CHEMISTRY COMMUNITY

pJimenez3F

Sigma bonds are stronger due to the orbitals overlapping

pJimenez3F

Cis molecules are polar , trans molecules are nonpolar.

pJimenez3F

2 lone pairs and 3 bonded atoms

pJimenez3F

Lewis acid is an electron-pair acceptor and a Lewis base is an electron-pair donor.

pJimenez3F

weaker/longer the bond the stronger the acid

pJimenez3F

a single bond, is sigma, if it is a double bond, it is sigma and pi and if there is a triple bond then it is one sigma two pi.

pJimenez3F

yes it is

pJimenez3F

because it is an a lower energy level

pJimenez3F

yes correct

pJimenez3F

probably after lecture on Wednesday since not all of us have discussion week 9

pJimenez3F

2 lone pairs and 3 bonded atoms

pJimenez3F

no its doesn't at least for this course

pJimenez3F

they push the attached bonds away

pJimenez3F

the one is not needed

pJimenez3F

because we can't calculate the exact angle but we can estimate it based on it compared to something else. for example a line has a 180 degree angle and if there were to be an angle slightly smaller than a line it would just be <180

pJimenez3F

maybe Wednesday since we don't have class on Monday

pJimenez3F

I like to think of doing tests as doing hw in my room

pJimenez3F

nothing it won't be tested on

pJimenez3F

ye it is on Sunday of week 10

pJimenez3F

because the strength and length changes depending on whether it is a single double or triple bond

pJimenez3F

when pure working with energy levels. Absorption vs Emission

pJimenez3F

yeah he made class into a review session

pJimenez3F

Lavelle didn't cover this in class or homework, it won't be tested on

pJimenez3F

You usually always fill 4s before 3d except for Cr and Cu

pJimenez3F

the length of the bonds single bonds are longer since they are not as strong as double bonds

pJimenez3F

electronegativity decreases as radius increases

pJimenez3F

they basically represent the valence electrons and there is eight of them

pJimenez3F

the length of the bonds single bonds are longer since they are not as strong as double bonds

pJimenez3F

yes it is only between non metals

pJimenez3F

i would do 3 chemical bonds and 2 quantum from what we talked last week :)

pJimenez3F

there is never a time because you are trying to get a percentage

pJimenez3F

Hz, S-1, cycles per second they all mean the same thing

pJimenez3F

because 4s is more easily filled up

pJimenez3F

usually ionic bonds are stronger but there are some exceptions

pJimenez3F

What did the other elements say to Hydrogen?

HAHA WHAT A LONER

pJimenez3F

For now just combustion and probably common compound like sodium chloride for example

pJimenez3F

for this week at least I think thats enough until we use the other levels (if we do)

pJimenez3F

I dont think you need to worry about that yet

pJimenez3F

if you see the word combustion you should automatically know that element is reacting with oxygen gas O2 to produce carbon dioxide CO2 and water H2O

pJimenez3F

if you click your username you can see how many posts you have made and when

pJimenez3F

if youre doing everything right it should cancel out to the right units at the end :)

pJimenez3F

yes theoretical is your best case scenario but since you might spill your product or most commonly it might stick to the beaker your percentage yield will be the most accurate guess

pJimenez3F

i had the same thing happen to me !

pJimenez3F

no you cant work backwards because you need to calculate the ratio of the reactants in regards to each other to determine how much of each you would need to create the products it might be a 6 to 7 ratio of reactants for example and you would not know that if you worked backwards

pJimenez3F

there is 3 :)

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