Chemistry, 01.03.2021 01:00 morelos7078

“Sound plays an important role in our lives”. Give two points in support of this statement.

Answers: 1

Show answers

Answers

Sound can be used to alert us in emergencies. 2. Sound can also be used to help blind people navigate the world better. I’m sorry if these horrible but I tried lol

Answer from: kayla2945

First job out of college was in an industrial manufacturing setting. Was told by plant engineer to walk around, get used to normal sounds. He stressed anything "abnormal" is a noise more so than a sound. Report abnormalilies to supervisor immediately!! So essentially sounds are giving us warnings something is abnormal.Sounds also provide feedback. Say you are performing an experiment, requires boiling water to sanitize. Start the burner under a vessel, go on about other preparations. Sound of water boiling will trigger setting a timer for how long to let it boil.Get off work, pleasant music, nature sounds can help us decompress from a stressful day on the job.

Hope some of these give you impetus to think of other bullet points, sounds good to me. !!

Explanation:

Answer from: Quest

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( $n_2$ ) .

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.

Answer from: Quest

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

Another question on Chemistry

Chemistry, 21.06.2019 17:30

**40** points asapessay questions (10 points possible) clear image of next, create your own scenario. it can be one of your own real experiences or one you make up. use imagery in your writing to give your instructor a the setting and an action taking pace in your writing explain the structure and functions of the skin at work in your scenario. !

Answers: 3

Answer

Chemistry, 21.06.2019 19:00

If a || b and e || f, what is the value of y ?

Answers: 3

Answer

Chemistry, 22.06.2019 05:30

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Answers: 3

Answer

Chemistry, 22.06.2019 10:50

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons