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alexdok [17]
2 years ago
5

Which statement best describes how electrons till orbitals in the penodic table?

Chemistry
1 answer:
nordsb [41]2 years ago
8 0

Answer:

Electrons fill orbitals in order of increasing orbital energy

Explanation:

Apex

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Suppose that the root-mean-square velocity vrms of water molecules (molecular mass is equal to 18.0 g/mol) in a flame is found t
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Answer:

T=954.41\ K

Explanation:

The expression for the root mean square speed is:

C_{rms}=\sqrt {\dfrac {3RT}{M}}

R is Gas constant having value = 8.314 J / K mol  

M is the molar mass of gas

Molar mass of water vapor = 18.0 g/mol  = 0.018 kg/mol

Temperature = ?

C_{rms}=1150  m/s

1150=\sqrt{\frac{3\times 8.314\times T}{0.018}}

1322500=\frac{24.942T}{0.018}

T=954.41\ K

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What are the extremely small particles that all elements are composed of?
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Why did bohrs observations of gaseous elements not reveal a complete spectrum when the light was shone through a prism? explain
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Which statement best describes the formula equation cl1(g) + 2kbr(aq) —> 2kcl(aq)+br2(i)
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Answer:

The chlorine gas and potassium bromide solution react to form liquid  bromine and potassium chloride solution.

Explanation:

Chemical equation:

Cl₂(g) + KBr (aq) → KCl (aq) + Br₂(l)

Balanced chemical equation:

Cl₂(g) + 2KBr (aq) → 2KCl (aq) + Br₂(l)

This equation showed that the chlorine gas and potassium bromide solution react to form liquid  bromine and potassium chloride solution.

Chlorine is more reactive than bromine it displace the bromine from potassium and form potassium chloride solution.

The given equation is balanced and completely hold the law of conservation of mass.

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

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