Terminology
Define 'fluid'
A fluid is anything that has no fixed shape and can flow. Usually it is a liquid or a gas.
What is a heterogenous mixture and provide an example.
Heterogenous = different parts and multiple components that can be separated. Ex) Pizza or salad
Salt
What are the three states of matter?
Solid, Liquid, Gas
List one point of the particle model of matter.
All matter is made up of tiny particles. Different substances are made up of different particles
The tiny particles of matter are always moving and vibrating.
The particles in matter may be attracted to each other or bonded together.
The particles have spaces between them.
Define 'slurry'
This mixture of water and solids is called a slurry.
What is a homogenous mixture and provide an example.
Homogenous= mixture that is blended and you cannot see each part of it. Ex) Salt water
Provide an example of a solvent.
Water
If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.
5 g/ml
Particles are vibrating fast and rubbing together.
A colloid is also a cloudy mixture but the droplets or tiny pieces are so small that they do not separate out easily.
True or false: Gold is a pure substance.
TRUE
Define what is means if a substance is concentrated.
The concentration of a solution tells you the amount of solute dissolved in a specific amount of solvent. (How strong something is)
Particles have space. They flow back and forth.
What is the formula for density?
D=M/V
Define 'pure substance'
A pure substance is ONE type of particle that cannot be broken down or separated.
True or false: Vinegar is a pure substance.
FALSE
If you wanted to increase the rate in which salt dissolves in water. What are two things you could do?
Stir faster/more and increase the water temp!
What happens to particles when they heat up?
They begin to separate and move faster.
Why does oil float on water?
Oil has a differing density which allows it to sit on top of water without falling to the bottom due to particle distribution being closer together than of water's
Define 'unsaturated'
A mixture where more solute (salt) can be dissolved into the solvent (water).
Is vodka a pure substance?
YES
What does it mean if a substance is super concentrated?
Contains far too much solute and can no longer be dissolved further.
Are suspension mixtures easy to separate?
What is the new car Ms. T got?
Supra MK4