Properties Of Water Question Preview (ID: 15930)
Properties Of Water (2.2).
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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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