# Posts by MX

Total # Posts: 7

**Chemistry**

Name the straight-chain alkane that is a constitutional isomer of 2,4-dimethylhexane. Pls help

**Chemistry**

thnks @ Drew :)

**Chemistry**

can u help me with the formula of Cu bsc me temperature is 1056 plssssssssssssssssss help

**Chemistry**

Determine for solid manganese (Mn) the following: What is the atomic density (atoms/m) along the [110] direction of the Mn crystal? What are the number of nearest neighbors around an atom in the Mn crystal? Calculate the interplanar spacing (m) between {220} planes in the Mn ...

**Chemistry**

can u help me with the formula of Cu bsc me temperature is 1056 plssssssssssssssssss help

**Chemistry**

3. Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1050K. ************************************************************************ nv N+ Ae*ΔHv kT(A + 1) Nv/cm3+Ncm3e*&#...

**Math**

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children?

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