What are the two most abundant elements by mass in the earth’s crust, oceans, and atmosphere? Does this make sense? Why? What are the four most abundant elements by mass in the human body? Does this make sense? Why?
Interpretation: The two most abundant elements by mass in the Earth's crust, oceans and atmosphere are to be stated with a valid explanation. Also, the four most abundant elements by mass in the human body are to be stated with a valid explanation.
Concept introduction: The element that has the highest concentration (by mass) on the Earth is known as the most abundant element of the Earth.
To determine: The name of the two most abundant elements by mass in the Earth's crust, oceans and atmosphere with valid explanation; the name of the four most abundant elements by mass in the human body with a valid explanation.
Answer to Problem 1RQ
Answer
Oxygen and silicon are the two most abundant elements by mass in the Earth's crust, oceans and atmosphere.
Carbon, hydrogen, nitrogen and oxygen are the most abundant elements by mass in the human body.
Explanation of Solution
Explanation
Oxygen and silicon are the two most abundant elements by mass in the Earth's crust, oceans and atmosphere.
Yes, this makes sense. Earth’s crust contains silicon dioxide
Carbon, hydrogen, nitrogen and oxygen are the most abundant elements by mass in the human body.
Carbon, hydrogen, nitrogen and oxygen are the most abundant elements by mass in the human body.
Yes, this makes sense. The human body contains greater amount of protein and amino acids.
The composition of protein is carbon, oxygen and nitrogen. The main composition of amino acid is carbon, oxygen, hydrogen and nitrogen.
Conclusion
Since, Earth’s crust contains the highest concentration of silicon dioxide and ocean contains the highest concentration of oxygen. Hence, oxygen and silicon are the two most abundant elements in the Earth’s crust and ocean.
Since, the human body is basically composed of carbon, oxygen, hydrogen and nitrogen. Therefore, these are the most abundant elements by mass in the human body
Want to see more full solutions like this?
Chapter 20 Solutions
Chemistry
- Q4barrow_forwardThe reaction of barium with sulfur is similar to that of magnesium with sulfur. Write the balanced chemical equation for the reaction of barium with sulfur. Include phase symbols.arrow_forwardWrite the chemical equation for the word equation below. Each blank should be a different substance and the reaction does not need to be balanced. Molybdenum(IV) chromate reacts with lithium telluride to make molybdenum(IV) telluride and lithium chromatearrow_forward
- What mass of Cu(IO3)2 can be formed from 0.650 g of CuSO4 · 5H2O? What mass of KIO3 is needed to convert the copper in 0.2750 g of CUSO4 - 5H2O to Cu(IO3)2?arrow_forwardIs the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?arrow_forwardOn the basis of what you observed between carbon dioxide and the glowing splint, explain how CO2 fire extinguishers work? You may have indicated that nitrogen is the most abundant gas in air. Why do you think you did not perform these investigations with pure nitrogen?arrow_forward
- Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to generate magnesium chloride (MgCl2), carbon dioxide gas (CO2), and liquid water (H2O). Write the balanced chemical equation for this reaction.arrow_forwardElemental chlorine exists in nature as diatomic molecules of Cl2. Could the process you used to describe the formation of NaCl account for this compound? Why or why not?arrow_forwardWrite balanced chemical equations for the following reactions. The decomposition of solid ammonium nitrate to produce gaseous dinitrogen oxide and water. The reaction of aqueous sodium phosphate and aqueous copper(II) sulfate to produce solid copper(II) phosphate and aqueous sodium sulfate.arrow_forward
- Give some examples of Silicates?arrow_forward21. Based on your understanding of the relationships between the structures and physical properties of elements and compounds, which of the substances (Table 1) is most likely a metallic element? Why? Explain your reasoning in at least two (2) sentences.arrow_forwardThe most common minerals found in soils are combinations of which four elements, which are also the most common elements. A K, Zn, Cu, I B Si, AI, O, Fe с) S, H, О, N D) с, Н, О, Narrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning