Water as a biological molecule

Water is made up of how many atoms?

• 2 hydrogen atoms and 2 oxygen atoms

• 2 hydrogen atoms and 1 oxygen atom

• 1 hydrogen atom and 2 oxygen atoms

• 1 hydrogen atom and 1 oxygen atom

Which one of the following is a property of water?

• Water has high melting point

• Water has low boiling point

• Water is a solvent

• Water dissolves everything

What is the name of the intermolecular forces that attract water molecules together?

• Hydrogen bonds

• Covalent bonds

• Van der waals bonds

• Induced dipole bonds

Water molecules stick together because

Which property of water allows it's solid form to float on top of liquid water, and why is this property important in biology?

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Answer explanation

Property is density and freezing properties of water. This is important in cold seasons and climate because it increases chances of survival of aquatic animals and plants