Search found 18 matches

by 204750609
Wed Jun 06, 2018 11:24 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015430

Re: Post All Chemistry Jokes Here

As finals week approaches:
What is the chemical formula of coffee?
CoFe2
by 204750609
Wed Jun 06, 2018 11:22 pm
Forum: Lewis Acids & Bases
Topic: Ionic Equations and net ionic equation
Replies: 3
Views: 119

Re: Ionic Equations and net ionic equation

You are right the complete ionic equation has the ions written out separately. The net ionic equation removes the ions that are the same on the reactants and products side.
by 204750609
Wed Jun 06, 2018 11:15 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Chelating complex
Replies: 7
Views: 187

Re: Chelating complex

A chelating complex is a compound that has a central atom attached to a ligand. It is a cyclic structure.
by 204750609
Wed Jun 06, 2018 8:17 pm
Forum: Ionic & Covalent Bonds
Topic: Help on 3.39
Replies: 2
Views: 130

Re: Help on 3.39

I had trouble with a similar type of lewis structure. To begin with ammonium has a positive charge and chlorine has a negative charge. That indicates that there is no bond between them. So you can go ahead and draw the lewis structures for each without a bond, and remember since its an ionic bond th...
by 204750609
Tue Jun 05, 2018 11:17 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015430

Re: Post All Chemistry Jokes Here

A classified add read: "Do you have mole problems? If so, call Avogadro at 602-1023."
by 204750609
Tue Jun 05, 2018 11:14 pm
Forum: Lewis Acids & Bases
Topic: Conjugate Acids and Bases
Replies: 4
Views: 149

Re: Conjugate Acids and Bases

A conjugate acid is a base with a hydrogen ion added to it. A conjugate base is formed by the removal of a proton from an acid.
by 204750609
Tue Jun 05, 2018 10:54 pm
Forum: Lewis Acids & Bases
Topic: Protons are lewis acids?
Replies: 5
Views: 169

Re: Protons are lewis acids?

Lewis acids are H+ protons because they are the ones who are able to receive an electron pair. There are some metal complexes that are also acids, but then again they become acids after dissociation.
by 204750609
Thu May 31, 2018 10:20 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bent vs. Angular
Replies: 11
Views: 357

Re: Bent vs. Angular

Yes they are interchangeable.
by 204750609
Sun May 27, 2018 11:47 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015430

Re: Post All Chemistry Jokes Here

A photon checks into a hotel and is asked if he needs any help with his luggage.
He says, "No, I'm traveling light."
by 204750609
Sun May 27, 2018 11:10 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: cis and trans
Replies: 7
Views: 218

Re: cis and trans

A cis isomer is polar and a trans isomer is non polar.
by 204750609
Mon May 21, 2018 12:12 am
Forum: Lewis Structures
Topic: Lewis Structure
Replies: 2
Views: 103

Re: Lewis Structure

If I understood this post correctly, it is possible for a lewis structure to be linear
by 204750609
Mon May 21, 2018 12:08 am
Forum: Lewis Structures
Topic: How do I start a Lewis structure?
Replies: 3
Views: 151

Re: How do I start a Lewis structure?

You should first calculate the total number of valence electrons then determine the least electronegative atom and make that your central atom. Hydrogen is never a central atom.
by 204750609
Mon May 21, 2018 12:02 am
Forum: Electronegativity
Topic: Calculating electronegativity
Replies: 10
Views: 427

Re: Calculating electronegativity

Electronegativity increases across a period and decreases down a column
by 204750609
Sun May 13, 2018 11:07 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015430

Re: Post All Chemistry Jokes Here

What did the thermometer say to the graduated cylinder?


At least I have a degree!
by 204750609
Sun May 13, 2018 11:03 pm
Forum: Lewis Structures
Topic: resonance
Replies: 6
Views: 209

Re: resonance

You can think of resonance as the other possible ways that the electrons are in a compound. They can help you see the most correct drawing of a structure.
by 204750609
Sun May 13, 2018 10:54 pm
Forum: Lewis Structures
Topic: KCl Lewis formula
Replies: 6
Views: 533

Re: KCl Lewis formula

A way in which you can evaluate which gives or receives is when you evaluate the element on its own, in this case Cl has a higher ionization energy than K, so it is more likely/easier for Cl to receive an electron to satisfy the octet rule than K
by 204750609
Sun May 06, 2018 11:59 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Polarity [ENDORSED]
Replies: 4
Views: 191

Re: Polarity [ENDORSED]

no and polarity i think is more closely related on the topics of solubility
by 204750609
Sun May 06, 2018 11:54 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron config in the "d" sublevel
Replies: 5
Views: 181

Re: electron config in the "d" sublevel

I think you fill in the 4s level before the 3d level because the 3d level has a slightly higher energy than the 4s sub level.
https://www.chemguide.co.uk/atoms/prope ... oblem.html

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