B) H₂
Explanation:
Only H₂ is a non-polar covalent molecule among the given options. A non-polar covalent bond forms between homonuclear atoms that are chemically bonded.
- In the formation of covalent bonds, each atom shares the valence electrons in their outer energy shells to be able to mimic the noble gases.
- In homonuclear molecules, the two bonding atoms are of the same kind and the electronegativity difference is zero.
- The covalent bond between them is a called a non-polar covalent bond.
- Here there is equal sharing of the electron pair between the pair of atoms and there is no electrostatic charge on the molecule.
Learn more:
chemical bonds brainly.com/question/10903097
carbon bonds brainly.com/question/10901976
bond types brainly.com/question/11730855
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<u>Answer:</u> The partial pressure of sulfur dioxide gas in the flask is 160 mmHg
<u>Explanation:</u>
We are given:
Moles of sulfur dioxide gas = 0.25 moles
Moles of methane gas = 0.50 moles
Moles of oxygen gas = 0.50 moles
To calculate the mole fraction of sulfur dioxide, we use the equation:
The partial pressure of a gas is given by Raoult's law, which is:
where,
= partial pressure of sulfur dioxide gas
= total pressure = 800 mmHg
= mole fraction of sulfur dioxide = 0.2
Putting values in above equation, we get:
Hence, the partial pressure of sulfur dioxide gas in the flask is 160 mmHg
The volume of iron is obtained from the density formula (density= mass/ volume) given the density and mass. In this case, 3,880 grams of iron and a density of 7.86 g/ml are given. The volume obtained from formula is 493.64 ml or 4.94 dL.