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General Chemistry 1 - D843 WGU Exam Questions with 100% Verified Answers. Latest Update

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General Chemistry 1 - D843 WGU Exam Questions with 100% Verified Answers. Latest Update

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General Chemistry 1 - D843 WGU Exam
Questions with 100% Verified Answers.
Latest Update
Question 1
How did J.J. Thomson contribute to atomic theory?
Correct Answer
He introduced subatomic particles and challenged the idea of atom invisibility.



Question 2
Which example demonstrates a buffer reaction?

Correct Answer
A solution of acetic acid and sodium acetate stabilizes pH by balancing ions.



Question 3
The pOH of a substance is 8.05. What are the correct characteristics of this substance?
Correct Answer
pH = 5.95; acid




Page 1 of 25

,Question 4
What is the geometry of the molecule BCl3?




Correct Answer
Trigonal planar



Question 5
Which tool shows visible condensation trails for alpha and beta particles?




Correct Answer
Cloud chamber




Page 2 of 25

, Question 6
Which contribution did Niels Bohr make to the understanding of atoms and
elements?




Correct Answer
He aided in the understanding of periodic trends based on specific energy levels for
electrons.



Question 7
Which effect does beta decay have on an element?




Correct Answer
The mass number does not change.




Page 3 of 25

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