YMCA Prices. The YMCA (Young Menâs Christian Association) is an organization which aims to put Christian values and principles in place by helping members develop a sound mind, body and spirit. The organization, which began in 1944, now has 125 national associations with members and beneficiaries numbering in the millions.
A chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved.
Reaction, Chemical. the transformation of one or more substances into one or more new substances, differing from the original in chemical composition or structure. Both the total number of atoms of any given element and the chemical elements making up the substances remain unchanged during a chemical reaction.