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(a)
Interpretation: If the elements silicon is hazardous, rare or neither should be identified.
Concept Introduction:
About 90% of earth is made up of 4 elements namely, iron, oxygen, magnesium and silicon. The other elements present in more than 1% are nickel, calcium, aluminum and sulfur. Elements such as sodium, potassium, chromium, cobalt, phosphorus, manganese and titanium are present in 0.1 to 1% range thus, they are rare elements. Some elements are considered to be hazardous as they affect the environment. They can be present in any components of the environment: atmosphere, land and water. They can be highly toxic and hazardous to humans.
(b)
Interpretation: If the elements neodymium is hazardous, rare or neither should be identified.
Concept Introduction:
About 90% of earth is made up of 4 elements namely, iron, oxygen, magnesium and silicon. The other elements present in more than 1% are nickel, calcium, aluminum and sulfur. Elements such as sodium, potassium, chromium, cobalt, phosphorus, manganese and titanium are present in 0.1 to 1% range thus, they are rare elements. Some elements are considered to be hazardous as they affect the environment. They can be present in any components of the environment: atmosphere, land and water. They can be highly toxic and hazardous to humans.
(c)
Interpretation: If the elements mercury is hazardous, rare or neither should be identified.
Concept Introduction:
About 90% of earth is made up of 4 elements namely, iron, oxygen, magnesium and silicon. The other elements present in more than 1% are nickel, calcium, aluminum and sulfur. Elements such as sodium, potassium, chromium, cobalt, phosphorus, manganese and titanium are present in 0.1 to 1% range thus, they are rare elements. Some elements are considered to be hazardous as they affect the environment. They can be present in any components of the environment: atmosphere, land and water. They can be highly toxic and hazardous to humans.
(d)
Interpretation: If the elements oxygen is hazardous, rare or neither should be identified.
Concept Introduction:
About 90% of earth is made up of 4 elements namely, iron, oxygen, magnesium and silicon. The other elements present in more than 1% are nickel, calcium, aluminum and sulfur. Elements such as sodium, potassium, chromium, cobalt, phosphorus, manganese and titanium are present in 0.1 to 1% range thus, they are rare elements. Some elements are considered to be hazardous as they affect the environment. They can be present in any components of the environment: atmosphere, land and water. They can be highly toxic and hazardous to humans.
(e)
Interpretation: If the elements lead is hazardous, rare or neither should be identified.
Concept Introduction:
About 90% of earth is made up of 4 elements namely, iron, oxygen, magnesium and silicon. The other elements present in more than 1% are nickel, calcium, aluminum and sulfur. Elements such as sodium, potassium, chromium, cobalt, phosphorus, manganese and titanium are present in 0.1 to 1% range thus, they are rare elements. Some elements are considered to be hazardous as they affect the environment. They can be present in any components of the environment: atmosphere, land and water. They can be highly toxic and hazardous to humans.
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EBK CHEMISTRY FOR CHANGING TIMES
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
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