A teacher holds a strip of gray magnesium metal in a flame. In the flame, the metal strip reacts

with colorless oxygen gas in the air to form a

white, solid powder. Which statement correctly

describes the change?

A) Oxygen and magnesium form a mixture with

the same properties as the original materials

B) Oxygen and magnesium form a solution with

different properties from the original materials

C) Oxygen and magnesium form a compound

with the same properties as the original materials.

D) Oxygen and magnesium form a new substance

with different properties from the originals.

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.

i have no clue hope you find the answer

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.