C4 - Acids Recacting With Metals

What do all acids contain?

Hydrogen.

Name three common acids used in chemistry.

Hydrochloric acid (HCl), Sulfuric acid (H₂SO₄), Nitric acid (HNO₃).

What happens when metals react with acids?

They produce a salt and hydrogen gas.

Why can some metals react with acids to release hydrogen?

Because they are more reactive than hydrogen and displace it from acids.

What is the general word equation for acid + metal?

Acid + Metal → Salt + Hydrogen.

What type of salts does hydrochloric acid produce?

Chlorides.

What type of salts does sulfuric acid produce?

Sulfates.

What type of salts does nitric acid produce?

Nitrates.

What products are made when magnesium reacts with hydrochloric acid?

Magnesium chloride and hydrogen gas.

What products are made when magnesium reacts with sulfuric acid?

Magnesium sulfate and hydrogen gas.

How quickly does magnesium react with acids, and why?

Rapidly, because magnesium is much more reactive than hydrogen.

What products are made when zinc reacts with hydrochloric acid?

Zinc chloride and hydrogen gas.

What products are made when zinc reacts with sulfuric acid?

Zinc sulfate and hydrogen gas.

How quickly does zinc react with acids, and why?

Fairly rapidly, because zinc is more reactive than hydrogen.

What products are made when iron reacts with hydrochloric acid?

Iron(II) chloride and hydrogen gas.

What products are made when iron reacts with sulfuric acid?

Iron(II) sulfate and hydrogen gas.

How quickly does iron react with acids, and why?

Slowly, because iron is only slightly more reactive than hydrogen.

Give a symbol equation for magnesium reacting with sulfuric acid.

Mg + H₂SO₄ → MgSO₄ + H₂

Give a symbol equation for zinc reacting with hydrochloric acid.

Zn + 2HCl → ZnCl₂ + H₂

Give a symbol equation for iron reacting with sulfuric acid.

Fe + H₂SO₄ → FeSO₄ + H₂