Question

In the chemical reaction below, calcium (ca) and water (h2o) react to form calcium hydroxide (ca(oh)2) and hydrogen gas (h2). ca (s) 2h2o (l) → ca(oh)2 (aq) h2 (

g. calcium and water are the reactants in this chemical reaction, whereas calcium hydroxide and hydrogen gas are the products that are formed. once the reaction reaches completion,
a. the total mass of the products will be greater than the original mass of the reactants.
b. the total mass of the products will be equal to the original mass of the reactants.
c. the products of the reaction will have changed back into the reactants.
d. the total mass of the products will be less than the original mass of the reactants.

Answer 1

Answer: D a chemichal reaction.....

Step-by-step explanation:

D

Answer 2

The ans is c. This is theoretically speaking.
Experimental wise would be slightly different. That is because not all the reactants may have fully reacted. Hence, if you are speaking about theory-wise then the ans would be c. But in actual, it would be D.