The % DV (percent daily value)is based on a average 2000 calorie diet one gram of carbohydrate provides 4 calories of energy if Anna's doctor recommends getting 60% of her calories from carbohydrates how many grams of carbohydrates should consume each day? fill in the blank.
Anna should consume grams of carbohydrates daily

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.