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Card 6

Front

A compound consists of 50% sulphur and 50% oxygen by mass. What is its empirical formula?

Back

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Card 7

Front

What is the mass percentage of oxygen in nitric oxide (NO)?

Back

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Card 8

Front

What type of radioactive process could be shown in the following (incomplete) equation? 125 53I →125 52Te

Back

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Card 9

Front

What is the percentage yield if 6 g lithium chloride is obtained from 20 g lithium hydroxide in the following reaction? LiOH + KCl = LiCl + KOH

Back

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Card 10

Front

How many electrons in an atom can have n = 5, l = 3?

Back

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Card 11

Front

What is the Aufbau principle?

Back

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Card 12

Front

The electron configuration for manganese is:

Back

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Card 13

Front

The element with the electron configuration 1s2,2s2,2p6,3s2,3p6,4s2,3d10 is

Back

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Card 14

Front

The quantum numbers n = 4, l = 1, ml = 1, s = ½ refer to an electron in which orbital?

Back

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