Answer:
123 g/mol
Explanation:
Let's consider the neutralization reaction.
H₂Z(aq) + 2 NaOH(aq) → Na₂Z(aq) + 2 H₂O(ℓ)
The moles of NaOH that reacted are:

The molar ratio of H₂Z to NaOH is 1:2. The moles of H₂Z that reacted are:

The molar mass of H₂Z is:

Venus. It's got the thickest and densest atmosphere of the terrestrial planets.
MgF₂ ( <span>Magnesium fluoride )
hope this helps!</span>
Answer:
N2H4 is commonly called hydrazine, but it could also be named dinitrogen tetrahydride.
Explanation: