Answer:
4,3,2
Explanation:
if you balance a chemical equation that is the correct coefficients to be placed in the blank space
If the reaction is a chemical change, new substances with different properties and identities are formed. This may be indicated by the production of an odor, a change in color or energy, or the formation of a solid.
Answer:
C. Atom
The formula weight is calculated by the sum( adding) of the atomic masses for every atom in the formula
Volume of the solution =
= 2 L solution x 
Volume of solute = 7.5 mL
Volume of water (solvent) = 2000 mL - 7.5 mL = 1992.5 mL water