a student mixes vinegar and baking soda in a sealed plastic bag. the bag inflates due to gas being produced…

a student mixes vinegar and baking soda in a sealed plastic bag. the bag inflates due to gas being produced, but when the student weighs the bag before and after the reaction, the mass remains the same. what does this demonstrate about the law of conservation of mass?\nthe gas produced during the reaction disappears, so the total mass decreases.\nthe sealed bag prevents the gas from escaping, so the total mass stays the same.\nchemical reactions can create new mass if enough energy is added.\nthe mass only stays the same if the reaction doesnt produce a gas.

a student mixes vinegar and baking soda in a sealed plastic bag. the bag inflates due to gas being produced, but when the student weighs the bag before and after the reaction, the mass remains the same. what does this demonstrate about the law of conservation of mass?\nthe gas produced during the reaction disappears, so the total mass decreases.\nthe sealed bag prevents the gas from escaping, so the total mass stays the same.\nchemical reactions can create new mass if enough energy is added.\nthe mass only stays the same if the reaction doesnt produce a gas.

Answer

Answer:

The sealed bag prevents the gas from escaping, so the total mass stays the same.

Brief Explanations:

According to the law of conservation of mass, in a closed - system chemical reaction like this one (sealed plastic bag), mass is neither created nor destroyed. The gas produced remains in the bag, keeping the total mass constant.