You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical has a mass of 850 grams. The total mass of the setup is 1050 grams. The chemical is ignited by means of a magnifying glass focusing sunlight onto the reactant. After the chemical has completely burned, what is the total mass of the setup?

If the container is still intact, the total mass of the set up has not changed.

1050 grams

To find the total mass of the setup after the chemical has completely burned, we need to consider the conservation of mass principle. According to this principle, the mass of a closed system remains constant before and after a chemical reaction.

Given that the mass of the glass container is 200.0 grams and the mass of the chemical is 850 grams, the initial total mass of the setup is 200.0 grams + 850 grams = 1050 grams.

After the chemical has completely burned, there are no products or reactants left, but the mass remains the same. Therefore, the total mass of the setup after the chemical has burned is still 1050 grams.

To find the total mass of the setup after the chemical has completely burned, we need to consider the conservation of mass. According to the law of conservation of mass, mass cannot be created or destroyed during a chemical reaction. Therefore, the total mass of the setup should remain the same.

Initially, the total mass of the setup is given as 1050 grams, which includes the mass of the glass container (200 grams) and the chemical (850 grams).

When the chemical is ignited and completely burned, it undergoes a chemical reaction, converting it into different substances. However, the sum of the masses of these substances remains the same as the initial mass of the chemical.

Therefore, after the chemical has burned, the total mass of the setup will still be 1050 grams.