smallest component of an element • ...

Science Crossword 2014-10-22

Across

the amount of matter in a certain volume
settles out on standing scatters light
under go chemical reaction
composed of 2 or more parts
change in physical properties
the act of solving a problem
the state of being suspended
the shininess of an object
be able to transfer heat or electricity
the smallest component of an element
to filter
the ability to be harmed without shattering
an object that resists a change in motion
cannot be separated into simpler substance

Down

can be pulled into long thin wires
all different
changing from solid to liquid or gas
a liquids resistance to move
the ability not to be scratched
all the same
chemical reaction involving rearrangement of the atoms
evaporating and condensing of a liquid
the force where objects are attracted or repelled to one another

23 Clues: to filter • all the same • all different • under go chemical reaction • the shininess of an object • composed of 2 or more parts • a liquids resistance to move • the act of solving a problem • the state of being suspended • change in physical properties • the ability not to be scratched • can be pulled into long thin wires • changing from solid to liquid or gas • ...

Science menu project 2023-12-13

Across

Gets car power to un
Uses heat and thermal
Power that can be changed
Use of a reaction to produce electricity
Vibrations that reach the human ear as sound
Movement of electrons
Chemical
Particularly as measured by radiometry
Strength and vitality required for sustained physical or metal activity
To bring closer
Random bouncing atoms
The flow of electrical charge
A type of kinetic energy that travels in waves
is Sum of potential energy and kinetic energy

Down

is the process of changing energy from one form to another
Form An elastic is stored in an elastic object
Created from the vibration of atoms
Potential energy a massive object has in relation to another object
Substance that gets released when it goes through a chemical reaction
Sound and light
Energy is stored in objects as objects move faster

21 Clues: Chemical • To bring closer • Sound and light • Gets car power to un • Uses heat and thermal • Movement of electrons • Random bouncing atoms • Power that can be changed • The flow of electrical charge • Created from the vibration of atoms • Particularly as measured by radiometry • Use of a reaction to produce electricity • Vibrations that reach the human ear as sound • ...

Photosynthesis & Cellular respiration 2023-11-17

Photosynthesis & Cellular respiration crossword puzzle

Across

contains chlorophyll and in which photosynthesis takes place
ATP
chemical reactions that convert carbon dioxide and other compounds into glucose
gas produced by burning carbon and organic compounds and by respiration
radiant energy emitted by the sun
a process that involves rearrangement of the molecular structure of a substance
a glucose molecule is gradually broken down into carbon dioxide and water.
the process by which green plants and certain other organisms transform light energy into chemical energy.

Down

happens in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight
each of a number of flattened "pancakes" inside a chloroplast
fluid surrounding thylakoids in chloroplast
a simple sugar
a green pigment
the stacks of thylakoids embedded in the stroma of a chloroplast
The act of being safe in the lab while using all proper procedures
the life-supporting component of the air
the powerhouse of the cell makes ATP

17 Clues: ATP • a simple sugar • a green pigment • radiant energy emitted by the sun • the powerhouse of the cell makes ATP • the life-supporting component of the air • fluid surrounding thylakoids in chloroplast • contains chlorophyll and in which photosynthesis takes place • each of a number of flattened "pancakes" inside a chloroplast • ...

AP Chemistry Practice 2024-05-17

Across

A solution that resists changes in pH when small amounts of acid or base are added.
Constant: A numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium.
A unit of mass used to express atomic and molecular weights, defined as one-twelfth the mass of a carbon-12 atom.
The point in a titration at which the amount of titrant added is exactly enough to react with the analyte in the solution.
The average distance between the nuclei of two bonded atoms.
Attractive forces between polar molecules with permanent dipoles.
A measure of the disorder or randomness in a system.
The smallest unit of matter that retains the identity of a chemical element.
A chemical reaction in which a single compound breaks down into two or more simpler substances.
A thermodynamic quantity representing the total heat content of a system.
Substances formed from two or more elements chemically bonded together.
The average distance from the center of an atom's nucleus to the outermost electron shell.
Describes a process that absorbs heat from its surroundings.
Negatively charged subatomic particles orbiting the nucleus of an atom.
Individual steps that make up a complex reaction mechanism.
A state in which the forward and reverse reactions occur at the same rate, and the concentrations of reactants and products remain constant.
Chemical bonds formed by the sharing of electron pairs between atoms.
Attractive forces between a polar molecule and a nonpolar molecule that has been temporarily polarized.
A technique for separating mixtures based on differences in the speed at which they move through a stationary phase.
The amount of energy required to break one mole of bonds in gaseous molecules.

