Your Turn 6.21 Damage to Marble Marble can contain both magnesium carbonate and

Question

Your Turn 6.21 Damage to Marble Marble can contain both magnesium carbonate and calcium carbonate. a. write the chemical equation for the reaction of acidic rain with magnesium carbonate. b. Marble never contains sodium bicarbonate. Explain why.

Consider This 7.1 Your Opinion of Nuclear Power a. Given a choice between purchasing electricity generated by a nuclear plant or by a coal-burning plant, would you choose one over the other? Explain. b. What circumstances, if any, would change your position on the use of nuclear power for generating electricity?

Your Turn 7.28 Strontium–90 Sr–90 is one of the fission products of U–235. It forms in a reaction that produces three neutrons and another element. Write the nuclear equation. Hint: Remember to include the neutron that induces the fission of U–235.

Explanation / Answer

6.21 a). MgCO3 + 2H+ gives Mg2++ CO2 + H2O

it reacts with acid rain to form carbon dioxide and water.

6.21 b). generally, marble consists magnesium carbonate and calcium carbonate. Their structure is similar (calcite) and water insoluble. Whereas sodium bicarbonate is water soluble and in the presence of water it will be washed out.

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