Question

Berny has a 0.15-kilogram candle, a 1.00-kilogram jar, and a 0.25 kilogram candle holder. He places the candle and candle holder in the jar, lights the candle, and then immediately closes the jar.

What should the total mass of the jar and its contents be after the candle goes out? A. 1.40 kilograms B. 1.25 kilograms C. 1.00 kilograms D. 1.15 kilograms

Answer 1

it's a because if you add them together you till get 1.40

Answer 2

In a closed system the mass does not change during the reaction. The total mass of the jar and its contents be after the candle goes out is 1.40 kg.

Conservation of mass:

It states that the mass of the total mass of the reactants is equal to the total mass of the products. It means the in a closed system the mass does not change during the reaction.

Given Here,

Mass of Candle = 0.15 kg

Mass of Candle holder = 0.25 kg

Mass of jar = 1.00 kg

The mass of candle did not release out from system beacause Berny, lights the candle, and then immediately closes the jar .

The total mass after candle goes out,

$\bold {=0.15kg + 0.25kg + 1.00 kg}\\\\\bold {= 1.40 kg}}$

Therefore, the total mass of the jar and its contents be after the candle goes out is 1.40 kg.

To know about Law of mass conservation, refer to the link:

https://brainly.com/question/24996173