metal and water year 8

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

• Sodium
• Magnesium
• Copper
• Zinc

Which metal is more reactive than calcium?

• magnesium
• potassium
• silver
• aluminum

Metals that react quickly/strongly with water and acids are called?

• Reactive
• Unreactive
• Dangerous
• Corrosive

What are the reactants for the reaction of metal with water?
Metal + water ---> metal hydroxide + hydrogen

• Metal
• Water
• Metal and water
• Metal hydroxide and hydrogen

What are the products for the reaction of metal with water?
Metal + water ---> metal hydroxide + hydrogen

• Metal
• Water
• Metal and water
• Metal hydroxide and water

How can you tell that a metal is reacting with water?

• Colour change
• Bright light
• Fizzing
• It gets colder

How can you test to show that when a metal reacts with water, hydrogen gas is produced?

• Relights a glowing splint
• A lit splint produces a squeaky pop
• Puts out a burning splint
• Is cold to the touch

What metal hydroxide is produced when magnesium reacts with water?

• Copper hydroxide
• Magnesium oxide
• Magnesium
• Magnesium hydroxide

What gas is always produced when a metal reacts with water?

• Oxygen
• Carbon dioxide
• Hydrogen
• Carbon monoxide

What gas is produced when sodium reacts with water?

• Hydrogen
• Carbon dioxide
• Carbon monoxide
• Water vapour