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Ugo [173]
3 years ago
15

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was most

ly gas and dust. Which statement best explains how planets formed in the early solar system?
A.Planets formed from magnetism in space that interacted with light from the stars.
B.Planets formed from large asteroids that had broken apart.
C.Planets formed from molten metal in volcanic eruptions.
D.Planets formed from small amounts of debris that were attracted together because of gravity.
Chemistry
1 answer:
andriy [413]3 years ago
5 0

Answer:

Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. ... When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material. At the center, gravity pulled more and more material in.

Explanation:

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was mostly gas and dust.

in conclution its d

Planets formed from small amounts of debris that were attracted together because of gravity.

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Draw the electron configuration for a neutral atom of nitrogen.
velikii [3]

Answer:

1s22s22p3.

Explanation:

Electronic configuration of a neutral atom is 1s22s22p3.  

Please see the image attached

 

Neutral atom of nitrogen will have equal number of proton and electron i.e equal to 7. 7 electron of the nitrogen are placed into the s and p orbitals in the ground state.  

6 0
3 years ago
Consider the combustion reaction for octane (C8H18), which is a primary component of gasoline.
DIA [1.3K]

Answer:

1.16 moles CO₂

Explanation:

To find the moles of CO₂, you need to (1) convert grams C₈H₁₈ to moles (via the molar mass) and then (2) convert moles C₈H₁₈ to moles CO₂ (via the mole-to-mole ratio from equation coefficients). It is important that the conversions/ratios are arranged in a way that allows for the cancellation of units. The final answer should have 3 significant figures like the given value.

Molar Mass (C₈H₁₈): 8(12.011 g/mol) + 18(1.008 g/mol)

Molar Mass (C₈H₁₈): 114.232 g/mol

2 C₈H₁₈ + 25 O₂ -----> 16 CO₂ + 18 H₂O
^                                    ^

16.6 g C₈H₁₈            1 mole            16 moles CO₂          
--------------------  x  -----------------  x  -------------------------  = 1.16 moles CO₂  
                              114.232 g          2 moles C₈H₁₈          

3 0
2 years ago
When 2.56 g of a compound containing only carbon, hydrogen, and oxygen is burned completely, 4.89 g of CO2 and 3.00 g of h2o are
victus00 [196]

Answer:

The empirical formula is CH3O2

Explanation:

From The question, number of moles of CO2= 4.89/44=0.111mol

Number of moles of H2O=3/18= 0.1667moles

Since 1mole of CO2 contains 1mole of carbon and 2 moles of O2,

Implies that there 0.111 moles of C and 0.222moles of O2

Similarly also 0.1667moles of water contains 2 moles of H2 hence = 0.333 moles of H2

Dividing by smallest number= 0.111mol

For C = 0.111/0.111= 1

For H = 0.333/ 0.111= 3

For O = 0.222/0.111= 2

Hence the empirical formula= CH3O2

3 0
3 years ago
Read 2 more answers
What’s the answer to this
Tomtit [17]

Answer:

explarations

Explanation:

8 0
3 years ago
Which describes what happens when a wave transfers energy? A. Waves carry energy toward the energy source through space or throu
Mandarinka [93]

A. Waves carry energy toward the energy source through space or through matter, and the matter moves with the energy
7 0
3 years ago
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