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Rus_ich [418]
4 years ago
9

A student is setting up a model to study the carbon cycle and natural sources of carbon dioxide. They create a microenvironment

that contains soil, leaf debris, an earthworm, heterotrophic bacteria, and a sun lamp. What natural source of carbon dioxide and major metabolic process was left out of the model
Chemistry
1 answer:
cluponka [151]4 years ago
4 0

Fossil fuels, forest fires, and respiration and major metabolic process photosynthesis are left out of the model.                

<u>Explanation</u>:

  • The carbon cycle model contains all the activities but some points are missing in it. Oceans, the burning of fossil fuels should be explained.  Natural elements such as coal and natural gas are the main elements of the carbon cycle.
  • Because they are important compounds of the carbon cycle. The process of photosynthesis is very important in the carbon cycle. The process of volcanic eruption should be explained in the carbon cycle.        

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Your body uses about 24 grams of Glucose to run cellular respiration. How many molecules does your body need for cellular respir
BartSMP [9]

Answer:

for the cellular respiration the human body needs 1.424 E21 molecules of glucose

Explanation:

mass glucose = 24 g

∴ Mw glucose = 180.156 g/mol

∴ 1 mol ≡ 6.022 E23 molecules

⇒ mol glucose = (24 g)×(mol/180.156 g) = 0.1332 mol glucose

⇒ molecules glucose = (0.1332 mol glucose)×(6.022 E23 molecules/mol)

⇒ molecules glucose = 1.424 E21 molecules

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Answer:

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4 years ago
You are given a bottle of NaOH of an unknown concentration. You are tasked with determining the concentration of this solution.
Salsk061 [2.6K]

Answer:

0.07975 M NaOH

Explanation:

First determine the molarity of your acid, KHP. Convert grams to moles using the MW given and then divide by the volume of water.

0.3175 g KHP • (1 mol KHP / 204.2 g KHP) = 0.001555 mol KHP

0.001555 mol KHP / 0.040 L = 0.03888 M KHP

The reaction between KHP and NaOH is one-to-one, so you can just use M1V1 = M2V2 to solve for M2 (the molarity of NaOH).

M1 = 0.03888 M KHP

V1 = 40 mL

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V2 = 19.45 mL NaOH

(0.03888 M KHP)(40 mL) = M2(19.5 mL NaOH)

M2 = 0.07975 M NaOH

4 0
3 years ago
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Because of the environment that
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