What kinds of attractive forces exist between particles in covalent-network crystals? Please choose all correct answers! Covalent bonds Atomic bonds O London Dispersion forces Metallic bonds lonic bonds

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Q: b) How can you determine chloride content in a waste water sample?

A: Chloride content in waste water can be determined by Mohr's method.

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.