The document provides an overview of chemical reactions and equations, including examples of reactants and products. It highlights common observations in chemical reactions such as changes in state, color, gas evaluation, and temperature. Additionally, it covers the balancing of equations, electrolysis of water, and identifies oxidizing agents in various reactions.

1. Chemical Reaction & Equations Chemistry
N2 + 3H2 2NH3
Reactant Side Product Side
C C
H H
O O
RReactants Product
Common Observations of Chemical Reaction-
1. Change State of Substance
Eg: _________________________________________
2. Change in colour of Substance
Eg: __________________________________________
3. Evaluation of Gas
Eg: __________________________________________
4. Change in Temperature
Eg: __________________________________________
Balancing Chemical Equations
1. __ P + __ O2 __ P2O5
2. Na + H2O NaOH + H2O
3. Aluminum Bromide + Potassium Sulphate
Potassium Bromide + Aluminum Sulphate
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4. Hydrogen sulphide gas reacts with Oxygen gas to form
solid Sulphur and liquid water. (with their State)
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5. Iron(III) Oxide(s) + Carbon monoxide(g)
Iron(s) + Carbon dioxide (g)
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Correct atom count on Reactant & Product Side
C3H8 + O2 CO2 + H2O
Electrolysis of Water
________________________________________
a) Gas collected at Cathode ________________
b) Gas collected at Anode _________________
c) Amount of gas collected doubled that of
another electrode _________________
Identify Chemical Reaction & Write the Reaction
On heating green coloured Ferrous Sulphate
crystals, reddish brown solid is let & smell of gas
having odour of burning Sulphur is observed.
_________________________________________
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Identify Oxidizing Agent
1) 2Mg + O2 2MgO ___________
2) CuSO4 + Zn Cu + ZnSO4 ________
Why Does the Colour of Copper sulphate solution
change when an iron nail is dipped in it?
___________________________________________
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Silver Chloride is exposed to sunlight
Write a Chemical Reaction
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Use
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Precipitation Reaction
__________________________________
__________________________________
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Eg:
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2H2S + SO2 2H2O + 3S( )
( ) What information does this symbol gives
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