CHEMISTRY COMMUNITY

Kimberly Santander3L

Work function is the energy needed to release an electron from a metal surface.

Kimberly Santander3L

I believe the electromagnetically difference is referring to whether a compound is ionic or covalent bond. If the electronegativity difference between two atoms is greater than 2 then the compound is ionic. If the electronegativity difference between two atoms is less than 1.5 then it's a covalent b...

Kimberly Santander3L

Since the problem provides you with the value of Kc, plug that value where Br2 would have gone in the equation to solve for Br2.

Kimberly Santander3L

I believe Lavelle prefers the structure in which the formal charge is equal to zero.

Kimberly Santander3L

If the lewis structure has a positive formal charge it's most likely going to be an acid. If the structure has a negative formal charge it is most likely going to be a base.

Kimberly Santander3L

When there is a sigma and a pi bond that could mean there is a double bound between one atom and another, not that they are overlapping.

Kimberly Santander3L

A carbon to hydrogen bond make up one sigma bond and since there are a total of 6 carbon to hydrogen bonds there are 6 sigma bonds there. Now the other 6 sigma bonds come from the carbon to carbon bonds. In benzene the structure is in a form of a hexagon that alternate single and double bonds. A car...

Kimberly Santander3L

As far as Chem 14A goes we do not need to know the configurations in the F-block. I believe Lavelle said to know the s-block, p-block, and the first row of the d-block in the periodic table

Kimberly Santander3L

Resonance structures that at formal charge=0, means that it's a stable bond. Typically we want to have a bond that is the most stable, not all resonance structures will have a formal charge =0 and it doesn't mean that structure is incorrect just less stable.

Kimberly Santander3L

A magnetic quantum number tells us the orbital an electron is occupying. It provides us with the amount of orbitals the electron has and the sub-shells.

Kimberly Santander3L

Transition metals are elements in group D, they are all metals that form cations with different oxidation numbers

Kimberly Santander3L

ionization energy is another name for the work function in the photoelectric effect

Kimberly Santander3L

The problem itself will usually tell you whether it wants the final answer in nanometers or in meters. Make sure to double check it before coming up with the final answer.

Kimberly Santander3L

Plank's constant is represented by the letter h. Frequency on the other hand is represented by a (v) like letter. Plank's constant (h) has a value of 6.626*10^-34 J*s. As opposed to frequency that does NOT have a constant value. For some problems you might be asked to find the value for frequency.

Kimberly Santander3L

I don't believe he would ask about what color our answer falls in the spectrum because I think he just cares about our calculations and the answer. You can also try asking Lavelle personally since this seems like a question only he could answer.

Kimberly Santander3L

From I remember Lavelle said that during tests we will be provided with constants so I wouldn't worry to much about whether we should round or use 4 sig figs.

CHEMISTRY COMMUNITY

Search found 16 matches

Re: Velocity of Ejected electron

Re: Strength of ionic v covalent bonds

Re: Calculating Equilibrium

Re: Lewis Structure of IO2F2 (-2) Problem 4.23 [ENDORSED]

Re: Lewis Structure

Re: Double sigma v. pi bonds

Re: Benzene Hybridization [ENDORSED]

Re: Electron config of elements in 5d and 6d

Re: Do all resonance structures need to be FC=0?

Re: Atomic orbitals [ENDORSED]

Re: Transition Metals

Re: Ionization in energy levels

Re: Wavelength Units

Re: h variable

Re: Wavelengths and Frequency of Electromagnetic Radiation [ENDORSED]

Re: Planck Constant [ENDORSED]