Chemistry, 12.07.2019 13:30 arielpraczko1
How many atoms of ca are present in 8.6 mg? the atomic weight of ca is 40.08 amu?
Answers: 1
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Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
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Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?
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Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
How many atoms of ca are present in 8.6 mg? the atomic weight of ca is 40.08 amu?...
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