Which one are only compounds? * a. Steam (H2O), blood, mercury (Hg)
b. Iron (II) sulfide (FeS), Calcium oxide (CaO), Salt (NaCl)
c. Steel, milk, Chlorine gas (Cl2)
d. Gold (Au), bromine gas (Br2), Iodine gas (I2)

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

What is the effect of returning nuclear reactor cooling water back into bodies of water?

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a.soft fossils b.mold fossils c.index fossils d.trace fossils