An enzyme can affect a chemical reaction by bringing the reactant closer together - chemical bonds may be weakened, and reactions will happen faster than without a catalyst. The energy can also be lowered, which means reactions will proceed at a lower temperature, light presence, etc.
To determine the mole percent of a mixture ( mole percent of unknown metals = number of mole of each of them divided the total of both the unknown salt × 100) since the percent by mass is know; we the molar mass of X and Z
A mixture is a substance that is made of two or more components that are not chemically combined. For example a mixture of water and paraffin.
A compound, on the other hand, is a pure substance that is made up of two or more atoms of different elements that are chemically joined together.
Unlike an element which can not be broken by chemical means into simpler components, a compound can be chemically broken down to smaller substances such as smaller compounds or individual elements.
Sugar is an example of a compound that is made up of carbon, hydrogen and oxygen atoms.
