Question

B. Glve two examples for each of the following:
1. Objects on which chromium plating is done
2. Metals extracted from their ores using electrolysis
3. The product of electrolysis of water
4 Conductors
5 Osulators​

Answer 1

Answer:

Molecular mass of Na = 23g/mole No. of mole = massmolar mass In 200g of Na moles is n = 200g23g/mole n = 8.69 moles of Na

Explanation:

Answer 2

Answer:

1.bicycle , handlebars

2.copper , silver

3.?

4.metal,graphite

5. Paper, rubber

5. It will be insulator