VHS CHEM L3 L4 S1 04 19 UNIT TEST S ALANIZ

Topics: Periodic table, Chemistry, Electronegativity Pages: 2 (298 words) Published: March 8, 2015
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SC1303A/304A: Chemistry 1Unit 41 Lesson 17: Unit Test

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Graded Assignment
Unit Test, Part 2
Answer the questions below. You may use the periodic table in the Chemistry: Problems and Solutions book for this test. When you have finished. submit this assignment to your teacher by the due date for full credit. (5 points)

1.

You have three elements. A. B. and C. with the following electronegativity

values:

A = 0.9
B =3.0
C

= 3.5

You react the elements to form the substances AB. AC. and BC. Answer the following questions: •

What type of substance is AB? What types of bonds are present? Explain your answer.



What type of substance is AC? What types of bonds are present? Explain your answer.



What type of substance is BC? What types of bonds are present? Explain your answer.



If any of the substances are ionic compounds. y!hich element is the cation and which is the anion? Explain your answer.
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© 2008 K12 lnc. All rights reserved,
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SCI303A/304A:

Graded Assignment

Answer:

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Chemistry 1Unit 41 Lesson 17: Unit Test

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Hydrogen cyanide (HeN) is a colorless gas. It is poisonous and smells like almonds. Draw a Lewis structure for this compound, explain why you drew the Lewis structure the way that you did, and predict the shape of the molecule.

Answer:

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