2H20+1O2——> 2H2O should be the answer
Since it is stated that it is an ideal gas, we use the ideal gas equation to solve the volume of this gas sample. The ideal gas equation is expressed as:
PV = nRT
V = nRT / P
V = 0.200 (8.314) (400) / 200x10^3
V = 3.33 x 10^-3 m³ or 3.33L
Therefore, the correct answer is option B.
<h2>COVALENT BOND</h2>

- What happens to the electrons in a completely covalent bond?

- <u>Covalent bonding</u> <u>occurs when atoms share electron pairs</u>. To increase their stability, atoms will form covalent bonds with other atoms, <u>which is accomplished by forming a full electron shell</u>. By sharing their outermost (valence) electrons, atoms can fill up their outer electron shells and gain stability.
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<h3>#ProvideUniqueAnswers</h3>
Maybe isotopes but if you need a name isotopes of carbon because their number of electrons remains unchanged