Search found 30 matches

by 005095564
Sat Nov 09, 2019 7:37 pm
Forum: Electronegativity
Topic: Differences
Replies: 2
Views: 39

Differences

Difference between ionization, electron affinity, electronegativity?
by 005095564
Sat Nov 09, 2019 7:33 pm
Forum: Dipole Moments
Topic: Electronegativity on Dipoles
Replies: 3
Views: 33

Electronegativity on Dipoles

How does electronegativity play a factor in dipoles? If electro negativities aren't exactly equal should we say there is a dipole moment?
by 005095564
Sat Nov 09, 2019 7:31 pm
Forum: Dipole Moments
Topic: BOND STRENGTH
Replies: 4
Views: 41

BOND STRENGTH

Will a molecule with 3 single bonds and one double bond be considered polar or nonpolar? Im confused on how to interpret this.
by 005095564
Sat Nov 09, 2019 7:27 pm
Forum: Dipole Moments
Topic: Dipole Dipole
Replies: 3
Views: 29

Dipole Dipole

When looking at a molecule, how do we know there will be a dipole dipole moment? Are there any tricks to determining this?
by 005095564
Sat Nov 09, 2019 7:26 pm
Forum: Bond Lengths & Energies
Topic: Bonds
Replies: 2
Views: 62

Bonds

In water, is there a difference in the bond length and strength with hydrogen and covalent bonds?
by 005095564
Sun Nov 03, 2019 6:30 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Copper and Chromium
Replies: 1
Views: 37

Copper and Chromium

Do we need to know the weird/ special electron configurations for Copper and Chromium?
by 005095564
Sun Nov 03, 2019 6:26 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Rydberg equation
Replies: 3
Views: 72

Rydberg equation

When do you know to use the rydberg equation? Also I'm not sure if I wrote the equation wrong but is the Rydberg constant multiplied by another constant or?
by 005095564
Sun Nov 03, 2019 6:23 pm
Forum: Trends in The Periodic Table
Topic: Atomic Radii
Replies: 10
Views: 248

Atomic Radii

When do we use atomic radius in problems? What is it useful for and what exactly is it?
by 005095564
Sun Nov 03, 2019 6:20 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Nodes
Replies: 1
Views: 39

Nodes

What are nodes? How do they pertain to orbitals and what is their importance?
by 005095564
Sun Nov 03, 2019 6:18 pm
Forum: *Shrodinger Equation
Topic: Shrodinger Equation
Replies: 2
Views: 136

Shrodinger Equation

When do you know when to use the Shrodinger Equation? What phrases or words in a question hint towards using the formula.
by 005095564
Wed Oct 23, 2019 4:05 pm
Forum: Trends in The Periodic Table
Topic: blocks
Replies: 13
Views: 145

blocks

Are we going to need to remember the groupsfor s block, p block, and d block???
by 005095564
Wed Oct 23, 2019 3:44 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: E- removal
Replies: 3
Views: 36

E- removal

Why is it harder to remove a second electron from an element?
by 005095564
Wed Oct 23, 2019 3:39 pm
Forum: Trends in The Periodic Table
Topic: Location of elements
Replies: 12
Views: 200

Location of elements

Are we expected to know where solids, nonmnetals, liquids, gas, etc. are located on the periodic table?
by 005095564
Wed Oct 23, 2019 3:34 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Ion
Replies: 3
Views: 29

Ion

Im confused what the ground state of an ion is? An ion is always charged?
by 005095564
Wed Oct 23, 2019 3:09 pm
Forum: Trends in The Periodic Table
Topic: Trend in periodic table
Replies: 6
Views: 43

Trend in periodic table

So as we move across a row on the periodic table, that accounts to how many valance electrons are in the outer shell. What does going down the periodic table mean?
by 005095564
Fri Oct 18, 2019 10:19 am
Forum: Properties of Electrons
Topic: Delta
Replies: 3
Views: 56

Delta

Can someone explain why delta is negative when the change in an electron goes from N=1 to N=3?
by 005095564
Fri Oct 18, 2019 10:14 am
Forum: Properties of Light
Topic: Wavelength and Frequency
Replies: 2
Views: 37

