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Science: Middle School: Grades 6, 7 and 8 Quiz - Reactions of Metals (Questions)

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Lithium, potassium and sodium are all metals which react with cold water. Metals form a reactivity series which can be used to predict their reactions. The most reactive metals, such as sodium, will react with cold water to produce hydrogen and the metal hydroxide.

See how much you know from your Science lessons with this quiz.

Metals are .......

[ ]	good conductors of heat and electricity
[ ]	magnetic materials
[ ]	poor conductors of heat and electricity
[ ]	usually liquids or gasses at room temperature

The metals lithium, sodium and potassium (which react with cold water) are found in which group of the periodic table?

[ ]	1
[ ]	2
[ ]	5
[ ]	7

Some acid is put onto strips of metal. What would you see if the metals react?

[ ]	Burning
[ ]	Color change
[ ]	Nothing
[ ]	Some bubbles of gas

If a metal reacts with a dilute acid, the products will be .......

[ ]	a salt and carbon dioxide gas
[ ]	a salt and hydrogen gas
[ ]	a salt and water
[ ]	hydrogen gas and carbon dioxide gas

A metal which has been used for pipes and in coins because it has little reaction with air or water is .......

[ ]	copper
[ ]	iron
[ ]	sodium
[ ]	tin

Magnesium ribbon reacts with acid. It will react more vigorously if .......

[ ]	less magnesium is added
[ ]	more acid is added
[ ]	more water is added
[ ]	the acid is warmed up

Reactive metals can take the place of a less reactive metal in some reactions. This is known as .......

[ ]	combination
[ ]	displacement
[ ]	neutralisation
[ ]	oxidation

Zinc is more reactive than copper, so can take its place in a reaction with copper sulfate. Which is the correct word equation?

[ ]	Zinc + copper + sulfate → zinc sulfate + copper
[ ]	Zinc + copper sulfate → zinc + sulfate + copper
[ ]	Zinc + copper sulfate → zinc sulfate + copper
[ ]	Zinc sulfate + copper → zinc + copper sulfate

Metal carbonates react with acids to produce carbon dioxide gas. It can be tested for using .......

[ ]	a glowing splint
[ ]	a lighted splint
[ ]	limewater
[ ]	universal indicator

10.

Using your knowledge of metals and their reactions, which list places the metals in order of DECREASING reactivity?

[ ]	Copper, gold, zinc, iron
[ ]	Iron, magnesium, sodium, copper
[ ]	Sodium, magnesium, iron, copper
[ ]	Zinc, gold, copper, sodium

Science: Middle School: Grades 6, 7 and 8 Quiz - Reactions of Metals (Answers)