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Papessa [141]
3 years ago
8

What best explains why the sun maintains its size and shape?

Chemistry
2 answers:
ivolga24 [154]3 years ago
8 0

Answer:

The sun maintains its spherical shape is due to the radially symmetrical nature  of the gravitational force.

On the other hand, the sun maintains its size and shape due to the external pressure of fusion energy due to the force of gravity.  There is a stable balance between the gas pressure that is directed outward and the force of gravity that is directed inward.

Marina86 [1]3 years ago
3 0
Pressure caused by high temperatures are balanced by gravity
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What is the energy change that will occur when 25.5 grams of oxygen gas (O2) react with excess methane (CH4) according to the re
AysviL [449]
Amount of CH4 is excess, so no need to worry about it 
<span>but the limiting factor is the Oxygen </span>

<span>according to stranded equation, </span>

<span>CH4 + 2 O2 --> CO2 + 2 H2O ΔH = -889 kJ/mol </span>


<span>just by taking proportions </span>

<span>(-889 kJ/mol) / 2 x 0.8 mol = - 355.6 kJ </span>

<span>so i think the answer is (a)</span>
7 0
3 years ago
For NH4+, write an equation that shows how the cation acts as an acid
vazorg [7]

According to  Bronsted-Lowry theory acid are donor of protons and bases are acceptors of protons (the hydrogen cation or H⁺).

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6 0
4 years ago
Read 2 more answers
4. Consider the following reaction:
Lyrx [107]

Answer:

High temperatures

Explanation:

NaHCO₃ (8) + HCH,O₂ (aq) → H₂O (l) + CO₂ (g) + NaC,H₃O₂ (aq)

As the flask gets cooler to the touch as the reaction proceeds, the reaction is endothermic. This means that ΔH is positive (ΔH>0).

As a gas is formed (bubbles are formed), ΔS is positive (ΔS>0).

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The greater the temperature, the easier it would be for TΔS to be greater than ΔH.

4 0
3 years ago
The ____________ is inversely proportional to the wavelength and reported in reciprocal centimeters (cm−1). A technique used for
san4es73 [151]

Answer:Please see below in the explanation column for answers

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3 0
3 years ago
Is it correct ?!???!);$);
ValentinkaMS [17]

Answer:

None of the above

Explanation:

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8 0
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