11. A mixture of magnesium powder and lead (II) Oxide will react vigorously when heated but no reaction occurs when a mixture of magnesium oxide and lead powder are heated.
a) Explain the observation.
b Which of the two substances, magnesium or lead(II) Oxide is;
i) Oxidized in the reaction?
ii) Oxidizing agent?
C Which is the most reactive metal​

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

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