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larisa [96]
2 years ago
5

Does the octet rule state that all elements except Hydrogen and Helium want eight (8) valence electrons?

Chemistry
1 answer:
zvonat [6]2 years ago
4 0

Answer:

yes

Explanation:

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Explanation:

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To calculate the mass percent of element in a given compound, we use the formula:

\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100

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The Law of Conservation of Mass states that the mass of reactants entering a reaction must be equal to the mass of the products exiting it. In this case, we only have 2 reactants, Fe and S, and we only have 1 product, FeS. Therefore we expect the total mass of the Fe and S reactants to equal the mass of FeS. This gives us 112 g + 64 g = 176 g of FeS, which is choice D.

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In which region is the substance in both the solid phase and the liquid phase ?
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If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, <u>work </u> is being done.

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