The student weighs a sample of baking soda and a beaker containing vinegar. The student then mixes the baking soda into the vinegar. The mixture bubbles and fizzes, but all of the liquid stays in the beaker. The student weighs the beaker again after the reaction stops.



Item Weight (grams)
Baking soda 5
Beaker and vinegar 60
Baking soda and beaker with vinegar before mixing 65
Baking soda and beaker with vinegar after mixing 63

Question
Why did the weight of the baking soda, beaker, and vinegar change after mixing?

Answer options with 4 options
A.
The chemical reaction used up some of the baking soda as fuel.

B.
The chemical reaction released a gas which was not captured and weighed.

C.
The chemical reaction caused the baking soda and vinegar mixture to expand.

D.
The chemical reaction turned the baking soda and vinegar into new substances.