ID Chemical Reactions Review and Practice

ID Chemical Reactions Review and Practice

ID Chemical Reactions

• 1st: Count the amount of Reactants and Products

• 2nd: Identify if the reactant or product is an element or compound

Multiple Choice

What side is the Reactant on in an equation?

Mg + Cl₂ --> MgCl₂

• left

• right

• both

Reactants and Products

• KNO₃ + AlCl₃ → Al(NO₃)₃ + KCl

• Reactants are the starting materials and on the left side (KNO₃ + AlCl₃)

• Products are the ending materials and on the right side (Al(NO₃)₃ + KCl)

Element and Compound

• K + NaCl → KCl + Na

• Element has ONE big letter and is found on the periodic table (EX: K and Na)

• Compound has TWO OR MORE big letters and is a combination of elements

Multiple Select

Which types of reaction(s) do not have two reactants and two products?

• Synthesis

• Decomponsition

• Double Replacement

• Single Replacement

• Combustion

Synthesis Reactions

Synthesis Reactions always have multiple reactants and ONLY ONE PRODUCT!

C + O₂ --> CO₂

CaO + H₂O --> Ca(OH)₂

Fe + O₂ --> FeO

S + O₂ --> SO₂

Decomposition Reaction

Decomposition Reactions always have ONE REACTANT and multiple products.

HgO --> Hg + O₂

K₂CO₃ --> K_2O + CO₂

KOH --> K₂O + H₂O

NaClO₃ --> NaCl + O₂

Multiple Choice

Which Reaction has two compounds on both the reactants and products?

• Synthesis

• Double Replacement

• Single Replacement

• Combustion

• Decomposition

Double Replacement

Double Replacement Reactions have two compounds (two big letters or two elements) on both the reactant and product side.

Examples:

KNO₃ + AlCl₃ → Al(NO₃)₃ + KCl

BaCl₂ + MgSO₄ → BaSO₄ + MgCl₂

Na₂SO₄ + SrCl2 → NaCl SrSO₄

Single Replacement

Single Replacement Reactions have one compound and one element (one big letter) on both the reactant and product side.

Examples:

K + NaCl → KCl + Na

Br₂ + LiF → F₂ + LiBr

Mg + AlCl₃ → Al + MgCl₂

Multiple Select

In a combustion reaction, which three elements are apart of the reaction?

• H

• Al

• ???

• C

• O

Combustion

Combustion Reactions have two reactants and two products but only contain C, H, O. They always have the products of H₂O and CO₂

Examples:

C₃H₈ + O₂ → CO₂ + H₂O

CH₃OH + O₂ → CO2 + H₂O

C₃H₆O + O₂ → CO₂ + H₂O

Multiple Choice

ID the following reactions:

C₃H₇OH + O₂ → CO₂ + H₂O

• Synthesis

• Single Replacement

• Combustion

• Double Replacement

• Decomposition

Multiple Choice

ID the following reactions:

F₂ + MgI₂ → MgF₂ + I_2

• Synthesis

• Single Replacement

• Combustion

• Double Replacement

• Decomposition

Multiple Choice

ID the following reactions:

Al + O₂ → Al2O₃

• Synthesis

• Single Replacement

• Combustion

• Double Replacement

• Decomposition

Multiple Choice

ID the following reactions:

AgNO₃ + NaCl → NaNO_3 + AgCl

• Synthesis

• Single Replacement

• Combustion

• Double Replacement

• Decomposition

Multiple Choice

ID the following reactions:

Zn + HCl → H₂ + ZnCl₂

• Synthesis

• Single Replacement

• Combustion

• Double Replacement

• Decomposition

Multiple Choice

ID the following reactions:

NH₄Cl → NH₃ + HCl

• Synthesis

• Single Replacement

• Combustion

• Double Replacement

• Decomposition