Dilute sulfuric acid has typical acid properties. An excess of it is added to test tubes W, X, Y and Z, which contain these powdered substances:

W. Copper $\left(\mathrm{II}\right)$ oxide

X. Magnesium

Y. Calcium hydroxide 

Z. Sodium carbonate 

In which test-tubes will you observe fizzing?

Dilute sulfuric acid has typical acid properties. An excess of it is added to test tubes W, X, Y and Z, which contain these powdered substances:

W. Copper $\left(\mathrm{II}\right)$ oxide

X. Magnesium

Y. Calcium hydroxide 

Z. Sodium carbonate 

In which test-tube will a coloured solution form?

Dilute sulfuric acid has typical acid properties. An excess of it is added to test tubes W, X, Y and Z, which contain these powdered substances:

W. Copper $\left(\mathrm{II}\right)$ oxide

X. Magnesium

Y. Calcium hydroxide 

Z. Sodium carbonate 

In which of the test-tubes does neutralisation take place?

Dilute sulfuric acid has typical acid properties. An excess of it is added to test tubes W, X, Y and Z, which contain these powdered substances:

W. Copper $\left(\mathrm{II}\right)$ oxide

X. Magnesium

Y. Calcium hydroxide 

Z. Sodium carbonate 

Name the four salts obtained, after reaction.

Dilute sulfuric acid has typical acid properties. An excess of it is added to test tubes W, X, Y and Z, which contain these powdered substances:

W. Copper $\left(\mathrm{II}\right)$ oxide

X. Magnesium

Y. Calcium hydroxide 

Z. Sodium carbonate 

Write balanced equations for the four reactions.