Assign an oxidation number to each atom in the reactants.
4Al(s)+3O2(g)→2Al2O3(s)
(Oxi...
Chemistry, 20.10.2020 18:01 b2cutie456
Assign an oxidation number to each atom in the reactants.
4Al(s)+3O2(g)→2Al2O3(s)
(Oxidation number for both Al and O is needed)
Answers: 3
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11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
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Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
Answers: 1
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