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Introduction to Chemical Reactions

Total soal: 19

Worksheet time: 10mins

Nama
Kelas
Tanggal
1.

True or False

Sodium acetate is the chemical name for baking soda.

a)

True

b)

False

2.

True or False

An aqueous solution is a mixture with water.

a)

True

b)

False

3.

In a chemical reaction, the chemicals at the start of the reaction are called the _____.

a)

products

b)

reactants

c)

starters

d)

compounds

4.

In a chemical reaction, the chemicals that are made at the end of the reaction are called the _____.

a)

reactants

b)

products

c)

starters

d)

enders

5.

The chemical formula for baking soda is _____.

a)

NaHCO3

b)

CH3COOH

c)

H2O

d)

CO2

6.

The chemical name for vinegar is _____.

a)

sodium bicarbonate

b)

carbon dioxide

c)

acetic acid

d)

sodium acetate

7.

The chemical formula for vinegar is ______.

a)

NaHCO3

b)

CH3COOH

c)

CO2

d)

H2O

8.

The reactants in "The Exploding Lunch Bag" are ______ and _____. Select 2 answers.

a)

sodium bicarbonate

b)

sodium acetate

c)

carbon dioxide

d)

acetic acid

9.

The products in the chemical reaction in "The Exploding Lunch Bag" experiment are _____, ____, and ____. More than one answer is correct.

a)

sodium acetate

b)

sodium chloride

c)

water

d)

carbon dioxide

10.

A _____ is a chemical change when reactants change to become different products.

a)

chemical change

b)

chemical reaction

c)

chemical equation

d)

chemistry

11.

True or False

Chemical equations use symbols and formulas to represent chemical reactions.

a)

True

b)

False

12.

In a chemical equation, (s) represents a(n) _____.

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

13.

In a chemical equation, (l) represents a(n) _____.

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

14.

In a chemical equation, (g) represents a(n) _____.

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

15.

In a chemical equation, (aq) represents a(n) _____.

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

16.

In a chemical equation, the arrow ( \rightarrow  ) means ______. More than one answer may be right.

a)

plus

b)

reacts with

c)

becomes

d)

yields

17.

In a chemical equation, the +  means ______. More than one answer may be right.

a)

plus

b)

reacts with

c)

becomes

d)

yields

18.

A _______ represents a chemical reaction.

a)

chemical symbol

b)

chemical formula

c)

chemical equation

d)

chemical reactant

19.

True or False

An aqueous solution is a mixture of chemicals with oil.

a)

True

b)

False