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6. When does a reaction occur.
- When the metal being added is lower in the reactivity series than the metal in the salt.
- When the metal being added is higher in the reactivity series than the metal in the salt.
- When the metal being added is in the same group as the metal in the salt.
7. What is a displacement reaction?
- It is when a metal is displaced from a salt solution.
- It is when a metal is added to a salt solution.
- It is when a metal reacts with a salt solution.
8. Which Metals react quickly with cold water, dilute acids and oxygen?
- Potassium, Sodium, Calcium
- Magnesium, Sodium, Potassium
- Sodium, Magnesium, Aluminium
9. What is reduction?
- The sharing of electrons
- The gain of electrons
- The loss of electrons
10. When magnesium reacts with steam what does it produce?
- A metal oxide and water
- A metal oxide and hydrogen.
- A salt and water