1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
finlep [7]
3 years ago
14

The Earth's moon is unusually large. Two popular theories of the moon's origin include the "sister world" hypothesis, which stat

es that the moon formed from the same materials as the Earth, near enough to the Earth that they fell into orbit around each other. A second theory is the "capture" hypothesis, in which the moon formed elsewhere in the Solar system, and the Earth's gravity pulled it into its orbit. Studies of what the moon is made of indicate that some of its materials had to come from the Earth or from the same area of the Solar system where the Earth had formed. At the same time, the moon does not contain much of the material that makes up the Earth's core, so the moon could not have formed from the same materials as the Earth. How do the two facts above affect the described theories of the moon's origin? A. They show that scientists will never agree on where the moon came from. B. They show that more experiments on moon formation need to be done. C. They show that no theory accounts for the existence of the moon. D. They show that neither theory is complete and entirely correct.
Chemistry
2 answers:
Verizon [17]3 years ago
8 0

Answer: D. They show that neither theory is complete and entirely correct.

Explanation:

Theory is the set of rules and principles that describe and explain a particular phenomenon (the existence of the moon in this case) and is subject to changes as new evidence emerges that gives meaning to it.

In this sense, there are many theories about the Earth's moon formation and two of the "accepted" theories are described before the question. In addition, both theories explain in a certain way the reason why the Moon is predominantly composed of elements similar to those found on Earth.

However, both theories seem to be incomplete when trying to explain our Moon's origin.

Alex787 [66]3 years ago
4 0

Answer:

d

Explanation:

You might be interested in
If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? A. one-fourth B.
Basile [38]
m=m_{0}*(\frac{1}{2})^{\frac{60}{30}}\\\\
m=m_{0}*(\frac{1}{2})^{2}\\\\
m=\frac{1}{4}m_{0}

If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? <span>A. one-fourth</span>
7 0
3 years ago
Read 2 more answers
Suppose you will fill a glass with ice cubes. When the ice cubes melt, is the glass still full
goblinko [34]
No. It will not still be full. The reason being is because when it melts, it's almost the same thing as compacting things down into another object (container). Therefore, you will have some room left i the glass. Like, if your trashcan was over-flowing, and you push it down to compact it so you can add more trash. So when the ice melts, it will not be full.
7 0
3 years ago
discuss how variations in electronegativity result in the unequal sharing of electrons in polar molecules.
konstantin123 [22]

Variations in electronegativity prompt in the unequal halves of electrons in polar molecules because when one atom is more electronegative than the other, it becomes more polar than the other.

It results in the more electronegative atom to have a slightly negative (-ve) charges, and the other atom to have partial or slightly positive(+ve) charges.

Polar molecules have unequal sharing of electrons because the atoms have unequal attraction for electrons so the sharing is unequal.

The larger the difference in electronegativity between the two atoms, the more the polar the bond.

Hydrogen bonds are involved in unequal sharing of electrons between two atoms.

To know more about variations in electronegativity in polar molecules here :

brainly.com/question/18260584?referrer=searchResults

#SPJ4

6 0
1 year ago
Fill in the blanks to correctly describe each separation process.
Dimas [21]

Answer:

C, B ,A(in the order of the blanks)

Explanation:

A centrifuge uses centrifugal force to seperate 2 substances with different densities, the lighter one at the top. This cannot be done with homogeneous mixtures

4 0
3 years ago
A reaction is non-spontaneous at any temperature when
slavikrds [6]

Answer:

A reaction is non-spontaneous at any temperature when the Gibbs free energy > 0.

Explanation:

There is a state function, that determines if a reaction is sponaneous or non spontaneous:

ΔG = Gibbs free energy

A reaction is non spontaneous when it does require energy to produce that reaction. It will be spontaneous, when the reaction does not require energy to be occured.

The formula is: ΔG = ΔH - T.ΔS

ΔH → Enthalpy → Energy gained or realeased as heat.

ΔH < 0 → <em>Exothermic reaction. Spontaneity is favored </em>

T  → Temperature

ΔS → Entropy →  Degree of disorder of a system.

When the system has a considered disorder ΔS > 0, disorder increases.

When the system is more ordered, ΔS < 0, disorder decreases.

The reaction will be non spontaneous if, the enthalpy is positive (endothermic reaction) and the ΔS < 0 (disorder decreases). It will not occur if we do not give energy.

ΔG < 0 → Spontaneous reaction

ΔG > 0 → Non spontaneous reaction

ΔG = 0 → System in equilibrium

8 0
3 years ago
Other questions:
  • An unknown quantity of sugar was completely dissolved in water at 75 degrees Celsius to form a clear and colorless solution. The
    13·1 answer
  • The neutrons are also a heavy particle located in the nucleus. these particles contain what particles?
    7·1 answer
  • Gay-Lussac's law states:
    11·1 answer
  • Classify the following reaction: 2H2O 2H2 + O2
    6·2 answers
  • Which expression is equivalent to (q Superscript 6 Baseline) squared?
    13·2 answers
  • Rewrite each equation below with the delta H value included with either the reactants or the products and identify the reaction
    5·1 answer
  • Need help asap!!!
    11·1 answer
  • General size of a nebula
    11·2 answers
  • In the manufacturing of computer chips, cylinders of silicon are cut into thin wafers that have a mass of
    12·1 answer
  • An aqueous solution of copper(II) sulfate is electrolysed using inert electrodes.Predict the products of this electrolysis at
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!