January 2026
Intermediate
368 pages
12h 59m
English
Content preview from Pearson IIT Foundation Class 9 Chemistry, 2026
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CHAPTER 7
Water
Key Ideas 
After completing this chapter, you should be able to:
✦ understand the importance and different sources of water.
✦ know the causes of hardness of water, types of hardness, and various processes to remove the hardness.
✦ describe water pollution, its causes, effects, and ways for preventing the water pollution and maintaining the water cycle.
✦ study the classification of solutions based on the physical states of solute and solvent and know about solubility, factors affecting solubility and importance of solubility ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.