The elementary reaction_. A)converts reactants to products in a single step
B )has only elements as reactants
C )has only elements as products
D) never needs a catalyst

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume