Solid, Liquid, and Gas
Solid is the state in which matter maintains a fixed volume and shape; liquid is the state in which matter adapts to the shape of its container but varies only slightly in volume; and gas is the state in which matter expands to occupy the volume and shape of its container.
Answer:
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Explanation:
Since hydrogen bonding is a stronger intermolecular force than van der Waals forces, more energy is required to separate the molecules of ethanol than the molecules of ethane. Thus ethanol has a higher melting point than ethane.
Answer: 25.37055324733817mol
Approximately 25.371mol
Explanation: Number of moles of a substance is the mass of that substance containing the same amount of fundamental units, for instance atom in 12.0g of 12°C
Therefore:
Number of moles= mass/ molecular mass
Where mass of fluorine given= 482g
Standard Molecular mass of fluorine= 18.9984032g/mol
Substituting value in equation
Mole= 482g/18.9984032g/mol = 25.37055324733817mol
Approximately : 25.371mol
