4.4.1 Reactivity of metals

Question 1

How can a metal be called an ore?

Answer 1

If that metal can be extracted for profit from the compounds in a rock

Question 2

What must be done to extract metals?

Answer 2

Since most ores contain Metal oxides, the oxygen must be removed.

Question 3

What are these types of reactions (that remove oxygen)?

Answer 3

Reduction reactions

Question 4

What is group number?

Answer 4

The number of electrons on the outer shell.

Question 5

List the reaction pattern for a metal and acid

Answer 5

Metal + Acid > Salt + Hydrogen

Question 6

List the reaction pattern for a base and acid

Answer 6

Base/Metal Oxide + Acid > Water + Salt

Question 7

List the reaction pattern for an alkali and an acid.

Answer 7

Alkali + Acid > Water + Salt

Question 8

List the reaction pattern for a Carbonate and an acid.

Answer 8

Carbonate + Acid > Water + Carbon Dioxide + Salt

Question 9

List the reaction pattern for Ammonia and an Acid.

Answer 9

Ammonia + Acid > Ammonium Salt

Question 10

Complete the following displacement reactions:

zinc oxide + calcium:
magnesium + iron (III) oxide

Answer 10

zinc oxide + calcium > calcium oxide + zinc
magnesium + iron (III) oxide > magnesium oxide + iron