B-In the table below the melting point of several ionic compounds are compared: Ionic Compound
lons present
Melting point oc
Na F
Na* and F
993
Nazo
Nat and 02
1275
2.5
CaF2
3
Ca2+ and F
1423
Сао
2.5
Ca2+ and 02
2614
Draw(2 conclusions from the data in the table with reference to positive and negative charge size.
Use the data to help with your answer.

Note the ph and poh values labeled with letters on the ph scale below. based on log rules and the way ph is calculated, what is the difference in [oh– ] concentration between point a and point b. a) 10^1 b) 10^5 c) 10^6 d) 10^7

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.

What reaction is taking place? 02 + c3h8 = h20 + co2