LESSON - Classifying and Balancing Reactions

Classifying

Chemical

Reactions

Make sure you know what side the

REACTANTS and PRODUCTS are on.

Multiple Select

Identify the products in the chemical equation below

CuCO3 >> CuO + CO2

• copper (II) carbonate

• copper (II) oxide

• carbon dioxide gas

• copper (I) oxide

Classifying Reactions

The KEY to classifying reactions is KNOWING

what to LOOK for in the reaction

​What to look for?

​One Product!

One Reactant

​What to look for?

Compound + Element on both sides

​What to look for?

Compounds on both sides

​What to look for?

​Acids start with hydrogen (H)

​Bases end in hydroxide (OH)

​What to look for?

​What to look for?

​Oxygen gas as a reactant and carbon dioxide and water as products

Multiple Select

Click on all the SYNTHESIS reactions

• A + B → AB

• 4 Fe (s) + 3 O2 (g) →

  2 Fe2O3 (s)

• 2 KCl(s) → 2 K(s) + Cl2(g)

Multiple Select

AgNO3 + NaCl → AgCl + NaNO3

• double replacement

• acid/base reaction

• single replacement

• combustion reaction

Multiple Select

Find ALL the combustion reactions

• C3H5N3O9 >>

  CO2 + H2 + N2 + O2

• CH3CH3+O2 >> CO2+H2O

• C10H8+O2 >> C8H4O3+H2O

Multiple Select

Click on all the single replacement reactions

• Zn(s) + 2 HCl(aq) →

  ZnCl2(aq) + H2(g)

• C2H5OH + 3 O2 →

  2 CO2 + 3 H2O

• 2 Fe2O3 (s) + 3 C (s) →

  Fe(s) + CO2 (g)

Multiple Select

NaOH + HCl → NaCl + H2O

• double replacement

• combustion

• neutralization

• acid/base

Multiple Select

Find ALL the decomposition reactions

• CuCO3 >> CuO + CO2

• C6H12O6 >>

  C2H5OH + CO2

• Co + Cl2 >> CoCl2

Balancing Reactions

COEFFIECIENTS

are the ONLY NUMBERS used to BALANCE EQUATIONS

(the BIG NUMBER IN FRONT)

Why does nature balance equations?

The Law of Conservation of Matter/Mass

- states that atoms cannot be created or destroyed -

Multiple Choice

SnO2(s) + 2 H2(g) → Sn(s) + 2 H2O(g)

• balanced

• not balanced

Dropdown

​

Select answer

C4H10 +

Select answer

O2 =

Select answer

CO2 +​

Select answer

H2O