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
Which of the following lists gives the correct order of reactivity of metals (most reactive first)?
Sodium, Potassium, Calcium
Potassium, Calcium, Sodium
Potassium, Sodium, Calcium
Which metal does not react with acid?
Potassium
Copper
Calcium
Which is the correct word equation for magnesium reacting with hydrochloric acid?
Magnesium + hydrochloric acid \(\rightarrow\) magnesium chloride
Magnesium + hydrochloric acid \(\rightarrow\) magnesium chloride + water
Magnesium + hydrochloric acid \(\rightarrow\) magnesium chloride + hydrogen
When added to water which of the following sinks and then rises as it reacts?
Potassium.
Calcium.
Magnesium.