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AnnyKZ [126]
3 years ago
13

6. In our modern times, the atom can be subdivided into

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
8 0

Answer:

C.) protons, neutrons, and electrons, only

Explanation:

According to the modern atomic theory, we can distinguish 2 parts in an atom:

  • The nucleus, where is the majority of the mass of the atom, that is, protons and neutrons
  • The external shell, where are the electrons.

In a neutral atom, there are the same number of protons (positive charges) as electrons (negative charges).

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ammonium nitrate, which is prepared from nitric acid, is used as a nitrogen fertilizer. determine the percent composition of amm
Alina [70]

Answer:

Ammonium nitrate, (NH4NO3), a salt of ammonia and nitric acid, used widely in fertilizers and explosives. The commercial grade contains about 33.5 percent nitrogen, all of which is in forms utilizable by plants; it is the most common nitrogenous component of artificial fertilizers.

5 0
2 years ago
What is something that has mass and takes up space
Leni [432]
Humans.
Humans have mass and take up space. :)

Hope this helps!
5 0
3 years ago
Read 2 more answers
(HELP FAST)Which of the following always changes when a substance undergoes a<br> chemical change?
Lera25 [3.4K]
I’m pretty sure it’s a
7 0
2 years ago
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Balance the following chemical equation (with all steps)
WARRIOR [948]

Answer:

Balanced chemical equation:

2Al + 3H₂SO₄  →  Al₂(SO₄)₃ + 3H₂

Explanation:

Chemical equation:

Al + H₂SO₄  →  Al₂(SO₄)₃ + H₂

Balanced chemical equation:

2Al + 3H₂SO₄  →  Al₂(SO₄)₃ + 3H₂

Steps:

Let balance the SO₄ first.

Al + 3H₂SO₄  →  Al₂(SO₄)₃ + H₂

There are three H₂ on left so put the coefficient three on right too.

Al + 3H₂SO₄  →  Al₂(SO₄)₃ + 3H₂

Two Al  on right and one on left so we will put the coefficient two on left.

2Al + 3H₂SO₄  →  Al₂(SO₄)₃ + 3H₂

All atoms are correctly balanced.

3 0
3 years ago
Problem: Convert 30 cm to mm.<br> Need full process pls help
marta [7]

Answer: 300mm

Explanation:

30cm x (10mm/1cm) x <em>(1mm/1mm)</em> = 300mm

<em>Btw, I'm not sure about the </em><u><em>(1mm/1mm).</em></u>

3 0
3 years ago
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