What is a property of a combustion reaction? a. oxygen gas, o2, is a reactant. b. the products are simpler than the reactants. c. the reactants are simpler than the products. d. an uncombined element is on the reactant and product side.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action