Students measure the weight of some baking soda, a solid. They also measure the weight of some vinegar, a liquid. They mix the substances together and many bubbles appear on the surface of the new liquid. They measure the weight of this new liquid and it is less than the sum of the weights of the baking soda and vinegar before mixing. Why is the weight of the new liquid less than the sum of the weights before mixing? Answer options with 4 options A. because the solid melted B. because the solid dissolved C. because a gas formed and escaped D. because a liquid weighs less than a solid