Chemical Equation Symbols
Types of Reactions
Dot Models
Bonds
Balancing Chemical Equations
100
The left side of a chemical equation is called this.
What are the reactants
100
This type of reaction combines 2 or more chemicals into one.
What is composition.
100
A dot model shows the symbol and these around it
What are valence electrons.
100
This type of bond shares electrons.
What is Covalent
100
___ HCl +___Mg ----> ____MgCl + ____H2
What is 2, 2,2, 1
200
The arrow across points to these in a chemical equation.
What are the products.
200
This type of reaction has one divorce and one re marriage.
What is single replacement.
200
These are the outside orbit electrons.
What are valence electrons.
200
This type of bond valence electrons are given away or taken.
What is an ionic bond
200
____NO2 ----> ____O2 + ____N2
What is 2, 2, 1
300
This is the symbol for a gas being produced.
What is an arrow up.
300
This type of reaction has 2 divorces and 2 remarriages.
What is a double replacement.
300
The dot model for Carbon includes:
What is a C with four dots around it.
300
This is the number of hydrogen atoms that are needed to bond to oxygen.
What is 2
300
____P4 + ____O2 ---->____P2O3
What is 1, 3, 2
400
This is a symbol for a precipitate.
What is an arrow down.
400
This type of reaction splits one chemical into more than one.
What is decomposition.
400
The dot model for Chlorine
What is a Cl with 7 dots around it.
400
This is the number of lithium atoms needed to make chlorine happy.
What is one
400
____SeCl6 + ____O2 ----> ____SeO2 + ____Cl2
What is 1, 1, 1, 3
500
This is another symbol for a gas other than an arrow up.
What is a g in parenthesis
500
NaI + PbNO3 ---->NaNO3 + PbI
What is double replacement.
500
This is the maximum number of electrons in the 2nd and 3rd orbits of an atom.
What is 8
500
This is the number of hydrogen atoms needed to bond to carbon to make carbon happy.
What is 4
500
____CaCO3 ----> ____CaO + ____CO2
What is 1, 1, 1
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