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Acids and Metal Carbonates

The reactions of acids are very important in chemistry. This worksheet looks at the reaction of metals carbonates with acids.

'Acids and Metal Carbonates' worksheet

Key stage:  KS 3

Curriculum topic:  Chemistry: Chemical Reactions

Curriculum subtopic:  Reactions of Acids with Metals

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

Metal carbonates such as calcium carbonate (chalk) react with acids to produce the gas carbon dioxide. This can be seen in the equation:

Metal carbonate + Acid Salt + Water + Carbon dioxide

 

The carbon dioxide produced can be tested for in the lab using limewater, which reacts with the carbon dioxide gas. When the limewater reacts with carbon dioxide gas it turns from colourless to milky white in colour.

 


 

The salt produced depends on the acid that is used to produce it. The table below shows the type of salts that are produced from these acids:

 

Acid Name Type of Salt
Hydrochloric Acid chloride
Sulfuric Acid sulfate
Nitric Acid nitrate

 

The name of the salts produced is better illustrated in an equation.

 

Hydrochloric Acid

Magnesium carbonate + Hydrochloric acid Magnesium chloride + Water + Carbon dioxide

MgCO3+ 2HClMgCl2 + H2O + CO2

Sulfuric Acid

Calcium carbonate + Sulfuric acid Calcium sulfate + Water + Carbon dioxide

CaCO3+ H2SO4CaSO4 + H2O + CO2

Nitric Acid

Calcium carbonate + Sulfuric acid Sodium nitrate + Water + Carbon dioxide

NaCO3+ HNO3NaNO3 + H2O + CO2

What gas is always produced when a metal carbonate reacts with an acid?

hydrogen

carbon dioxide

sulfur dioxide

methane

What is the correct chemical name of chalk?

sodium chloride

carbon dioxide

calcium carbonate

nitric acid

Which of the following compounds would react with an acid to produce carbon dioxide?

 Carbon dioxide produced No carbon dioxide produced
Sodium hydroxide
Magnesium carbonate
Sodium
Calcium hydroxide
Calcium carbonate

Which of the following reagents can be used to test for carbon dioxide gas?

Benedict's reagent

universal indicator

lime water

iodine

Which of the following is not produced in a reaction between an acid and a metal carbonate?

carbon dioxide

hydrogen

water

salt

Complete the following equation by typing the name of the missing chemical in the text box below. 

 

 metal carbonate + ___________  salt + water + carbon dioxide

Complete the following equation by selecting the name of the missing chemical from the list below:

 

 Sodium carbonate + _____________   sodium sulfate + water + carbon dioxide

hydrochloric acid

sulfuric acid

nitric acid

ethanoic acid

Complete the following equation by selecting the formula of the missing chemical from the list below.

 

 MgCO3 + ___________    Mg(NO3)2 + H2O + CO2

H2SO4

HNO3

HCl

CH3COOH

  • Question 1

What gas is always produced when a metal carbonate reacts with an acid?

CORRECT ANSWER
carbon dioxide
EDDIE SAYS
When a metal carbonate reacts with an acid, salt, water and carbon dioxide gas are produced.
  • Question 2

What is the correct chemical name of chalk?

CORRECT ANSWER
calcium carbonate
EDDIE SAYS
Calcium carbonate is the main constituent of chalk.
  • Question 3

Which of the following compounds would react with an acid to produce carbon dioxide?

CORRECT ANSWER
 Carbon dioxide produced No carbon dioxide produced
Sodium hydroxide
Magnesium carbonate
Sodium
Calcium hydroxide
Calcium carbonate
EDDIE SAYS
The clue is in the name: carbonates react with acids to produce carbon dioxide gas.
  • Question 4

Which of the following reagents can be used to test for carbon dioxide gas?

CORRECT ANSWER
lime water
EDDIE SAYS
Lime water turns from colourless to milky white in the presence of carbon dioxide gas.
Universal indicator tests the pH of a solution, Benedict's reagent tests for reducing sugars and iodine can be used to test for starch.
  • Question 5

Which of the following is not produced in a reaction between an acid and a metal carbonate?

CORRECT ANSWER
hydrogen
EDDIE SAYS
Hydrogen is not produced in this reaction, it is produced when a metal reacts with an acid.
  • Question 6

Complete the following equation by typing the name of the missing chemical in the text box below. 

 

 metal carbonate + ___________  salt + water + carbon dioxide

CORRECT ANSWER
acid
EDDIE SAYS
The reaction of a metal carbonate with an acid produces salt, water and carbon dioxide.
  • Question 7

Complete the following equation by selecting the name of the missing chemical from the list below:

 

 Sodium carbonate + _____________   sodium sulfate + water + carbon dioxide

CORRECT ANSWER
sulfuric acid
EDDIE SAYS
The name of the salt gives you the information required to identify the acid used.
  • Question 8

Complete the following equation by selecting the formula of the missing chemical from the list below.

 

 MgCO3 + ___________    Mg(NO3)2 + H2O + CO2

CORRECT ANSWER
HNO3
EDDIE SAYS
It is important to learn the formulas of hydrochloric acid (HCl), sulfuric acid (H2SO4), and nitric acid (HNO3).
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