1. Intro to General Chemistry

How are individual atoms of oxygen (O) formed in the stratosphere?

Which type of chemicals commonly react with both water and oxygen when they enter water systems, often leading to corrosion or pollution?

Which of the following describes a chemical property of oxygen?

Which of the following statements about chemical formulas is false?

Which of the following is formed when cast iron and wrought iron are mixed together?

Which of the following statements regarding calcium is false?

Which type of chemical reaction occurs when a compound is separated into its constituent elements?

Which of the following best describes a chemical compound?

Which chemical property could Zoe use to distinguish sodium from iron?

Which of the following chemical properties best explains why sodium reacts vigorously with water?

Which type of chemical property is indicated by a skull and crossbones pictogram on a chemical label?

Which of the following elements is most likely to form basic compounds?

Which route of entry allows a chemical to enter the body through the airways?

Which gas was used to fill the Hindenburg airship?

Which of the following is the main active component found in bleach and many other household cleaners?