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January 2018 Chemistry Regents Questions 41-50 Multiple Choice Test

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January 2018 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 particle model diagram represents a chemical change?

Based on Table H, what is the vapor pressure of CH3COOH at 90°C?

The arrangement of particles is most ordered in a sample of

What is the net amount of heat released when two moles of C2H6(g) are formed from its elements at 101.3 kPa and 298 K?

Which compounds are isomers of each other?

A reaction between an alcohol and an organic acid is classified as

Why is potassium nitrate classified as an electrolyte?

When the concentration of hydrogen ions in a solution is decreased by a factor of ten, the pH of the solution

During which time interval does the substance exist as both a liquid and a solid?

Which change in reaction conditions will increase the frequency of effective collisions between reactant molecules?

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