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Properties Of Water
Test Description: Properties of water (2.2)
Instructions: Answer all questions to get your test result.
1) 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
very negative
C
slightly positive
D
very positive
2) When sugar is dissolved in water, water is the ____.
A
buffer
B
suspension
C
solute
D
solvent
3) 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 buffer
B
an isotope
C
a solution
D
a suspension
4) Adhesion is responsible for the attraction between water molecules and the glass sides of a graduated cylinder.
A
false
B
true
5) A water molecule is polar because there is an uneven distribution of ___ between the oxygen and the hydrogen atoms.
A
neutrons
B
isotopes
C
protons
D
electrons
6) A compound that produces hydrogen ions in a solution is a(n) ____.
A
acid
B
salt
C
base
D
polymer
7) ____ are weak acids or bases that can react with stronger acids or bases to prevent a spike in pH.
A
buffers
B
ions
C
suspensions
D
isotopes
8) Which of the following values would be considered the most acidic according to the pH scale?
A
7
B
1
C
14
D
3
9) Which of the following values would be considered the most basic according to the pH scale?
A
12
B
7
C
1
D
15
10) _____ is the property of water that allows it to form water droplets on a smooth surface.
A
capillary action
B
surface tension
C
adhesion
D
cohesion
*select an answer for all questions
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