Solid, Liquid, Gas & Mixtures
Elements
Types of Reactions
Endothermic & Exothermic & Compound
Valence Electrons
100
What is a Heterogenous mixture?
You can't see the different parts of the mixture.
100
'H' is the symbol for what element?
Hydrogen
100
What is the sign for Composition?
A+B -> AA
100
What is exothermic?
Final energy is less than it's beginning.
100
How many valence electrons do "C" have?
4
200
What is a Homogenous mixture?
You can see different parts of the mixture.
200
'Na' is the symbol for what element?
Sodium
200
What is the sign for Decomposition?
AB -> A+B
200
What is Endothermic?
Final energy is greater than it's beginning.
200
How many valence electrons does "Kr" have?
8
300
How do Solids react with each other?
They compact together.
300
'Ti' is the symbol for what element?
Titanium
300
What is the sign for single replacement?
A+BC -> B+AC
300
What is one compound?
Covalent compound
300
How many valence electrons do "He" have?
2
400
How do Liquids react with each other?
Liquids flow past each other.
400
'Cl' is the symbol for what element?
Chlorine
400
What is the sign for Double Replacement?
AB + CD -> AD + CB
400
CaTi : Compound or Element?
Compound
400
How many valence electrons do " Mg" have?
2
500
How do gases react with each other?
They move in a straight line.
500
'Au' is the symbol for what element?
Gold
500
What is the sign for Combustion?

CH + O -> CH2 + H2O

500
ArK : Compound or Element
Compound
500
How many valence electrons do "Se" have?
6
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