Gina made 9{,}350 \text{ ml}9,350 ml9, comma, 350, space, m, l of chicken noodle soup. she packed 1.8 \text{ l}1.8 l1, point, 8, space, l of the soup in her kids' lunches. she froze the rest of the soup. how many milliliters of soup did gina have left to freeze? \text{ml}ml

Explanation:

Remember that

To convert L to mL multiply by 1,000

we know that

Gina made 9,350 mL

She packed 1.8 L of the soup in her kids' lunches

She froze the rest of the soup

step 1

Convert L to mL

step 2

To find out how many milliliters of soup did Gina have left to freeze, subtract 1,800 mL from 9,350 mL

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.