People throw things away every day. for example, you probably threw away the packaging that your food was in today. or perhaps you threw away a paper that you had finished writing on. what happens to things that you throw away in a trashcan? a. they are compressed and used as building materials. b. they are recycled. c. they are all burned. d. they are taken to a garbage dump.

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.