two sealed flasks each have a volume of 2.0 liters. flask a contains n, o gas and flask b contains h, gas both at 1
stp. each gas has the same -

Each gas have same number of molecules.

Explanation:

According to Avogadro law,

Equal volume of all the gases at same temperature and pressure have equal number of molecules.

Mathematical expression:

V ∝ n

V = Kn

V/n = K

k = constant

V = volume of gas

n = number of moles of gas

when volume change is changed from v1 to v2 and number of moles from n1 to n2 this law can be written as,

V1 / n1 = V2 /n2

This state that by increasing the number of moles of gas volume also goes to increase.

it's c. elements are placed in rows based on how may valencies electrons have.

im not exactly sure but i think its b!