RoseMarie Gallagher and Paul Ingram Solutions for Chapter: Air and Water, Exercise 6: Checkup on Chapter 15

Explain how nitrogen oxides and carbon monoxide are converted to harmless gases in catalytic converter.

Copy and complete:

Air is a _____ of different gases. $99\%$of it consists of the two elements _____ and _____. Some of the remaining $1\%$ consist of two compounds, _____, and _____. The rest is made up of elements called the _____. These all belong to Group _____ of the Periodic Table. The gas we depend on most is _____. This gas combines with glucose in our body cells, releasing energy. The process is called _____.  This gas is also used in combination with _____, in torches for welding and cutting metal.

Air is a mixture of different gases. Which gas makes up about $78\%$ of the air?

Air is a mixture of different gases. Only one gas in the mixture will allow things to burn in it. Which gas is this?

Air is a mixture of different gases. Which noble gas is present in the greatest quantity, in the air?

Air is a mixture of different gases. Which gas containing sulfur is a major cause of air pollution?

Air is a mixture of different gases. Which gas containing sulfur is a major cause of air pollution? What harmful effect does this gas have?

 Air is a mixture of different gases. Name two other gases that contribute to air pollution, and say what harm they do.