Every magnet must have what at its ends? O A. A positive charge and a negative charge
B. A positive charge and a north pole
C. A north pole and a south pole
D. A south pole and another south pole

the link still does not work even when adding it to the url bar

explanation:

the temperature of the gas, in k, not celsius.

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.