Atoms will join together in order to create molecules.
To Find :
Gas’s temperature in Celsius when it has a volume of 25 L, 203 mol, 143.5 atm .
Solution :
We know, by ideal gas equation :
![PV =nRT\\\\T = \dfrac{PV}{nR}](https://tex.z-dn.net/?f=PV%20%3DnRT%5C%5C%5C%5CT%20%3D%20%5Cdfrac%7BPV%7D%7BnR%7D)
Here, R is universal gas constant and ![R = 0.082 \ L \ atm \ mol^{-1} \ K^{1}](https://tex.z-dn.net/?f=R%20%3D%200.082%20%5C%20L%20%5C%20atm%20%5C%20mol%5E%7B-1%7D%20%5C%20K%5E%7B1%7D)
Putting all given values and R in above equation, we get :
![T = \dfrac{PV}{nR}\\\\T = \dfrac{143.5\times 25}{203 \times 0.082}\ K\\\\T = 215.52\ K](https://tex.z-dn.net/?f=T%20%3D%20%5Cdfrac%7BPV%7D%7BnR%7D%5C%5C%5C%5CT%20%3D%20%5Cdfrac%7B143.5%5Ctimes%2025%7D%7B203%20%5Ctimes%200.082%7D%5C%20K%5C%5C%5C%5CT%20%3D%20215.52%5C%20K)
Hence, this is the required solution.
Covalent bonds are formed when 2 neutral atoms come together to share a pair of electrons, where each atom contributes one electron each to be shared.
The covalent bond is kept together by the electrostatic attraction between the nuclei of the atoms and the shared pair of electrons.
Covalent bonds are usually formed between non metals with a small difference in their electro negativity.
the correct answer is
A. Neutral atoms coming together to share electrons
Answer:
Atoms form chemical bonds to make their outer electron shells more stable. The type of chemical bond maximizes the stability of the atoms that form it. Covalent bonds form when sharing atoms results in the highest stability. Other types of bonds besides ionic and covalent chemical bonds exist, too.
The correcr anwer is B. The chemical bond between two oxygen atoms is a covalent bond, specifically double covalent bond. The two atoms share two pairs of electrons in order to achieve the most stable structure. Other examples are CO2 and C2H4.