Please help which one is it

asked Jan 19, 2022 105k views

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Answer:

answer is 0.5

Step-by-step explanation:

H= 2X l =2

0=16 xl = 16

So 16+2=18

lmol of H2O → 18g

xmol of H2O →9g

:. 9÷ 18=0.5

x= 0.5

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