1. Intro to General Chemistry

What happens to the water surface when a milk drop is dropped into the water?

Which of the following best describes what happens during evaporation?

When soda fizzes after being opened, is this an example of a chemical change?

A student mixes vinegar (acetic acid) with baking soda (sodium bicarbonate), observes bubbling, then heats the resulting solution until a white solid forms. How many chemical changes occurred in this scenario?

Which of the following processes is the opposite of evaporation?

Which of the following is an example of condensation?

When water changes from a solid to a liquid or from a liquid to a gas, what happens to its chemical structure?

Which of the following is a chemical change involved in the formation of soils?

Which of the following is a reliable indicator that a chemical reaction has occurred?

Molten steel, melted steel, liquid steel, and solid steel are different because of which property?

Which of the following best describes a physical change?

Which of the following is a sign of a chemical change?

Which of the following is a sign that a chemical reaction might have occurred?