A. A main group element with the valence electron configuration 4s2 is in periodic group ( ). It forms a monatomic ion with a charge of ( ). B. A main group element with the valence electron configuration 3s23p5 is in periodic group ( ). It forms a monatomic ion with a charge of ( ).
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What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5
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Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
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Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
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Chemistry, 23.06.2019 03:00
Can someone me out on this question for my national 5 chemistry homework
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A. A main group element with the valence electron configuration 4s2 is in periodic group ( ). It for...
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