Reaction Types

Question 1

What type of reaction combines two or more substances to form a single product?

Answer 1

Synthesis reaction

Question 2

True or False: a decomposition reaction the opposite of a synthesis reaction

Answer 2

True

Question 3

What is the general form of a synthesis reaction?

Answer 3

A + B → AB

Question 4

In a decomposition reaction, what happens to a single compound?

Answer 4

It breaks down into two or more simpler substances.

Question 5

What is the general form of a decomposition reaction?

Answer 5

AB → A + B

Question 6

Which type of reaction involves the replacement of one element in a compound by another element?

Answer 6

Single replacement reaction

Question 7

What is the general form of a single replacement reaction?

Answer 7

A + BC → AC + B

Question 8

In a double replacement reaction, what occurs?

Answer 8

The anions and cations of two different compounds exchange places.

Question 9

What is the general form of a double replacement reaction?

Answer 9

AB + CD → AD + CB

Question 10

What type of reaction is characterized by the burning of a substance in the presence of oxygen?

Answer 10

Combustion reaction

Question 11

What is produced in a complete combustion reaction?

Answer 11

Carbon dioxide and water

Question 12

What is the general form of a combustion reaction?

Answer 12

C_xH_y + O_2 → CO_2 + H_2O

Question 13

What type of reaction occurs when an acid and a base react to form water and a salt?

Answer 13

Neutralization reaction

Question 14

Is water always a product of a neutralization reaction? (True/False)

Answer 14

True

Question 15

What is the general form of a neutralization reaction?

Answer 15

Acid + Base → Salt + Water

Question 16

What is an example of a synthesis reaction?

Answer 16

2H₂ + O₂ → 2H₂O

Question 17

What is an example of a decomposition reaction?

Answer 17

2H₂O → 2H₂ + O₂

Question 18

What is an example of a single replacement reaction?

Answer 18

Zn + 2HCl → ZnCl₂ + H₂

Question 19

What is an example of a double replacement reaction?

Answer 19

NaCl + AgNO₃ → NaNO₃ + AgCl

Question 20

What is an example of a combustion reaction?

Answer 20

CH₄ + 2O₂ → CO₂ + 2H₂O

Question 21

What is an example of a neutralization reaction?

Answer 21

HCl + NaOH → NaCl + H₂O

Question 22

What type of reaction is represented by the equation 3H₂ + N₂ → 2NH₃?

Answer 22

Synthesis reaction

Question 23

Which reaction type typically involves a metal and an acid?

Answer 23

Single replacement reaction

Question 24

Is it possible for a single replacement reaction to occur with nonmetals? (True/False)

Answer 24

True

Question 25

What is formed as a result of a neutralization reaction between hydrochloric acid and sodium hydroxide?

Answer 25

Sodium chloride and water

Question 26

What is the primary driving force behind a double replacement reaction?

Answer 26

Formation of a precipitate, gas, or water

Question 27

What happens during the combustion of hydrocarbons?

Answer 27

They react with oxygen to produce carbon dioxide and water.

Question 28

What are the products of incomplete combustion?

Answer 28

Carbon monoxide and/or soot, along with water.

Question 29

Which type of reaction is often used in batteries?

Answer 29

Single replacement reaction

Question 30

What do you call a reaction that releases energy in the form of heat?

Answer 30

Exothermic reaction

Question 31

In which type of reaction do the reactants and products have the same number of atoms of each element?

Answer 31

All types of reactions (synthesis, decomposition, single replacement, double replacement, combustion, neutralization)

Question 32

What is a common indicator of a chemical reaction?

Answer 32

Color change, gas production, or precipitate formation.

Question 33

What do you call a reaction that absorbs energy?

Answer 33

Endothermic reaction

Question 34

In a combustion reaction, what is necessary for the reaction to occur?

Answer 34

Oxygen

Question 35

What type of reaction can be represented by the equation AB + CD → AD + CB?

Answer 35

Double replacement reaction

Question 36

In a synthesis reaction, what is the relationship between the number of reactants and products?

Answer 36

There are more reactants than products.

Question 37

What is the result of a neutralization reaction between an acid and a carbonate?

Answer 37

Salt, water, and carbon dioxide.