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serg [7]
3 years ago
15

How many electrons are able to fit on the first energy level.​

Chemistry
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

2 electrons

Explanation:

only two electrons are able to fit in the first energy level

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What is the highest point of the wave a transverse wave called
topjm [15]
<span>The answer to the question "what is the highest point of the transverse wave called" is a crest or peak. A transverse wave is a wave in which the medium of the wave vibrates at 90 degrees to the direction in which the wave is moving at. The lowest points are called the troughs. Examples of transverse waves are light and electromagnetic radiation.</span>
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2 years ago
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How many atoms are in 0.650 mole of zinc?<br> NEED TO KNOW ASAP PLEASE
ryzh [129]
There are
4.517
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23
atoms of Zn in 0.750 mols of Zn.
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2 years ago
99.9% of the matter that makes up living organisms consist of how many elements
gulaghasi [49]

Answer:

6 elements.

Explanation:

99.9% by weight of most living things is made of the six elements: hydrogen, carbon, nitrogen, oxygen, phosphorus, and sulfur (backwards using just the letter abbreviations this spells SPONCH).

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3 years ago
The number of particles in one mole of a chemical substances is 602,200,000,000,000,000,000,000 particles. What is the correct w
crimeas [40]

The correct way to write this number in scientific notation : 6.022 x 10²³

<h3>Further explanation </h3>

Scientific Notation is a standard form of writing numbers used in mathematical operations

The rules:

1. Writing order : first digit, decimal point, next digit

2. Then followed by powers of 10 (the value can be +/-)

If the value is> 10 (the power of 10 is +), the decimal point is moved to the left, to the right of the first digit

If the value is <10 ((the power of 10 is -), the decimal point is moved to the right, to the right of the first digit

I certainly didn't count the details of the number of zeros listed, but only saw the answer choices.

And the right ones are: 6.022 x 10²³

3 0
3 years ago
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The number of molecules in 48.0 grams of oxygen gas (O2) is...
Dmitrij [34]

Answer:

9.033 × 10²³ molecules

Explanation:

Given data:

Mass of oxygen = 48.0 g

Number of molecules = ?

Solution:

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 48.0 g/ 32 g/mol

Number of moles = 1.5 mol

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

1.5 mol  × 6.022 × 10²³ molecules  / 1mol

9.033 × 10²³ molecules

4 0
2 years ago
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