Liquids: a) must be contained to stay in one spot b) have a variable volume, but a fixed mass c) are usually more dense than solids and gases d) cannot be changed into gases

B) have a variable volume, but a fixed mass

Explanation:

Option A in incorrect. Liquids have flow.  

Option B is correct. Liquids take the shape of the container in which they are kept, so they have a variable volume. Liquids have a fixed mass as mass is the amount of matter in a substance.  

Option C is incorrect. Liquids are less dense than solids but more dense than gases.  

Option D is incorrect. Liquids can change into gases by a process known as vaporization.  

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

c. is the answer

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