Question

A) Which of the following equations model the law of conservations of mass? Ca + 2HCI - H2 + CaCl2 or

Answer 1

Answer:

The first equation

Explanation:

For these problems, it is best to label and record how many of each element are on each side of the equation. The first equation has 1 Ca, 2H, and 2Cl on both sides while the second equation has 3H on the left and 2H on the right making the second equation incorrect.