Quiz about Chemistry Year Review

Question 1

An ionic bond is formed between

Accepted Answer

a metal and a nonmetal

Answer

2 nonmetals

Answer

2 metals

Answer

2 polar molecules

Question 2

What is the formula for magnesium chloride?

Accepted Answer

MgCl2

Answer

MgCl

Answer

Mg2Cl

Answer

Mg(ClO₃)₂

Question 3

This substance is always only made up of one type of atom:

Accepted Answer

Element

Answer

Compound

Answer

Mixture

Answer

Molecule

Question 4

What is the atomic number?

Accepted Answer

8

Answer

16

Answer

0

Question 5

Name the compound CuSO₄:

Accepted Answer

copper sulfate

Answer

copper sulfide

Answer

sodium oxide

Answer

calcium carbonate

Question 6

Which side of a chemical equation is the product side?

Accepted Answer

Right (after the yields sign)

Answer

Left (before the yields sign)

Question 7

How many protons in a neutral lithium atom?

Accepted Answer

3

Answer

7

Answer

4

Answer

1

Question 8

How many electrons in a neutral lithium atom?

Accepted Answer

3

Answer

7

Answer

4

Answer

1

Question 9

How many electrons in a lithium ion (Li⁺¹)?

Accepted Answer

2

Answer

3

Answer

7

Answer

4

Question 10

How many protons in a lithium ion (Li⁺¹)?

Accepted Answer

3

Answer

7

Answer

4

Answer

2

Question 11

Total number of ______ is equal to the atomic number of an element.

Accepted Answer

protons

Answer

protons and neutrons

Answer

neutrons

Answer

electrons

Question 12

Where are valence electrons found?

Accepted Answer

in the outermost electron shell

Answer

in the innermost electron shell

Answer

in the nucleus

Answer

in the electron cloud

Question 13

What is the main type of chemical bond in sodium chloride (NaCl)?

Accepted Answer

Ionic bond

Answer

Covalent bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 14

Which of the following is a balanced chemical equation for the combustion of methane (CH4)?

Accepted Answer

$$\ce{CH4 + 2O2 -> CO2 + 2H2O}$$

Answer

$$\ce{CH4 + O2 -> CO2 + H2O}$$

Answer

$$\ce{CH4 + O2 -> CO + H2O}$$

Answer

$$\ce{CH4 + 2O2 -> CO2 + H2}$$

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