Answer:
c) They come from polyunsaturated fats.
a) You must get them from food sources.
Explanation:
Polyunsaturated fatty acids are essential fatty acids. Omega-3 and omega-6 are the two types of important fatty acids. Saturated fatty acids, like all other fats, play a crucial function in the body. The most important fats, on the other hand, are those that the body cannot produce and must therefore be obtained from diet. These EFAs are made up of linoleic acid (omega-6 group) and alpha-linolenic acid (omega-3 group) (omega-3 group). Both categories of essential fatty acids are required for survival. EFA insufficiency is frequent in the general population for a variety of causes, as is a disproportionate intake of omega-6 fatty acids compared to omega-3 fatty acids. As a result, eating the correct meals is critical to ensuring that you get enough and the right kinds of vital fatty acids. But there's a lot more to the story. Increased consumption of certain important fatty acids, alone or in combination with other fats and chemicals, has been proven in studies to enhance health, aid in the treatment of certain disorders, and even improve body composition, mental and physical performance. Most of the lipids required by the human body may be synthesized from other fats or basic materials. Omega-3 fatty acids are an exception (also called omega-3 fats and n-3 fats). These are necessary fats, which the body cannot produce on its own and must obtain from diet.
The Lewis structure depicts the number valence electrons surrounding an atom. These are the electrons present in the outer shells which can participate in bonding with another atom or remain as non-bonding (lone pair) electrons.
In the given example there are 7 dots or 7 electrons surrounding a Cl atom. This corresponds to 7 valence electrons with a configuration that can be given as: s²p⁵ and specifically, 2s²2p⁵
Answer:
Explanation:
4NH₃ + 3O₂- --> 2N₂ + 6 H₂O
4 mole 3 moles 2 moles 6 moles
4 moles of NH₃ reacts with 3 moles of oxygen
1.37 moles of NH₃ reacts with 3 x 1.37 / 4 mols of oxygen
corresponding amount of O₂ = 3 x 1.37 / 4 mols
= 1.0275 moles
corresponding amount of N₂ = 2 x 1.37 / 4 moles
= .685 moles
corresponding amount of H₂O = 6 x 1.37 / 4 moles
= 2.055 moles
Given amount of product N₂ = 3.82 moles
corresponding amount of NH₃ = 4 x 3.82 / 2 moles
= 7.64 moles
corresponding amount of O₂ = 3 x 3.82 / 2 moles
= 5.73 moles
corresponding amount of H₂O = 6 X 3.82 / 2 moles
= 11.46 moles .
Answer:
False
Explanation:
Every chemical element undergoes a reaction in order to fulfill the completion of their outermost shell. This is the case of nitrogen (symbol "N"), which is an element found in group 5 of the periodic table with atomic number 7 (i.e. 1s2 2s2 2p3). It possesses three valence electrons in it's outermost shell.
Looking at the configuration of the Nitrogen atom, it requires three electrons to complete its electron shell. Hence, nitrogen will enter a reaction in order to have its need for THREE ELECTRONS met in order to have its electron shell full.
Note that, nitrogen enters a chemical reaction to look for three electrons not three neutrons.
Answer:
Trend in ionic character of bonds: Cs-F > Si-C > Br-Cl > Cl-Cl
(most) (least)
Explanation:
We know that, percentage ionic character of a bond is proportional to electronegativity difference between two constituting atoms.
Atom Electronegativity
Cs 0.7
F 4.0
Cl 3.0
Br 2.8
Si 1.8
C 2.5
Bond Electronegativity difference
Cs-F 3.3
Cl-Cl 0.0
Br-Cl 0.2
Si-C 0.7
So trend in ionic character of bonds:
Cs-F > Si-C > Br-Cl > Cl-Cl
(most) (least)