Metal reactions Quizziz

When metals react with acids, they make...

• Salt and water

• Salt and hydrogen

• Metal oxides

• Metal hydroxides and hydrogen

When metals react with oxygen, they make...

• Salt and water

• Salt and hydrogen

• Metal oxides

• Metal hydroxides and hydrogen

When reactive metals react with water, they make...

• Salt and water

• Salt and hydrogen

• Metal oxides

• Metal hydroxides and hydrogen

I add iron to copper sulfate. The solution changes colour and a brown solid appears. What does this say about iron?

• It is more reactive than copper.

• It is less reactive than copper.

• Iron is more reactive than sulfur.

• Iron is less reactive than sulfur.

What are the products made when I add iron to copper sulfate?

• Copper iron and sulfur dioxide

• Copper sulfide and iron oxide

• Iron sulfate and copper

• Iron sulfide and copper oxide

Which is the most reactive metal out of these four?

• Gold

• Aluminium

• Potassium

• Iron

What is the name of the rock that you can extract metals from?

• Compound

• Ore

• Alloy

• Ceramic

Which of the following is a property of ceramics?

• Conducts heat

• Conducts electricity

• High melting point

• Malleable

Which of the following is a composite?

• Potassium

• Water

• Iron

• Steel

Why do we use alloys instead of pure metals?

• They are harder

• They are edible

• They are less toxic

• They are softer