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il63 [147K]
3 years ago
12

Who was the first chemist to organize elements by atomic number?

Chemistry
2 answers:
NemiM [27]3 years ago
7 0

Answer:

chemist Dimitri Mendeleev

  • XxAnimexX
Finger [1]3 years ago
6 0

Answer:

Chemist Dimitri Mendeleev

Explanation:

He started the development of the periodic table, arranging chemical elements by atomic mass.

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2NaCl ---&gt; 2Na + Cl2<br>What are the atoms of the products ​
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Answer: ...

Explanation:

Sodium, chlorine

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3 years ago
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What is one example of a scientific model? (this is science I don't know why can't find it on "pick a subject" so yeah)
Len [333]

Answer:

Explanation:

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7. The tendency of sound waves to bend when they pass from one medium to a different medium is known as A. refraction C. resonan
ahrayia [7]

The tendency of sound waves to bend when they pass from one medium to a different medium is known a refraction.

<h3>What is refraction ?</h3>

In diffraction, a sound wave is bent or stretched out in a single medium where the sound speed remains constant. Refraction is a crucial instance in which sound waves arc or diffuse. Due to variations in the wave's speed, a sound wave bends in this occurrence.

A wave bends as it travels along the edge of an object or through an aperture. It is referred to as diffraction. When a wave transitions from one medium to another at an angle, it also bends. It's known as refraction.

Thus, The option A is correct.

To learn more about refraction follow the link below;

brainly.com/question/2660868

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7 0
1 year ago
What would the molecular formula be if lithium and sulfur reacted to form a neutral compound?
Fed [463]

Answer:

D

Explanation:

Lithium has one valence electron, so it has one to give away to have an outer shell of 8.

Sulfur has 6 valence electrons, so it needs 2 to get an outer shell of 8.

If we have two Li, that means sulfur will get 2 e- and Li will give away 2 e-, so the formula is Li₂S.

3 0
4 years ago
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A balloon with a pressure of 2.2 atm and a volume of 2.5 L is released in the mountains of Colorado. As the balloon ascends, the
CaHeK987 [17]

Answer:

1.38 atm

Explanation:

Using Boyle's law which states that the volume of a given mass of gas is inversely proportional to the pressure, provided temperature remains constant

P1V1= P2V2

P1 = 2.2 atm, V1 = 2.5L ,

P2 = ? , V2 = 4L

2.2 × 2.5  = P2 × 4

Divide both sides by 4

P2 = 5.5 ÷ 4

P2 = 1.38 atm

I hope this was helpful, please mark as brainliest

5 0
4 years ago
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