Question

Students place 50 g of water in a closed plastic container. They place the container in a freezer. They remove the container when half of the

original mass of water has turned into ice.
What is the combined mass of water and ice in the container?
A. 25 g, because some of the water has left the container
B. 50 g, because the original amount of matter is in the container
c. 75 g, because solid ice has twice as much mass as liquid water
☐ D. 100 g, because there is now twice as much matter in the container

Answer 1

[AI-generated answer — Bot GPT 3.5]

B. 50 g, because the original amount of matter is in the container

Since half of the original mass of water has turned into ice, the combined mass of water and ice in the container would still be equal to the original amount, which is 50 g.