3 years ago

Is burning of coal a reversible change??? If yes how?

2 answers:

7 0

No, for coal burning to be a reversible change, you would need the ability to take CO2 and turn it back into solid carbon.

koban [17]3 years ago

5 0

I don't think so. No way that I know anyway. It it could be done then the need for more coal to be mined would have stopped hundreds of years ago. Once coal is burned, it forms water and carbon dioxide (essentially) with some sulfur oxides.

How do you put that back together again. It's a little like humpty dumpty.

You might be interested in

What are limitations of a conclusion? I am doing a science lab write-up and under the conclusion it asks for limitations of the

enyata [817]

I believe it means the imitations on what you did what were you not able to do to the object. I'm not too sure but I believe that's what it means. I hope I was able to help

5 0

3 years ago

Which statement describes the change that occurs during the reaction of tin with lead(II) nitrate? A. Tin atoms give electrons t

timama [110]

Answer is: D. Tin atoms give electrons to lead(II) ions and are oxidized to tin(II) ions.
Chemical reaction: Sn⁰ + Pb²⁺ → Sn²⁺ + Pb.
Tin atom (oxidation number 0) give two electrons to led ions, oxidation number of tin is greater now (oxidation number +2).
Oxidation is loss of electrons.

3 0

3 years ago

What is the total number of neutrons in an atom of 0-18?

AVprozaik [17]

A = mass number, A = protons + neutrons
Z = atomic number, Z = protons
neutrons = A - Z
neutrons = 18 - 8 = 10

3 0

2 years ago

Read 2 more answers

The chemical formula for water is h2o. According to this formula what is the composition of a water molecule

sergejj [24]

Answer:

two hydrogen atoms and one oxygen atom