Down

A substance that increases the rate of a chemical reaction without being consumed in the process.
Numbers placed before reactants and products in a chemical equation to balance it.
The simplest whole-number ratio of atoms in a compound.
The distribution of electrons in an atom's electron shells and subshells.
A theory stating that chemical reactions occur when reactant molecules collide with sufficient energy and proper orientation.
A measure of an atom's ability to attract and hold onto electrons in a chemical bond.
The science of measuring the heat of chemical reactions or physical changes.
A reaction involving two reactant molecules coming together to form products.
The principle that energy cannot be created or destroyed, only transformed.
A separation of electrical charges within a molecule, resulting in a molecule having a positive end and a negative end.
A process in which substances are transformed into different substances with different properties.
The minimum amount of energy required for a chemical reaction to occur.
The ability of a material to conduct electricity.
The process of reducing the concentration of a solute in a solution, usually by adding more solvent.
The process by which one substance takes in or soaks up another substance.

35 Clues: The ability of a material to conduct electricity. • A measure of the disorder or randomness in a system. • The simplest whole-number ratio of atoms in a compound. • Individual steps that make up a complex reaction mechanism. • The average distance between the nuclei of two bonded atoms. • Describes a process that absorbs heat from its surroundings. • ...

Masons Crossword Puzzle 2024-05-15

Across

the study of the make-up of all things and how they behave
the amount of space occupied by any three-dimensional solid
anything with molecules that takes up space and can be weighed
the basic unit of a chemical element
a physical combination of two or more substances that aren't chemically joined
substance made up of different elements joined together by a chemical bond.
the ability to do work

Down

sticking together
The chemical substances which are formed due to a chemical reaction between two or more chemical substances
the degree of hotness or coldness of an object
an action taken in response to something.
a basic part of a whole
the quantity of matter within a given object.
The smallest particle of a substance that has all of the physical and chemical properties of that substance.
an attraction between atoms
the form of energy that is transferred between two substances at different temperatures

Safety Day Crossword 2023-10-17

Across

Prevents static electricity
Reaction that absorbs heat.
What's the key step before equipment maintenance
What equipment protects eyes
Device to warn of gas leaks.
A type of shower specifically for decontamination
Gas is commonly monitored in confined spaces
A practice involving the evaluation of workplace risks
Protective body wear
Controls gas flow
Material that speeds up a reaction

Down

Used to put out fires
A device to prevent excessive pressure buildup within a system
Document describes chemical properties
Material that eats away metals
Device to measure pressure
Protective eyewear
Substance prone to ignite
Unintended chemical release.
Breathing apparatus.
Who is responsible for workplace safety
Neutralizes acids

22 Clues: Neutralizes acids • Controls gas flow • Protective eyewear • Breathing apparatus. • Protective body wear • Used to put out fires • Substance prone to ignite • Device to measure pressure • Prevents static electricity • Reaction that absorbs heat. • What equipment protects eyes • Device to warn of gas leaks. • Unintended chemical release. • Material that eats away metals • ...

Chemical Bonds 2023-03-23

Across

Transfers valence electrons
Shares valence electrons
Particle #2(negative charge)
Atoms combining to form chemical compounds and bring stability to the resulting product.

Down

Atom groups which are held together with chemical bonds.
Particle #1(positive charge)
A chemical reaction occurs when a new substance is _____.
A chemical reaction occurs when Chemical bonds are______.
Particle #3(neutral charge)
Built of 3 particles

10 Clues: Built of 3 particles • Shares valence electrons • Transfers valence electrons • Particle #3(neutral charge) • Particle #1(positive charge) • Particle #2(negative charge) • Atom groups which are held together with chemical bonds. • A chemical reaction occurs when a new substance is _____. • A chemical reaction occurs when Chemical bonds are______. • ...

