15 pts the drop down items have the same options for all sections labeled choose an item

#8
1)0.960 mol ch4
2)1 mol ch4
3)22.4 l ch4

#9
1)1 mol h2o
2)17.99 g h2o
3)2.0 mol h2o

#10
1)22.4 l co2
2) 2.0 l co2
3) 1 mol co2
4)6.02 x 10 23molecules co2

8) 21.504 liters of gas

9) 122.5 g

10) 6.022*10^23

Explanation:

8)

1 mole= 22.4 liters

to calculate the volume of gas of 0.960 moles of CH4

22.4*0.960/1

= 21.504 liters of gas  

9)

2.0 mole*18.02 g/ 1 mole

=122.5 g

10)

2.0 l * 1 mole/22.4 l

6.022*10^23

they are both synthetic elements

explanation:

d

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d