Chapter 4 - Inorganic Chemistry

Question 1

Name the gas produced when an alkali metal reacts with water

Answer 1

Hydrogen

Question 2

Describe how the reactivity of halogens change as you go up the group

Answer 2

Decreases

Question 3

What is a displacement reaction?

Answer 3

A reaction that occurs when a more reactive element replaces a less reactive element in a compound

Question 4

if you add chlorine water with potassium bromide solution, what colour will it go?

Answer 4

the colour of Bromine - Orange/Brown

Question 5

What percentage of the atmosphere is oxygen?

Answer 5

21%

Question 6

Explain the link between carbon dioxide and global warming

Answer 6

Carbon Dioxide forms a blanket around the Earth’s atmosphere.
This ‘blanket’ allows heat from the Sun to enter the atmosphere but then traps it within the atmosphere. This causes the Earth’s temperature to increase.

Question 7

what is the equation for the reaction of an acid with a metal

Answer 7

MASH (Metal + Acid =Salt + Hydrogen)

Question 8

Which is more reactive; Potassium or Lithium?

Answer 8

Potassium

Question 9

What is the least reactive element in the reactivity series?

Answer 9

Gold

Question 10

What is the most reactive element in the reactivity series?

Answer 10

Potassium

Question 11

Which is more reactive; Copper or Hydrogen?

Answer 11

Copper

Question 12

what element is in the middle of the reactivity series?

Answer 12

Carbon

Question 13

what happens when a more reactive metal is put in a solution of a less reactive metal salt?

Answer 13

the more reactive metal displaces the less reactive metal from the compound