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12345 [234]
3 years ago
13

The word nucleus is used to describe both cellular and atomic nuclei. What is the difference between each in size and contents?​

Chemistry
1 answer:
weeeeeb [17]3 years ago
7 0
Well atoms make the cells and their nucleus are made of protons and neutrons. While cellular nucleus are what controls the cell
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A scientist has isolated a fatty acid that has 26 carbons. most of the carbon atoms in the fatty acid chain are connected by sin
Shtirlitz [24]
Answer:
            <span>Based on giveninformation, the compound is a <u>Poly Unsaturated</u> fatty acid.

Explanation:
                   Fatty acids are carboxylic acids with -COOH functional group and a chain of hydrocarbons.

Fatty Acids are classified as,

i) Saturated Fatty Acids:
                                      Those Fatty Acids in which there is no double bond between the carbon chain are called as saturated fatty acids. 

Examples:
                 Lauric Acid           </span>CH₃(CH₂)₁₀COOH<span>

                 Myristic Acid         </span>CH₃(CH₂)₁₂COOH<span>

                 Palmitic Acid         </span>CH₃(CH₂)₁₄COOH

ii) Unsaturated Fatty Acids:
                                      Those Fatty Acids in which contain a single double bond (mono-unsaturated) or more than one double bond (poly-unsaturated) d between the carbon atoms in a chain are called as unsaturated fatty acids. 

Examples:
                 <span>Linoleic acid
</span>
                 <span>Vaccenic acid

                 </span><span>Palmitoleic acid

The saturated fatty acid containing 26 carbon atoms is called as Cerotic acid. While cerotic acid containing a double bond at position 3 and 9 has a IUPAC name H</span>exacosa-3,9-dienoic acid with following structure.

3 0
3 years ago
At an atmospheric pressure of 870 mm hg of 21% oxygen, the partial pressure of oxygen is
BARSIC [14]
Atmosphere is made of a mixture of gases. Each individual gas exerts a pressure known as the partial pressure.
The sum of the partial pressures exerted by each gas in the mixture is equal to the total pressure exerted by the mixture of gases as a whole.
The partial pressure depends on the composition of the gas in the mixture.
In this case the total pressure - 870 mmHg
21% of atmosphere is oxygen
partial pressure of Oxygen = 870 mmHg x 21%  = 182.7 mmHg
7 0
4 years ago
How much heat is needed to raise a 0.30 g piece of aluminum from 30.C to 150C? The specific heat of aluminum 0.900j/gC
OLEGan [10]

Answer:

hi

Explanation:

8 0
3 years ago
How do the scientist know that cells exist
IrinaVladis [17]
Because of us and other cells from plants and Animals
7 0
3 years ago
Please i need the answer for 18,19,20<br><br><br>Answer and I will give you brainiliest <br>​
dezoksy [38]
Number 18 is correct, number 19 is the particles speed up and the substance expands, and number 20 is decrease in volume
8 0
3 years ago
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