Search found 23 matches

by Cytlalli 1B
Sun Jun 03, 2018 7:55 pm
Forum: Hybridization
Topic: Clarification
Replies: 4
Views: 217

Clarification

When it says to apply the types of hybridization to bonding models of inorganic, organic, and biological compounds, what does that exactly mean?
by Cytlalli 1B
Sun Jun 03, 2018 7:51 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Lone pairs
Replies: 5
Views: 163

Lone pairs

Why are lone pairs more likely to found in certain locations around a central atom and how/why do they affect the bond angles in a molecule, cation, or anion?
by Cytlalli 1B
Sun Jun 03, 2018 7:49 pm
Forum: Hybridization
Topic: Sigma and Pi Bonds
Replies: 5
Views: 182

Sigma and Pi Bonds

How do you know when there is sigma/pi bonding?
by Cytlalli 1B
Sun May 27, 2018 6:08 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Polarity
Replies: 2
Views: 74

Polarity

How do you know when a molecule has polarity or is it in every molecule? If so how do you determine which is positive and which is negative?
by Cytlalli 1B
Sun May 27, 2018 5:54 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Molecular Shape
Replies: 1
Views: 83

Molecular Shape

Does the amount of bonds affect the shape of the molecule? For example double or triple bonds?
by Cytlalli 1B
Sun May 27, 2018 5:50 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 1
Views: 86

Bond Angles

How do you know if bond angles are exactly a number or less than a certain number because I know for some questions the answers are exactly 120 degrees but others are for example angles are less than 109.5 degrees
by Cytlalli 1B
Thu May 17, 2018 7:26 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge
Replies: 3
Views: 218

Formal Charge

When there is a - in front of a molecule you add an electron to the formal charge and when there is a + you subtract an electron from the overall formal charge right?
by Cytlalli 1B
Thu May 17, 2018 7:24 pm
Forum: Lewis Structures
Topic: Radicals
Replies: 2
Views: 95

Radicals

Radicals have an odd number of electrons but is it possible to have an odd number of electrons and the molecule not be a radical?
by Cytlalli 1B
Thu May 17, 2018 7:23 pm
Forum: Resonance Structures
Topic: Resonance Structures [ENDORSED]
Replies: 4
Views: 174

Resonance Structures [ENDORSED]

How do you make sure that you have found all the resonance structures possible or is it just through trial and error?
by Cytlalli 1B
Sun May 13, 2018 2:58 pm
Forum: Ionic & Covalent Bonds
Topic: 3.29
Replies: 6
Views: 211

Re: 3.29

Coulombic attraction is the attraction between oppositely charged particles. For example, the protons in the nucleus of an atom have an attraction for the electrons surrounding the nucleus. The problem is asking you which has the greatest electronegativity.
by Cytlalli 1B
Sun May 13, 2018 2:53 pm
Forum: Lewis Structures
Topic: Radicals [ENDORSED]
Replies: 3
Views: 118

Radicals [ENDORSED]

How do you know if a species is a radical such as between the following NO2-, CH3, and OH?
by Cytlalli 1B
Sun May 13, 2018 2:49 pm
Forum: Lewis Structures
Topic: Most Important Lewis Structure
Replies: 4
Views: 155

Most Important Lewis Structure

When asking the question to draw the most important lewis structure, does that mean to just draw the Lewis Structure that makes its elements most stable (in accordance with addition of double bonding and such) ?
by Cytlalli 1B
Sun May 06, 2018 8:05 pm
Forum: Empirical & Molecular Formulas
Topic: Order of Elements [ENDORSED]
Replies: 3
Views: 249

Order of Elements [ENDORSED]

When writing the empirical and molecular formulas that you calculate, does it matter in what order you put the elements in?
by Cytlalli 1B
Sun May 06, 2018 8:04 pm
Forum: Ionic & Covalent Bonds
Topic: Atomic and Ionic Radius
Replies: 2
Views: 119

Atomic and Ionic Radius

What's the difference between the atomic radius and ionic radius?
by Cytlalli 1B
Sun May 06, 2018 8:01 pm
Forum: Lewis Structures
Topic: Electron Configuration
Replies: 6
Views: 228

Electron Configuration

Why does the d-orbital start at 3 while the s and p start off at 1,2,.. and so on?
by Cytlalli 1B
Sun Apr 29, 2018 9:51 pm
Forum: Quantum Numbers and The H-Atom
Topic: Orientation of Lobes
Replies: 3
Views: 161

Orientation of Lobes

when asking to describe the orientation of lobes, does that mean to just describe their shape?
by Cytlalli 1B
Sun Apr 29, 2018 9:47 pm
Forum: Quantum Numbers and The H-Atom
Topic: Atomic Radius
Replies: 4
Views: 133

Atomic Radius

How do you find the atomic radius of elements?
by Cytlalli 1B
Sun Apr 22, 2018 1:28 pm
Forum: Properties of Light
Topic: HW #1.65
Replies: 2
Views: 80

HW #1.65

The question asks The energy required to break a C-C bond in a molecule is 348 kJxmol-1. Will visible light be able to break this bond? If yes, what is the color of that light? If not, what type of electromagnetic radiation will be suitable? My question is once I know if the visible light can break ...
by Cytlalli 1B
Sun Apr 22, 2018 12:51 pm
Forum: DeBroglie Equation
Topic: Homework 1.33 Part C
Replies: 3
Views: 136

Re: Homework 1.33 Part C

I believe that going back to Friday's lecture we talked about how energy is released through photoejection of an electron meaning there would be kinetic energy. So overall, yes, we know to use kinetic energy because it is about the photoelectric effect. Photoelectric problems follow the format of th...
by Cytlalli 1B
Sun Apr 15, 2018 8:32 pm
Forum: Properties of Light
Topic: Calculating the energy of a photon [ENDORSED]
Replies: 2
Views: 116

Calculating the energy of a photon [ENDORSED]

In example 1.4, question a asks what is the energy of a single photon of blue light of frequency 6.4x10^14 Hz. To solve you use the equation E(1 photon)=hv. We are solving for e and I already know h being the frequency of the blue light but how do I find v? The example shows that you get (6.626x10^-...
by Cytlalli 1B
Sun Apr 15, 2018 7:15 pm
Forum: Balancing Chemical Reactions
Topic: Writing Products
Replies: 2
Views: 151

Re: Writing Products

I'm pretty sure the product would be KO+ Cl and you would balance it out like this: 2KCl+O2=2KO+2Cl
by Cytlalli 1B
Sat Apr 14, 2018 11:38 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Homework 1.13 [ENDORSED]
Replies: 3
Views: 142

Homework 1.13 [ENDORSED]

a) Use the Rydberg formula for atomic hydrogen to calculate the wavelength of radiation generated by the transition from n=4 to n=2 For this part of the homework question, I need help understanding how to find c through the relationship of c=vλ beforehand so that I can then actually solve for the wa...
by Cytlalli 1B
Sat Apr 14, 2018 11:24 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Chemical Equations and Combustion
Replies: 7
Views: 320

Re: Balancing Chemical Equations and Combustion

Combustion reactions involve hydrogen or a hydrocarbon reacting with oxygen and usually always produce water and carbon dioxide as their products. After you figure out which products make sense from these reactants, you can balance the equation.

Go to advanced search