Reactions of Metals

• Science
• Lower Secondary (Key Stage 3)

Metals and Acids

Metal or Non-metal?

Which metal is the most reactive?

Tin (Sn)

Iron (Fe)

Magnesium (Mg)

Copper (Cu)

Zinc (Zn)

Calcium (Ca)

Why did you pick that metal?

Rules for naming salts.

Hydrochloric acid 

Nitric acid 

Sulfuric acid 

Chloride

Sulfate

Nitrate

Name the salt formed:

sodium + nitric acid

1. sodium nitrate
2. sodium chloride
3. potassium nitrate
4. potassium chloride

Name the salt formed:

lithium + sulfuric acid

1. magnesium chloride
2. lithium chloride
3. magnesium sulfate
4. lithium sulfate

Name the salt formed:

copper + hydrochloric acid

1. sodium chloride
2. copper chloride
3. sodium nitrate
4. copper nitrate

Complete the equation.

Nitric acid

+

Lithium 

+

Hydrogen

nitrate

chloride

sulfate

potassium

lithium

sodium

copper

Complete the equation.

Hydrochloric acid

+

Sodium 

+

Hydrogen

nitrate

chloride

sulfate

potassium

lithium

sodium

copper

Complete the equation.

Sulfuric  acid

+

Potassium

+

Hydrogen

nitrate

chloride

sulfate

potassium

lithium

sodium

copper

Give the word equation for the reaction of a metal with acid.

+

+

Metal

Acid

Hydrogen

Salt

Ca

Mg

Zn

Cu

Testing for hydrogen. 

1. Place a small piece of magnesium ribbon into a test tube.

2. Use a pipette to add 2-4 ml hydrochloric acid.

3. Cover the top of the tube with your thumb. It is important to stop the gas from escaping.

4. Wait for 1-2 minutes. Angling the test tube away from you and any other students, carefully put a lit splint into the top of your test tube.

Metals and Oxygen

Complete the oxidation reactions.

Copper    +

Iron     +  

Oxygen

Oxygen

Iron Oxide

Copper Oxide

What would be the product of a reaction between zinc and oxygen?

What would be the product of a reaction between sodium and oxygen?

What would be produced in an oxidation reaction with lithium?

Nickel reacts with oxygen. What type of reaction is this?

1. Oxidation
2. Displacement
3. Combustion
4. Neutralisation

Sodium hydroxide reacts with nitric acid. What type of reaction is this?

1. Oxidation
2. Displacement
3. Combustion
4. Neutralisation

What will happen to the mass of the zinc as it oxidises?

1. Tarnish
2. Burning

1. Tarnish
2. Burning

Metals and Water

Watch the demonstration and add you observations to the results table.

How would we write a word equation for these reactions?

Name the alkali formed.

Lithium + Water ................. .................... + Hydrogen

1. Lithium Oxide
2. Lithium Hydroxide
3. Lithium Chloride
4. Lithium Nitrate

Name the alkali formed.

Sodium + Water ................. .................... + Hydrogen

1. Sodium Hydroxide
2. Sodium Nitrate
3. Sodium Sulfate
4. Sodium Oxide

Name the alkali formed.

Calcium + Water ................. .................... + Hydrogen

1. Calcium Carbonate
2. Calcium Oxide
3. Calcium Sulfate
4. Calcium Hydroxide

Hydroxides are always...

1. Acids
2. Alkalis
3. Neutral

Why do we make water pipes out of copper instead of potassium?

Why do we store alkali metals in oil?

Why did we add universal indicator to the water?