Question

7. How would you identify that the gas coming out of reaction between vinegar and baking soda is carbon dioxide? 8. Define chemical formula. Write the formula of the compounds given below. hydrochloric acid, copper sulphate, sodium hydroxide, sulphuric acid, quicklime, calcium carbonate
9. What is rusting of iron? Give the word formula and molecular formula of rust.​

Answer 1

Answer:

7.When you combine the solid (baking soda) and the liquid (vinegar), the chemical reaction creates a gas called carbon dioxide. Carbon dioxide is invisible, except as the bubbles of gas you may have noticed when the vinegar and baking soda mixture began to fizz. This gas is what made the balloon inflate.

9.The chemical formula for rust is Fe2O3 and is commonly known as ferric oxide or iron oxide. The final product in a series of chemical reactions is simplified below as- The rusting of iron formula is simply 4Fe + 3O2 + 6H2O → 4Fe(OH)3. The rusting process requires both the elements of oxygen and water.

Explanation:

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Answer 2

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