Answer:
B. 214.02
Explanation:
1 mol of water weighs 18.015 gm and contains 6.023 × 10²³ molecules
From question, We have 7.15 × 10²⁴ molecules
Dividing we get (7.15 × 10 ²⁴) ÷ ( 6.023 × 10²³) = 11.871 molecules
Now, Weight of water = 11.871 × 18.015 = 213.85 which is nearer to option B
Squirrel, lion, turtle , crab, jelly fish, dolphin, fish, cow, rooster, human
<span>
all these are correct:
0 for Mg(s) and H in H2
</span><span>+1 for H in HCl
</span><span>-1 for Cl in HCl
</span>
<span>+2 for Mg in MgCl2
only the first statement is wrong</span>
If the temperature increases the pressure increases. If the temperature decreases the pressure decreases I hope this helped