Wavelength and Frequency

I need help understanding how one wavelength can have multiple peaks / cyles within a given time, lets say one second, and another will have less cyles within that second (longer wavelengths). Can someone explain frequency to me and how it affects amplitude, intensity of light, and the number of pho...
by 005095564
Fri Oct 18, 2019 10:11 am
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Bohr's Equation
Replies: 5
Views: 93

Re: Bohr's Equation

I honestly doubt it, since most the time he gives us the front of the test with equations and names. I would look at previous tests and see if it was required to have it memorized
by 005095564
Fri Oct 18, 2019 10:09 am
Forum: Photoelectric Effect
Topic: Spectrum of light
Replies: 6
Views: 71

Spectrum of light

Can someones list the light spectrum in order from highest energy/frequency to lowest?
Also are we required to have these memorized?
by 005095564
Fri Oct 18, 2019 10:04 am
Forum: Photoelectric Effect
Topic: Photoelectric Effect
Replies: 6
Views: 81

Photoelectric Effect

Just checking to make sure I understood this concept;
If the photons energy is the same as the work energy needed to remove an electron, how would the electron move away from the metal? Would its kinetic energy just be 0 and not leave the metal?
by 005095564
Sun Oct 13, 2019 8:42 pm
Forum: Properties of Light
Topic: Wavelength
Replies: 4
Views: 55

Wavelength

So lets say a problem states the velocity, how do you compute for the wavelength of an electron with just the velocity given?
by 005095564
Sun Oct 13, 2019 8:38 pm
Forum: Properties of Electrons
Topic: N increase
Replies: 2
Views: 11

N increase

What happens to the electron when n is increasing?
by 005095564
Sun Oct 13, 2019 8:37 pm
Forum: Properties of Light
Topic: Photoelectric Effect
Replies: 1
Views: 24

Photoelectric Effect

So in the photoelectric effect, light removes an electron from a surface, but on other problems light is a wave. How can we distinguish when it is acting like a wave or particle?
by 005095564
Sun Oct 13, 2019 8:35 pm
Forum: Properties of Light
Topic: Photons
Replies: 4
Views: 57

Photons

What exactly is a photon and how do they not have a rest mass when they do have energy and momentum?
by 005095564
Mon Oct 07, 2019 4:23 pm
Forum: Empirical & Molecular Formulas
Topic: Empirical Formula Help [ENDORSED]
Replies: 7
Views: 279

Empirical Formula Help [ENDORSED]

When trying to find the empirical formula, when do we divide the mole by the smallest # of moles calculated? I'm not really sure what the next step is after you find the amount of moles in an element of a compound (g/(g/mol))
by 005095564
Thu Oct 03, 2019 2:23 pm
Forum: Molarity, Solutions, Dilutions
Topic: Delta
Replies: 2
Views: 73

Delta

I'm still confused what the delta over the reaction means. I understand that it means heat, but do we just get rid of a CO2 from the product?
by 005095564
Thu Oct 03, 2019 2:19 pm
Forum: Empirical & Molecular Formulas
Topic: Molecular formula
Replies: 2
Views: 56

Molecular formula

What is the formula (molar mass of ACTUAL molecule / molar mass of emirical formula) used for? and how do you know when to use it?
by 005095564
Thu Oct 03, 2019 1:22 pm
Forum: Limiting Reactant Calculations
Topic: Percentage Yields
Replies: 8
Views: 130

Percentage Yields

What does a percentage yield mean and what numbers classify as high yields?
I understand that we want high percentage yields, correct?
by 005095564
Thu Oct 03, 2019 1:12 pm
Forum: Balancing Chemical Reactions
Topic: Fractions in front of compounds
Replies: 12
Views: 177

Fractions in front of compounds

When balancing out equations, we should have whole numbers always. Do we only multiply each compound on both sides of the equation when there is a fraction on either side of the problem or would there be other scenarios when we would multiply to each side?
by 005095564
Thu Oct 03, 2019 1:08 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Avogadro's Number?
Replies: 16
Views: 367

Avogadro's Number?

I know avogadros number is 6.022 x 10^-23, and it is a constant. I'm just unsure when I should be using it in an equation because most problems do not tell you when to use it.

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