The number of molecules in 1.0 mole of H2O is _ as in one mole of O2

The same.

Explanation:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ molecules.

This implies that 1 mole of H2O contains 6.02×10²³ molecules and also, 1 mole of O2 contains 6.02×10²³.

From the above illustration, we can see that 1 mole of H2O and 1 mole of O2 contains 6.02×10²³ molecules respectively.

Therefore, the number of molecules in 1 mole of H2O is the same as in 1 mole of O2.

hey there!

boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. the vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid.

at the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.

hope this you

tobey

yes

ya te ayud espera