Mixtures
Saturation
Periodic Table
Elements
Metals
100
What is a mixture?
A substance with two or more things put together.
100
How do you know that something is saturated?
The solid no longer dissolves in the liquid.
100
How is the periodic table organized?
According to the element's chemical properties.
100
What is an atom?
An atom is the smallest unit of matter
100
Name a pure metal?
Copper, Gold, Silver
200
Three common states of matter are
Solid, Liquid, and gas
200
What is it called when your blood is saturated by nitrogen?
Decompression or the bends
200
What is a chemical reaction?
When you mix two substances, and a change occurs.
200
What is a molecule? Name one
A combination of atoms.
200
What is an alloy? Name one.
A mixture of metals. Alnico
300
What is a solution? Give two examples.
A solution is is when a solid dissolves and the liquid remains clear.
300
What is the difference between two different salts and their saturation?
Epsom salts require more salt to dissolve than table salt.
300
What is the most abundant element in the human body?
oxygen
300
Name a chemical equation.
C + O2= CO2
300
Metals have what imortant chemical property.
All metals conduct heat and electricity.
400
A mixture bubbles and turns milky white. What happened?
A Chemical reaction
400
How do you make a solution unsaturated?
Add more water.
400
In a chemical reaction, which of the four happens. Name two.
New elements formed New atoms form new substances form new molecules form
400
How many atoms are in one molecule of water?
3
400
When a metal is exposed to oxygen, it does what?
oxidizes and rusts
500
What three ways are used for separating mixtures?
Funnel, Screen, and Evaporation
500
How do you create a supersaturated solution? What does the solution come out as?
Heat up the solute with the solvent and keep adding solute or sugar until it no longer dissolves. Then cool it. The solution comes out as crystals.
500
What is evidence of a chemical reaction?
Precipate forms Temperature change Gas produced
500
In a chemical equation the number of atoms in the reactants must equal the number of atoms in the products? True or False
True
500
What is the most abundant element in earth?
Iron
M
e
n
u