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Gnoma [55]
3 years ago
14

How big is the solar system compared to universe

Chemistry
1 answer:
murzikaleks [220]3 years ago
8 0

Answer:

You are one of the billions of people on our Earth. Our Earth orbits the Sun in our Solar System. Our Sun is one star among the billions in the Milky Way Galaxy. Our Milky Way Galaxy is one among the billions of galaxies in our Universe.

Explanation:

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Fiesta28 [93]
Rain form from clouds, while mist forms at Earth’s surface
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3 years ago
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What is the "magic number' of valence electrons? How does this influence the type of bonds formed by various combinations of
svp [43]

Magic number is any number in electron shells that suggest stability. It corresponds to total number of electrons in filled electron shells.

If an electron is having magic number, then it forms stable bonds.

Explanation:

The magic numbers are 2,10,18,36,54, 86 and 126. This refers to the total number of electrons that an electron can have when it is completely filled.

Atomic nuclei which carries either of these nucleons have high binding energy as compared to others. Hence, they have high stability. Bonds in such elements are more strong.

Radioactive decay of such elements is very slow.

Eugene Winger coined the term "magic number".

6 0
3 years ago
Which statement describes an intensive property of matter?
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Among the choices above, I think the statement that best describes an intensive property of matter is letter B which is " It depends on how a substance was formed." <span>Intensive properties are those property which does not depend upon the amount of substance present in the system. Such as refractive-index, density etc </span>
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3 years ago
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A chemist prepares a solution of iron chloride by measuring out 0.10 g of FeCl2 into a 50. mL volumetric flask and filling to th
Tanya [424]

<u>Answer:</u> The molarity of anions (Cl^-) in the solution is 0.0316 M

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

We are given:

Given mass of iron (II) chloride = 0.10 g

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Volume of solution = 50 mL

Putting values in above equation, we get:

\text{Molarity of iron (II) chloride}=\frac{0.10\times 1000}{126.75\times 50}\\\\\text{Molarity of iron (II) chloride}=0.0158M

1 mole of iron (II) chloride produces 1 mole of Fe^{2+} ions and 2 moles of Cl^- ions

So, concentration of chloride ions (anions) in the solution = (2\times 0.0158)=0.0316M

Hence, the molarity of anions (Cl^-) in the solution is 0.0316 M

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4 years ago
What do the repetitive patterns in a mineral form
siniylev [52]

Answer:

The repeating pattern of a mineral's particles form a solid called a <u>crystal</u>.

Explanation:

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3 years ago
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