Metals Plus Acid

Question 1

List 3 acids

Answer 1

Hydrochloric acid (HCl), sulfuric acid (H2SO4), nitric acid (HNO3). (All acids contain hydrogen).

Question 2

Test for hydrogen gas

Answer 2

When ignited, hydrogen will burn with a loud squeaky pop

Question 3

A salt is a compound formed when the hydrogen in an acid is replaced (whole or partially) by a metal.

Answer 3

magnesium (metal) + sulfuric acid (acid) -> magnesium sulfate (salt) + hydrogen (hydrogen from the acid)

Question 4

Sodium (Na)+ hydchloric acid (HCl)->

Answer 4

Sodium chloride (NaCl)+ hydrogen (H2) (hydrogen is diatomic)

Question 5

Magnesium (Mg)+ nitric acid (HNO3)->

Answer 5

Magnesium nitrate (MgNO3)+ hydrogen (H2)

Question 6

Potassium (K)+ sulphuric acid (H2SO4)->

Answer 6

Potassium sulfate (KSO4)+ hydrogen (H2)

Question 7

What happens when a metal reacts with a acid

Answer 7

The metal replaces the hydrogen to make a salt with the acid + hydrogen