2 years ago

Which of the following best describes topsoil?

Chemistry

1 answer:

lutik1710 [3]2 years ago

7 0

Answer:

B. topsoil is made entirely of decomposed organic remains

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Rewrite the equation below using the correct conventions for stoichiometric coefficients. 2 BaCl2 + 2 H2SO4 → 2 BaSO4 + 4 HCl

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$BaCl2+H2SO4 \rightarrow BaSO4+2HCl$

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The given equation is:

$2 BaCl2+2H2SO4 \rightarrow2BaSO4+4HCl$

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2 moles of barium chloride (BaCl2) reacts with 2 moles of sulfuric acid (H2SO4) to form 2 moles of barium sulfate (BaSO4) and 4 moles of HCl

Although the reaction is balanced, the correct convention is to depict reactions in terms of the lowest molar ratio. Therefore the coefficients (2,2,4 and 4) can be divided by 2 to give:

$BaCl2+H2SO4 \rightarrow BaSO4+2HCl$

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