Counting atoms
Chemical Reactions
Vocabulary
Lewis Structures
Writing Chemical Formulas
100

The name of the number that tells us the number of molecules of a formula.

Coefficient.

100

The general formula for this type of reaction is 

Ax + B --> Bx + A

Single Displacement.

100

The type of chemical reaction that requires a carbon compound in the reactants is a __________________.

Combustion reaction.

100
Draw the Lewis structure for Silicon.

4 Valence Electrons, one on each side.

100
The chemical formula for Hydrogen and Oxygen.

H2O

200

The name of the number that tells us the number of atoms of a particular element in a formula.

Subscript.

200

Balance the chemical equation. 

FeCl3 + MgO ---> Fe2O3 + MgCl2 

2FeCl3 + 3MgO ---> Fe2O3 + 3MgCl2

200
1 mole is equal to _____________ particles, and also known as ______________.

6.02 x 1023, Avogadro's Number.

200

The Lewis dot diagram tells us the number of ____________ for that element.

Valence Electrons.

200

What is needed for a correct, stable chemical formula.

Oxidation numbers must add up to zero.

300

The number of Oxygen atoms in this formula: 2Al2(CO3)3

18 Oxygen Atoms. (3*3) * 2 = 18.

300

What type of reaction is Pb(NO3)2+2KI→2KNO3+PbI2 

Double Displacement Reaction

300
Chemical bonds are made by the part of the atom known as ________________________.

Valence Electrons.

300

Covalent bonds ____________ electrons while ionic bonds ____________ electrons.

Share, Transfer.

300
The oxidation number is found by...

Finding the charge on the atom after it reaches a full valence shell.

400

How many atoms are in the formula 2Al2Si2O5(OH)4

34 atoms.

400

When saying a chemical equation the arrow is said as this word. E.g. H2 reacts with O2 and _________ H2O, or water.

Yields.

400

The type of bond between two nonmetals.

Covalent bond.

400
Draw the lewis structure for H2O

On board.

400

What is the correct chemical formula for Aluminum and HPO42-.

Al2(HPO4)3.

500

How many atoms are in the formula: CH3COO(CH2)2CH(CH3)2 

23 atoms.

500

Li + H3PO4 ---> H2 + Li3PO4 Balance the chemical equation.

6Li + 2H3PO4 ---> 3H2 + 2Li3PO4

500

The name of the law that tells us we cannot create or destroy matter/mass in a chemical reaction.

Law of Conservation of Mass.

500

Draw the Lewis structure for AlCl3

On board.

500

When writing a chemical formula, which atom comes first? (Positively charged or negatively charged.)

The positively charged "cation" comes before the negatively charged "anion".

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