Chemistry, 21.07.2019 21:00, vdirectioner3847
If 0.158 g of a white, unknown solid carbonate of a group 2a metal (m) is heated and the resulting co2 is transferred to a 285 ml sealed flask and allowed to cool to 25 degrees celsius, the pressure in the flask is 69.8 mmhg. what is the identity of the carbonate?
Answers: 1
Chemistry, 22.06.2019 03:30, acaciacoats
The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.
Answers: 2
Chemistry, 22.06.2019 18:00, jalenclarke25
What volume would 2.25 moles of ne has occupy at stp?
Answers: 1
If 0.158 g of a white, unknown solid carbonate of a group 2a metal (m) is heated and the resulting c...
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