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