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Consider the following elements and their percentages by mass:
1. 65 percent Oxygen
2. 18.5 percent Carbon
3. 9.5 percent Hydrogen
4. 3.3 percent Nitrogen
Which of the following consists of the elements in proportion mentioned above?
- a)Earth's crust
- b)Mineral water
- c)Human body
- d)The Sun
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following elements and their percentages by mass:1. 65 pe...
- About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are necessary for life.
- The human body consists of the following elements; 65% oxygen (by mass) is in the blood and 18%- 18.5% carbon. It contains 9 to 10% hydrogen and nearly 3.3% nitrogen. Hence option (c) is the correct answer.
- The composition of Earth's crust is shown below in the pie chart. The earth's crust contains a reasonable amount of silica (and 28 % silicon).
- In water (also mineral water), the weight percentage of Oxygen is 88.8%.
- By mass, the Sun is about 70.6% hydrogen and 27.4% helium.
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Consider the following elements and their percentages by mass:1. 65 pe...
Human body
The human body consists of the elements Oxygen, Carbon, Hydrogen, and Nitrogen in the proportions mentioned above.
Explanation:
1. Oxygen (65%)
- Oxygen is the most abundant element in the human body, making up about 65% of the total mass.
- It is a key component of water and is essential for respiration and energy production in cells.
2. Carbon (18.5%)
- Carbon is the second most abundant element in the human body, comprising approximately 18.5% of the mass.
- It is the building block of all organic molecules, including proteins, carbohydrates, fats, and nucleic acids.
3. Hydrogen (9.5%)
- Hydrogen is the third most abundant element in the human body, making up around 9.5% of the total mass.
- It is a component of water and is involved in various biochemical reactions in the body.
4. Nitrogen (3.3%)
- Nitrogen is the least abundant of the four elements mentioned, comprising about 3.3% of the mass of the human body.
- It is a key component of proteins, nucleic acids, and other important biomolecules.
Therefore, the proportions of Oxygen, Carbon, Hydrogen, and Nitrogen in the human body align with the percentages given, making it the correct option.
The human body consists of the elements Oxygen, Carbon, Hydrogen, and Nitrogen in the proportions mentioned above.
Explanation:
1. Oxygen (65%)
- Oxygen is the most abundant element in the human body, making up about 65% of the total mass.
- It is a key component of water and is essential for respiration and energy production in cells.
2. Carbon (18.5%)
- Carbon is the second most abundant element in the human body, comprising approximately 18.5% of the mass.
- It is the building block of all organic molecules, including proteins, carbohydrates, fats, and nucleic acids.
3. Hydrogen (9.5%)
- Hydrogen is the third most abundant element in the human body, making up around 9.5% of the total mass.
- It is a component of water and is involved in various biochemical reactions in the body.
4. Nitrogen (3.3%)
- Nitrogen is the least abundant of the four elements mentioned, comprising about 3.3% of the mass of the human body.
- It is a key component of proteins, nucleic acids, and other important biomolecules.
Therefore, the proportions of Oxygen, Carbon, Hydrogen, and Nitrogen in the human body align with the percentages given, making it the correct option.
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Consider the following elements and their percentages by mass:1. 65 percent Oxygen2. 18.5 percent Carbon3. 9.5 percent Hydrogen4. 3.3 percent NitrogenWhich of the following consists of the elements in proportion mentioned above?a)Earths crustb)Mineral waterc)Human bodyd)The SunCorrect answer is option 'C'. Can you explain this answer?
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