Students in chemistry lab have been given the assignment to identify an unknown compound using the flame test procedures. the compound they are testing is a white crystal that emits a greenish light when placed into the flame. the unknown compound most likely contains a) barium. correct answer b) lead. c) sodium. d) strontium.
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Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 10:30
Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
Answers: 2
Chemistry, 22.06.2019 14:30
How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.
Answers: 2
Students in chemistry lab have been given the assignment to identify an unknown compound using the f...
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