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Chemistry, 22.06.2019 04:30
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
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Chemistry, 22.06.2019 07:50
Which of the following electromagnetic waves can create ions?
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Chemistry, 22.06.2019 08:30
Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains
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Chemistry, 22.06.2019 09:00
Identify the electromagnets with poles that are reversed from the electromagnet shown above
Answers: 3
Calculate the number of hydrogen atoms in a 120.0 g sample of ammonia (NH3).
Be sure your answer h...
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