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Free Exam: chemistry test b

Number of Questions in Test: 20
Number of Questions in Preview: 5
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Question 1

The group of atoms shown below is held together by covalent bonds. The carbon (C) and hydrogen (H) atoms shown here combine to form benzene (C6H6), which is a(n) ____.

Type: Multiple choice
Points: 1
Randomize answers: No

Question 2

Which atoms combine to form the molecule CH3CH2CH2Br?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 3

Which of the following properties of carbon 14 makes it a good tool for estimating the age of organisms which were alive sometime within the past 20,000 years?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 4

When radioactive elements decay, they produce different types of radiation. Which of these is not a form of radiation emitted by radioactive elements?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 5

In the core of the sun, hydrogen (H) atoms combine to produce helium (He) atoms and tremendous amounts of energy. A nuclear reaction such as this, in which two or more nuclei combine to form a larger nucleus is known as a(n) ____ reaction.

Type: Multiple choice
Points: 1
Randomize answers: No

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