The following is a partial chemical equation : ? CO 2 +2H 2 O What can you infer about the reactants in this reaction ?

A. The reactants include 1 carbon dioxide molecule and 2 water molecules
B. The reactants include 2 carbon dioxide molecules and 1 water molecule.
C. The reactants include 1 carbon atom4 oxygen atomsand 4 hydrogen atoms. D. The reactants include 1 carbon atom, 2 oxygen atoms, and 2 water molecules

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

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.