Mole and Stoichiometry Crossword Puzzle 2022-02-09

Mole and Stoichiometry Crossword Puzzle crossword puzzle

Across

metric measurement of volume
ratio of coefficients in a chemical equation
atoms bonded together;part of a chemical equation
what comes out of a chemical reaction
what goes into a chemical equation

Down

measuring of elements/compounds
equal amounts on both/all sides
standard unit for measuring lots of very small things
written chemical reaction
mass of a molecule

10 Clues: mass of a molecule • written chemical reaction • metric measurement of volume • measuring of elements/compounds • equal amounts on both/all sides • what goes into a chemical equation • what comes out of a chemical reaction • ratio of coefficients in a chemical equation • atoms bonded together;part of a chemical equation • standard unit for measuring lots of very small things

Mole and Stoichiometry Crossword Puzzle 2022-02-09

Across

metric measurement of volume
ratio of coefficients in a chemical equation
atoms bonded together;part of a chemical equation
what comes out of a chemical reaction
what goes into a chemical equation

Down

measuring of elements/compounds
equal amounts on both/all sides
standard unit for measuring lots of very small things
written chemical reaction
mass of a molecule

Chemistry Essentials Crossword Challenge 2023-10-09

Chemistry Essentials Crossword Challenge crossword puzzle

Across

- Basic unit of matter
- Force holding atoms together in a molecule
- Measure of the average kinetic energy of particles
- A group of atoms bonded together
- Substance with a pH level less than 7
- Homogeneous mixture of substances
- Table that organizes elements by atomic number
- Transformation of one or more substances into others
- State of matter with no fixed shape or volume
- Representation of a chemical compound

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- State of matter with a definite volume but no fixed shape
- Substance with a pH level greater than 7
- Substance formed by combining elements
- State of matter with a definite shape and volume
- Substance that speeds up a chemical reaction
- Substance consisting of one type of atom
- Process in which substances change chemically
- Substance with a distinct composition
- Large molecule made up of repeating units
- Charged particle formed by gaining or losing electrons

20 Clues: - Basic unit of matter • - A group of atoms bonded together • - Homogeneous mixture of substances • - Substance with a pH level less than 7 • - Substance with a distinct composition • - Representation of a chemical compound • - Substance formed by combining elements • - Substance with a pH level greater than 7 • - Substance consisting of one type of atom • ...

Enzymes and Enzymatic Chemical Reaction 2024-11-14

Enzymes and Enzymatic Chemical Reaction crossword puzzle

Across

Builds up molecules
Breaks down molecules
Site Enzyme’s binding region
Level Acidity or alkalinity scale
Biological protein catalysts
Proper enzyme conditions
Energy Energy to start reactions
Cellular “workers” molecules
Result of reaction

Down

Non-protein enzyme helpers
Organic enzyme helpers
Reduces enzyme activity
Molecule enzyme acts on
Amylase Starch-breaking enzyme
Enzyme loses shape/function
Fit Enzyme molds to substrate
Speeds up reactions

17 Clues: Result of reaction • Builds up molecules • Speeds up reactions • Breaks down molecules • Organic enzyme helpers • Reduces enzyme activity • Molecule enzyme acts on • Proper enzyme conditions • Non-protein enzyme helpers • Enzyme loses shape/function • Site Enzyme’s binding region • Biological protein catalysts • Cellular “workers” molecules • Fit Enzyme molds to substrate • ...

Energy Flow 2022-11-16

Across

The source of energy for use and storage at the cellular level.
A substance that takes part in and undergoes change during a reaction.
A process that involves rearrangement of the molecular or ionic structure of a substance
A region on an enzyme that binds to a protein or other substance during a reaction.
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Accompanied by the release of heat.
Relating to or promoting anabolism.

Down

To deprive of natural qualities.
The chemical processes that occur within a living organism in order to maintain life.
An article or substance that is manufactured or refined for sale.
The minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
promoting metabolic activity concerned with the breakdown of complex molecules and the release of energy within the organism.
A substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
Accompanied by or requiring the absorption of heat.

