Question

What will happen if the same reaction is done in a sealed container that is placed over the electronic balance? The answer choices are as follows A: the mass will decrease, B: the mass will increase, C: the mass will stay the same, D: there is not enough information to predict whether the mass will increase, decrease, or stay the same during the reaction

Answer 1

If the same reaction is done in a sealed container that is placed over the electronic balance, the mass will stay the same because no product can escape, even if the product is a gas, it will be trapped inside the container, since the container is sealed.

The answer is C - the mass will stay the same.