General chemistry

To support your work, use your course and text readings and also use outside sources. As in all assignments, cite your sources in your work and provide references for the citations in APA format.

Start reviewing and responding to the postings of your classmates as early in the week as possible. Respond to at least two of your classmates. Participate in the discussion by asking a question, providing a statement of clarification, providing a point of view with a rationale, challenging an aspect of the discussion, or indicating a relationship between two or more lines of reasoning in the discussion. Complete your participation for this assignment by the end of the week.

Discussion Question 1

Theories, hypotheses, and laws form the life-blood of chemistry. Using the South University Online Library or the Internet, conduct research on scientific theories, hypotheses, and laws. Based on your research, answer the following:

• What do you think is the difference between a scientific theory, scientific hypothesis, and scientific law?
• Is there a sequential move from one to another; amongst scientific law, theory, and a hypothesis?
• Describe controlled conditions to find a scientific solution to a problem.

Discussion Question 2

Every measurement has a measurement uncertainty. Using the South University Online Library or the Internet, conduct research on measurement uncertainty. Based on your understanding, respond to the following:

• How can precise and accurate measurement be achieved in spite of the inherent measurement uncertainty?  (You will want to define accuracy and precision).
• What are the types of measurement errors? Explain at least three such errors.

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