14 Clues: To deprive of natural qualities. • Accompanied by the release of heat. • Relating to or promoting anabolism. • Accompanied by or requiring the absorption of heat. • The source of energy for use and storage at the cellular level. • An article or substance that is manufactured or refined for sale. • ...

HC Unit 7 crossword 2024-01-16

Across

chemical reaction that involves the release of energy in the form of heat or light
the total heat content of a system
2 atoms slam together to form into a heavier atom
the symbol for enthalpy change
branch of chemistry concerned with he quantities of heat evolved or absorbed during chemical reactions
the transition from the solid phase to the gas phase
two substances in physical contact with each other exchange no heat energy
everything that is not directly involved in the reaction
process of measuring the amount of heat released or absorbed during a chemical reaction
the process in which liquid state changes into the vapor state

Down

show the temperature change as a substance is heated up/ cooled down
when a gas turns into a liquid
the amount of energy absorbed from one system to its surroundings
collection of objects that can be identified
chemical reactions in which the reactions absorb heat energy from the surroundings to form products
transition of a substance directly from a gas to a liquid

16 Clues: when a gas turns into a liquid • the symbol for enthalpy change • the total heat content of a system • collection of objects that can be identified • 2 atoms slam together to form into a heavier atom • the transition from the solid phase to the gas phase • everything that is not directly involved in the reaction • ...

Chemistry 2015-12-02

Across

most stable and unreactive
average mass of an element in atomic mass units
a slow chemical change that occurs when oxygen in the air reacts with a metal
description of how a substance interacts with other substances, such as acid
less reactive than alkaline metals
represents the number of atoms
pure substance formed when at least one metal and one non-metal combine
invisible negatively charged charged particle that orbits the nucleus of an atom
releases heat energy
absorbs heat energy

Down

most reactive non-metals
group of atoms acting as one
a compound formed when two non-metals combine
a chemical reaction that takes place in the cells in your body
positively charge particle of an atom
number of protons in an atom
organic catalyst
combination of symbols that represent a compound
chemical reaction that occurs when oxygen reacts with a substance to form a new substance and gives off energy
most reactive metals in the periodic table
atoms that has become electrically charged because it has lost or gained electrons
results from a chemical reaction
neutral particle of the nucleus of an atom
cloudy mixture in which tiny particles of one substance are within another and particles cannot be separated.
invisible negatively charged particle that orbits the nucleus of an atom

25 Clues: organic catalyst • absorbs heat energy • releases heat energy • most reactive non-metals • most stable and unreactive • group of atoms acting as one • number of protons in an atom • represents the number of atoms • results from a chemical reaction • less reactive than alkaline metals • positively charge particle of an atom • most reactive metals in the periodic table • ...

Biology Chapter 2 Key Terms 2021-09-10

Biology Chapter 2 Key Terms crossword puzzle

Across

The building block of matter; the smallest possible particle of an element.
A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
An attraction between two atoms as a result of sharing or transferring valence electrons.
The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
A class of simple organic compounds important in living things as a source of both energy and structure.
The tendency of energy to disperse and become less available to do work.
A substance that can produce hydroxide ions (OH-) or accept hydrogen ions (H+) in solution.
The smallest particle of a covalently bonded compound.
A substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation.
A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
acid A class of organic compounds that serve as the building blocks of proteins.
The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
A substance that can produce hydrogen ions (H+) in solution.
A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
A pure substance made of only one kind of atom.
The substances formed during a chemical reaction, usually indicated on the right-hand side of the chemical equation.
Change A change in a substance that does not change to identity of the substance (e.g., a change of form or state).

Down

Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a molecule having negative charge while others are positive.
An organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch, and cellulose.
An attraction between two atoms as a result of sharing or transferring valence electrons.
The attraction between like particles within polar substances.
A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
Change A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance
Anything occupies space and has mass
A measurement of the average speed of the particles within a substance.
The attraction of particles in one substance for particles in a different substance.
compound A covalently bonded compound containing the element carbon.
A naturally occurring catalyst, usually a protein.
The process by which one substance, the solute, is broken up into smaller pieces by and distributed within a second substance, the solvent.

