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d1i1m1o1n [39]
3 years ago
15

Heat from our closet star the travels by radiation

Chemistry
1 answer:
Aloiza [94]3 years ago
5 0

<u><em>The answer is definitely the sun</em></u> because a sun is a star. Other stars are to far, so thats why its soo tinny. Some stars are brighter than the sun... But your answer is definitely <u><em>SUN</em></u>...

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What does the aufbau principle suggest about electron configuration?
Scorpion4ik [409]

Answer:

Electrons occupy orbitals with the lowest energy first.

Explanation:

The Aufbau Principle states that electrons will fill the atomic orbitals with the lowest energy levels first, before occupying others with higher energy levels.

For example, electrons will fill the 1s orbital before filling the 2s orbital.

4 0
4 years ago
Read 2 more answers
Using Newton’s laws of motion, describe the motion of a roller coaster and analyze the forces acting on the roller coaster at di
Illusion [34]

We can apply Newton's third law of motion in roller coaster.

Explanation:

  • If we are planning to make a roller coaster with elevations and turn then we need to apply newton’s law of motions, kinetic energy and potential energy.
  • Newton’s third law of motion says that “ for every action, there is an equal and opposite reaction”. Newton’s third law of motion applies between the tract and ride vehicles.
  • If we neglect the air resistance and friction, Roller coaster car will always experience two types of forces which are gravitational force and normal force. The normal force is acting perpendicular to the track and gravitational for is also acting downwards.
  • Whenever the tracts get moving the gravitational force is attracting roller coaster to downward. So this will get accelerates. In the majority of the roller coasters, the hill will decrease with height as the train moves along the tract.

3 0
3 years ago
a scientist uses 68 grams of CaCo3 to prepare 1.5 liters of solution. what is the molarity of this solution?
victus00 [196]

Answer: 0.4533mol/L

Explanation:

Molar Mass of CaCO3 = 40+12+(16x3) = 40+12+48 = 100g/mol

68g of CaCO3 dissolves in 1.5L of solution.

Xg of CaCO3 will dissolve in 1L i.e

Xg of CaCO3 = 68/1.5 = 45.33g/L

Molarity = Mass conc.(g/L) / molar Mass

Molarity = 45.33/100 = 0.4533mol/L

7 0
4 years ago
What state of matter is best represented by the diagram below?
nalin [4]

Answer:

Gas

Explanation:

4 0
4 years ago
The strongest and most stable chemical bonds are a) covalent bonds
Paha777 [63]

Two of the strongest forms of chemical bond are the ionic and the covalent bonds. Chemical bonds form between two atoms, each with its own electron environment

5 0
4 years ago
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