Free Exam: chemistry test b
Number of Questions in Test: 20
Number of Questions in Preview: 5
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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 |