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.
Answer: OA is a balanced equation.
Explanation: For an equation to be balanced, the number of atoms and the total charge of each element in the reaction, of the product and reactant side must be the same.
Considering OA; 6 atoms of nitrogen is present in the reactant side. Shifting to the product side, 6 atoms of nitrogen is also present. Taking the other element in the reaction into account, the number of atoms of each element balances on both sides.
Answer: -
Baking soda having a pH of 9, has the maximum number of hydroxide ions.
Explanation: -
More the pH of a solution, the more basic it is and more the number of hydroxide ions it has.
From the question we find that
baking soda has a pH = 9
milk has a pH = 6
tomato juice has a pH = 3.5
vinegar has a pH = 2
Thus among them baking soda has the highest pH.
So baking soda is the most basic and has the maximum number of hydroxide ions.
Volume of air = 1200 ml
<h3>Further explanation</h3>
Given
20% Oxygen in air
240 ml Oxygen
Required
Volume of air
Solution
The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent
240 ml = 20% Oxygen
volume of air :
= 100%/20% x 240 ml
= 1200 ml
339 grams of CLF3 is formed when F2 is in excess and 130 grams of CL2 reacts.
Explanation:
The balanced chemical reaction for the formation of ClF3 is given by:
+ 3 ⇒ 2 Cl
the mass of Cl2 is given 130 grams
From the equation it is found that 2 moles of chloride reacts to form 2 moles of ClF3.
calculating the number of moles of chlorine by the formula:
Number of moles = mass of the substance ÷ atomic mass of one mole of the substance
n = 130 ÷ 35.45
= 3.6671 moles
So, applying stoichiometry
2 moles of Cl2 formed 2 moles of ClF3
3.6671 moles of Cl2 will form x moles of ClF3
2 ÷ 2 = x ÷ 3.6671
x = 3.6671 moles of ClF3
now from the formula of number of moles
weight is calculated as n × mass of the gas
3.6671 × 92.448
= 339.01 grams of ClF3 is formed.