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Which of the following compounds are covalent:
(1) H2
(2) CaO
(3) KCL
(4) Na2S
Ans: H2
give two reasons why it is necessary to ionize the chromium atoms
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Which carbonate mineral reacts readily with cool dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas? Many carbonate minerals.
Why magnesium does not impart any colour to Bunsen flame while calcium does
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The ratio of the concentration of the products raised to its stoichiometric coefficient to the concentration of the reactants raised to its stoichiometric coeff. Mostly, higher th
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