A chemist wants to know if mixing two liquids, Substance A and Substance B, will result in a chemical reaction. The chemist pours 10 milliliters of Substance A into a beaker containing 30 milliliters of Substance B and observes what happens. Name four changes in the resulting mixture which would indicate that a chemical reaction occurred between Substance A and Substance B?

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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bcde is the incorrect answer it is a