29 Clues: Anything occupies space and has mass • A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The smallest particle of a covalently bonded compound. • A substance that can produce hydrogen ions (H+) in solution. • The attraction between like particles within polar substances. • ...

Key Terms 2021-09-10

Across

The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
The substances formed during a chemical reaction, usually indicated on the right-hand side of the chemical equation.
A measurement of the average speed of the particles within a substance.
change A change in a substance that does not change to identity of the substance
A pure substance made of only one kind of atom.
The attraction between like particles within polar substances.
compound A covalently bonded compound containing the element carbon.
An organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch, and cellulose.
The smallest particle of a covalently bonded compound.
A substance that can produce hydroxide ions (OH-) or accept hydrogen ions (H+) in solution.
A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
A class of simple organic compounds important in living things as a source of both energy and structure.

Down

A substance that can produce hydrogen ions (H+) in solution.
The building block of matter; the smallest possible particle of an element.
the tendency of energy to disperse and become less available to do work.
A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a molecule having negative charge while others are positive.
The physical stuff that makes up the universe. Anything that occupies space and has mass.
A substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation.
acid A class of organic compounds that serve as the building blocks of proteins.
The process by which one substance, the solute, is broken up into smaller pieces by and distributed within a second substance, the solvent.
An attraction between two atoms as a result of sharing or transferring valence electrons.
A naturally occurring catalyst, usually a protein.
The attraction of particles in one substance for particles in a different substance.
A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
change A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.

28 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The smallest particle of a covalently bonded compound. • A substance that can produce hydrogen ions (H+) in solution. • The attraction between like particles within polar substances. • compound A covalently bonded compound containing the element carbon. • ...

Science Vocab 2 2024-09-27

Across

-The building block of matter; the smallest possible particle of an element.
-A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
-An attraction between two atoms as a result of sharing or transferring valence electrons.
-The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
-A class of simple organic compounds important in living things as a source of both energy and structure.
-The tendency of energy to disperse and become less available to do work.
-A substance that can produce hydroxide ions (OH−) or accept hydrogen ions (H+) in solution.
-The smallest particle of a covalently bonded compound.
-A substance that is present before a chemical reaction and takes part in it, usually shown on the leftthand side of a chemical equation.
-A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
Acid -A class of organic compounds that serve as the building blocks of proteins.
-The ability to do work. Especially in biology, the driver of the physical and chemical process necessary for life.
-A substance that can produce hydrogen ions (H+) in solution.
-A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
-A pure substance made of only one kind of atom.
-The substances formed during a chemical reaction, usually indicated on the righthand side of a chemical equation.
Change -A change in a substance that does not change the identity of the substance (e.g., a change of form or state).

Down

-Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a molecule having negative charge while others are positive.
-An organic compound comprised of the elements carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
-A pure substance made from two or more elements that are chemically combined.
-The attraction between like particles within polar substances.
-A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
Change -A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
-The physical stuff that makes up the universe. Anything that occupies space and has mass.
-A measurement of the average speed of the particles within a substance.
-The attraction of particles in one substance for particles in a different substance.
Compound -A covalently bonded compound containing the element carbon.
-A naturally occurring catalyst, usually a protein.
-The process by which one substance, the solute, is broken up into smaller pieces by and distributed within a second substance, the solvent.

29 Clues: -A pure substance made of only one kind of atom. • -A naturally occurring catalyst, usually a protein. • -The smallest particle of a covalently bonded compound. • -A substance that can produce hydrogen ions (H+) in solution. • -The attraction between like particles within polar substances. • Compound -A covalently bonded compound containing the element carbon. • ...

