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Mathematics
Edexcel2017
*P48058A0328*
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(ii) Which describes the polarity of the P—Cl bond and the polarity of the
phosphorus(III) chloride molecule?
(1)
Polarity of P—Cl bond Polarity of molecule
A non-polar non-polar
B non-polar polar
C polar non-polar
D polar polar
(c) Phosphorus has one naturally occurring isotope with mass number 31.
Chlorine exists as two isotopes with mass numbers 35 and 37.
Give the formulae and mass/charge ratio of the ions responsible for the
molecular ion peaks in the mass spectrum of phosphorus(III) chloride, PCl .
Question
Mathematics
Edexcel2017
Magnesium nitrate decomposes on heating as shown by the equation.
2Mg(NO ) (cid:114) 2MgO + 4NO + O
Question
Mathematics
Edexcel2017
MnO–(aq) + 8H+(aq) + 5e– (cid:85) Mn2+(aq) + 4H O(l) +1.51
Question