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Assignment 2: Bonding and Mixing Materials, Assignments of Chemistry

Information about various assignments related to the topics of bonding and mixing materials in the context of chemistry and materials science. The assignments cover topics such as the application of the radius ratio rule, hume-rothery rules, and the formation of new phases or chemical compounds when mixing metals. Additionally, there is a question about the miscibility of two polymers in the case of gortex.

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Pre 2010

Uploaded on 07/23/2009

koofers-user-ymg
koofers-user-ymg 🇺🇸

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Download Assignment 2: Bonding and Mixing Materials and more Assignments Chemistry in PDF only on Docsity! May 21, 2001 CHE/MAE 294 S01, Assignment 2 due Wednesday, May 23 Bonding 1. What structures are predicted from the radius ratio rule for MgF2, CaCl, and Na2O? Mixing Materials 2. Each of the following metals do not mix. Which Hume-Rothery rule is violated? a) Al-Cu, b) Al-Mg, and c) Cu-Zn. 3. Speculate on what might happen in mixing the following metals. Will the system be miscible, form new phases, or form chemical compounds? a) Au-Ag, b) Pt-Al, and c) Ni-Fe. 4. Calculate the ratio of cation sizes in the following ceramics: a) NiO + MgO (they mix well) and b) Al2O3 + MgO (they do not mix well). 5. GORTEX is a blend of polypropylene and nylon. Are these two polymers expected to be completely miscible? Why or why not?
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