The Chemical Vocab 2025-09-18

Across

scale A measure of how acidic or basic a substance is, ranging from 0 to 14.
A substance made from two or more different elements that are chemically bonded.
A molecule that is the basic building block of DNA and RNA.
Fatty, oily, or waxy compounds that are insoluble in water and store energy.
A protein that acts as a catalyst to speed up specific chemical reactions in the body.
reaction A process where substances rearrange their atoms to form new substances with different properties.
A variant of a chemical element with the same number of protons but a different number of neutrons.
energy The minimum amount of energy required to start a chemical reaction.
A pure substance made of only one type of atom that cannot be broken down chemically.
substance that donates hydrogen ions and has a pH less than 7.
A particle with a positive electrical charge located in an atom's nucleus.
A waxy, fat-like substance made by the liver that is essential for cell function.
The simplest form of a carbohydrate, or a "simple sugar".
In chemistry, a compound that contains carbon-hydrogen bonds.
The molecule that an enzyme acts upon in a chemical reaction.
A particle with a negative electrical charge that orbits an atom's nucleus in shells.
bond A chemical bond formed when two atoms share pairs of electrons.

Down

bond A weak attraction between a slightly positive hydrogen atom in one molecule and a slightly negative atom in another.
acid A large molecule, such as DNA or RNA, that carries genetic information.
Two or more atoms bonded together.
A molecule made of amino acids that is needed for the body to function properly.
Sugar molecules that serve as the body's main source of energy.
A property of a molecule that repels water.
acid The building blocks that combine to form proteins.
A property of a molecule that is attracted to and dissolves in water.
A substance that increases the rate of a chemical reaction without being consumed by the reaction.
bond A chemical bond formed by the electrical attraction between oppositely charged ions.
A substance that accepts hydrogen ions and has a pH greater than 7.
A large carbohydrate molecule composed of many monosaccharide units joined together.
A particle found in an atom's nucleus that has no electrical charge.
A very large molecule, such as a protein or nucleic acid, that is built from smaller units.
bond A chemical bond that links two amino acids together.
The basic building block of all matter, composed of protons, neutrons, and electrons.
shell An orbital path or energy level that electrons follow around an atom's nucleus.
An atom or molecule that has a net positive or negative electrical charge.

35 Clues: Two or more atoms bonded together. • A property of a molecule that repels water. • acid The building blocks that combine to form proteins. • bond A chemical bond that links two amino acids together. • The simplest form of a carbohydrate, or a "simple sugar". • A molecule that is the basic building block of DNA and RNA. • ...

Crossword Puzzle 2013-11-24

Across

Reactions tend to go to the side with the lower ________
When the rate of the forward and reverse reaction are equal
When a chemical concentration in a reaction is decreased, the equilibrium shifts to _______ it
German chemist who devised a way to make ammonia cheaply
Equilibrium Constant
When a chemical concentration in a reaction is increased, the equilibrium shifts to _______ it
Reactions tend to go to the side with the higher ________
Least random phase and not included in equilibrium constant

Down

When pressure is increased, equilibrium shifts to the side with the least number of _______
Not included in equilibrium constant
When ________ changes, the equilibrium constant changes
French scientist best known for his Principle
Quicklime
Most random phase
Does not affect equilibrium constant but speeds up reaction rate

15 Clues: Quicklime • Most random phase • Equilibrium Constant • Not included in equilibrium constant • French scientist best known for his Principle • When ________ changes, the equilibrium constant changes • Reactions tend to go to the side with the lower ________ • German chemist who devised a way to make ammonia cheaply • ...

Week 3 Cindyann Nguyen 2015-07-06

Across

another way of saying number word
the rate of a chemical reaction is measured in this per unit time
a reaction process which one or more substances are converted
an acronym you can remember the seven diatomic molecules by
a type of replacement which one element is replaced by another
represents the amount of each reactant and product
certain gases are ALWAYS found in
the amount of diatomic molecules that we have

Down

a type of replacement where two element pairs switch partners
where one compound breaks into parts
something that is produced by the reaction
something that enters into the reaction
when a CH compound reacts with oxygen
reactant particles must have enough kinetic energy to do this
according to the collision theory, reactant particles must

15 Clues: another way of saying number word • certain gases are ALWAYS found in • where one compound breaks into parts • when a CH compound reacts with oxygen • something that enters into the reaction • something that is produced by the reaction • the amount of diatomic molecules that we have • represents the amount of each reactant and product • ...

