3.
C3H3(g) + O2(g) CO2(g) + H2O(g)
Find the mass of CO2 released by 1.95 moles of C3Hz.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

it would be a gas formation

a electronegativity decreases beacuse the size of nucleus is bigger.