Chemistry

Chemistry, 07.11.2019 16:31, jaylafennell101

If a substance changes color, what has most likely happened

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Physics, 20.07.2019 02:00, shell3181

Which properties can be used to determine whether a substance is a liquid or a plasma? check all that apply. a.)the mass of the substance b.)the container of the substance c.)the charge of the substance’s particles d.)the distance between the substance’s particles e.)the compressibility of the substance f.)the color of the substance

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Physics, 02.08.2019 04:30, randall10

Which properties can be used to determine whether a substance is a liquid or a plasma? check all that apply. the mass of the substance the container of the substance the charge of the substance’s particles the distance between the substance’s particles the compressibility of the substance the color of the substance

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Chemistry, 17.09.2019 20:00, sarinaneedshelp01

Plz its a test. 1 ) which of the following is a chemical property. a. ability to become magnetic b. ability to conduct electricity c. ability to conduct heat d. ability to react with acid 2 ) you heat two substances, a and b. both substances change color. when cooled, substance b returns to its original color, but substance a does not. what most likely happened? . a. physical change occurred in both substances b. a physical change occurred in substance a, and a chemical change occured in substance b. c. a chemical change occurred in substance a, and a physical change occurred in substance b. d. a chemical change occurred in both substances 3 ) how many grams are in 2.5 pound sample? express your answer in scientific notation with three significant figures. ( 1 pound= 453.592 grams). a. 2.26 • 10^2 g b. 1.13 • 10^3 g c. 2.3 • 10^3 g d. 2.27 • 10^3g you

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Chemistry, 12.10.2019 02:30, jaymoore9542

Ascientist is trying to identify an unknown substance. the answer to which of the following questions would give the scientist information about a chemical property of the substance? a. is it possible to change the shape of the substance? b. does the substance corrode when left in water? c. what color is the substance? d. at what temperature does the substance melt?

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