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Aliun [14]
3 years ago
14

Which statements best describes a major difference types of elements

Chemistry
1 answer:
Sever21 [200]3 years ago
6 0

Answer:

The atoms of different elements have different numbers of protons and electrons.

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A container is filled with hydrogen gas. It has a volume of 4 liters and a pressure of 2 atm. If the pressure of the container i
Dennis_Churaev [7]

Answer:

1.33 L.

Explanation:

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where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

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R  is the general gas constant,

T is the temperature of the gas in K.

  • If n and T are constant, and have different values of P and V:

<em>(P₁V₁) = (P₂V₂)</em>

<em></em>

Knowing that:

V₁  =  4.0 L, P₁ = 2.0 atm,

V₂  =  ??? L, P₂ = 6.0 atm.

  • Applying in the above equation

(P ₁V₁) = (P₂V₂)

<em>∴ V₂ = P ₁V₁/P₂</em> = (2.0 atm)(4.0 L)/(6.0 atm) =<em> 1.33 L.</em>

4 0
3 years ago
What monatomic ions do selenium (z = 34) and phosphorus (z = 15) form? (type your answer using the format [cu]+ for cu+ and [cu]
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The answer:
for the monoatomic <span>selenium ions
</span>    -the ion charge of selenium is 2-, so the answer is [Se]2+ 
as for the monoatomic phosphorus ions
    -the ion charge of phosphorus is 3-, so the answer is [P]3- 
6 0
2 years ago
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