Chemical Reactions - Arav Suresh 2024-05-01

Chemical Reactions - Arav Suresh crossword puzzle

Across

A reaction in which both oxidation and reduction occur
Another name for calcium hydroxide
New substance formed after a chemical reaction.
A more reactive element displaces a less reactive element from its compound
Aerial oxidation of unsaturated fat present in food.
Addition of oxygen to the substance or the removal of hydrogen from the substance.
Reaction where heat is released
The gradual destruction of pure metals by the action of air, moisture or a chemical.

Down

One compound decomposes into two or more elements or compounds
A substance that takes part in and undergoes change during a reaction.
Type of decomposition that occurs due to heat
Type of decomposition that occurs due to photons/sunlight
Type of deposition that occurs due to the passing of electricity.
Two or more substances combine to form one compound
Reaction where heat is absorbed
Addition of hydrogen to the substance or the removal of oxygen from the subtstance.

16 Clues: Reaction where heat is absorbed • Reaction where heat is released • Another name for calcium hydroxide • Type of decomposition that occurs due to heat • New substance formed after a chemical reaction. • Two or more substances combine to form one compound • Aerial oxidation of unsaturated fat present in food. • A reaction in which both oxidation and reduction occur • ...

Atomic Structure Vocab 2017-11-09

Across

Subatomic particle with no charge
An interaction that holds atoms or ions together
The smallest unit of element
Conducts heat and electricity poorly
states that mass cannot be created or destroyed
Atom's central region
Shiny, conducts heat well
Number of protons in a nucleus of an atom
A region around the nucleus of an atom where electrons are likely to be found
A substance that forms in a chemical reaction
Sum of numbers protons and electrons

Down

A horizontal row of elements on the periodic table
A combination of chemical symbols to represent a substance
Negatively charged proton
Substance that participates in a chemical reaction
Positively charged subatomic particle
Electron in the outermost shell
Has properties of both metals and nonmetals
Arrangment of the elements in order

19 Clues: Atom's central region • Negatively charged proton • Shiny, conducts heat well • The smallest unit of element • Electron in the outermost shell • Subatomic particle with no charge • Arrangment of the elements in order • Conducts heat and electricity poorly • Sum of numbers protons and electrons • Positively charged subatomic particle • Number of protons in a nucleus of an atom • ...

Chemical Equations Crossword 2021-10-27

Chemical Equations Crossword crossword puzzle

Across

both sides equal
basic units of matter
equation with elements being added together
volume * density
anything that has mass

Down

both sides unequal
whatever is made in a chemical equation
not created or destroyed only changed
after chemical reaction
before chemical reaction

10 Clues: both sides equal • volume * density • both sides unequal • basic units of matter • anything that has mass • after chemical reaction • before chemical reaction • not created or destroyed only changed • whatever is made in a chemical equation • equation with elements being added together

Crossword Puzzle 2013-11-24

Across

Quicklime
When pressure is increased, equilibrium shifts to the side with the least number of _______
When the rate of the forward and reverse reaction are equal
chatelier French scientist best known for his Principle
When a chemical concentration in a reaction is increased, the equilibrium shifts to _______ it
Reactions tend to go to the side with the lower ________
Most random phase
German chemist who devised a way to make ammonia cheaply
Reactions tend to go to the side with the higher ________

Down

When a chemical concentration in a reaction is decreased, the equilibrium shifts to _______ it
Not included in equilibrium constant
Least random phase and not included in equilibrium constant
Does not affect equilibrium constant but speeds up reaction rate
When ________ changes, the equilibrium constant changes
Equilibrium Constant

15 Clues: Quicklime • Most random phase • Equilibrium Constant • Not included in equilibrium constant • When ________ changes, the equilibrium constant changes • chatelier French scientist best known for his Principle • Reactions tend to go to the side with the lower ________ • German chemist who devised a way to make ammonia cheaply • ...

