Question

CHEMISTRY
1. Which gas is called dry ice? Why?
2. A solution of Ures in water contains 16 grams of it in 120 grams of solution. Find ou​

Answer 1

Answer second

Dry ice is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere).

answer first

Answer 2

ANSWER:

1. dry ice ,carbon dioxide in its solid form a dence snow like substance that sublimes (passes directly into vapor without melting ) at -78.5° C (109.3°F) used as a refrigerant especially during shipping of perishable products such as meats or ice cream

2. Mass of solute =16g

Mass of solution =120g

Mass %=Mass of solute / Mass of solution x 100

=16/120 x 100

= 13.333333333.....%

= 13% (approx )

Explanation:

Hope it helps you !