Astudent conducts an experiment to determine the effect of adding salt on the boiling temperature of water. the
results are shown below.

Is a pencil falling to the floor anon contact force, a force, or a contact force

How are the terms group and period used on the periodic table

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.