Into how many peaks would you expect the 1H NMR signals of the indicated protons to be split? (Assume all coupling constants are equal.) ball & stick -+labelsHighlight H20Highlight H18Highlight H19Highlight H15 H20: ___ H18: ___ H19: ___ H15: ___

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.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

When balancing a chemical equation: