Ascientist measures the standard enthalpy change for the following reaction to be -953.2 kj: 4nh3(g) 5 o2(g)4no(g) 6 h2o(g) based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of h2o(g) is kj/mol.
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1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
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Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation
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Ascientist measures the standard enthalpy change for the following reaction to be -953.2 kj: 4nh3(g...
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