Group 1&2 reactions

Question 1

How does the metal react with oxygen?

Answer 1

Metal+oxygen -> metal oxide
2Na (s) + ½O 2 (g) -> Na2O (s)

Question 2

How does the metal react with chlorine?

Answer 2

Metal+chlorine-> metal chloride

Question 3

Reactions with acids

Answer 3

Metal + acid -> Metal salt + hydrogen

Question 4

What can make reactions with acids dangerous?

Answer 4

If the acid is highly reactive

Question 5

What determines the salt produced?

Answer 5

The acid used
Eg-sulfuric acid gives a sulfate, HCl gives a chloride

Question 6

Reaction with water

Answer 6

Metal + water -> metal hydroxide + hydrogen

Question 7

Why would state symbols sometimes not be used for group 2 hydroxides?

Answer 7

Their solubility varies

Question 8

What is the solubility trend for group 2 hydroxides?

Answer 8

Become more soluble as you go down the group

Question 9

What is the solubility trend for group 2 sulfates?

Answer 9

Decrease in solubility as you go down the group

Question 10

Reactions with carbonates

Answer 10

Metal carbonate -> metal oxide + carbon dioxide

Question 11

Group 1 reactions with nitrates

Answer 11

Metal nitrate ->Metal nitrite + oxygen

Question 12

Group 2 reactions with nitrates

Answer 12

Metal nitrate -> Metal oxide + nitrogen dioxide + oxygen

Question 13

Which group undergoes greater thermal decomposition?

Answer 13

Group 2, and Lithium