a student combines two liquids in a beaker she observes that the mass of the combine liquid is less than the mass of the two separate liquids. The student claims that this observation shows the matter is not concerned and chemical reactions which statement explains why the students claim is incorrect With the answer combined liquid was warmer than the two separate liquids or is it the reaction did not change the physical properties of the liquids or the reaction produced a gas that escaped the beaker or was the product container Adams then reactants

Answer 1

The student's claim is incorrect because the reaction produced a gas that escaped the beaker.

In a combination of two liquids, it is possible that a chemical reaction occurs that results in the formation of a gas, and if this gas escapes the system, it would lead to an observed decrease in mass compared to the mass of the separate liquids. This does not contradict the law of conservation of mass, which states that matter cannot be created or destroyed; rather, it indicates that some of the mass has left the system as gas.