1. Intro to General Chemistry

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?

Which of the following best describes how chemical changes differ from physical changes?

Which of the following best describes the difference between evaporation and transpiration?

Which of the following actions would most effectively increase the effectiveness of evaporative cooling?

Which of the following best describes condensation?

Which of the following lists includes five common signs that a chemical change has occurred?

Which of the following phase changes represents sublimation?

Which of the following best describes what happens during a chemical change?

Which type of change occurs when a piece of bread is toasted?

Which of the following is a chemical change caused by light from a light bulb?

Which of the following is a chemical change that can occur when a liquid is heated?