January 2023 Chemistry Regents Questions 1-10

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Which phrase describes the crystal structure and properties of two different forms of solid carbon called diamond and graphite?

Which list of elements includes a metal, a metalloid, and a noble gas?

Which substance contains elements chemically combined in a fixed proportion?

Which type of bond forms when electrons are equally shared between two atoms?

Which element has the lowest density at 298 K and 101.3 kPa?

Which property can be used to differentiate between a 50.-gram sample of solid potassium nitrate at STP and a 50.-gram sample of solid silver chloride at STP?

An excited potassium atom emits a specific amount of energy when one of its electrons moves from

Which element has chemical properties most similar to sodium?