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Kisachek [45]
3 years ago
8

What do physicists study?

Chemistry
1 answer:
Andrei [34K]3 years ago
6 0

Answer:

The answer is option b.

Explanation:

Why? Because physicists and astronomers explore the dimensions of the universe… from the vastness of intergalactic space… to minute subatomic particles. They study the ways different forms of matter and energy interact.

I hope  this helps you!

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Calculate the number of CO2 molecules in 1.5 moles
sineoko [7]

n =  \frac{n1 }{l}
n = number of moles
n1= number of molecules
l = avagadro constant
1.5 =  \frac{n1}{6.022 \times  {10}^{23} }
now find n1
6 0
3 years ago
Arrange the three common unit cells in order from least dense to most dense packing. a. face-centered cubic < body-centered c
maks197457 [2]

Answer:

b. primitive cubic < body-centered cubic < face-centered cubic  

Explanation:

The coordination number is defined as <em>the number of atoms (or ions) surrounding an atom (or ion) in a crystal lattice</em>. Its value gives us a measure of how tightly the spheres are packed together. The larger the coordination number, the closer the spheres are to each other.

  • In the <u>primitive cubic</u>, each sphere is in contact with 6 spheres, so its <u>coordination number is 6</u>.
  • In the <u>body-centered cubic</u>, each sphere is in contact with 8 spheres, so its <u>coordination number is 12</u>.
  • In the <u>face-centered cubic</u>, each sphere is in contact with 12 spheres, so its <u>coordination number is 12</u>.

Therefore, the increasing order in density is the primitive cubic first, then the body-centered cubic, and finally the face-centered cubic.

3 0
3 years ago
What are the fundamental particles of an atom<br>​
tatyana61 [14]

Protons, neutrons, and electrons are the fundamental subatomic particles.

5 0
3 years ago
Help it’s about Binary compounds and transition metals
Musya8 [376]

Answer:

Cr 6+ & SO4 2-

Explanation:

Sulfate is a polyatomic ion that has a charge of 2-. There are three of them in the chemical formula so it equates to a 6- total charge. Thus, chromium must have a 6+ charge to give the compound a neutral charge.

8 0
3 years ago
Who was the most important scientist in the development of the Modern Atomic Theory?
-BARSIC- [3]

Answer:

John Dalton, an English chemist, meteorologist, and physicists, was best known for his development of the modern atomic theory

Explanation:

4 0
4 years ago
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