Balancing Chemical Equations

Types of Reactions

100

 N2O5 + H2O → HNO2

Synthesis

200

 H2BO2 → H4B6O11 + H2O

Decomposition

300

 H2SO4 + Fe → H2 + FeSO4

Single replacement

400

C6H12 + 9O2  6CO2 + 6H2O

Combustion

500

AlCl3 + Na2SO4 → Al2(SO4)3 + NaCl

Double replacement

level 1

100

___H₂O+___SO₃-> ___H₂SO₄

1H₂O+1SO₃->1H₂SO₄

200

___C₂H₄+___O₂->___CO₂+___H₂O

1C₂H₄+___3O₂->2CO₂+2H₂O

300

___NaBr+___H₃PO₄->___Na₃PO₄+___HBr

3NaBr+1H₃PO₄->1Na₃PO₄+3HBr

400

___Mg+___Fe₂O₃->___Fe+___MgO

3Mg+1Fe₂O₃->2Fe+3MgO

500

___PbSO₄->___PbSO₃+___O₂

2PbSO₄->2PbSO₃+1O₂

level 2

100

___ZnSO₄+___Li₂CO₃->___ZnCO₃+___Li₂SO₄

1ZnSO₄+1Li₂CO₃->1ZnCO₃+1Li₂SO₄

200

___S₈+___O_{2->___}SO₂

1S₈+8O_2->8SO₂

300

___Fe+___AgNO_3->___Fe(NO₃)₂+___Ag

__1_Fe+_2__AgNO_3->_1__Fe(NO₃)₂+_2__Ag

400

___Agl+___Fe₂(CO₃)₃->___Fel₃+___Ag₂CO₃

_6__Agl+_1__Fe₂(CO₃)₃->__2_Fel₃+_3__Ag₂CO₃

500

___V₂O₅+___CaS->___CaO+___V₂S₅

_1__V₂O₅+__5_CaS->_5__CaO+_1__V₂S₅

level 3

100

___NH₃+___I₂->___N₂I₆+___H₂

_2__NH₃+_3__I₂->__1_N₂I₆+__3_H₂

200

___H₂SO₄+___NH₄OH->___H₂O+___(NH₄)₂SO₄

_1__H₂SO₄+_2__NH₄OH->_2__H₂O+_1__(NH₄)₂SO₄

300

___H₂SO₄+___B(OH)₃->___B₂(SO₄)₃+___H₂O

__3_H₂SO₄+_2__B(OH)₃->_1__B₂(SO₄)₃+__6_H₂O

400

___Mn(NO₂)₂+___BeCl_{2->___}Be(NO₂)₂+___MnCl₂

_1__Mn(NO₂)₂+__1_BeCl_{2->_1__}Be(NO₂)₂+__1_MnCl₂

500

___AgBr+___GaPO₄->__Ag₃PO₄+___GaBr₃

__3_AgBr+__1_GaPO₄->_1_Ag₃PO₄+__1_GaBr₃

Miscellaneous

100

What does synthesis mean

to build

200

What does decomposition mean

to break

300

What does a combustion reaction always require

 Oxygen, Carbon Dioxide, and Water 

400

What is single replacement

A single element replaces an element that’s part of a compound

500

How many elements are involved in a double replacement reaction

2