Properties Of Water: Question Preview (ID: 15930)


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In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result, the oxygen atom is
a) slightly negative b) slightly positive c) very negative d) very positive
When sugar is dissolved in water, water is the ____.
a) solute b) solvent c) buffer d) suspension
While preparing a cell culture, a scientist places a colony of bacteria into distilled water and stirs it. This mixture of water and living cells would best be called ____.
a) a solution b) a buffer c) a suspension d) an isotope
Adhesion is responsible for the attraction between water molecules and the glass sides of a graduated cylinder.
a) true b) false c) d)
A water molecule is polar because there is an uneven distribution of ___ between the oxygen and the hydrogen atoms.
a) protons b) neutrons c) electrons d) isotopes
A compound that produces hydrogen ions in a solution is a(n) ____.
a) salt b) polymer c) acid d) base
____ are weak acids or bases that can react with stronger acids or bases to prevent a spike in pH.
a) isotopes b) ions c) suspensions d) buffers
Which of the following values would be considered the most acidic according to the pH scale?
a) 14 b) 3 c) 1 d) 7
Which of the following values would be considered the most basic according to the pH scale?
a) 15 b) 12 c) 7 d) 1
_____ is the property of water that allows it to form water droplets on a smooth surface.
a) cohesion b) adhesion c) surface tension d) capillary action
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