Which of the following formulas contain the same number of oxygen atoms? Mg(NO2
NH. NO
Ca(CIOU
IV
Nacioz
V
CONO2
O A Formulas I and II
OB. Formulas II and IV
o C. Formulas I, II, and III
OD. Formulas I, II, and IV

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

Which of the following is a chemical property of water at 4 c

In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.