What to do: Construct the phase diagram for a substance on your graphing paper based on the following data: (It need not be scaled) T (OK) 55 K Р (atm.) 0.50 atm. Triple point Normal melting point Normal boiling point Critical point *Label: S (solid), L (liquid}, G (gas) *Curves/Lines of equilibrium between solid-gas, liquid-gas, and solid-liquid. 68 K 1 atm. 1 atm. 50 atm. 183 K 218 K

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Q: 7. M Determine el nombre IUPAC HO OH OH

A:

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Q: D. Molecular formula: Empirical Formula C (black); O (red); H (white)

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A:

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Q: Cl2 FeCl3 H₂ (excess Ni

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Q: (9)What is the molar mass of mercurous nitrite?

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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.