A 1.0 L balloon at 30°C contains 0.030 mol hydrogen gas and 0.010 mol helium gas. What is the total pressure of the balloon if the partial pressure of helium is 0.25 atm?

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

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answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.