Can humans see infrared energy? Question 2 options:

Yes

No
Which of the following statements are true about how sunlight photons (solar radiation) and infrared photons (heat) move in Earth’s atmosphere? Check all that apply.

Question 3 options:

Most sunlight photons that hit clouds pass easily through to Earth’s surface.

Most sunlight photons that hit clouds are reflected back into space.

Most infrared photons that hit clouds are reflected back to the Earth’s surface.

Most infrared photons easily pass through clouds.

Most sunlight photons that reach Earth’s surface are absorbed and reemitted as infrared photons.

Most sunlight photons that reach Earth’s surface are reflected back into space.

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

it means there are 3 atoms of oxygen