Free Printable Effect of Heat on Salts

Worksheets

Effect of Heat on Salts

Total questions: 20

Worksheet time: 40mins

Name

Class

Date

1. Limewater in diagram turns cloudy.

What is the gas released?

Hydrogen

Oxygen

Carbon dioxide

Ammonia

Which one is the chemical equations for effect of heat on copper(II) carbonate?

CuCO₃

CuCO₃ --> CuO + CO₂

2Cu(NO₃)₂ --> 2CuO + 4NO₂ + 2O₂

CuO + CO₂

What is (are) produce when nitrate salt is heated?

carbon dioxide

nitrogen

oxygen

nitrogen dioxide

What salt can decompose during heating?

Zinc carbonate

sodium carbonate

ammonium nitrate

zinc sulphate

When heated, nitrate salts decompose to produce

metal oxide

nitrogen dioxide

carbon dioxide

oxygen

water

Silver nitrate decompose to produce

Silver + oxygen

Silver + carbon dioxide + oxygen

Silver + nitrogen dioxide + oxygen

nitrite salt + oxygen

This salt does not decompose upon heating

potassium carbonate

calcium carbonate

magenesium carbonate

ammonium carbonate

Which of the following salts will produce a brown gas on heating?

Lead(II) bromide

Sodium chloride

Potassium nitrate

Zinc nitrate

When lead(II) nitrate solution is added to solution X, a white precipitate is produced. Solution X may be

(two answers)

HNO₃

Na₂CO₃

BaCl₂

KNO₃

10.

A white salt is heated. Colourless gas released, the gas turns lime water chalky. Residue is yellow when hot and white when cold. Name the salt.

Zinc nitrate

Zinc carbonate

Magnesium nitrate

Magnesium carbonate

11.

what is the aim of this experiment

identifying the gas released

To investigate the action of heat on carbonate salts

To investigate the action of heat on nitrate salts

To investigate and identifying gas test

12.

Which of the following is colourless gas?

Oxygen

Chlorine

Ammonia

Hydrogen

Nitrogen dioxide

13.

Nitrogen dioxide gas is ....

Acidic

Neutral

Alkaline

14.

Indicators are -

Substances which are nor Acidic or Basic

Substances that are used to test the Acidic or Basic nature of a substance

Substances which have both chemical and physical properties

None of the Above

15.

Salts that are made with carbonic acid are called ______________.

chlorides

sulfates

nitrates

carbonates

16.

If you have a solution that is very acidic with a pH of 3.5, what can you do to raise the pH?

add more acid

add more water

increase the temperature

add a base

17.

If an acid is combined with a base of equal strength, the result will most likely be

a neutral solution.

a stronger acid.

impossible to tell without testing the pH.

a stronger base

18.

What line segment represents only the solid state?

A-B

B-C

C-D

D-E

19.

In which segment is the kinetic energy remaining constant?

A-B

B-C

C-D

E-F

20.

_________________ + nitric acid --> calcium nitrate + water

calcium sulfate

calcium oxide

calcium carbonate

calcium

100 %

Effect of Heat on Salts

Total questions: 20

Worksheet time: 40mins

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