Ch 5 Review Quiz
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how many atoms are in a mole?
6.02x10^23
combination reaction
A + B --> C
oxidation means a _____ of electrons and reduction means a ____ of electrons
loss, gain
the oxidation number for nitrogen in the compound Mg(NO3)2
+5
the oxidation number for an uncombined element
0
2 Fe2+ + Cl2 → 2 Fe3+ + 2 Cl1- which of the following statements is true?
Fe2+ is oxidized
2Na + Cl2 --> 2NaCl what type of reaction is this?
combination
an exothermic reaction _____ energy
releases