Question

1.How will she find the nature of the gas?
ANS= ?​

Answer 1

Answer:

nature of gases are oxygen carbon dioxide nitrogen ozone

Answer 2

Answer:

here what you see

Explanation:

In order to polish the gold ornament, it is to be dipped into a liquid called aqua regia (a mixture of hydrochloric acid and nitric acid). On getting dissolved in the environment of aqua regia, the outer layer of gold dissolves and an inner shiny layer appears. The dissolving of the layer causes a reduction in the weight of the jewelry.