In an experiment, a student gave the time for a piece of magnesium ribbon todissolve completely in sulfuric acid as 13.25 s. What is wrong with his answer?

a

explanation:

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.

може ли да зареждате повече информация, моля

the answer is c.the valence of the atoms combine .