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19 Nov 2019

Commonly found in glow sticks, a cyclic peroxide and a polyaromatic hydrocarbon, why type of electrons are excited in the reaction?

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Trinidad Tremblay
Trinidad TremblayLv2
14 Jul 2019

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Related questions

Anthracene, a polyaromatic hydrocarbon (PAH)that is a potential carcinogen, has been spilled onto the soil at acoal tar distillation plant, and there is concern regardingmovement of the contaminant off site. You set up an experiment tomeasure the Kp value for anthracene. Forty milliliters of solutioncontaining 0.01000 mg/L of anthracene is added to reaction vessels containing 1.00g of soil or no soil (blanks). After a 24 hr reaction period, thesamples are filtered to separate solids and solution. Theconcentration of anthracene in the samples is found to be0.00023 mg/L andthe concentration in blanks is 0.00930 mg/L. Using this data report thefollowing parameters to your supervisor: Cw (mg/L); Cs (mg/kg); and Kp (L/kg). What do youconclude regarding the sorption of anthracene to soil and potentialmobility of this compound in the soil studied?

Answer true or false.

(a) When a substance is oxidized, it loses electrons.

(b) When a substance gains electrons, it is reduced.

(c) In a redox reaction, the oxidizing agent becomes reduced.

(d) In a redox reaction. the reducing agent becomes oxidized.

(e) When Zn is converted to Zn2+ ion, zinc is oxidized.

(f) Oxidation can also be defined as the loss of oxygen atoms and/or gain of hydrogen atoms.

(g) Reduction can also be defined as the gain of oxygen atoms and/or loss of hydrogen atoms.

(h) When oxygen, O2, is converted to hydrogen peroxide, H2O2, we say that O2 is reduced.

(i) Hydrogen peroxide, H2O2, is an oxidizing agent.

(j) All combustion reactions are redox reactions.

(k) The products of complete combustion (oxidation) of hydrocarbon fuels are carbon dioxide, water, and heat.

(l) In the combustion of hydrocarbon fuels, oxygen is the oxidizing agent and the hydrocarbon fuel is the reducing agent.

(m) Incomplete combustion of hydrocarbon fuels can produce significant amounts of carbon monoxide.

(n) Most common bleaches are oxidizing agents.

 

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