Balancing Chemical Formulas

1

100

How can you identify a combustion reaction?

Varying Answers

200

CH3OH + O2 -> 2CO2 + H2O

What is 2CH3OH + 3O2 -> 2CO2 + 4H2O?

300

C5H12 + O2 -> CO2 + H2O

What is C5H12 + 8O2 -> 5CO2 + 6H2O?

400

C3H8 + O2 -> CO2 + H2O

What is C3H8 + 5O2 -> 3CO2 + 4H2O?

500

Oxygen reacts with a substance and releases energy in the form of heat and light

What is Combustion?

2

100

What is a general formula for Synthesis equations?

A+B -> AB

200

Li+ Cl2 -> LiCl

What is 2Li+ Cl2 -> 2LiCl?

300

Na + Cl2 -> NaCl

What is 2Na + Cl2 -> 2NaCl?

400

Na + N3 -> NaN

What is 3Na + N3 -> 3NaCl?

500

When there are two or more reactants and the product is one compound

What is Synthesis?

3

100

What is a general formula for decomposition?

AB -> A+B

200

KClO3 -> KCl + O2

What is 2KClO3 -> 2KCl + 3O2?

300

H2O2 -> H2O + O2

What is 2H2O2 -> 2H2O + O2?

400

Al2O3 -> Al + O2

What is 2Al2O3 -> 4Al + 3O2?

500

A compound is broken down by electricity, light, or heat into two or more simpler products

What is Decomposition?

4

100

What is the general formula for single replacement reactions?

A+BC->AC+B

200

K + ZnCl2 -> KCl +Zn

What is 2K + ZnCl2 -> 2KCl +Zn?

300

Li + H2O -> LiOH + H2

What is 2 Li + 2 H2O -> 2 LiOH + H2?

400

O2 + CS2 -> CO2 + S2

What is O2 + CS2 -> CO2 + S2?

500

An element or diatomic plus a compound yields a new element or diatomic plus a new compound

What is Single Replacement?

5

100

What is the basic formula for Double Replacement reactions?

AC+BD -> AD+BC

200

Ca(OH)2 + HCl -> CaCl2+ H2O

What is Ca(OH)2 + 2HCl -> CaCl2+ 2H2O?

300

H3PO4 + LiOH -> Li3PO4 + H2O

What is H3PO4 + 3LiOH -> Li3PO4 + 3H2O?

400

NaOH + Fe(NO3)3 -> Fe(OH)3 + NaNO3

What is 3NaOH + Fe(NO3)3 -> Fe(OH)3 + 3NaNO3?

500

A compound plus a compound yields a new compound plus a new compound

What is Double Replacement?