Question

6. What information do we get from a balanced
chemical equation?

7. What do
you mean by photochemical
decomposition? Explain giving examples.

8. Giving suitable examples differentiate between
single displacement and double displacement
reactions.
Aɴsᴡᴇʀ Aɴʏ Iғ ʏᴏᴜ ᴋɴᴏᴡ.ᴘʟᴇᴀsᴇ ᴅᴏ ɴᴏᴛ sᴘᴀᴍ ᴀɴᴅ ᴄᴏᴍᴍᴇɴᴛ ғᴏʀ ᴛʜɪs ᴘɪᴄ.​

Answer 1

Answer:

6. A balanced chemical equation can provide the following information : The reactants and products through their symbols and formulae. The ratio of molecules of reactants and products. As molecular masses are expressed in unified mass (u), the relative masses of reactants and products are known from the equation.

7. Photo decomposition is a chemical reaction in which a substance is broken down into simple substances by exposure to light (photons). Thermal decomposition reaction (Thermolysis) Decomposition of calcium carbonate:Calcium carbonate (lime stone) decomposes into calcium oxide (quick lime) and carbon dioxide when heated.

8. In a displacement reaction, a more reactive element replaces a less reactive element from a compound. In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds. In a displacement reaction, one displacement takes place

Answer 2

Step-by-step explanation:

• A balanced chemical equation can provide the following information : The reactants and products through their symbols and formulae. The ratio of molecules of reactants and products. As molecular masses are expressed in unified mass (u), the relative masses of reactants and products are known from the equation.
• A decomposition reaction where decomposition takes place in the presence of light is known as photochemical decomposition reaction. Decomposition of hydrogen peroxide in the presence of light, hydrogen peroxide decomposes into water and oxygen. When AgCl exposed into light it breaks into Ag and Cl.
• In a displacement reaction, a more reactive element replaces a less reactive element from a compound. In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds. In a displacement reaction, one displacement takes place

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