E) This cannot be determined from the data given. 12)In the molecule below,which
ID: 816378 • Letter: E
Question
E) This cannot be determined from the data given. 12)In the molecule below,which atom has the largest partial negative charge? 13) The central atom in does not violate the octet rule. 14) From the information given below, calculate the heat of combustion of methane. Start by writing the balanced equation. 15) In which set of elements would all members be expected to have very similar chemical properties? 16)Of the Choices below, which gives the order for first ionization energies ? 17) Which of the following correctly represent the third ionization of aluminum?Explanation / Answer
12) B
13) B
14) CH4+ O2-----------> CO2 +2H2O
combustion energy = product - reactants
=[4 (413) + 495 ]-( 2x 799+ 2x2x463)
=-1303kJ/mol
15) E
16) B
17) E
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