displacement year 8

Iron + copper oxide =

• Iron + copper oxide

• Iron oxide + copper oxide

• Iron oxide + copper

• Magic

Which of the following is more reactive?

• Calcium

• Magnesium

• Zinc

• Magnesium

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

• Product 
• Reactant
• Starters
• Enders

What will the products of this reaction be?

calcium + zinc nitrate --------->

• Calcium + zinc nitrate

• Zinc + calcium nitrate

• there will be no reaction

• Zinc + calcium chloride

True or false? Chemical reactions are easily reversible

• True

• False

True or false: A change in state is a chemical reaction

• True - something melting would be an example of a chemical reaction

• False - a change in state is a physical change

In a word equation, the starting chemicals are called...

• reactants

• products

• ingredients

Acid + Metal --> ?

• Salt + Water
• Salt + Hydrogen
• Salt
• Hydrogen

What is the addition of oxygen to a substance called?

• decomposition
• reduction
• oxidation
• extraction

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

• Oxygen

• Carbon Dioxide

• Hydrogen

• Carbon Monoxide