According to the law of conservation of mass, the mass of the reactants before a chemical reaction must equal the mass of the products after the reaction. Therefore, if the mass of the elements before the chemical reaction is 30 grams, after the chemical reaction, the mass will be 30 grams.
If the mass of elements before a chemical reaction is 30 grams, after the chemical reaction, the mass will be __. (1 point)
Responses
0 grams
0 grams
32 grams
32 grams
30 grams
30 grams
28 grams
1 answer