Chemistry, 11.02.2020 22:30 kalbaugh

Which of the following accurately represents a carbon source and the process that releases carbon from that source? A. Fossil fuels, respiration B. Animals, photosynthesis C. Plants, cellular respiration D. Biocarbonate, combustion E. Limestone, combustion

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Answer from: dondre54

Plants and cellular respiration accurately represents a carbon source and

the process that releases carbon from that source respectively.

Plants produce their food through photosynthesis in which

Glucose(C₆H₁₂O₆) is formed. The glucose formed is a source of Carbon for

organisms in the ecosystem.

Fossil fuels such as coal, crude oil contain high amount of carbon which are

released into the atmosphere when they are burned or used by automobiles,

industries etc.

This makes option C the most appropriate choice.

Read more about Carbon sources here link

Answer from: damilysgonzalez2

Option C

Plants, cellular respiration accurately represents a carbon source and the process that releases carbon from that source

Explanation:

Every existing body supplies CO2 off while they evoke power from their food through cellular respiration. Plants and creatures present off CO2 while living and respiring and during lifeless and rotting. Plants are significant carbon sinks, gaining up enormous volumes of CO2 through the manner of photosynthesis.

While plants also discharge CO2 during the means of respiration, the volume of CO2 exercised up by plants by photosynthesis and discharged by exhalation approximately matches out. Volcanic action, forest wildfires, and diverse anthropological exercises deliver carbon.

Answer from: Quest

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Answer from: Quest

Answerthis solution will not form a precipitateexplanationsolubility equilbrium: pbf₂(s) ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is $k_{sp} = [\text{pb}^{2+}][\text{f}^- ]^2 = 4 \times 10^{-8}$ (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as $q = [\text{pb}^{2+}]_{\text{initial}} \cdot [\text{f}^- ]^2_{\text{initial}}$ then, we can interpret q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product: $\begin{aligned} q & = [\text{pb}^{2+}]_{\text{initial}} \cdot [\text{f}^- ]^2_{\text{initial}} \\ & = (1.9 \times 10^{-3} ) (3.8\times 10^{3})^2 \\ & = 2.7 \times 10^{-8} \end{aligned}$ since q = 2.7 × 10⁻⁸ < ksp = 4 × 10⁻⁸, a precipitate will not form.

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Which of the following accurately represents a carbon source and the process that releases carbon fr...