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IgorC [24]
3 years ago
10

Does a nebula have mass

Chemistry
2 answers:
allochka39001 [22]3 years ago
7 0

nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. although denser than the space surrounding them, most nebulae are far less dense than any vacuum created on earth – a nebular cloud the size of the earth would have a total mass of only a few kilograms. (wikipedia)

hope this helps! ❤ from peachimin

vivado [14]3 years ago
3 0

Yes, Planetary nebula are small objects, having a radius typically of 1 light-year and containing a mass of gas of about 0.3 solar mass. To find the mass you need estimate the nebula's density, either on the basis of how much light it emits or (more likely) how much it extinguishes light from objects behind it. Then you multiply by the volume, which is easy to estimate assuming that the nebula is even slightly symmetric.

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The phase of matter where particles at extremely high temperatures become ionized.
lesantik [10]
Plasma is the phase of matter where particles at extremely high temperatures became ionized. The phase of matter is the composition of matter which depends on temperature.  Plasma is the hot ionized gas consisting of approximately equal numbers of positively charge ions and negatively charged electrons.
6 0
4 years ago
Read 2 more answers
Which of these pairs indicates an incorrect coupling of reversible reactions?dehydration synthesis and hydrolysisanabolic and ca
Olegator [25]

Answer:

option C= hydrolysis and break down

Explanation:

All other three pairs are correct coupling of each others.

Option A= dehydration synthesis and hydrolysis

Dehydration synthesis:

In dehydration synthesis monomers combine through the covalent bonds and form large molecules. The large molecules are called polymers. The water as a byproduct also released when monomers joints together.

Hydrolysis:

In hydrolysis the polymers are break down into monomers by using water molecules. The catalysts are also required in this process.

Option B= Catabolic and Anabolic

Anabolic:

In this process smaller molecules combine to gather to form large complex molecules by using energy.

For example simple glucose molecules join together to form large disaccharides.

Catabolic:

It is the break down of large complex molecules to the smaller molecules.

For example during cellular respiration sugar molecules break down and generate energy.

Option D=  Break down and synthesis

The break down and synthesis are also reverse pair of each others. The  synthesis involve the formation of molecules form smaller component while the break down involve destruction of molecules into smaller units.

8 0
3 years ago
What is potential energy?
Vlad [161]

Answer:

B

Explanation:

it is the energy stored in the chemical bonds of a substance

4 0
2 years ago
Read 2 more answers
Calculate the number of moles of each compound, given the number of molecules.
anastassius [24]

Answer:

1.  2.46\times 10^{21} molecules of CO₂

2. 10⁴ molecules of H₂O

3. 8.75×10³² molecules of C₆H₁₂O₆

Explanation:

1.  2.46\times 10^{21} molecules of CO₂

2. 10⁴ molecules of H₂O

3. 8.75×10³² molecules of C₆H₁₂O₆

5 0
3 years ago
Due to the small and highly electronegative nature of fluorine, the oxyacids of the this element are much less common and less s
steposvetlana [31]
We are told we have an oxyacid of the formula HOFO. We will assume the atoms are in this order and will draw a proper lewis structure for this compound by first drawing bonds between each of the 4 atoms and then place the remaining electron pairs on each atom:
      ..    ..    ..
H - O - F - O:
      ··   ··    ··
We can calculate the formal charge of an atom using the following formula:

Formal charge = [# of valence electrons] - [# of non-bonded electrons + # of bonds]

H: Formal charge = [1]-[0+1] = 0

O: Formal charge = [6]-[4+2] = 0

F: Formal charge = [7]-[4+2] = +1

O: Formal charge = [6]-[6+1] = -1

As we can see the overall charge of the molecule is neutral since the fluorine as a +1 charge and the oxygen a -1 charge.
4 0
3 years ago
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