Pls answer

maria is baking cookies. she mixes water, flour, sugar, baking powder, butter and chocolate chips and then measures the mass of her ingredients. the mixture has a mass of 1053 grams. maria baked the cookies for 15 minutes and then measured the mass of the cookies and found they now had a mass of 845 grams. why didn't the cookies obey the law of conservation of mass?
group of answer choices

the law of conservation of mass was not obeyed since maria did not measure the mass of all of the ingredients.

the law of conservation of mass was not obeyed since some of the mass was destroyed in the baking process.

the law of conservation of mass was obeyed since some of the mass evaporated while the cookies were baking.

the law of conservation of mass was not obeyed since some of the mass was destroyed in the oven.

Explanation:

The law of conservation of mass, as other physic's laws, is universal, meaning that it is obeyed in any circumstance, place, and time.

Thus, any explanation that asserts that the law of conservation of mass is not obeyed must be discarded.

Hence, first, second and fourth options are incorrect.

The law of conservation of mass states that during any physical or chemical process the mass of the substances can neither created nor destroyed; then, what happened that made the mass of the mixture of ingredients mixed by Maria (1053 g) were greater than the mass of the cookies baked for 15 minutes (845 g)?

One of the physical process that occurs when cooking, due to the increase of temperature, is the evaporation of water (besides the chemical reactions between the ingredients, some of which produce other gases).

The water in form of vapor (steam) will "escape" from the mass and the oven, so when the cookies are weighted they will weight less than the mixture, because the water was transformed from liquid state to gas state; i.e. some of the mass evaporated while the cookies were baking. Thus, the third choice is correct.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.