Which of the following is true about oxidation-reduction reactions? a.During oxidation a compound gains electrons. b.Not...

Which of the following is true about oxidation-reduction reactions?

a.During oxidation a compound gains electrons.

b.Not every oxidation must be accompanied by a reduction.

c. There are 8 commonly accessed oxidation states of carbon.

d. Dehydrogenases typically remove two electrons and two hydrides.

e. They usually proceed through homolytic cleavage.

Expert Solution

In general:

Reduction = species that GAINS electrons

Oxidation = process in which a specie will LOSS electrons

Reducing agent = The species that favors reduction, i.e. it will oxidize in order to reduce another species

Oxidizing agent = The species that favors oxidation, i.e. it will reduce in order to oxidise another species

Then

a.During oxidation a compound gains electrons. false, since oxidation implies loss of electrons

b.Not every oxidation must be accompanied by a reduction. false, typically, if electrons are lost, any other species will gain those electrons, since charge is conserved

c. There are 8 commonly accessed oxidation states of carbon. True, oxidaiton states = +/-4, +/-3, +/-2, +/-1 and 0 ... Those are 8 states, ´plus the "0"

d. Dehydrogenases typically remove two electrons and two hydrides. False, will not remove from 2 hydrides

e. They usually proceed through homolytic cleavage. False, not all oxidations/reduciton reactions will do this

queen_honey_blossom answered 2 years ago

Oxidation states are important for keeping track of electrons in oxidation-reduction reactions. Here are some general...

Oxidation states are important for keeping track of electrons in oxidation-reduction reactions. Here are some general rules to remember: In most cases, oxygen has an oxidation state of −2. Group 1 and group 2 elements on the periodic table have +1 and +2 oxidation states, respectively. In most cases, hydrogen has an oxidation state of +1. Many elements can have more than one oxidation state. In such cases, use the other elements in the compound whose oxidation states are known...

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons...

In addition to mass balance, oxidation-reduction reactions must be balanced such that the number of electrons lost in the oxidation equals the number of electrons gained in the reduction. This balancing can be done by two methods: the half-reaction method or the oxidation number method. The half-reaction method balances the electrons lost in the oxidation half-reaction with the electrons gained in the reduction half-reaction. In either method H2O(l), OH?(aq), and H+(aq) may be added to complete the mass balance. Which...

1. Balance the following oxidation-reduction reactions using the half-reaction method and tell the number of electrons...

1. Balance the following oxidation-reduction reactions using the half-reaction method and tell the number of electrons transferred in the balanced oxidation-reduction reaction a) S2-(aq) + NO3-(aq) ---> S8(s) + NO2(g) acidic solution b) MnO4-(aq) + I-(aq) ---> MnO2(s) + IO3-(aq) basic solution c) Sb(s) + H2SO4(aq) ---> Sb2(SO4)3(s) + SO2(g) acidic solution d) H2O2(aq) + MnO4-(aq) ---> MnO2(s) + O2(g) basic solution

For each of the following oxidation – reduction reactions, identify which element is being oxidized and...

For each of the following oxidation – reduction reactions, identify which element is being oxidized and which is being reduced? a. Ca (s) + 2H2O (l)  Ca(OH)2 (s, aq) + H2 (g) b. H2 (g) + F2 (g)  2HF (g) c. 4Fe (s) + 3O2 (g)  2Fe2O3 (s) d. 2Fe (s) + 3Cl2 (g)  2FeCl3 (s)

Tell which of the following are oxidation-reduction reactions. For those that are, identify the oxidizing agent,...

Tell which of the following are oxidation-reduction reactions. For those that are, identify the oxidizing agent, the reducing agent, the substance being oxidized, and the substance being reduced. (For nonredox reactions type NONE in the answer boxes. Omit states-of-matter from your answer.) (a) Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g) Is this an oxidation-reduction reaction? oxidizing agent: ? reducing agent: ? substance oxidized: ? substance reduced: ? (b) CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g) Is this...

Redox (oxidation-reduction) reactions in glycolysis

Part A - Redox (oxidation-reduction) reactions in glycolysis In glycolysis, as in all the stages of cellular respiration, the transfer of electrons from electron donors to electron acceptors plays a critical role in the overall conversion of the energy in foods to energy in ATP. These reactions involving electron transfers are known as oxidation-reduction, or redox, reactions. Drag the words on the left to the appropriate blanks on the right to complete the sentences. 1. When a compound donates (loses)...

What is Oxidation-reduction reactions? What is FDA ?

What is Oxidation-reduction reactions What is FDA What is GRAS What is patent What is USDA

Why must the charge balance in oxidation-reduction reactions?

Which of the following reactions is properly classified as a precipitation, reduction/oxidation, and/or Bronsted-Lowry acid/base reaction?...

Which of the following reactions is properly classified as a precipitation, reduction/oxidation, and/or Bronsted-Lowry acid/base reaction? (1) CH3COOH(aq) + OH− (aq) → H2O(l) + CH3COO− (aq) is both precipitation and acid/base (2) CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g) is both redox and acid/base (3) 2 H3O + (aq) + CaCO3(s) → Ca2+(aq) + CO2(g) + 3 H2O(l) is both redox and acid/base (4) 2 Na(s) + Cl2(g) → 2 NaCl(s) is both precipitation and redox (5) None...

For the following oxidation-reduction reactions, circle the reactant that is oxidized. (a) O2 (g) + 2Cu...

For the following oxidation-reduction reactions, circle the reactant that is oxidized. (a) O2 (g) + 2Cu (s) → 2CuO (s) (b) 2K (s) + 2H2O (l) → 2KOH (aq) + H2 (g) (c) 2HCl (g) + Mg (s) → MgCl2 (aq) + H2 (g) (d) 2P (s) + 5Cl2 (aq) → 2PCl5 (s) (e) 2Li (s) + Cu2+ (aq) → 2Li+ (aq) + Cu (s)

Question