CHEMISTRY HIGH SCHOOL

When burned, coal releases _____. oxygen carbon dioxide methane sulfur nitrogen oxide?

Answers

Answer 1
Answer: Coal releases carbon dioxide when burned. The reaction looks like this:
C(s)+O₂(g)→CO₂(g) 

I hope this helps.  Let me know in the comments if anything is unclear.

Related Questions

2. 7.5 g of potassium react with water to produce potassium hydroxide and hydrogen gas. Calculate the mass of potassium hydroxide produced. (8 points)
In the double replacement reaction between Na2SO4 (aq) and BaCl2 (aq), will a precipitate form?No. This reaction produces no insoluble products. Yes. The NaCl will precipitate. Yes. The BaSO4 will precipitate. Yes. Both the NaCl and the BaSO4 will precipitate.
Which statement describes a chemical property that can be used to distinguish between compound A and compound B?(1) A is a blue solid, and B is a white solid.(2) A has a high melting point, and B has a low melting point.(3) A dissolves in water, and B does not dissolve in water.(4) A does not burn in air, and B does burn in air.
Cuantas moléculas de oxigeno se producen por la descomposición de 28.5 g de H2O2 (masa molecular = 34.0g/mol) de acuerdo a la ecuación 2H2O2(l) → 2H2O(l)+O2(g)
Please help !!!Which of the following alcohols is now commonly being used as fuel additive? methyl alcohol ethyl alcohol isopropyl alcohol none of the above

If two oxygen atoms combine to make a molecule, what type of bond will they form

Answers

They will form a diatomic molecule, bonded by covalent bond. 2 atoms of oxygen because it 1 atom cannot be stable as 2 together....
.... I hope it helps

Final answer:

Two oxygen atoms form a stable molecule by sharing two pairs of electrons, forming a double covalent bond. This is an important process for achieving the required octet electron configuration for both oxygen atoms.

Explanation:

When two oxygen atoms combine to form a molecule, the type of bond they form is a double covalent bond. An atom of oxygen has six electrons in its valence shell and it requires two more to achieve stability, hence, the oxygen atom achieves this equilibrium by sharing two pairs of electrons forming a double covalent bond. This is similar to the example of hydrogens and an oxygen atom sharing electrons to form a water molecule, where covalent bonds are also present.

The creation of a double bond occurs as these atoms share more than one pair of electrons to attain the required octet configuration. This could also be seen in bonds formed between carbon and oxygen atoms in formaldehyde (CH₂O), or between carbon atoms in ethene (C₂H4).

The covalent bond formed between these two oxygen atoms is, therefore, a key component for them to form a stable molecule.

Learn more about Double Covalent Bond here:

brainly.com/question/19382448

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According to Bohr's model of the hydrogen atom, what determines the energy of an electron?A. the radius of its orbit
B. the direction of its orbit
C. the stability of its orbit

Answers

Option a: the radius of its orbit.

Which solution would most likely cause a plant placed in it to become firmer and more rigid? A. hypertonic B. hypotonic C. isotonic D. osmotic

Answers

"Hypotonic" is the one solution among the choices given in the question that would most likely cause a plant placed in it to become firmer and more rigid. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has come to your great help.

Is glucose an pure substance or mixture?

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a pure substance hope this helped
yes glucose is a pure substance

What is the molarity of a solution that contains 0.50 mole of Naoh in 0.5p liter of solution

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The concentration pertains to the molarity of the solution with an equation of mol of solution per liter of solvent.  

M (molarity) = moles of solute/L of solvent

M (molarity) = 0.5 mol NaOH / 0.5 L

M (molarity) = 1 M NaOH

A chemist mixes two liquids together. The reaction produces a gas and a solid. According to the law of conservation of mass, what should the chemist observe when she compares the total masses of the substances before and after the reaction? A.The masses are equal. B.The masses are inconsistent. C.The mass of the substances before the reaction is greater than the mass of the substances after the reaction. D.The mass of the substances before the reaction is less than the mass of the substances after the reaction.

Answers

 A is the answer. Because the masses are equal.
The answer is (A.) The masses are equal. (The law of conservation of mass says that mass cannot be created (added) or destroyed. So the total mass must be the same before and after. Hopefully, this helps)
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The decomposition of ammonia gas (a process that occurs at high temps) is 2KH3(g) --> N2(g) 3H2(g). If a balloon was filled with 3.5L of ammonia gas and all of the gas decomposed, what would be the total volume of gas in the container? Assume the pressure and temp remains constant.