Free Printable Chemical Equations Quiz

1.

A chemical (a) is a force of attraction between atoms or ions that share or transfer valence electrons.

2.

Valence electrons are the basis of all chemical bonds.

a)

TRUE

b)

FALSE

3.

Complete the sentence using one of the following terms: metal, metalloid, nonmetal.

Covalent bonds form between two _______ atoms.

a)

metal

b)

metalloid

c)

nonmetal

4.

Chlorine has 7 valence electrons. Hydrogen has 1 valence electron. How many hydrogen atoms would form chemical bond(s) with one chlorine atom?

a)

7

b)

4

c)

2

d)

1

5.

In covalent bonds, atoms ___________.

a)

share electrons

b)

transfer electrons

c)

lose electrons

d)

gain electrons

6.

In a chemical reaction, the reactant undergoes __________.

a)

functional changes

b)

chemical changes

c)

structural changes

d)

all of the above

7.

The materials or compounds that are changed into new compounds in a chemical reaction are known as (a) .

8.

A compound or material formed by a chemical reaction is known as the (a) of that reaction.

9.

The process of burning means to react a substance with _________.

a)

carbon dioxide

b)

hydrogen

c)

nitrogen

d)

oxygen

10.

Silver exposed to sulfur turns black. The compound formed is _________ and is commonly referred to as tarnish

a)

silver oxide

b)

silver oxalate

c)

silver selenide

d)

silver sulfide

11.

Which is NOT a chemical reaction?

a)

a nail gradually rusting

b)

water boiling on a stove

c)

mold growing on a piece of cheese

d)

burning a candle

12.

Given the word equation below: $Sodium\ +\ water\ \rightarrow\ sodium\ hydroxide\ +\ hydrogen$

What are the reactant(s)?

a)

sodium and water

b)

sodium and sodium hydroxide

c)

sodium hydroxide and hydrogen

d)

water and hydrogen

13.

Chemical reactions yield _________.

a)

products

b)

reagents

c)

reactants

d)

all of the above

14.

What is the "major drawback" to using word equations?

a)

Word equations are not quantitative (means how much of something).

b)

Words are not specific enough to identify chemicals

c)

word equations can't be translated to other languages.

15.

$The\ \Delta\ over\ the\ arrow\ in\ the\ reaction\ is\ indicating\ _{ }$ _________.

a)

reactant or product in the gas state

b)

catalyst in the reaction

c)

heating the reaction

d)

reversible reactions

16.

The symbol (s) is used to denote the solid phase of a reactant or a product.

a)

TRUE

b)

FALSE

17.

True or False:

$2SO_{2\ }+\ O_2\ \rightarrow\ 2SO_3$

In the chemical reaction above, the coefficient of SO3

is 2.

a)

TRUE

b)

FALSE

18.

$What\ does\ \rightarrow\ mean\ in\ a\ chemical\ reaction?$

a)

yield

b)

equals

c)

reverses

d)

greater than

19.

Which of the following might be included in a chemical reaction?

a)

Molecules

b)

Ions

c)

Pure elements

d)

All of the above

20.

A chemical equation is balanced when it has the same number of each type of atom on both sides of the equations.

a)

True

b)

False

Chemical Equations Quiz

Total questions: 20

Worksheet time: 11mins

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