1. An ionic compound solution is a(an)________ of electric current.
non-conductor
absorber
emitter
good conductor
reverser
ans: good conductor
2. Hydrogen bonding in water accounts for
water's higher than expected boiling temperature
the fact that ice floats in liquid water
the fact that snowflakes are 6-sided
All of the above
ans: water's higher than expected boiling temperature
3. Polar compounds such as alcohol would be expected to be
more soluable in water than in non-polar solvents
more soluable in non-polar solvents than in water
equally soluble in water and non-polar solvents
none of these
ans: more soluable in water than in non-polar solvents
4. Water solutions of ionic substances that conduct electricity are called
electrical solutions
polar sulutions
electrolytes
indicators
ans: electrolytes
5. When a solvent is cooled, it will dissolve
more solid
more gas
less gas
the same amount of solid and gas
ans: the same amount of solid and gas
6. The water hardness in an area is reported as 700 ppm total dissolved solids. This is the same concentration as
0.007%
0.07%
0.7%
7%
ans: 0.07%
7. If the force of attraction between the ions in a solid is very strong, you would expect the solid to have
low solubility in water
high solubility in water
low solubility in a non-polar solvent
high solubility in a non-polar solvent
ans: low solubility in water
8. In liquid solutions, the solute is
a solid
a liquid
a gas
All of these could be true.
ans: All of these could be true
9. A solution with a pH of 2
is twice as acidic as one with a pH of 1
is half as acidic as a solution with a pH of 1
is ten times as acidic as a solution with a pH of 1
is one tenth as acidic as a solution with a pH of 1
ans: is one tenth as acidic as a solution with a pH of 1
10. An alkane with 6 carbon atoms would have how many hydrogen atoms in each molecule?
12
8
18
16
14
ans: 14
3 answers
1 answer