Ontario Grade 9 Science Class Practice Exam

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Master Grade 9 Science with our comprehensive practice exam. Test your knowledge, identify weak areas, and boost your confidence for academic success.

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What does the electrostatic series arrange?

Materials based on their electrical conductivity
Materials based on their tendency to gain electrons
Elements based on their atomic number
Compounds based on their chemical reactivity

The correct answer is: Materials based on their tendency to gain electrons

This answer is incorrect because the electrostatic series does not arrange materials based on their tendency to gain electrons. Instead, it arranges materials based on their ability to attract or repel electrons in an electrostatic interaction. The other options are also incorrect as the electrostatic series does not arrange materials based on electrical conductivity (choice A), atomic number (choice C), or chemical reactivity (choice D). It is important to note that the electrostatic series is often used in the study of electrochemistry and helps predict the outcome of reactions between different materials.