Answer:
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Explanation:
sorry i just need point lolllllllllll
So multiply number of moles x number of atoms/mole = 1.8066 x 10^24 atoms of H2. One mole of any gas at STP has a volume of 22.4 L. So first determine the number of moles of gas you have.
for example do 7

that 's what I think
The order of the answers are as follows:
B
C
D
A
Answer:Rubidium and Strontium
Explanation: