Show:
Solubility
Viscosity
Density
Buoyancy
100

In a mixture of sugar and water, which is the solute and which is the solvent?

Solute = sugar

Solvent = water

100

Fluid includes these two states of matter.

Liquid and gas

100

Is a "crowded" substance more or less dense than one that is more spacious?

Crowded = more dense

100

What is the name of the upward force exerted on an object floating on a fluid?

Buoyant force!

200

Are solutions elements, compounds, homogeneous mixtures, or heterogeneous mixtures?

Homogeneous mixtures

200

Does a fluid with a high viscosity flow slowly or quickly?

Slowly

200

Would increasing the concentration of the solution make the solution more or less dense?

More dense

200

If the buoyant force is less than gravity, the object will ________.

SINK

300
You were adding a solute to water (the solvent) in a beaker and it was dissolving nicely. You added a little bit more solute and suddenly it started forming crystals in the beaker. This is now called a __________ solution.
Supersaturated!
300

To INCREASE the viscosity of a GAS, what should you do to the temperature?

INCREASE the temperature (this increases collisions between particles which makes it harder to flow).

300

What is the formula for density?

Density = mass / volume

300

If you increase the surface area, are you raising or lowering it's average density?

Lowering!

400

What are at least 3 of the factors that affect solubility?

Size of solute, temperature, agitation, amount of solute, amount of solvent

400

You want to increase the viscosity of a liquid. To do this you must 1) ________ temperature. 2) Why?

1) DECREASE 2) this increases attractive forces between liquid particles, making it more viscous (flows more slowly).

400
Machine oil has a density of 0.9 g/mL. Ethyl alcohol has a density of 0.8 g/mL. 1) Which has greater density? 2) Which will float on top of the other one?
1) Machine oil has greater density (0.9 > 0.8) 2) Therefore, knowing that denser things SINK, the ethyl alcohol will FLOAT on top of the machine oil, because it's density is lower.
400

What is the name of the tool used to measure the density of a liquid?


A hydrometer!

500

What are 5 of the 6 methods for separating mixtures? 

For undissolved solids: manual separation, filtration, and magnetism

For dissolved solutions: evaporation, distillation, and fractional distillation

500

You emptied a 20mL of oil over a frying pan in 10 seconds. What is the flow rate of the oil?

Flow rate = mL/second = 20mL/10seconds = 2mL/s

500

An object has a mass of 50 grams and a volume of 100 mL. What is the density?

D = 50g / 100 mL = 0.5 g/mL

500

According to Archimedes' Principle, the buoyant force acting on a submerged object equals ____________?

the force of gravity of the fluid displaced by the object.