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
faltersainse [42]
3 years ago
8

Explain how you think scientists know ( think they know ) about the inner Earth?

Chemistry
1 answer:
Digiron [165]3 years ago
8 0
From all the research, Plus they have telescopes and also explore.
You might be interested in
What does a high boiling point temperature indicate about a substance?
Bad White [126]

Answer:

B. Intermolecular forces are hard to overcome

Explanation:

A high boiling point indicates greater inter molecular forces between the molecules of the substance. Inter molecular forces is the force of attraction between the molecules of the substance, which has to be overcome or broken before the substance boils. Example, when water boils, the water molecule (H₂O) will be broken into hydrogen molecule and oxygen molecule.

Therefore, a high boiling point temperature indicates that intermolecular forces of the substance are hard to overcome.

B. Intermolecular forces are hard to overcome

3 0
3 years ago
a student determined that 8.2 milligrams of oxygen is dissolved in a 1000 gram sample of water at 15 degrees Celsius and 1 atm w
melamori03 [73]

Answer: We do not know. We have not been given the solubility of oxygen in water at a given temperature nor have we been given the Henry's laws constant. We also do not know whether you mean 1 atmosphere of air, or 1 atmosphere of oxygen.

8 0
3 years ago
The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane (C8H18) and calculate the mass (
Mariulka [41]

Answer:

3.09kg

Explanation:

First, let us write a balanced equation for the reaction. This is illustrated below:

2C8H18 + 25O2 —> 16CO2 + 18H2O

Molar Mass of C8H18 = (12x8) + (18x1) = 96 + 18 = 114g/mol

Mass of C8H18 from the balanced equation = 2 x 114 = 228g

Converting 228g of C8H18 to kg, we obtained:

228/1000 = 0.228kg

Molar Mass of CO2 = 12 + (2x16) = 12 + 32 = 44g/mol

Mass of CO2 from the balanced equation = 16 x 44 = 704g

Converting 704g of CO2 to kg, we obtained:

704/1000 = 0.704kg

From the equation,

0.228kg of C8H18 produced 0.704kg of CO2.

Therefore, 1kg of C8H18 will produce = 0.704/0.228 = 3.09kg of CO2

6 0
3 years ago
Please help me with this question!<br> Am I right?
muminat
You are right!! Good job!!!
5 0
3 years ago
The atomic number of magnesium is 12 this is also the number of which of the following
frozen [14]
The atomic number represents the number of protons present in an atom.Therefore,the answer is B.
4 0
3 years ago
Other questions:
  • I really need help with my science homework
    9·2 answers
  • Classify the following dienes and polyenes as isolated, conjugated, cumulated, or some combination of these classifications.
    6·1 answer
  • Item 3
    8·1 answer
  • The picture provided shows the arrangement of electrons in atomic shells around the nucleus of four different elements.
    10·1 answer
  • 1. It has been suggested that pain results from a change in the pH of solutions that surround nerves in the body.
    10·1 answer
  • Choose which of the following are organic. (check all that apply) *
    10·1 answer
  • Matching: Which is the control center of the cell that contains DNA?
    8·1 answer
  • 0.00099989<br> 3 sig figs, scientific notation
    5·1 answer
  • What were the first 5 planets that were observed? Why were those the only ones? Help pls!
    10·1 answer
  • In the equation below
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!