A laboratory is suspected to be contaminated with radiation from a radioactive material. Which of the following detection instruments can be best used to detect this radiation?
An X-ray film, because it can detect the low frequency X-rays.
An X-ray film, because it can detect the low energy infrared radiation.
A Geiger counter, because it can detect the high energy gamma rays.
A Geiger counter, because it can detect the highly penetrating ultraviolet radiation.
Answers: 3
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Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous
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According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.
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A laboratory is suspected to be contaminated with radiation from a radioactive material. Which of th...
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