Question

When substance change state, the mass stays the same.
True
False

Answer 1

True

Step-by-step explanation:

If an ice cube melted, The amount of water in the ice cube would not be more or less than the water left over from when the ice cube melted. Mass must always stay the same, it cannot be created or destroyed. If a change in state ever occurred and there is more or less mass, the experiment was either contaminated or not kept in an air tight container. Chemicals can dissipate into the air and other chemicals not originally in the reaction can be unintentionally mixed in, fluctuating the level of mass and volume.

Answer 2

the answer is true, hope this helped!