Homework Statement
Find roots of the EQN: r^3-r^2+1=0
Homework Equations
none
The Attempt at a Solution
r^2(r-1)+1=0
from there i solved, r^2=-1 and r-1=-1 to find the following roots:
r=+i,r=-i, r=0
Is my method correct? Also, I don't think that synthetic division would work here since my...
I just looked up the electronegativity difference (Pauling scale) for Carbon and oxygen=0.9
So... this would be a polar covalent bond.
However, basic lewis structure rules say that the most electronegative atom should carry the negative formal charge. Right?
Homework Statement
Find the lewis structure for [CH3OH2]+
Homework Equations
n/a
The Attempt at a Solution
I found the lewis structure to have a positive formal charge on the oxygen. I'm not sure why the oxygen would have the + f.c. since it is much more electronegative than fairly neutral...
Homework Statement
First question on PDF:
http://ars-chemia.net/Classes/102/Problem_Sets/Practice%20Exam%20for%20Exam%201%20Key.pdf
Homework Equations
I used the initial rates method:
Rate2/Rate1=k2*[A]^m/k1*[A]^m
The Attempt at a Solution
When I solve these types of problems with the...
Homework Statement
"You might wonder how six protons and six neutrons, each having a mass larger than 1 u, can be combined with six electrons to form a carbon-12 atom having a mass of exactly 12 u. The bound system of carbon-12 has a lower rest energy than that of six separate protons and six...
Homework Statement
You are standing approximately 2 m away from a mirror. The mirror has water spots on its surface. True or False: It is possible for you to see the water spots and your image both in focus at the same time.
Homework Equations
p=object distance
q=image distance
The Attempt...
Hi! I'm new to the forums, so I apologize in advance if I'm posting my question in the wrong section. I'm studying thermodynamics right now, and I came across this sentence from my book:
Homework Statement
"When energy is added to a system and there is no change in the kinetic or potential...