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Worksheets

Precipitation & Acid/Base Reactions

Total questions: 23

Worksheet time: 14mins

Name
Class
Date
1.

When solutions of two ionic compounds are combined and a solid forms, the process is called

a)

hydration

b)

solvation

c)

dissociation

d)

precipitation

2.

Precipitation reactions: when chemicals in a solution react to form ___

a)

a gas

b)

a liquid

c)

a solid

d)

rain

3.

What kind of substance is water particularly good at dissolving?

a)

molecular compounds

b)

fats and oils

c)

ionic compounds

d)

organic compounds

4.

When some ionic compounds form through reactions in solution, they fall out as a ___

a)

consolidated element

b)

heavy sludge

c)

dense discharge

d)

solid precipitate

5.

Ionic compounds are generally called ___

a)

distillates

b)

sediments

c)

salts

d)

coprolites

6.

Sodium chloride is commonly called ___

a)

chalk

b)

table salt

c)

baking soda

d)

limestone

7.

What is the chemical formula for silver nitrate?

a)

AgNO3

b)

Ag(NO3)2

c)

Ag2NO3

d)

Ag(NO)3

8.

Cations are ___

a)

positively charged ions

b)

negatively charged ions

c)

attracted to bar magnets

d)

repelled by bar magnets

9.

Anions are ___

a)

positively charged ions

b)

negatively charged ions

c)

attracted to bar magnets

d)

repelled by bar magnets

10.

Opposite charges attract. So cations only react with anions to form ___

a)

larger magnets

b)

new compounds

c)

charged compounds

d)

new cations and anions

11.

Sodium is a metal from the left side of the periodic table and those always form ___

a)

cations

b)

anions

c)

proton donors

d)

proton acceptors

12.

Chlorine is a gas from the right side of the periodic table, so in an ionic compound it is ___

a)

an anion

b)

a cation

c)

a proton acceptor

d)

a proton donor

13.

The reaction of sodium chloride and silver nitrate in solution forms a white precipitate of ___

a)

sodium chloride

b)

silver nitrate

c)

sodium nitrate

d)

silver chloride

14.

Elements in the same column of the periodic table often behave in ___

a)

unreliable ways

b)

similar ways

c)

different ways

d)

unison to form compounds

15.

In a molecular equation, what notation is used to indicate an ionic compound in a water-based solution?

a)

(aq) for aqueous

b)

(s) for solution

c)

(w) for water

d)

(ws) for water solution

16.

In a molecular equation, what notation is used to indicate a solid precipitate?

a)

(c) for compacted

b)

(s) for solid

c)

(p) for precipitate

d)

(sp) for solid precipitate

17.

Ions that don't participate directly in the reaction are called ___

a)

lurkers

b)

ghost followers

c)

spectator ions

d)

bystander ions

18.

When solutions of two ionic compounds are combined and a solid forms, the process is called

a)

hydration

b)

solvation

c)

dissociation

d)

precipitation

19.

acid + base -->

a)

salt + water

b)

salt + oxygen

c)

salt + carbon dioxide

20.

When an acid and a base react, a ______________ reaction takes place.

a)

Displacement

b)

Oxidation

c)

Neutralisation

d)

Transamination

21.
Complete the following reaction:
Sulphuric acid + sodium carbonate
--> 
a)
Carbon dioxide + water 
b)
calcium carbonate + water + carbon dioxide 
c)
Sodium sulphate + water + carbon dioxide 
d)
Sodium chloride + water + carbon dioxide 
22.

pH is the measure of the concentration of ______.

a)

Acids

b)

H+ ion

c)

OH- ion

d)

Bases

23.
Identify the salt in the following equation:
Zn(OH)2 + HNO3   ---> H2O  + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2