4.7 Types of Reactions

conjugate acids and bases

100

What is the conjugate acid of H₂O?

H₃O⁺

200

What is the conjugate acid of NH₃?

NH₄⁺

300

What is the conjugate base of HSO₄^-?

SO₄

400

What is the conjugate base of HPO₃^2-?

PO₃

500

What is the conjugate acid of HCO₃^-?

H₂CO₃

identifying reactions

100

What type of reaction is the following equation: 

Mg + O₂ -> MgO

What is composition? 

200

 

What is decomposition?

300

What type of reaction is the following equation:

Zn + 2HCl -> ZnCl2 + H2

What is single replacement?

400

What type of reaction is the following equation:

HClO4 + NH3 -> NH4+ + ClO4-

What is acid/ base?

500

What type of reaction is the following equation: 

C2H5OH + O2 —> H2O + CO2 

What is combustion? 

oxidation and reduction

100

What substance was reduced in the following equation:

2 C₂H₂ + 5 O₂ —> 2 H₂O + 4 CO₂

Oxygen 

200

What substance was oxidized in the following equation:

Fe₂O₃ + CO —> 2 Fe + 3 CO₂

Carbon 

300

Identify the elements that are oxidized and reduced in the following reaction: 

PbO + CO —> Pb + CO₂

Pb: reduced

C: oxidized 

500

Assign oxidation numbers to the atoms in the following: 

Fe₃O₄ 

Fe: 8/3

O: -2 

half reactions

300

Balance using the standard RedOx method: 

Cu + HNO₃ + H⁺  —> Cu²⁺  + NO + H₂O

3 Cu + 2 HNO₃ + 6 H⁺ —> 3 Cu²⁺ + 2 NO + 4 H₂O

500

Balance the following using the half reaction method: 

As₂O₃ + NO₃^- —> H₃AsO₄ + N₂O_{3 (acidic)}

2 H⁺ + 2 H₂O⁺ + As₂O₃ + 2 NO₃^- —> 2 H₃AsO₄ + N₂O₃

writing and balancing equations

100

Write the reaction that takes place between ammonia, NH3, and acetic acid, HCH3COO

NH3 + HCH3COO —> NH4+  + CH3COO-

300

Caffeine, C₈H₁₀N₄O₂, acts as a base when it is dissolved in water. Write the equation for this equation. 

C₈H₁₀N₄O₂ + H₂O —> OH^- + HC₈H₁₀N₄ O₂