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Mariana [72]
3 years ago
11

If an atom has 6 protons and 5 neutrons, what is its mass? _________ amu

Chemistry
2 answers:
4vir4ik [10]3 years ago
7 0
The person above is right
hram777 [196]3 years ago
6 0

Answer:An atom has 5 protons, 5 electrons and 6 neutrons The atomic number = number of protons = number of electrons = 5 The mass number = 5 protons + 6 neutrons = 11

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The partial pressures of the gases in a mixture are 0.255 atm 0, 3.24 atm Ny,
katovenus [111]
<h3>Answer:</h3>

4.945 atm

<h3>Explanation:</h3>
  • Based on Dalton's law of Partial pressure, the total pressure of a mixture of gases is equivalent to the sum of individual partial pressures of the gases in the mixture.
  • That is;

Pt = P1+P2+P3+P4+............+ Pn

In this case;

Partial pressure of Oxygen, P(O) = 0.255 atm

Partial pressure of N, P(N) = 3.24 atm

Partial pressure of Ar, P(Ar) = 1.45 atm

Therefore;

P(total) = P(O) + P(N) + P(Ar)

           = 0.255 atm + 3.24 atm + 1.45 atm

           = 4.945 atm

Therefore, the total pressure of the mixture is 4.945 atm

6 0
4 years ago
Select the correct answer. Which scientist performed the cathode ray experiment leading to the discovery of electrons? A. Dalton
MrRa [10]
Hi,
The answer should be letter E, Thomson.
4 0
3 years ago
Read 2 more answers
How many grams of hcl can dissolve in 200 g of water at 60 c?
Eddi Din [679]

The solubility curve is a plot of solubility against temperature.

<h3>What is solubility?</h3>

The term solubility refers to the amount of substance that dissolves in solution at a given temperature. Hence, the solubility curve is a plot of solubility against temperature.

Thus, from the solubility curve (not shown) the amount if HCl dissolved can be obtained hence the question is incomplete.

Learn more about solubility:brainly.com/question/8591226

#SPJ1

8 0
2 years ago
Question is in the picture
wariber [46]

Answer:

repelled

Explanation:

like charges repel one another

8 0
4 years ago
Write balanced chemical equations for the two ionization steps of sulfuric acid
madreJ [45]
Hello!

Sulfuric acid (H₂SO₄) is a strong diprotic acid. "Diprotic" means that the acid donates 2 protons when dissociating in water to form ions. This happens in a series of two steps which are described below. The first reaction is basically a complete reaction while the second one is an equilibrium:

H₂SO₄(aq) + H₂O(l) → HSO₄⁻(aq) + H₃O⁺(aq)

HSO₄⁻(aq) + H₂O(l) ⇄ SO₄⁻²(aq) + H₃O⁺(aq)

Have a nice day!
7 0
4 years ago
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