Balancing/Types of Equations

Vocabulary

100

The inputs of a chemical reaction are called this

Reactants

200

A reaction in which energy is absorbed

Endothermic

300

a number, which is always positive, that is placed in front of the parts of a chemical reaction to indicate how many units are involved

Coefficient

400

small-sized number on the bottom right of an element's symbol; it refers to the number of atoms of the element

Subscript

500

The kind of reaction in which a substance rapidly combines with oxygen to form one or more oxides

Combustion

Balancing

100

___ Na + ___ O₂ ---> ___ Na₂O

4 Na + O₂ ---> 2 Na₂O

200

___ NH₄OH + ___ H₃PO₄ ---> ___ (NH₄)₃PO₄ + ___ H₂O

 3 NH₄OH +  H₃PO₄ ---> (NH₄)₃PO₄ + 3 H₂O

300

___ AgI + ___ Fe₂(CO₃)₃   --->  ___ FeI₃ + ___ Ag₂CO₃

6 AgI +  Fe₂(CO₃)₃   --->  2 FeI₃ + 3 Ag₂CO₃

400

___ Na + ___ NaNO₃ ---> ___ Na₂O + ___ N₂

10 Na + 2 NaNO₃ ---> 6 Na₂O +  N₂

500

___C₁₀H₂₂ + ___ O₂ ---> ___ CO₂ + ___ H₂O

2 C₁₀H₂₂ + 31 O₂ ---> 20 CO₂ + 22 H₂O

Identify Reaction

100

P₄ + 3 O₂ ---> 2 P₂O₃

Synthesis

200

O₃ ---> O + O₂

Decomposition

300

2 AgNO₃ + Cu ---> Cu(NO₃)₂ + 2 Ag

Single Displacement

400

 2 Na +  2 H₂O --->  2 NaOH +  H₂

Single Displacement

500

C₃H₆O + 4 O₂ ---> 3 CO₂ + 3 H₂O

Combustion

Predict Products

100

K + Cl₂ --->

Predict the products and balance 

2K + Cl₂ ---> 2KCl

200

Li + N₂ --->

Predict the products and balance

6Li + N₂ ---> 2Li₃N

300

C₄H₆ + O₂ --->

Write the products and balance the equation

2 C₄H₆ + 11 O₂ ---> 8 CO₂ + 6 H₂0

400

Pb(NO₃)₂ + KOH --->

Predict the products and balance

Pb(NO₃)₂ + 2KOH ---> Pb(OH)₂ + 2KNO₃

500

HCl + Mg(OH)₂ ---> 

Predict the products and balance

2HCl + Mg(OH)₂ ---> MgCl₂ + 2H₂O

6.3

100

Some reactions are reversible, meaning that the reaction proceeds in both directions. When no net change occurs in the amount of reactants and products, a system is said to be in 

Equilibrium

200

is a substance that speeds up the rate of a reaction without being permanently changed or used up itself.

Catalyst

300

The amount of energy particles must have when they collide is called this

Activation energy

400

An insoluble product that is formed after a chemical reaction 

Precipitate

500

In which direction would this equation shift if I were to remove some carbon dioxide?

CaCO₃ ⇋ CaO + CO₂ 

To the right; if CO₂ is removed, the reaction will favor more production of CO₂ to reestablish equilibrium, the reaction will favor the decomposition of limestone, producing more lime and CO₂