2
6
12
18
b. what does the law of conversion of matter (or the law of conservation of mass) tells the students^
Matter might be lost in a chemical or physical process.
Matter is always gained or lost in a chemical or physical process
matter might be gained in a chemical or physical process
Matter is never gained or lost in a chemical or physical process
1 answer
a. If there are 12 atoms of hydrogen shown on the reactant side, then there must also be 12 atoms of hydrogen on the product side. Therefore, the correct answer is 12.
b. The law of conservation of mass states that Matter is never gained or lost in a chemical or physical process. Therefore, the correct answer is: Matter is never gained or lost in a chemical or physical process.
