The Arrhenius definition of a base is:

How many grams of chlorine gas are needed to make 117 grams of solid sodium chloride? Given the reaction: 2Na(s) + Cl2(g) -> 2NaCl(s)

What is the correct Lewis structure for N2 ?

Download the exam here: PHYS_103_summer_2025_Exam 1.pdf Download the equation sheet here: Equation Sheet You have 60 minutes to complete the exam, please time yourself accordingly. Once you finish the exam, up to 15 minutes can be used to scan and submit your work to the corresponding D2L Assignment.  The exam will consist of 4 open-ended problems, making a total of 110 pts. A calculator is permitted. You are not allowed to access any resources other than the equation sheet during the test. Show all your work to receive full credit on problems. In some cases, this includes drawing a diagram of the problem. Email tsaadi@arizona.edu or leebe@arizona.edu if you have questions at any time.

Go to the GradeScope link in the D2L folder under Content->Exam 1 to submit your PDF solutions.  I have uploaded my solution to the submission folder indicated above.

A number is randomly selected from the set of numbers {1, 2, 3, 4, 5, 6, 7, …, 19, 20}. Find the probability that it is not a prime number. Leave your answer as a fraction.

A toxicity of [answer1] could result in orange skin.

[Answer1] can develop in alcoholics, due to a [answer2] deficiency.

During prolonged fasting, the body will [answer1].

[Answer1] and [answer2] stimulate osteoclasts to dissolve bone.