FINALEXAM: PORTAGE LEARNING CHEM 104 WITH VERIFIED QUESTIONSAND ANSWERS

FINAL EXAM: PORTAGE
LEARNING CHEM 104 WITH
VERIFIED QUESTIONS AND
ANSWERS


Rules for determining oxidation number ------------CORRECT ANSWERS--------1. H has
oxidation number of +1 paired with nonmetals and -1 with metals

2. Oxygen has a number of -2

3. Metals have a charge equal to their group number

4. Halogens are usually -1

5. The sum of oxidation numbers for all atoms in a molecule is the ions charge



Oxidation number for HBr ------------CORRECT ANSWERS--------H: +1

Br: -1



Oxidation numbers for HNO3 ------------CORRECT ANSWERS--------H: +1

N: +5

O: -2



Redox Reaction Definition ------------CORRECT ANSWERS--------Type of reaction involving the
transfer of electrons between two species



Define oxidation ------------CORRECT ANSWERS--------loss of electrons



Define reduction ------------CORRECT ANSWERS--------gain of electrons



Ag + Au^+1 = Ag^+1 +Au ------------CORRECT ANSWERS--------Ag: oxidized (lost electron)

, Au: reduced (gained electron)