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WorksheetsSolutions Quiz Review -- Spring 2021
Total questions: 20
Worksheet time: 10mins
Water is said to have a slightly positive end and a slightly negative end. This definition means that water is a ______ molecule
metallic
radioactive
polar
nonpolar
Water can form ________ bonds because the slightly positive hydrogen is attracted to the slightly negative oxygen from a different water molecules
metallic
ionic
covalent
hydrogen
Why is water unable to dissolve oil?
Water is polar and can't dissolve polar substances, like oil
Water is polar and can't dissolve nonpolar substances, like oil
Water is nonpolar and can't dissolve polar substances, like oil
Water is nonpolar and can't dissolve nonpolar substances, like oil
Why will some pipes burst with freezing temperatures?
Water condenses in colder temperatures, causing the metal to shrink and burst
Water expands in colder temperatures, causing pressure inside the pipes, making it burst
Water becomes acidic in colder temperatures, causing corrosion of the pipes, making it burst
Water becomes basic in colder temperatures, causing corrosion of the pipes, making it burst
What do you call the substance that is dissolved in a solution? For example, the sugar dissolved in your sweet tea?
pH
Molarity
solute
solvent
A solution is made up of two parts: The solute, which is being dissolved, and the __________, which is doing the dissolving
suspension
colloid
electrolyte
solvent
A ___________ is a heterogeneous mixture in which some particles settle out of the mixture upon standing; these particles are much LARGER than those found in a solution.
molarity
acidity
suspension
colloid
A __________ is a heterogeneous mixture in which the disperse particles are INTERMEDIATE in size. Examples include milk, fog, styrofoam, and whipped cream
molarity
acidity
suspension
colloid
The scattering of visible light from colloidal particles is called the ______ ______. This is why low beams are used when driving in fog.
Bohr model
molarity dilution
solubility curve
Tyndall effect
A(n) __________ is any salt or ionizable molecule that, when dissolved in a solution, will give that solution the ability to conduct electricity
polar body
electrolyte
nonelectrolyte
miscible
A _________ solution is one that contains the maximum amount of solute that can be dissolved at that specific temperature.
saturated
unsaturated
supersaturated
A ____________ solution is a solution that contains the minimum amount of solute dissolved at that temperature, and has room for more solute to be added (a really watered down solution)
saturated
unsaturated
supersaturated
A _______ solution is a solution that contains more solute than the saturation point at that temperature. There are undissolved particles that will sink towards the bottom of the solution.
saturated
unsaturated
supersaturated
Which of the following does NOT increase solubility rate for most substances?
Increase in temprature
Stirring
Increase in surface area (breaking apart the molecules first)
Decrease in surface area (adding a big piece of solute)
At what temperature will 80 grams of NaNO3 -- red line -- be dissolved?
0°C
10°C
20°C
30°C
How many grams of KClO3 -- brown line -- be dissolved at 70°C?
10 grams
20 grams
30 grams
40 grams
Which chemical has the LOWEST solubility at 50°C?
Ce2(SO4)3 -- dark pink line
NaCl -- light blue line
CaCl2 -- orange line
KClO3 -- brown line
What is the molarity of a solution that contains 7.50 moles of NaCl in 30.0 L of water
225 M
4 M
0.25 M
What is the molarity of a solution that contains 1.20 moles of CuCl2 in 4.0 L of water?
4.8 M
3.3 M
0.3 M
M1V1 = M2V2
How many liters of NaCl(aq) are needed to make a 0.25 M solution if the starting amount is 4.0 L of 0.5 M?
8 L
2 L
0.5 L
0.03 L
