ICSE Class 8: Types of Chemical Reactions Videos | Chemical Reactions

•   Balance the following  chemistry equations :   1) Fe + O2 -> Fe2O3 2) H2 + O2 -> H2O 3) Na + Cl2 -> NaCl 4) N2 + H2 -> NH3 5)  CH4 + O2 -> CO2 + H2O
• what is the valency of Copper?
• Why we use copper of charge +2 charge in most of the reactions while there is copper of charge +1 is also there.
• The composition of a substance ________________ during chemical change
• KCLO3 when given heat forms KCL + O2 How does it form
• Why does the sodium sulphate solution and barium chloride solution reacts as white solution.
• Write balanced molecular equation of  Calcium + water ? calcium hydroxide + hydrogen
• What are double displacement reactions
•  the white and anhydrous salt that become green upon addition to water is ---
• Explain what happens when A mixture of hydrogen and nitrogen is passed over heated iron catalyst A mixture of carbon monoxide and sulphur vapours are passed in a hot tube Carbon monoxide reacts with chlorine in presence of sunlight and platinum

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