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zimovet [89]
3 years ago
12

Which statement best defines a universal law

Chemistry
1 answer:
zvonat [6]3 years ago
5 0
<span>The law of attraction in physics Newton's gravitational pull means to lie close to each other. In the field of physics of each object with mass m1 always have attractive forces with another object (with mass m2). For example, a particle with other particles will always mutual attraction. <span>Examples put forward by Sir Isaac Newton in the field of classical mechanics that anything on the atmosphere will be pulled by the earth, which was then known as the phenomenon of falling objects.

</span><span>Attractive force of gravity is expressed by Isaac Newton via Writing in the journal Philosophiæ Naturalis Principia Mathematica on July 5, 1687 in the form of the following formula:

    </span><span>F = G \ frac {M_1 m_2} {r ^ 2},

</span><span>Where:

    </span><span>F is the force of gravity between the two masses,
    </span><span>G is the gravitational konstante,
    </span><span>m1 is the mass of the first object
    </span><span>m2 is the mass of the object, and
    </span><span>r is the distance between the two masses.

</span>This theory is then developed further that any celestial body will be mutual attraction, and this could explain why the earth should revolve around the sun to offset the attractive force of gravity of the earth-sun. <span>By using the gravitational pull of this phenomenon as well, meteors closer to the Earth in its journey in space will be attracted fall to earth.</span></span>
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A fat is composed, in part, of long chains of carbon and hydrogen. This fat as a molecular
IgorLugansk [536]

Answer:

C_{54}H_{102}O_6

Explanation:

Hello!

In this case, since the molar mass of the empirical formula is:

MM_{empircal}=9*12.01+17*1.01+16.00=141.26g/mol

Thus, the ratio of the molecular to the empirical formula is:

\frac{847g/mol}{141.26g/mol} =6.0

Thus, the molecular formula is six times the empirical formula:

C_{54}H_{102}O_6

Best regards!

8 0
3 years ago
Determine the mass of 5.20 moles of C6H12 (gram-formula mass = 84.2 grams/mole).
SIZIF [17.4K]
5.20 mol C6H12* (84.2 g/mol C6H12)= 4.38*10^(2) g C6H12.

The answer should only have three significant figures, according to the numbers in the problem.

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7 0
3 years ago
Make notes on why did the levels of carbon dioxide in the atmosphere decrease?​
kykrilka [37]

Answer:

Carbon dioxide is a very soluble gas. It dissolves readily in water. As the oceans formed, carbon dioxide dissolved to form soluble carbonate compounds so its amount in the atmosphere decreased. Carbonate compounds were then precipitated as sedimentary rocks, eg limestone.

Uptake by living organisms

Carbon dioxide was also absorbed from the oceans into photosynthetic algae and plants. Many of these organisms, and the simple organisms in the food chains that they supported were turned into fossil fuels, eg crude oil, coal and natural gas, which all contain carbon.

Coal is a fossil fuel which was formed from trees which were in dense forests in low-lying wetland areas. Flooding caused the wood from these forests to be buried in a way that prevented oxidation taking place. Compression and heating over millions of years turned the wood into coal.

Crude oil and natural gas were formed from simple plants and tiny animals which were living in oceans and lakes. These small organisms died and their remains sank to the bottom where they were buried under sediments. The lack of oxygen prevented oxidation from occurring.

Over millions of years, heat and pressure turned the remains of the organisms into crude oil and natural gas. Natural gas contains the smallest molecules and is often found on top of crude oil, trapped under sedimentary rock.

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5 0
4 years ago
Read 2 more answers
Chlorine-36 does what
Lelu [443]

Answer:

Chlorine-36 undergoes β-decay.

Explanation:

Cl-36 is radioactive. It emits an electron ( a β-particle) to become more stable and forms Ar-36.

The nuclear equation is

_{17}^{36}\text{Cl}\longrightarrow_{-1}^{0}\text{e} + _{18}^{36}\text{Ar}

3 0
4 years ago
Nucleic acids are hydrocarbons that also contain which other element?
Maurinko [17]
Nucleic acids are hydrocarbons that also contain nitrogen, phosphorus and oxygen elements. 
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