CHEMISTRY COMMUNITY

Odalis Section 1E

Well you are given this equation at 300 K and as you can see the equation you're given is two equations on the chart 11.2 combined. You can say that they are multiplied into one equation so you would look at both these equations on the chart at 300 and multiply their Kc.

Odalis Section 1E

I want to add that you also don't use the number that is less than the initial concentration because once again you might be getting a negative concentration.

Odalis Section 1E

Can someone please give me a brief explanation of Le Chatelier's principle, I don't understand how increasing or decreasing the pressure/concentration of one molecule will affect the others.

Odalis Section 1E

When doing an ICE chart and adding or subtracting the X's, do you always subtract the reactant and add to the product?

Odalis Section 1E

Can someone please explain the difference between covalent and ionic bonds?

Odalis Section 1E

Well in class he emphasized that the practice problems are what are going to be on the test.

Odalis Section 1E

I have a question on what molecular shapes we are supposed to know because in the course reader we are given 5 different ones but the textbook on pg.109, there are 12 different kinds. Does anyone know which to focus on more?

Odalis Section 1E

For Chapter 3 on question 25 we are told to write the chemical formula for the given compounds, are we supposed to know how to do this. Like for example we are given magnesium arsenide, and are told to write it out as Mgsub3 ASsub2.

Odalis Section 1E

Another small thing to remember about the 2nd ionization energy is that it will always be greater than the 1st for the reasons explained above.

Odalis Section 1E

I believe that the second structure is more stable because you want the least amount of negatives in the formal charge. For example in the first structure you have 4 (-1) formal charges and in the second one you only have 2. If I am wrong please correct me.

Odalis Section 1E

I am also confused on how to determine polar bonds, can someone also please explain dipoles.

Odalis Section 1E

I would make another chemistry joke but all the good ones ARGON.

Odalis Section 1E

Can someone please explain Schrodingers Equation please?

Odalis Section 1E

I realized that I felt so much pressure that I wasn't able to read the questions and interpret them the way I might have understood it. My friend had explained the question to me after the test and I had realized it was easier than I thought.

Odalis Section 1E

Can someone please reexplain the exception of 4s and 3d

Odalis Section 1E

How do we know if something has measurable wavelike properties like the example on page 52 of the course reader ?

Odalis Section 1E

In the course reader page 48, I understand the worked out problem, but I do not get why the 4.09 x 10^(-19) J goes from negative to positive towards the end.

Odalis Section 1E

In class Dr. Lavelle mentioned 10^(-12)m=pm, 10^(-9)m=nm, and 10^(-3)m=mm. I am confused on what units these are or what they mean exactly. Can someone explain them to me please.

Odalis Section 1E

In the textbook there are problems that ask for you to write the equation of a certain reaction, are we supposed to know certain chem equations for the tests or exams?

Odalis Section 1E

When I solve problems from the textbook, I am usually off by a decimal, will I get deducted points if that happens in a test?

CHEMISTRY COMMUNITY

Search found 20 matches

Re: Question 11.39

Re: Quadratic formula

Le Chatelier's Principle

Chemical Equilibrium [ENDORSED]

Covalent and Ionic Bonds

Re: Ch.17

Molecular Shapes

Chapter 3

Re: 1st and 2nd ionization energy? [ENDORSED]

Re: Quick Question about SO4

Re: Polar vs. nonpolar

Re: Post All Chemistry Jokes Here

Schrodinger

Re: Thoughts after Test 1?

Electron Configuration

De Broglie

Quantum Question

Class Quetsion

Textbook Vs the Exams

Test Questions