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3 years ago

How many moles of magnesium ions are present in 283.8 mL of 6.74 M Mg3(PO4)2?

1 answer:

6 0

Answer:1 mole of Mg3(PO4)2 (molecule) contains 3 moles of Mg atoms, 2 moles of P atoms and 2X4 moles of O atoms. = 0.03125 moles.

Explanation:

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How many atoms of oxygen are present in the reactants and products? 6CO2+6H2O-> C6H12O6+6O2

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The following reaction occurs in a car’s catalytic converter.

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Answer:The correct answer is ;

The oxidation state of nitrogen in NO changes from +2 to 0, and the oxidation state of carbon in CO changes from +2 to +4 as the reaction proceeds.

Explanation:

$2NO(g)+2CO(g)\rightarrow N_2(g)+2CO_2(g)$

In an oxidation recation addition of oxygen atom takes place or loss of electrons takes place.

In an reduction reaction removal of oxygen atom takes place or gain of electrons takes place.

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In the given reaction , the carbon atom is present in +2 oxidation state in CO molecule and present in +4 oxidation state in $CO_2$ molecule. Hence ,carbon is getting oxidized that is oxidation reaction. CO is a reducing agent.

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3 years ago

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The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the fo

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In 1906 Harden and Young, in a series of classic studies on the fermentation of glucose to ethanol and CO2 by extracts of brewer

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Answer:

Answers to the (B) Part

1. A

2. D

3. B

Explanation:

Explanation of the (A) Part

G-3-P, also known as Glyceraldehyde-3-Phozphate.

In the dehydrogenase process of G-3-P, phosphate is a compulsory requirement.

During this process, the G-3-P is hereby changed or converted into 1,3-bisphosphoglycerate in presence of NAD+ and Pi. Note that the exhaustion of Pi signal the end of the glycolysis process.

Because there's is glucose in abundance (excess), the glucose is thus, phosphorylated to ATP but no Pi gets released.

During fermentation, CO₂ and Ethanol are produced. But if there's no fermentation of ethanol in the absence of oxygen (anaerobic condition) , the NADP+ will piled up.. So, no new NAD+ would be available for further glycolysis.

Pyruvate is converted to ethanol and CO2 to replenish NAD+ for glycolysis to proceed.

The hexose phosphate is piled up or accumulated to fructose 1, 6 bisphosphate.

The point between the energy input reaction preceding it and the energy forming reaction after it serves as the intermediary of the reaction.

Because of unavailability of P, G-3-P is not broken down. Hence, the reaction will backflow to fructose 1, 6 bisphosphate, which is more stable.

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3 years ago