Identify IV and DV Does type of energy affect how much your energy bill costs?

(A) IV: type of energy DV: cost of bill

(B) IV: cost of bill DV: type of energy

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.