5. What do the following symbols stand for?(a) H (b) H (c) 2H (d) 2H,5

1.	5. What do the following symbols stand for?(a) H (b) H (c) 2H (d) 2H,5. What is meant by atomicity ? Name a diatomic element.(a) Explain the terms 'valency' and 'variable valency'.(b) How are the elements with variable valency named ?Explain with an example.3. Give the formula and valency of :(a) aluminate(b) chromate
Answer» Answer: 2 HgO 2 Hg + O2. A chemical EQUATION has several parts:

5. What do the following symbols stand for?(a) H (b) H (c) 2H (d) 2H,5. What is meant by atomicity ? Name a diatomic element.(a) Explain the terms 'valency' and 'variable valency'.(b) How are the elements with variable valency named ?Explain with an example.3. Give the formula and valency of :(a) aluminate(b) chromate

Answer»

Answer:

2 HgO 2 Hg + O2. A chemical EQUATION has several parts: