What compound is formed when a metal burns in air?
Hydroxide
Carbonate
Oxide
What are the correct observations when magnesium is heated in air?
It burns with a golden yellow flame forming a white solid
It burns with a bright, white flame forming a white solid
It burns with a lilac flame forming a white solid
Which of the following is not an observation when potassium reacts with water?
It sinks
It fizzes
It disappears
What gas is produced when metals react with steam?
Hydrogen
Oxygen
Carbon dioxide
Which of the following is the correct equation for the reaction of zinc with steam?
Zn(s) + H2O(l) → ZnO(s) + H2(g)
2Zn(s) + H2O(g) → Zn2O(s) + H2(g)
Zn(s) + H2O(g) → ZnO(s) + H2(g)
What is the purpose of damp mineral wool in the apparatus used to react metals with steam?
To stop gases escaping
To generate steam upon heating
To soak up any fumes given off
A piece of magnesium metal is added to a test tube containing copper(II) sulfate solution. Which of the following would you observe?
Blue solution changes to orange
The blue solution fading
No reaction
Which of the following could not displace calcium from a compound?
Potassium
Sodium
Magnesium
Which of the following metals cannot be extracted using carbon?
Aluminium
Iron
Zinc