Question

$\large{\underline{\underline{\pmb{\sf{\color{blue}{Question:}}}}}}$ Translate the following chemical changes given in (i), (ii) and (iii) in the form of a chemical equation.
(i) Magnesium ribbon is burnt in the presence of oxygen gas to produce a white solid magnesium oxide
(ii) Solid calcium carbonate is heated to produce solid calcium oxide and carbon dioxide gas is released.
(iii) Nitrogen gas reacts with gaseous oxygen to produce gaseous nitrogen dioxide.

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Answer 1

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★★White powder magnesium oxide (MgO)

★★When CaCO3 is heated, the calcium oxide called quicklime and carbon dioxide as a gaseous product is formed. Hence, when CaCO3 is heated it decomposes to give calcium oxide and carbon dioxide.

★★The super heated air breaks apart nitrogen molecules (N2) and oxygen molecules (O2), which causes nitrogen and oxygen atoms to bond. After nitrogen monoxide gas is generated, it immediately reacts with another oxygen molecule to form nitrogen dioxide (NO2).

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