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June 2018 Chemistry Regents Questions 31-40 Multiple Choice Test

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June 2018 Chemistry Regents Questions 31-40

Use your knowledge of Chemistry to answer all questions in the data set. You will need your Chemistry reference tables and a calculator to answer some of the questions. Good Luck.

NOTE: If the question contains an image, clicking on it will enlarge it for easier viewing. If there is a "More Info" link after the question, clicking it will display additional content related to the question.

Which elements are present in this mixture?

Each line in the spectra represents the energy

Which ion has a charge of 2-?

What is the approximate mass of an atom that contains 26 protons, 26 electrons and 19 neutrons?

Which electron configuration represents a potassium atom in an excited state?

What is the total number of neutrons in an atom of K-42?

What is the number of moles of C that must completely react to produce 2.0 moles of C2H6?

Which type of chemical reaction is represented by the equation?

Based on this table, which statement describes how two of these elements can be differentiated from each other?

Which particle diagram represents a mixture?

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