Reaction of metals (exothermic reaction)

Aluminium is more reactive than ....

• Calcium and Zinc

• Sodium and Gold

• Magnesium and Copper

• Lead and Iron

Complete the word equation below.

Magnesium + oxygen --> .....

• Magnesium

• Magnesium oxide

• Oxides

• Magnesium oxide + water

When a metal reacts with oxygen gas, the product is ...

• metal hydroxide
• metal oxide
• metal oxide and oxygen
• metal hydroxide and hydrogen gas

The least reactive in oxygen in the list is 

• iron
• zinc
• copper
• lead

Which one of the following metals reacts most vigorously with cold water?

• Sodium
• Magnesium
• Copper
• Zinc

the starting materials in a chemical reaction

• Products
• Reactants
• Starters
• Enders

a substance that is formed as the result of a chemical reaction

• Product 
• Reactant
• Starters
• Enders

Sodium is very reactive metal because it reacts vigorously with oxygen and water and

• Generate heat

• Catches fire

• Stored in kerosene

• All of the above

Which diagram shows the most favourable conditions for rust to appear on the nail?

• A

• B

• C

• D

Arrange the metals copper, zinc and iron in their increasing order of their reactivity.

• copper,iron,zinc

• iron,copper,zinc

• copper,zinc,iron

• iron,zinc,copper