2 years ago

Can you tell me about atoms

Chemistry

1 answer:

trasher [3.6K]2 years ago

4 0

Answer:

is the smallest unit of ordinary matter that forms a chemical element.

Explanation:

and were created after the Big Bang 13.7 billion years ago.

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vodomira [7]

3 millimeters is the rock

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3 years ago

Calculate the number of moles of C2H6 in 6.29×1023 molecules of C2H6.

Kipish [7]

1.05moles

Explanation:

Given parameters:

Number of molecules of C₂H₆ = 6.29 x 10²³molecules

Unknown:

Number of moles = ?

Solution:

The mole is the amount of substances that contains Avogadro's number of particles i.e 6.02 x 10²³

To find the number of moles:

number of moles = $\frac{number of particles}{Avogadro's number}$

number of moles = $\frac{6.29 x 10^{23} }{6.02 x 10^{23} }$

number of moles = 1.05moles

Learn more:

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2 years ago

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vladimir2022 [97]

Answer:

3rd

Explanation:

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3 years ago

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50 POINTS! ANSWER FAST!

Korvikt [17]

Given:

The initial energy of the electron Einitial = 16.32 * 10⁻¹⁹ J

The energy released i.e the change in energy ΔE = 5.4 * 10⁻¹⁹ J

To determine:

The final energy state Efinal of the electron

Explanation:

Since energy is being released, this suggests that Efinal < Einitial

i.e. ΔE = Einitial - Efinal

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Ans: A)

The electron moved down to an energy level and has an energy of 10.92 * 10⁻¹⁹ J

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3 years ago

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What is the valence of Fluorine

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7 valance electrons and a atomic number of 9

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