Explain the Variation in radius of M3+ ion in group A
β...
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How many peaks will be present in a mass spectrum for brcl?
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How many significant figures are in the following numbers ? a. 0.0002030 b. 2.000 c. 2.008900 d. 145.00
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2.38g of black copper (ii) oxide is completely reduced by hydrogen to give copper and water. what are the masses of copper and water formed? ?
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Equal volumes of h2 and o2 are placed in a balloon and then ignited. assuming that the reaction goes to completion, which gas will remain in excess? 2h2 + o2 β 2h2o a. both are in equal proportion b. oxygen c. water d. hydrogen
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