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Please view attachment  1. Top of Form Outside sources are not required; however, when directly quoted or paraphrased works of others are used in a

Please view attachment 

1.

Top of Form

Outside sources are not required; however, when directly quoted or paraphrased works of others are used in any manner, the writer is obligated to properly cite the source of the original narrative.

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2.

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Question 1

20 Points

There are two isotopes of chlorine (35Cl and 37Cl). For each of the two isotopes, list the number of protons, neutrons, and electrons as well as the atomic number and atomic mass. To be awarded credit, you must explain where each number is derived for both isotopes.

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3.

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Question 2

20 Points

What is the empirical formula of a compound that is 77.9% calcium, 20.8% oxygen, and 1.3% hydrogen by mass? To earn credit, you must not only have the correct answer but show your step-by-step to support of your final answer.

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4.

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Question 3

20 Points

Name the steps of the scientific method and apply them to an everyday problem you might solve using the method. Be detailed with your answer and explain each step of your problem.

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5.

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Question 4

20 Points

What volume (mL) of 1.50 × 10-1 M hydrochloric acid can be neutralized with 105 mL of 0.500 M sodium hydroxide? Include the balanced equation with your work. To earn credit, you must not only have the correct answer but show your step-by-step work to support your final answer.

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6.

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Question 5

20 Points

Which of the items below would be considered the densest? (To be awarded credit, you must not only have the correct answer but show your step-by-step work for calculating density of each, in the units of g/mL, to support your final answer. This includes any work required to convert units.)

a. A piece of wood with a volume of 0.5 L and a mass of 10.5 kg

b. A ball with a volume of 110 mL and a mass of 520 mg

c. A tire with a volume of 1.10 L and a mass of 2.22 x 104 kg

d. A wire with a volume of 3.91 x 10-7 L and a mass of 7.93 x 10-2 mg

e. A block of metal with a volume of 1050 mL and a mass of 1.29 x 103 g

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