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navik [9.2K]
3 years ago
8

What type of reaction occurs when complex compounds are broken down into simpler substances?

Chemistry
1 answer:
Zarrin [17]3 years ago
4 0
Complex compounds are broken down to simpler substances in catabolic reactions.

These kinds of reactions often occur in biological systems. In living organisms, complex compounds like lipids, proteins and complex sugar like cellulose are broken down into simpler forms. Products of these reactions are simple sugars, amino acids etc. but a certain amount of energy is also produced and stored in energy molecules for future use.
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How many moles of I2 will form 3.58 g of NI3?
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1.       The balanced chemical reaction is:

 

N2 +3 I2 = 2NI3

 

We are given the amount of product formed. This will be the starting point of our calculations.

 

3.58 g NI3 ( 1 mol NI3 / 394.71 g NI3 ) ( 3 mol I2 / 2 mol NI3 ) = 0.014 mol I2.

 

Thus, 0.014 mol of I2 is needed to form the given amount of NI3.

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What is Diffraction means?
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3 years ago
Ammonia is the most common and well-known weak base. A sample of household ammonia has a pH of 11.8. Determine its concentration
Galina-37 [17]

The given question is incomplete. The complete question is:

A sample of household ammonia has a pH of 11.50. What is the hydronium ion concentration of this solution?

Answer: The hydronium ion concentration of the solution is 1.58\times 10^{-12}M

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration. Acids have pH ranging from 1 to 6.9 and bases have pH ranging from 7.1 to 14.

NH_3+H_2O\rightarrow NH_4^++OH^-

pH=-\log [H^+]

11.8=-log [H^+]

[H^+]=antilog(-11.8)

[H^+]=1.58\times 10^{-12}M

Thus hydronium ion concentration of this solution is 1.58\times 10^{-12}M

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