Metals

Question 1

What is a metal?

Answer 1

Incomplete combustion (when there is an insufficient supply of oxygen) could lead to toxic carbon monoxide (CO) being produced instead of carbon dioxide

Question 2

Why can metals conduct electricity?

Answer 2

The ability of metals to conduct electricity stems from their delocalised electrons. As these are free to move, an electrical current can flow through metallic materials.

Question 3

What can metals react with?

Answer 3

Metals can react with water, acid and oxygen. The reactivity of the metal determines which reactions the metal participates in.

Question 4

What happens when metals react with water?

Answer 4

Metals can react with water, acid and oxygen. The reactivity of the metal determines which reactions the metal participates in.

Question 5

Whats an example of metals reacting with water?

Answer 5

calcium+water—- calcium hydroxide+hydrogen

Question 6

What happens when metals react with acids?

Answer 6

When metals react with acids, a salt of the metal and hydrogen gas are formed

Question 7

Whats an example of a metal reacting with an acid?

Answer 7

magnesium+ hydrochloric acid —- magnesium chloride+hyrdogen

Question 8

What happens when metals react with oxygen?

Answer 8

When metals react with oxygen, metal oxides are formed.

Question 9

Whats an example of metals reacting with an oxygen?

Answer 9

zinc+oxygen—- Zinc(II) oxide

Question 10

What happens during an electrolysis reaction?

Answer 10

Negative ions loose electrons at the positive electrode (oxidation)
Positive ions gain electrons at the negative electrode (reduction)