Lavoisier made an important contribution to chemistry by a) being the first to use the term "atom" b) describing the orbits of electrons c) discovering the proton d) identifying substances by weight

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Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry