Which species is the oxidizing agent in the following equation? Hint: the oxidizing agent accepts the electrons in an electron transfer reaction.
K + O2 ---> KO2

a. K

b. O2

c. KO2

d. This is not an oxidation-reduction reaction

acts as oxidizing agent.

Explanation:

Oxidation reaction : When there is an increase in oxidation state number.

Reduction reaction : when there is a decrease in oxidation state number.

Potassium metal has undergone oxidation, as its oxidation state is changing from 0 to +1. Potassium metal is getting converted into potassium ions.

Oxygen has undergone reduction, as its oxidation state is changing from 0 to -1.

The chemical agent which itself get oxidized and reduce others is called reducing agent and the chemical agent which itself get reduced and oxidizes others is called oxidising agent. Thus acts as oxidizing agent.

3 hours because it is a decent distance.

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g