the equation balanced is
3 PbI4 + 4 CrCl3 → 3 PbCl4 + 4 CrI3
1 atm=7.15/9.25
Volume increase comes from reduced pressure
Explanation:
1 mole of a gas has 22.4 L of volume at STP. Therefore, 0.5 mol of H2 has 0.5 x 6.022 x 1023 = 3.011 x 1023 molecules. Hence, the number of moles, molecules and atoms present in 11.2 liters of H2 at STP are 0.5 , 3.011 x 1023 and 6.022 x 1023 respectively.
C . oxygen
i had this the other day
B. All cells have a nucleus, which acts like the brain