1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Misha Larkins [42]
3 years ago
13

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

Chemistry
2 answers:
BARSIC [14]3 years ago
7 0
No, for coal burning<span> to be a </span>reversible change<span>, you would need the ability to take CO2 and turn it back into solid carbon.</span>
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
Of the choices below, which is true for the relationship shown? it is ka for the acid h3p2o72â. it is kb for the acid h3p2o72â.
Semenov [28]
A For PLATO. just did it
3 0
3 years ago
Read 2 more answers
Help me on question 5 pls
Gre4nikov [31]
Ca +2
At -1
In +3
Sr +2
Ra +2
Fr +1
Ba +2
As -3
7 0
3 years ago
Using the balanced equation below, how many moles of water can be produced when 4 grams of Hydrogen react? 2H2(g)+O2(g) —&gt; 2H
gavmur [86]

Answer:

4 × 10 g

Explanation:

Step 1: Write the balanced equation

2 H₂(g) + O₂(g) ⇒ 2 H₂O(I)

Step 2: Calculate the moles corresponding to 4 g of H₂

The molar mass of H₂ is 2.02 g/mol.

4 g × 1 mol/2.02 g = 2 mol

Step 3: Calculate the moles of H₂O produced from 2 moles of H₂

The molar ratio of H₂ to H₂O is 2:2. The moles of H₂O produced are 2/2 × 2 mol = 2 mol.

Step 4: Calculate the mass corresponding to 2 moles of H₂O

The molar mass of H₂O is 18.02 g/mol.

2 mol × 18.02 g/mol = 4 × 10 g

7 0
2 years ago
Photosynthesis and glucose metabolism are able to use energy from the sun or glucose molecules to push hydrogen ions against the
Gala2k [10]

Answer:

Osmosis

Explanation:

The osmosis is a movement from somewhere with a lower concentration of a substance to somewhere with a higher concentration of the same substance. Against the concentration gradient. It occurs through a semi permeable membrane which prevents a non desired substance cross it. Also, it's very important to biological process.

7 0
3 years ago
Type the correct answer in the box. Express your answer to three significant figures. Iron(II) chloride and sodium carbonate rea
Ad libitum [116K]

Answer:

The reaction can produce 287 grams of iron(II) carbonate

Explanation:

To solve this question we must find the moles of iron(II) chloride that react. Using the chemical equation we can find the moles of iron(II) carbonate and its mass -Molar mass FeCO3: 115.854g/mol-

<em>Moles FeCl2:</em>

1.24L * (2.00mol / L) = 2.48 moles FeCl2

As 1 mol FeCl2 produce 1 mol FeCO3, the moles of FeCO3 = 2.48 moles

<em>Mass FeCO3:</em>

2.48mol * (115.854g / mol) =

<h3>The reaction can produce 287 grams of iron(II) carbonate</h3>
5 0
2 years ago
Other questions:
  • A solar panel combines multiple photovoltaic cells. Which type of energy is used to power a solar panel?
    15·2 answers
  • What is the most basic building block of matter?
    15·2 answers
  • The chemical symbol for sodium is
    6·1 answer
  • A major problem associated with the incomplete combustion of soft coal is pollution.
    13·2 answers
  • Recall that the water pipes
    14·1 answer
  • Someone please help will mark as brainliest
    15·1 answer
  • A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this samp
    11·2 answers
  • Scientists used a powerful telescope to discover the caloris crater on mercury
    6·1 answer
  • How to know if a single replacement reaction will occur
    5·1 answer
  • When heat is added to the substances, the atoms being to?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!