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3 years ago

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Meaning of carbon cycle

1 answer:

masha68 [24]3 years ago

7 0

The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms

4 steps of Carbon Cycle

Photosynthesis, Decomposition, Respiration and Combustion.

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Wine goes bad soon after opening because the ethanol in it reacts with oxygen gas from the air to form water and acetic acid , t

Fynjy0 [20]

Answer:

7.00 g

Explanation:

There is some information missing. I think this is the complete question:

<em>Wine goes bad soon after opening because the ethanol CH₃CH₂OH in it reacts with oxygen gas O₂ from the air to form water H₂O and acetic acid CH₃COOH, the main ingredient of vinegar. What mass of ethanol is consumed by the reaction of 4.86g of oxygen gas? Round your answer to 3 significant digits.</em>

<em />

First, we have to write the balanced equation.

CH₃CH₂OH + O₂ ⇒ CH₃COOH + H₂O

Then, we can establish the following relations:

The molar mass of O₂ is 32.0 g/mol
The molar ratio of O₂ to CH₃CH₂OH is 1:1
The molar mass of ethanol is 46.1 g/mol.

The mass of ethanol that reacts with 4.86 g of oxygen is:

$4.86gO_{2}.\frac{1molO_{2}}{32.0gO_{2}} .\frac{1molEt}{1molO_{2}} .\frac{46.1gEt}{1molEt} =7.00gEt$

4 0

3 years ago

In these solutions, identify the solute and the solvent. Sea water, a solution composed of a variety of salts dissolved in water

Yanka [14]

Answer:

The solvent is Nitrogen and the solute is oxygen

Explanation:

Normally the solvent always contains higher amount of substance than the solute in a particular solution

4 0

3 years ago

Read 2 more answers

a ______ consumer is a heterotroph that directly eats an autotroph. A primary B. Quaterany C tertiary D secondary

Softa [21]

Primary consumer just remember the “primary” (first) consumer so the one that eats a heterotroph

6 0

3 years ago

2 K + Cl2 → 2 KCI<br> How many grams of KCI (74.55 g/mol) is produced from 2.50 mol of K?

Rudik [331]

Answer: 186.3 g of $KCl$ will be produced from 2.50 mol of K

Explanation:

The balanced chemical reaction is:

$2K+Cl_2\rightarrow 2KCl$

According to stoichiometry :

2 moles of K produce = 2 moles of $KCl$

Thus 2.50 moles of $K$ will produce= $\frac{2}{2}\times 2.50=2.50moles$ of $KCl$

Mass of $KCl=moles\times {\text {Molar mass}}=2.50moles\times 74.55g/mol=186.3g$

Thus 186.3 g of $KCl$ will be produced from 2.50 mol of K

8 0

3 years ago

A 2.75 M solution is diluted to 0.706 M, if the starting volume was 0.833L, what is the new volume?

Nitella [24]

Answer:

3.2447

Explanation:

m1v1 = m2v2

8 0

2 years ago