What is a nebula? another name for the thick, poisonous atmosphere of Venus
a huge cloud of gas and dust particles in space
another name for the dust devils on the surface of Mars
a region in space where there are no stars or planets

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?