3.) 2.46 grams of Cu(NO3)2 would contain how many formula units?

the answers would be

the first one and the second one

gas

explanation:

smoke is the matter of a gas

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.