Zadania z chemii IB HL

Znalezionych zadań: 3

Filtry i umiejętności1

Both ionic and covalent bonding are present in sodium ethanedioate, $\ce{Na2C2O4}$

. (i) Describe both types of chemical bonding present in this compound. Ionic bonding: Covalent bonding: (ii) Deduce a Lewis formula of the ethanedioate ion,

\ce{C2O4^2-}

.…

(i) For the carbonate ion, draw its Lewis formula. (ii) Write the chemical formula of ammonium carbonate. (iii) State why all three C–O bonds in the carbonate ion are identical. (iv) Using section 11 of the data booklet, predict the length of the C–O bonds in…

In which set do all the species contain delocalized electrons? A. $\ce{NH4+}$ , $\ce{C6H12}$ , $\ce{Si(s)}$ B. $\ce{CH3OH}$ , $\ce{SO2}$ , $\ce{C}$ (diamond) C. $\ce{C2H4}$ , $\ce{NO3-}$ , $\ce{SiO2}$ D. $\ce{CO3^2-}$ , $\ce{C6H6}$ , $\ce{Cu(s)}$