D) 7
20 points
2. How does the concept of conservation of mass apply to chemical
reactions? (hint: the Law of Conservation of Mass) *
a) the reactants and products have exactly the same molecules
b) the change in the amount of matter is equal to the change in energy
o
c) the reactants and products have exactly the same atoms
d) the change in the amount of matter is only a small percentage of the total mass
W
3. How many Oxygen (O) atoms are in the chemical formula below?. *
Solved
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Ответ:
the reactants and products have have exactly the same molecules
Ответ:
i think it is correct