Define the terms element and compound

Assignment Help Other Subject
Reference no: EM13794991

Part 1:

1. Define the terms element and compound and name the smallest unit of each.

2. Name the three forms, or states, of matter and explain how the shape and volume of matter are expressed in each state.

3. What physical change occurs when a substance undergoes the following changes of state: (a) from liquid to solid, and (b) from liquid to gas?

4. Define sublimation. What happens to the attractive forces between molecules of a substance that undergo sublimation?

5. What is a phase and how can two different phases be distinguished from one another?

6. What is the fundamental difference between organic and inorganic substances?

7. Describe the difference between a quantitative and a qualitative determination.

8. What basic tool is most often used to characterize and identify organic materials? Why is this tool chosen for that purpose?

9. What is the greatest drawback to spectrophotometry? What technique is often employed when spectrophotometry cannot be used?

10. Briefly describe the basic chromatographic process. Be sure to explain how motion is important to the process.

11. What three chromatographic processes are most applicable for solving analytical problems typically encountered in the crime laboratory? What is the main advantage of each?

12. What is electrophoresis and what is it most widely used for?

13. What is color? What determines the color of an opaque object?

14. What two models do scientists use to explain the nature of light? Under what conditions does each model best describe the behavior of light?

15. What is Beer's law and what analytical technique is based on it?

Part 2:

1. What is a trace element and why are trace elements important in analyzing physical evidence?

2. Explain how the analysis of trace elements was important to the investigation of the assassination of President John F. Kennedy.

3. What two characteristics of elements form the basis of the analytical techniques of emission spectroscopy and atomic absorption spectrophotometry?

4. Describe the difference between a continuous spectrum and a line spectrum. Which is most helpful in identifying a particular element and why?

5. How does the quantity of light absorbed during atomic absorption spectrophotometry relate to the concentration of the absorbing element? What is the significance of this relationship for the forensic scientist?

Reference no: EM13794991

Questions Cloud

The subfields of anthropology related issues : Distinguish between members of genus Australopithecus and Paranthropus in terms of time, location, and physical features.
How does the textbook define physical evidence : 1. How does the textbook define physical evidence? 2. What is the first critical step in crime-scene investigation? Why is this step so important?
Define business case analysis : Define business case analysis
Physical property and chemical property : 1. Define the terms physical property and chemical property. 2. Why is the metric system of measurement easier to use than the "English system"? Which system is used in the United States?
Define the terms element and compound : 1. Define the terms element and compound and name the smallest unit of each.
Write responce paper about the article the chronicle review : Write a responce paper about the article The Chronicle Review By Timothy Messer-Kruse.
What is the primary duty of a forensic toxicologist : 1. What is the primary duty of a forensic toxicologist? 2. What are the requirements of a suitable test for alcohol intoxication?
What is crime-scene reconstruction : 1. What is crime-scene reconstruction? 2. Which of the following is of paramount importance in the interpretation of bloodstain patterns?
Problems based on latitudes in the southern hemisphere : What layer of the atmosphere must the aircraft be traveling through?

Reviews

Write a Review

Other Subject Questions & Answers

  Cross-cultural opportunities and conflicts in canada

Short Paper on Cross-cultural Opportunities and Conflicts in Canada.

  Sociology theory questions

Sociology are very fundamental in nature. Role strain and role constraint speak about the duties and responsibilities of the roles of people in society or in a group. A short theory about Darwin and Moths is also answered.

  A book review on unfaithful angels

This review will help the reader understand the social work profession through different concepts giving the glimpse of why the social work profession might have drifted away from its original purpose of serving the poor.

  Disorder paper: schizophrenia

Schizophrenia does not really have just one single cause. It is a possibility that this disorder could be inherited but not all doctors are sure.

  Individual assignment: two models handout and rubric

Individual Assignment : Two Models Handout and Rubric,    This paper will allow you to understand and evaluate two vastly different organizational models and to effectively communicate their differences.

  Developing strategic intent for toyota

The following report includes the description about the organization, its strategies, industry analysis in which it operates and its position in the industry.

  Gasoline powered passenger vehicles

In this study, we examine how gasoline price volatility and income of the consumers impacts consumer's demand for gasoline.

  An aspect of poverty in canada

Economics thesis undergrad 4th year paper to write. it should be about 22 pages in length, literature review, economic analysis and then data or cost benefit analysis.

  Ngn customer satisfaction qos indicator for 3g services

The paper aims to highlight the global trends in countries and regions where 3G has already been introduced and propose an implementation plan to the telecom operators of developing countries.

  Prepare a power point presentation

Prepare the power point presentation for the case: Santa Fe Independent School District

  Information literacy is important in this environment

Information literacy is critically important in this contemporary environment

  Associative property of multiplication

Write a definition for associative property of multiplication.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd