Answer Happy

QUESTION 13 Which ion has the smallest radius? Cs A13+ Ba2+ Окт O sr2+ QUESTION 14 Gallium, a metal, has a freezing point near room temperature so it can be melted by holding it in your hands. If gallium's melting point is 302.8 K, what is that temperature in °C? O 39.8°C 575.8°C 302.8°C 29.8°C O 0.0°C

QUESTION 15 The hybridization associated with the central atom of a molecule in which all the bond angles are 109.5° is sp3c2 sp2 O sp O sp3d 503

Which Lewis dot notation for atoms and ions is correct for the reaction for the formation of aluminum oxide? 2 AI: + 3.0: + 2A13+, 2A1" 3:0:- Ai + 0: Al2":0) :- 3 Al. + 2.0: : 3A19, 21:0:- Äl: + 3.0: → 3 A1?, 3[:0:)? 2 Al. + 3.0: 个 3.0: 241**, 3(: 0:1 -

QUESTION 17 What is the coefficient for HBr when the following equation is balanced with the smallest whole number coefficients? Br2 + H2O → HBr + HBrO3 8 5 3 6 07 QUESTION 18 What is the correct formula for the carbonate ion? O (C002 O CO2- O CH3COO CI CO32-