: Which of the following substances are necessary for the rusting of iron to occur?, Only oxygen, Only water, Both oxygen and water, Only sunlight, The process of depositing a thin layer of zinc on iron objects to protect them from rusting is called:, alloying, galvanization, annealing, crystallization, botha &b, onl c and e, When sodium metal reacts with water, it produces hydrogen gas and forms a solution that is:, basic in nature, acidic in nature, neutural, Why does a copper vessel develop a dull green coating when exposed to moist air for a long time?it r, it reacts only in oxgen, it reacts moisture and carbon dioxde in the air, BONUS QUESTION :Which of the following metals reacts so vigorously with air and water that it catches fire if kept in the open?, sodium, iron, gold, sliver
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