Chemistry Test Review 2021-12-13

Across

shows what substances are present before and after a chemical reaction
shows the number of each type of atom(small number)
tells you how many energy levels the atom has
electricity passes through
located in the electron cloud and has a negative charge
identifies how many molecules are present
change in which no new substances are formed
electricity and heat do not pass through it

Down

determine the reactivity(stability of an element)
shatters easily
located in the nucleus and has a neutral charge
a new solid is formed
can be referred to as shiny
the elements or compounds before a chemical change
what side are metal properties found
new substances formed after a chemical reaction
not shiny
can be bent or hammered into sheet
located in the nucleus and has a positive charge
can be pulled into a wire

20 Clues: not shiny • shatters easily • a new solid is formed • can be pulled into a wire • electricity passes through • can be referred to as shiny • can be bent or hammered into sheet • what side are metal properties found • identifies how many molecules are present • electricity and heat do not pass through it • change in which no new substances are formed • ...

Terms and Clues 2019-06-12

Across

When a pair of electrons is shared between two atoms to follow the octet rule.
The temperature at which a given solid will melt.
A set of chemical symbols showing the elements present in a compound and their relative properties
Positively charged ions
A starting substance in a chemical reaction
An equation in which each side has the same number of atoms of each element
Two or more substances combine to form a single substance
Two compounds exchange ions and form two new compounds.
A charged chemical species composed of two or more atoms covalently bonded
A liquid or gel that contains ions that can be decomposed by electrolysis
A reaction in which oxygen reacts with another substance, often producing carbon dioxide and water
The symbol aq indicates a substance is dissolved in….
In the Modern Model of the atom, each energy level is divided into smaller sublevels orbitals.
Solution is water

Down

A single compound breaks down into 2 or more simpler substances
Matter cannot be created or destroyed, it can only be changed.
A representation of a chemical reaction
A new substance formed in a chemical reaction
Two protons and two neutrons
A whole number that appears before a formula in an equation
Process of splitting a nucleus into two nuclei with smaller masses.
Outer shell electron associated with an atom
Negatively charged ions
Combine two light nuclei to make an atom with a heavier nucleus
High-speed electron that is emitted.
Formulas indicating that the chemicals were involved in the same equation
A group of atoms bonded together
Atoms or groups of atoms with a charge
Atoms give away or accept electrons from one another to follow the Octet Rule.
When the valence energy of an atom contains 8 electrons

30 Clues: Solution is water • Positively charged ions • Negatively charged ions • Two protons and two neutrons • A group of atoms bonded together • High-speed electron that is emitted. • Atoms or groups of atoms with a charge • A representation of a chemical reaction • A starting substance in a chemical reaction • Outer shell electron associated with an atom • ...

Chemistry Crossword 2015-11-17

Across

chemical reaction that absorbs heat energy.
most reactive non-metal.
an experiment preformed in an area where reactant or products aren't accounted for.
the ability of a substance to conduct electricity or heat.
the change in which a new substance is created and there is a new substance is created.
slow chemical change that occurs when oxygen in the air reacts with a metal.
part of the atom that is the middle and contains neutrons and the mass of the element.
the chart or table of which all known elements are on.
an alchemist that discovered the plaster of Paris.
a cloudy mixture, but the particles of the suspended substance are so small that they cannot be easily separated from the other substance.
the man that made the first theory on the atom and what is was.
a Russian scientist that found a way to organize he element into a table.

Down

a law in which mass of the reactants equals the mass of the products.
the two substances that react to form a new substance.
the change in which the substance changes state.
the vertical column in the periodic table of elements.
substance that helps with a chemical reaction speed up.
part of an atom that can be lost or gained depending on the element.
the new substance made after a chemical reaction.
a compound that contains two non-metal elements.
a compound that contains one metal element and one non-metal element.
an experiment preformed in an area where all reactants and products are accounted for.
chemical reaction that releases heat energy.
a pseudo-science that involves magic and science.
metals most reactive metals.
a catalyst that is found in our saliva, which helps with the break down of food.

26 Clues: most reactive non-metal. • metals most reactive metals. • chemical reaction that absorbs heat energy. • chemical reaction that releases heat energy. • the change in which the substance changes state. • a compound that contains two non-metal elements. • the new substance made after a chemical reaction. • a pseudo-science that involves magic and science. • ...

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