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NISA [10]
3 years ago
6

Silicate particles from a construction site float through a heavily forested site and then make it into the upper troposphere wh

ere they become larger and gain a high organic carbon content. Explain what happened, with some reactions.
Chemistry
1 answer:
vivado [14]3 years ago
7 0

Answer:

There are two explanations to this: covalent network bonding and carbon-silicate cycle.

Explanation:

A network solid or covalent network solid is a chemical compound which is formed through a continued network of atoms or molecules held together by a covalent bond throughout the system. An example included C-C bond in graphite or C-Si bond in silicon carbide (tentative reaction equation below):

xSiO2 + yCO2→ SixCyO(2x+2y)

Si-Si bonds are not as strong as C-C bonds and can easily be displaced as the particles react with atmospheric CO2.

The second scenerio is when silicates such as calcium silicate CaSiO3, or wollastonite, reacts with atmospheric carbon dioxide and water to yield a calcium ion, Ca2+, a bicarbonate ion, HCO3-, and dissolved silica. This process occurs during carbon-silicate cycle and increase organic carbon content:

2CO2 + H2) + CaSiO3 → + SiO2CaCO3 + CO2 + H2)

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The number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.

<h3>How to calculate number of moles?</h3>

The number of moles in the formula units of a substance is calculated by dividing the formula unit by Avogadro's number.

According to this question, 3.20 x 10² formula units are in calcium iodide. The number of moles is as follows:

no of moles = 3.20 x 10²² ÷ 6.02 × 10²³

no of moles = 0.53 × 10-¹

no of moles = 0.053 moles

Therefore, the number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.

Learn more about number of moles at: brainly.com/question/12513822

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