Y8 U8 Reactions of metals with water and acids [revisioN]

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

• Reactive
• Unreactive
• Dangerous
• Corrosive

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

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

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

• Oxygen
• Carbon dioxide
• Hydrogen
• Carbon monoxide

If potassium reacts with water what are the 2 products of the reaction?

• potassium hydroxide + oxygen

• potassium hydroxide + hydrogen

• potassium + hydrogen oxide

• Potassium hydroxide + hydrogen oxide

From a list of metals below, which metals reacted with cold water?

Aluminium, Copper, Iron, Lead, Magnesium, Potassium, Sodium

• Aluminium and Copper

• Copper and Iron

• Potassium, Sodium

• Lead and Aluminium

What can we observe from the reaction of calcium with water?

• React slowly at first then increase quickly and produce a hydrogen gas

• React quickly and produce a hydrogen gas

• React slowly at first then increase quickly and produce a carbon dioxide gas

What metals that do not react either with cold or hot water but they react with steam?

• Potassium

• Aluminium, Iron, Zinc

• Iron, Copper, Calcium

• Magnesium, Sodium

Which metals react vigorously with cold water?

• Aluminium and Iron

• Potassium and Sodium

• Copper and Zinc

• Lead and Iron

What can we observe from the test of Magnesium metal with hot water?

• Produce a nitrogen gas and bright flames

• Produce a carbon dioxide gas and floating

• Produce a bright flames

• Produce a hydrogen gas and floating

What metals that do not react with water at all?

• Aluminium

• Zinc

• Sodium

• Silver