Question

1. *

a jar and three ice cubes weigh 30g. what do the jar and the water weigh after the ice cubes melt?
a. 10g b. 30g c. 60g d. 90g
o a
o b
o c
o d

1. identify all of the statements that are inferences *

Explanation:

Step1: Understand mass - conservation principle

Mass is conserved during a phase - change (like ice melting to water).

Step2: Analyze initial and final states

Initial mass of jar + ice cubes is 30g. After melting, only phase of ice changes to water, mass of jar + water is the same as mass of jar + ice cubes.

Answer:

B. 30g