Chapter 21: Chemical Reactions

studied byStudied by 4 people
5.0(1)
get a hint
hint

Copper

1 / 38

39 Terms

1

Copper

________ is another metal that corrodes when it is exposed to air, forming a blue- green coating called a patina.

New cards
2

Atoms

________ are rearranged but never lost or destroyed.

New cards
3

Coefficients

________: represent the number of units of each substance taking part in a reaction.

New cards
4

Catalyst

________: a substance that speeds up a chemical reaction without being permanently changed itself.

New cards
5

Rust

________ can seriously damage iron structures because it crumbles and exposes more iron to the air.

New cards
6

Reduction

________: describes the gain of electrons.

New cards
7

Oxidation

________: describes the loss of electrons.

New cards
8

Electricity

________ is often used to supply energy to endergonic reactions.

New cards
9

Reactants

________: The substances that react.

New cards
10

Double Displacement Reaction

________: the positive ion of one compound replaces the positive ion of the other to form two new compounds.

New cards
11

Inhibitors

________: used to slow down a chemical reaction.

New cards
12

Precipitate

________: an insoluble compound that comes out of solution during this type of reaction.

New cards
13

Single Displacement Reaction

________: When one element replaces another element in a compound.

New cards
14

Endergonic Reactions

________: A chemical reaction that requires more energy to break bonds than is released when new ones are formed.

New cards
15

Exothermic reactions

________ provide most of the power used in homes and industries.

New cards
16

Exergonic Reactions

________: Chemical reactions that release energy.

New cards
17

total mass

The ________ of the products always equals the ________ of the reactants.

New cards
18

decomposition reaction

A(n) ________ is just the reverse of a synthesis.

New cards
19

Chemical Reaction

________: a change in which one or more substances are converted into new substances.

New cards
20

Combustion reactions

________ also produce one or more products that contain the elements in the reactants.

New cards
21

Chemical equations

________ make it easier to calculate the quantities of reactants that are needed and the quantities of products that are formed.

New cards
22

double displacement reaction

A(n) ________ takes place if a precipitate, water, or a gas forms when two ionic compounds in solution are combined.

New cards
23

Decomposition Reaction

________: occurs when one substance breaks down, or decomposes, into two or more substances.

New cards
24

Chemical Reaction

a change in which one or more substances are converted into new substances

New cards
25

Reactants

The substances that react

New cards
26

Products

The new substances produced

New cards
27

Chemical Equation

a way to describe a chemical reaction using chemical formulas and other symbols

New cards
28

Coefficients

represent the number of units of each substance taking part in a reaction

New cards
29

Balanced Chemical Equation

has the same number of atoms of each element on both sides of the equation

New cards
30

Combustion Reaction

occurs when a substance reacts with oxygen to produce energy in the form of heat and light

New cards
31

Synthesis Reaction

two or more substances combine to form another substance

New cards
32

Decomposition Reaction

occurs when one substance breaks down, or decomposes, into two or more substances

New cards
33

Single-Displacement Reaction

When one element replaces another element in a compound

New cards
34

Double-Displacement Reaction

the positive ion of one compound replaces the positive ion of the other to form two new compounds

New cards
35

Precipitate

an insoluble compound that comes out of solution during this type of reaction

New cards
36

Oxidation

describes the loss of electrons

New cards
37

Reduction

describes the gain of electrons

New cards
38

Catalyst

a substance that speeds up a chemical reaction without being permanently changed itself

New cards
39

Inhibitors

used to slow down a chemical reaction

New cards

Explore top notes

note Note
studied byStudied by 15 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 17 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 14 people
Updated ... ago
4.5 Stars(2)
note Note
studied byStudied by 13 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 53325 people
Updated ... ago
4.9 Stars(282)

Explore top flashcards

flashcards Flashcard20 terms
studied byStudied by 20 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard21 terms
studied byStudied by 1 person
Updated ... ago
5.0 Stars(1)
flashcards Flashcard70 terms
studied byStudied by 28 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard54 terms
studied byStudied by 37 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard126 terms
studied byStudied by 27 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard54 terms
studied byStudied by 5 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard36 terms
studied byStudied by 14 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard246 terms
studied byStudied by 15 people
Updated ... ago
4.0 Stars(1)