A
B
C
D
E
100
A substance that is the same throughout
A pure Substance
100
Pure substances contain only one type of _______
Matter
100
What are 2 types of Pure Substances?
Elements and Compounds
100
What are the two types of mixtures?
Homogeneous and Heterogeneous
100
Elements are composed of the same type of _____
Atom
200
A substance that contains two or more different types of matter
A mixture
200
Homogeneous mixtures contain two or more...
Pure Substances
200
Apple juice is a _____
a solution or homogeneous mixture
200
What are the methods of separating mixtures?
Magnetism, Evaporation, Sifting, Distillation, Filtration
200
How does magnetism as a method of separating mixtures work?
A magnet attracts one substance in a mixture, leaving behind the substance that is not attracted to it, therefore separating them.
300
If you can easily see the different parts that make up a mixture, you know that it is a __________ mixture
If you can easily see the different parts that make up a mixture, you know that it is a heterogeneous mixture.
300
Homogeneous means that every part of the material is...
The same throughout
300
What makes a substance soluble?
A substance is soluble if it can dissolve into another substance.
300
List three of the five major points in the particle theory.
1. All matter is made up of tiny particles.
2. The particles are always moving.
3. There is space between all particles.
4. Adding heat makes particles move faster.
5. All particles in a pure substance are the same.
Different substances are made up of different particles.
300
What separation methods are used in making maple syrup?
We use evaporation to reduce the water content to no more than 34%. The water is boiled away and we are left with the sugary syrup. The syrup then undergoes filtration, whereby debris, such as wood bits and insects and even some micro-organisms, such as bacteria, are removed.
400
Beach sand is a _____ mixture
heterogeneous
400
Which of the following is a heterogeneous mixture?
A) Oil and Water
B) Pure water
C) Helium
D) Pure gold
A) Oil and Water
400
Kool-aid is a _______ mixture
homogeneous
400
Explain two ways to increase the rate that a solute can dissolve into a solvent.
The mixture could be heated.
The mixture could be stirred.
400
What is the substance that is dissolving called?
Solute
500
Which of the following is NOT a heterogeneous mixture?
A) Milk and Cereal
B) White Sugar
c) Pizza
D) Concrete
B) White Sugar
500
_________ mixtures are mixed so that their properties are blended and every part of the mixture is the same.
Homogeneous mixtures are mixed so that their properties are blended and every part of the mixture is the same.
500
What is Chemistry?
Chemistry is the study of matter and its changes.
500
What is the substance that is doing the dissolving called?
Solvent
500
The quantity of solute in a solution is ________
Concentration