a) The sum of the masses of all substances involved.
b) The number of molecules of all substances involved.
c) The number of atoms of each type involved.
d) Both (a) and (c) must be the same.
e) Each of the answers (a), (b), and (c) must be the same.
2006-06-22 01:04:31 · 4 answers · asked by karim b 1 in Science & Mathematics ➔ Chemistry
d) both a and c
becasue in a chemical reaction everythin on the product and teh reactant must be the same
the mass and atoms must be same
2006-06-28 16:35:48 · answer #1 · answered by wxy0062003 2 · 0⤊ 1⤋
the answer is D...conservation of mass and number of atoms cant change, number of molecules can change..
2006-06-22 08:09:20 · answer #2 · answered by UCSC Slugmaster 4 · 0⤊ 0⤋
d. (except for a nuclear reaction)
Plus the net electrical charge must remain the same.
2006-06-22 08:06:53 · answer #3 · answered by Iridium190 5 · 0⤊ 0⤋
d
2006-06-22 08:07:57 · answer #4 · answered by 2_b_or_not_2_b 3 · 0⤊ 0⤋