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3 years ago

What is formed when atoms join together with a covalent bond?

Chemistry

2 answers:

satela [25.4K]3 years ago

6 0

Answer: B. a molecule

Explanation: Covalent bond is formed by the sharing of electrons between atoms.

$H_2$ is a molecule formed by the sharing of electrons between two hydrogen atoms.

An ion is formed by losing or gaining electrons.

$Na^+:10:[Ne]$

A neutral atom is one which contains equal number of protons and neutrons.

$Na:11:[Ne]3s^1$

A noble gas is one which contains completely filled orbitals.

$Ne:10:1s^22s^22p^6$

Feliz [49]3 years ago

5 0

B) a molecule

A molecule is formed when two atoms join together with a covalent bond.

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At what temperature would 2.10moles of N2 gas have a pressure of 1.25atm and fill a 25.0 L tank

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Answer:

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Explanation:

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pV = nRT

Data

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Calculations

1. Temperature in kelvins

$\begin{array} {rcl}pV & = & nRT\\\text{1.25 atm} \times \text{25.0 L} & = & \rm\text{2.10 mol} \times 0.08206 \text{ L}\cdot\text{atm}\cdot\text{K}^{-1}\text{mol}^{-1} \times T\\31.25&=&0.09847T\text{ K}^{-1}\\T& = &\dfrac{31.25}{\text{0.098 47 K}^{-1}}\\\\& = &\text{181 K}\end{array}$

2. Temperature in degrees Celsius

$\begin{array} {rcl}T & = & (181 - 273.15) \, ^{\circ}\text{C}\\& = & -92 \, ^{\circ}\text{C}\\\end{array}\\\text{The temperature of the gas is $\large \boxed{\mathbf{-92 \, ^{\circ}}\textbf{C}}$}$

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https://1.cdn.edl.io/tTlW7xRtvD62xSe7RcZlJr7kSR7XsL93akcgJkbGJBNNcpwY.pdf

*this link can also help* brainly ist plz

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