Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 18 - Reaction Rates and Equilibrium - 18 Assessment: 102

Answer

Fire needs oxygen in order to burn (combustion reaction requires oxygen). You fan the fire in order to increase the amount of oxygen hitting the fire. Dust explosions can occur where any dispersed powdered combustible material is present in high enough concentrations in the atmosphere or other oxidizing gaseous medium such as oxygen.

Work Step by Step

Fire needs oxygen in order to burn (combustion reaction requires oxygen). You fan the fire in order to increase the amount of oxygen hitting the fire. Dust explosions can occur where any dispersed powdered combustible material is present in high enough concentrations in the atmosphere or other oxidizing gaseous medium such as oxygen.
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