Question

Will mark as brainliest

To investigate the law of conservation of mass, a scientist uses a chemical reaction between two liquid substances. She measures the mass of the liquid in the flask before the reaction. As the reaction occurs, a gas is formed. After the reaction, she again measures the mass of the liquid in the flask. Which statement describes what the result of the new measurement of mass should be?

A.
The mass decreased because the gas that escaped the flask has mass.

B.
The mass increased because the gas that escaped the flask has mass.

C.
The mass decreased because when two liquids combine, they lose mass.

D.
The mass increased because when two liquids combine, they have more mass.

Answer 1

HEYA!!


✅THE ANSWER IS OPTION $A$


because the gas also have mass and when it escape the solution get decrement of mass


we can show by example


let the liquied has 2 and 3 mass


and the gas formed by them by reacting be 1 mass


now


write the eq


2+ 3 -----> 4(solution) + 1(gas)


gas will escape

it means the rain solution remained = 4

and the solution = 5


so, loss in beaker = 5-4 = 1 mass


HOPE IT HELPS U