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“We must trust to nothing but facts: These are presented to us by Nature, and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.” ― Antoine Lavoisier, Elements of Chemistry

Thursday, 19 March 2015

Balancing Chemical Equations Worksheet

Balance these following chemical equations. show your working!

1.    ___Li2O  + ___H2O à ___LiOH
2.    ___CaC2  + ___H2O à ___C2H2  + ___Ca(OH)2
3.    ___Fe(OH)3 à ___Fe2O3  + ___H2O
4.    ___Pb(NO3)2  à ___PbO  + ___NO2  + ___O2
5.    ___BaO  + ___H2O à ___Ba(OH)2
6.    ___Ca  + ___AlCl3 à ___CaCl2  + ___Al
7.    ___NH3  + ___NO à ___N2  + ___H2O
8.    ___H3PO3 à ___H3PO4   + ___PH3
9.    ___Fe2O3   + ___C à ___CO  + ___Fe

10. ___FeS  + ___O2 à ___Fe2O3  + ___SO2

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