Read “the ozone hole” and answer the question below.

use examples from the article to explain one positive and one negative effect that chemistry has had on society.

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

What type of reaction fuels the processes seen here?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro