# Search results

1. ### General Solutions to a Linear System

According to this, http://upload.wikimedia.org/math/5/8/2/582b41cd88284564c46e711cbbca55fa.png http://en.wikipedia.org/wiki/System_of_linear_equations#Homogeneous_systems A general solution to some linear system is a particular solution (P) + a homogeneous solution (H) My question: is...
2. ### SP Carbon Orbitals

When the hydrogens/protons are removed, leaving C-, can someone please tell me what and why the SP orbitals of these two carbons are? http://img30.imageshack.us/img30/5333/40529044.jpg [Broken] Thanks.
3. ### What's the sp orbital of this carbon?

The on on the left w/ the red arrow pointing to it: http://img198.imageshack.us/img198/5062/92513846.jpg [Broken]
4. ### Valid Resonance Structure?

Is this valid: http://img197.imageshack.us/i/imagecct.jpg/
5. ### Understanding Bonding

When Carbon double bonds to another carbon, does one of each's electrons move like this? http://img27.imageshack.us/img27/4566/bondb.jpg [Broken]
6. ### Octet Rule

Is this how you tell when to form double bonds when drawing lewis structures, such as with CO2?
7. ### Understanding Lone Pairs & Orbitals

So, trying to understand conceptually why Carbon can only have 4 bonds maximum, regardless of its formal change in a structure. My book says it's because it only has 4 orbitals, but I'm not quite sure why this is, and was wondering if someone could explain. My second question is regarding...
8. ### Practicing Structural Drawings

Did I draw this correctly? http://img151.imageshack.us/img151/7946/correctj.jpg [Broken] Thank you
9. ### A(n+1) = An + 1/(5^n) sequence

So, couple sequence questions! Converge or Diverge? 1. A(n+1) = An + 1/(5^n) (recursive sequence) That should read a sub n plus one equals a sub n plus one over 5 to the n I believe it converges, but would like to be sure. 2. sigma from 1 to infinity of: (1+5/n)^n...
10. ### Thermochemistry question

I'm given: mass metal temp metal mass cool water temp water final temp (after insertion of metal) (note: this is in a styrofoam cup calorimeter) I need to find the amount of heat lost by the metal, qmetal. The only hint is: qmetal = - (qwater + qcalorimeter). Desperately tried...
11. ### Heat of Combustion

What's the formula for calculating this, given: grams, heat capacity of substance, and temperature change? How about heat combustion per kJ/Mol? Thanks