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Verizon [17]
3 years ago
10

Describe molecules *no plagiarism like google etc!*

Chemistry
1 answer:
Setler [38]3 years ago
6 0

Answer:

Molecules are made up of atoms.(2 or more) They are what's on the table of elements; they are like building blocks to chemical compounds.

Hope this helps! (^-^)

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Which characteristic best explains the difference in melting behavior of covalent substances and ionic substances? Ionic substan
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Answer:

Covalent substances have weaker intermolecular attractions.

Explanation:

i just took the test

3 0
3 years ago
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Calculate the number of grams of Hydrogen required to produce 5.73 grams of water. 2H2+O2--->2H2O 2 grams 0.636 grams 1.2 gra
rusak2 [61]

Explanation:

32

2H

2

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Molecular mass of O

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From the balanced chemical equation,

2×2=4 g of hydrogen requires 32 g of Oxygen to react completely

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An electron in the hydrogen atom makes a transition from an energy state of principal quantum number ni to the n = 2 state. If t
topjm [15]

Answer:

\boxed{3}

Explanation:

The Rydberg equation gives the wavelength λ for the transitions:

\dfrac{1}{\lambda} = R \left ( \dfrac{1}{n_{i}^{2}} - \dfrac{1}{n_{f}^{2}} \right )

where

R= the Rydberg constant (1.0974 ×10⁷ m⁻¹) and

\text{$n_{i}$ and $n_{f}$ are the numbers of the energy levels}

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Calculation:  

\begin{array}{rcl}\dfrac{1}{657 \times 10^{-9}} & = & 1.0974 \times 10^{7}\left ( \dfrac{1}{2^{2}} - \dfrac{1}{n_{f}^{2}} \right )\\\\1.522 \times 10^{6} &= &1.0974\times10^{7}\left(\dfrac{1}{4} - \dfrac{1}{n_{f}^{2}} \right )\\\\0.1387 & = &\dfrac{1}{4} - \dfrac{1}{n_{f}^{2}} \\\\-0.1113 & = & -\dfrac{1}{n_{f}^{2}} \\\\n_{f}^{2} & = & \dfrac{1}{0.1113}\\\\n_{f}^{2} & = & 8.98\\n_{f} & = & 2.997 \approx \mathbf{3}\\\end{array}\\\text{The value of $n_{i}$ is }\boxed{\mathbf{3}}

7 0
3 years ago
Rain washing away soil from a hillside
Aneli [31]

Answer:

deposition

Explanation:

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3 years ago
6. What is the number of moles of KF in a 29 gram sample?
stich3 [128]
Not sure but it might be A or B
3 0
3 years ago
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