Chemistry, 19.12.2020 04:30 Poohpooh8548
*WILL GIVE A BRAINIEST TO THE CORRECT ANSWER & 15 POINTS*
A sodium atom has the following electron configuration: 2-7-1-1. This is the excited state because the electron is moving from
A.) 4th shell to 2nd shell
B.) 2nd shell to 4th shell
C.) 3rd shell to 2nd shell
D.) 2nd shell to 3rd shell
Answers: 3
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H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?
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Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
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What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.
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8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
*WILL GIVE A BRAINIEST TO THE CORRECT ANSWER & 15 POINTS*
A sodium atom has the following ele...
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