Search found 28 matches
- Sun Jul 28, 2019 11:46 pm
- Forum: *Liquid Structure (Viscosity, Surface Tension, Liquid Crystals, Ionic Liquids)
- Topic: Shape and Boiling Point
- Replies: 12
- Views: 3159
Re: Shape and Boiling Point
shapes resulting in strong force will result in them being harder to break
- Sun Jul 28, 2019 11:44 pm
- Forum: Properties & Structures of Inorganic & Organic Bases
- Topic: Nitrogen as a Base
- Replies: 6
- Views: 1305
Re: Nitrogen as a Base
nitrogen can donate its lone pair
- Sun Jul 28, 2019 11:43 pm
- Forum: Naming
- Topic: ethylenediamine [ENDORSED]
- Replies: 4
- Views: 707
Re: ethylenediamine [ENDORSED]
yes that is right
- Sun Jul 28, 2019 11:43 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: H-bonds [ENDORSED]
- Replies: 5
- Views: 889
Re: H-bonds [ENDORSED]
They form with the most electronegative elements, and it's with hydrogen, which is low electronegativity
- Sun Jul 28, 2019 11:29 pm
- Forum: Ionic & Covalent Bonds
- Topic: Back and Fourth Arrows
- Replies: 6
- Views: 775
Re: Back and Fourth Arrows
When there are two arrows, the reaction is reversible
- Sun Jul 28, 2019 11:23 pm
- Forum: Lewis Acids & Bases
- Topic: Acids & Bases
- Replies: 4
- Views: 634
Re: Acids & Bases
a lewis acid is a electron acceptor, and a lewis base is an electron donor
- Sun Jul 21, 2019 10:42 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Which do you prioritize first
- Replies: 10
- Views: 1213
Re: Which do you prioritize first
You prioritize octet rule before formal charge
- Sun Jul 21, 2019 10:39 pm
- Forum: Coordinate Covalent Bonds
- Topic: Coordinate covalent bond?
- Replies: 12
- Views: 1396
Re: Coordinate covalent bond?
it's when an atom gives both electrons to make the bond. The tow electrons in the bond are from the same atom
- Sun Jul 21, 2019 10:39 pm
- Forum: Octet Exceptions
- Topic: Lewis Acids and Bases
- Replies: 10
- Views: 1373
Re: Lewis Acids and Bases
lewis acids are electron acceptors while lewis bases are electron donors
- Sun Jul 21, 2019 10:37 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Polarizing Power [ENDORSED]
- Replies: 8
- Views: 1271
Re: Polarizing Power [ENDORSED]
it means the atom will pull electrons more easily
- Sun Jul 21, 2019 10:37 pm
- Forum: Resonance Structures
- Topic: Resonance Hybrid
- Replies: 3
- Views: 643
Re: Resonance Hybrid
i think you do need to know
- Sun Jul 21, 2019 10:36 pm
- Forum: Bond Lengths & Energies
- Topic: Bond lengths [ENDORSED]
- Replies: 2
- Views: 702
Re: Bond lengths [ENDORSED]
i think we just need to know what affects bond length, and what bond length does
- Sun Jul 14, 2019 11:54 pm
- Forum: Lewis Structures
- Topic: Formal Charge [ENDORSED]
- Replies: 2
- Views: 628
Formal Charge [ENDORSED]
I don't understand what formal charge is. Why is it only supposed to be either -1, 1 or 0
- Sun Jul 14, 2019 11:53 pm
- Forum: Lewis Structures
- Topic: Ionic Bond Structures [ENDORSED]
- Replies: 2
- Views: 635
Ionic Bond Structures [ENDORSED]
Will we be drawing the lewis structures of ionic bonds too?
- Wed Jul 10, 2019 10:22 pm
- Forum: *Shrodinger Equation
- Topic: General Question on Schrodinger Equation
- Replies: 2
- Views: 686
General Question on Schrodinger Equation
Can someone explain to me how the Schrodinger Equation relates to wave functions and orbitals
- Wed Jul 10, 2019 10:20 pm
- Forum: Ionic & Covalent Bonds
- Topic: Homework 3.5
- Replies: 7
- Views: 1087
Homework 3.5
I don't understand why the configuration for Bi would go from 4f to 5d, instead of 5s
- Sun Jul 07, 2019 10:55 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: How do we know that an electron can't be between an energy level?
- Replies: 3
- Views: 587
Re: How do we know that an electron can't be between an energy level?
they can only change levels when they get the exact amount of energy
- Sun Jul 07, 2019 10:54 pm
- Forum: Photoelectric Effect
- Topic: Photo electric effect
- Replies: 7
- Views: 924
Re: Photo electric effect
it has to be in a vacuum to be controlled, so other variables don't make the results inaccurate
- Sun Jul 07, 2019 10:54 pm
- Forum: DeBroglie Equation
- Topic: Calculating Velocity
- Replies: 9
- Views: 1600
Re: Calculating Velocity
electrons use ke, photons use the momentum equation
- Sun Jul 07, 2019 10:53 pm
- Forum: Trends in The Periodic Table
- Topic: Element Names
- Replies: 8
- Views: 1036
Re: Element Names
We will use the same periodic table for all the tests and they have the names, no need to memorize
- Sun Jul 07, 2019 10:52 pm
- Forum: *Particle in a Box
- Topic: Midterm
- Replies: 17
- Views: 4272
Re: Midterm
He said it will cover Fundamentals and Quantum World
- Sun Jul 07, 2019 10:51 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty
- Replies: 3
- Views: 465
Re: Uncertainty
depends on where it is, but usually when you calculate a number, you have a degree of uncertainty
- Sun Jun 30, 2019 4:47 pm
- Forum: Balancing Chemical Reactions
- Topic: H5 7th edition
- Replies: 4
- Views: 505
Re: H5 7th edition
I think the small number that follows it means you have to multiply the two numbers
- Sun Jun 30, 2019 4:46 pm
- Forum: Significant Figures
- Topic: Determining sig figs
- Replies: 10
- Views: 2434
Re: Determining sig figs
There's no difference between 100g and 100.g, but there is a difference between 100g and 100.0g or 100.00g. The zeros that follow the decimal point are significant
- Sun Jun 30, 2019 4:44 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: What does dilution mean in a chemistry problem?
- Replies: 8
- Views: 890
Re: What does dilution mean in a chemistry problem?
Dilution is when you make something less concentrated
- Wed Jun 26, 2019 10:30 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Homework Questions [ENDORSED]
- Replies: 3
- Views: 660
Homework Questions [ENDORSED]
If the homework question includes Problem 1, am I supposed to do both problems 1A and 1B if there are A and B?
- Wed Jun 26, 2019 10:23 pm
- Forum: Empirical & Molecular Formulas
- Topic: Molar Mass vs. Atomic Weight
- Replies: 7
- Views: 1353
Molar Mass vs. Atomic Weight
Can someone explain to me the difference between molar mass and atomic weight. When should I use them?
- Wed Jun 26, 2019 10:23 pm
- Forum: SI Units, Unit Conversions
- Topic: Can someone explain why we use kg for mass as the base unit?
- Replies: 9
- Views: 969
Re: Can someone explain why we use kg for mass as the base unit?
I believe kilograms is the standard SI unit recognized internationally.