Chemistry
Chemistry, 01.11.2019 00:31, caprisun6779

How many mol of sodium corresponds to 1.0 x 10^15 atoms of sodium?

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Physics, 04.07.2019 20:00, tylerwoodson
“na2so3” represents sodium sulfite. what does the 4 mean in the formula 4na2so3? there are four atoms of sodium. there are four atoms of sodium sulfite. there are four molecules of sodium sulfite. there are four elements in sodium sulfite.
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Chemistry, 01.08.2019 08:50, algahimnada
“na2so3” represents sodium sulfite. what does the 4 mean in the formula 4na2so3? a. there are four atoms of sodium. b. there are four atoms of sodium sulfite. c. there are four molecules of sodium sulfite. d. there are four elements in sodium sulfite.
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Physics, 23.08.2019 23:10, maxpaz782
Asample of sodium-22 (z= 11) decays to neon-22 (z 10). the alf-life of this sodium isotope is 2.5 years. the masses of the sodium-22 and neon- 22 atoms are 21.994434 u and 21.991383 u, respectively. the initial mass of the sodium-22 sample is 5 mg. [2 points] what is the radius of the sodium-22 nucleus?
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Chemistry, 11.10.2019 01:00, annethelusma25
The first ionization energy of sodium is 496 kj/mol. the second ionization energy of sodium is 4562 kj/mol. which characteristic of sodium does this data explain? sodium atoms form cations instead of anions sodium ions have unbalanced charges sodium atoms form ions with 1- charges sodium atoms hardly ever form 2+ ions
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How many mol of sodium corresponds to 1.0 x 10^15 atoms of sodium?...

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