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January 2020 Chemistry Regents Questions 41-50 Multiple Choice Test

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January 2020 Chemistry Regents Questions 41-50

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 two gas samples contain equal numbers of atoms?

What occurs when Na2SO4(s) is added to this system, increasing the concentration of SO4^2-(aq)?

What is a chemical name for the compound?

Which numbered interval represents the heat of reaction?

When comparing voltaic cells to electrolytic cells, oxidation occurs at the

Based on Table J, which metal is more active than tin, but less active than zinc?

In a titration, 10.0 mL of 0.0750 M HCl(aq) is exactly neutralized by 30.0 mL of KOH(aq) of unknown concentration. What is the concentration of the KOH(aq) solution?

Which emission causes the atomic number of a nuclide to decrease by 2 and its mass number to decrease by 4?

What is the unidentified element?

Which type of reaction is represented by each of these equations?

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