A Compound is formed chemically. A compound has a definite composition . So here Carbon reacts with Oxygen to form Carbon dioxide which is a compound
you need to put the choices
Enzymes affect the rate of the reaction in both the forward and reverse directions; the reaction proceeds faster because less energy is required for molecules to react when they collide. Thus, the rate constant (k) increases. Figure 3: Lowering the Activation Energy of a Reaction by a Catalyst.
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Glucose is used by intestinal cells and red blood cells, while the rest reaches the liver, adipose tissue and muscle cells, where it is absorbed and stored as glycogen.
(it is saved to be used later)
Density is defined as Mass per unit volume of an object ~
And hence, the correct choice is ~ 1
