Question

D. Answer the following questions in brief.
1. What are elements?
2.
Give the chemical symbol of iron and chlorine.
Write the chemical formulae of the following compounds:
3.
(a) Aluminium oxide
(b) Zinc acetate
4.
Balance the following equation:
Ca(OH), + HCl - CaCl + H,O
What does a chemical equation represent?
6. What are reactants and products in a chemical equation?
Give one example of a combination reaction.
5.
7.
44व्हाट इस केमिकल सिंबल ऑफ आयरन एंड क्लोराइड ​

Answer 1

Answer:

how many hours a day to dig a trench 147 long how many hours a day to dig a trench 147 long how many hours a day to dig a trench 147