Of the following items, the last to occur when toxic chemicals are discarded into a stream is that the chemicals
a.
pose a threat to human health.
b.
enter the food chain.
c.
are carried into a lake.
d.
harm aquatic plants and animals.
e.
cause birth defects in offspring

Noble gases are the most reactive elements on the periodic table. a. true b. false

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

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.