Unit 2 Study Guide: Physical and Chemical Changes, States of Matter, Ions, Ionic and Molecular Compounds

Which subatomic particle is primarily responsible for the chemical properties of an element, and where is it located in the atom?

Which of the following best describes the process of sublimation?

A sample of ice at 0°C is melted using 200 grams of ice. How much heat (in calories) is required? (Heat of fusion for water is $79.7 \ \frac{cal}{g}$)