The hydrogen bonds that form between water molecules account for some of the essential and unique properties of water. The attraction created by hydrogen bonds keepswater liquid over a wider range of temperature than is found for any other molecule its size.
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D an average train goes 300 km/h or 190-220 mph
Mg gained mass because it went from being a single element (on the reactant side) to being a molecule (on the product side).
Moles = 15.5 g / 40 g/mol = 0.3875 mol
M = 0.3875 mol / 0.250 L = 1.55M
