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CONC CHEMISTRY B

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

A reaction in which two or more substances combine to form a single new substance?

a)

Combustion reaction

b)

Decomposition reaction

c)

Theoretical yield

2.

A reaction in which a compound breaks down into two or more simpler substances?

a)

Decomposition reaction

b)

Single-replacement reaction

c)

Double-replacement reaction

3.

What is Avogadro's number?

a)

6.02

b)

1 mole

c)

3.14

4.

Mass of 1 mole of an element of compound

a)

Molar mass

b)

6.02

c)

Atomic number

5.

What is the calculation of quantities in chemical equations called?

a)

Stoichiometry

b)

Thermochemistry

c)

Endothermic process

6.

The maximum amount of product that can be produced

a)

Theoretical yield

b)

Percent yield

c)

actual yield

7.

Chemical reaction between an acid and a base to produce a more neutral solution?

a)

Neutralization

b)

Mass

c)

Base

8.

What number is a neutral ph?

a)

7

b)

14

c)

5

9.

A type of chemical reaction that involves the transfer of electrons between two species

a)

Redox reaction

b)

Combustion

c)

Single-replacement

10.

What is the oxidation number of an atom in a pure element?

a)

0

b)

3

c)

8

11.

the study of compounds containing Carbon

a)

Organic chemistry

b)

Thermochemistry

c)

Exothermic process

12.

have at least one double or triple carbon-carbon bond.

a)

Unsaturated Hydrocarbon

b)

Saturated Hydrocarbon

c)

Alkyl group

13.

The spontaneous emission of particle or energy from unstable nuclei of radioisotopes.

a)

Radioactivity

b)

Radioisotope

c)

Radionomy

14.

What are three types of radiation?

a)

Alpha

b)

Gamma

c)

Alpha emission

d)

Beta

15.

Energy from the surroundings is absorbed by the system

a)

Endothermic process

b)

Exothermic process

c)

System

16.

Energy from the system is released into the surroundings

a)

Exothermic process

b)

Endothermic process

c)

Calorie

17.

A measure of how much the volume of matter decreases under pressure

a)

Compressibility

b)

Ideal gas law

c)

Combined gas law

18.

What is the symbol for number of moles

a)

n

b)

T

c)

V

19.

What is the charge on a gamma ray

a)

None

b)

+3

c)

-3

20.

As the temperature of a fixed volume of a gas increases, what will happen to the pressure?

a)

Increase

b)

Decrease

c)

Stay the same