Answer:(1)The urinary system's function is to filter blood and create urine as a waste by-product.
(2) two kidneys we have.
(3)The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances.
(4)Two ureters.
These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys.
(5)A hollow, muscular, balloon-shaped organ that expands as it fills with urine.
(6)The urethra is the vessel responsible for transporting urine from the bladder to an external opening in the perineum.
(7)Urine is formed in the kidneys through a filtration of blood. The urine is then passed through the ureters to the bladder, where it is stored. During urination, the urine is passed from the bladder through the urethra to the outside of the body.
Explanation:
Answer:
D.When the boiling points of the components are different
Explanation:
I believe the formal name for this procedure is actually distillation.
Fe + 3NaBr → FeBr3 + 3Na
The Na is replaced by the Fe atom.
Answer:
Answer is given below.
Explanation:
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<em>Alkalinity = 400 mg/L in terms of CaCO3 </em>
<em>a.) Total Hardness is defined as the sum of calcium and magnesium iion concentration in terms of CaCO3
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<em>Total Hardness = [Ca+2]*{50/20) + [Mg+2]*{50/12) = [200]*{50/20) + [60]*{50/12) = 750 mg/L in terms of CaCO3
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<em>b.) Non-Carbonate hardness = Total Hardness - Carbonate Hardness
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<em>Now here as the Total Hardness is greater than alkalinity ,Thus
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<em>Carbonate Hardness = Alkanlinity = 400 mg/L in terms of CaCO3
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<em>Non-Carbonate hardness = 750 - 400 = 350 mg/L in terms of CaCO3
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<em>c.) As Total hardness is greater than Alkalinity thus Carbonate hardness is equal to the Alkalinity.
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<em>Carbonate hardness = 400 mg/L in terms of CaCO3
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<em>d.) Now as the Total hardness of the ground water is more than 180 mg/L,Thus it needs removal of hardness.
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<em>There are many treatment options for the removal of hardness:
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<em>i) Ion Exchange method
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<em>ii) Lime soda method</em>
In ancient times the elements meant : water, fire, earth, and air. However the modern definition of elements is a pure substance that cannot be broken down into a simpler substance.