Search found 21 matches

by NHolmes3L
Sun Nov 03, 2019 2:19 pm
Forum: Lewis Structures
Topic: Lewis structure
Replies: 3
Views: 24

Lewis structure

When creating lewis structures, sometimes the element in the middle ends up receiving more than 8 electrons, but is that okay if its charge is zero?
by NHolmes3L
Sun Nov 03, 2019 2:17 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: dino nugget midterm review 10d
Replies: 4
Views: 35

dino nugget midterm review 10d

Why did N have a greater ionization energy than O and does this exception occur in any of the other elements?
by NHolmes3L
Sun Nov 03, 2019 2:09 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: paul and hundd rules
Replies: 4
Views: 26

paul and hundd rules

Do we need to know Paul vs Hunds rules of electron configuration?
by NHolmes3L
Sun Nov 03, 2019 2:05 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron configuration
Replies: 4
Views: 14

electron configuration

So when you have an cation, where u take out elections, say Ni3+. Where do you remove the electrons since you filled the 4s before the 3d?
by NHolmes3L
Sun Nov 03, 2019 2:02 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron configuration
Replies: 2
Views: 11

electron configuration

Can someone explain why you would fill 4s before 3d
by NHolmes3L
Sun Oct 27, 2019 10:10 pm
Forum: Ionic & Covalent Bonds
Topic: Homework
Replies: 13
Views: 77

Re: Homework

yes, since that is what we are going over in class
by NHolmes3L
Sun Oct 27, 2019 10:09 pm
Forum: Ionic & Covalent Bonds
Topic: electron configuration order
Replies: 6
Views: 36

electron configuration order

does 4f or 5s come first?
by NHolmes3L
Sun Oct 27, 2019 10:05 pm
Forum: Ionic & Covalent Bonds
Topic: electron configuration
Replies: 5
Views: 37

electron configuration

what are the exceptions, like copper, and why are they different?
by NHolmes3L
Sun Oct 27, 2019 10:03 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic v. Covalent
Replies: 6
Views: 21

Re: Ionic v. Covalent

covalent bonds are between two non metals who share electrons. ionic bonds are between a nonmetal and metal who take and loose electrons. covalent bonds are stronger because ionic bonds dissociate in water.
by NHolmes3L
Sun Oct 27, 2019 10:01 pm
Forum: Ionic & Covalent Bonds
Topic: periodic table
Replies: 10
Views: 65

periodic table

which direction on the periodic table does electronegativity increase/decrease?
by NHolmes3L
Sun Oct 20, 2019 1:04 pm
Forum: *Black Body Radiation
Topic: 1B.19
Replies: 2
Views: 21

1B.19

How do u calculate different wavelengths if the velocity is the same?
by NHolmes3L
Sun Oct 20, 2019 1:01 pm
Forum: *Black Body Radiation
Topic: Energy of photons
Replies: 4
Views: 43

Energy of photons

What is the difference between E=hv and E=1/2mv^2?
When do you use them?
by NHolmes3L
Sun Oct 20, 2019 1:00 pm
Forum: *Black Body Radiation
Topic: Wein's Law
Replies: 1
Views: 20

Wein's Law

Do we need to know Wein's Law
by NHolmes3L
Sun Oct 20, 2019 12:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Stefan-B Law
Replies: 1
Views: 20

Stefan-B Law

Do we need to know the Stefan Boltzmann Law?
by NHolmes3L
Sun Oct 20, 2019 12:49 pm
Forum: Administrative Questions and Class Announcements
Topic: Accessing the E-textbook [ENDORSED]
Replies: 19
Views: 353

Re: Accessing the E-textbook [ENDORSED]

I bought the looseleaf one for $190 and it came with the e-text version
by NHolmes3L
Thu Oct 10, 2019 3:14 pm
Forum: Empirical & Molecular Formulas
Topic: F.21
Replies: 2
Views: 44

F.21

Why aren't we supposed to convert the mg to grams?
by NHolmes3L
Sun Oct 06, 2019 10:34 pm
Forum: Molarity, Solutions, Dilutions
Topic: E.15
Replies: 2
Views: 31

E.15

Where is the sulfide in M(OH)2?
by NHolmes3L
Sun Oct 06, 2019 10:29 pm
Forum: Molarity, Solutions, Dilutions
Topic: E.13
Replies: 2
Views: 53

E.13

Could someone please explain the rearranging in E.13. How do you isolate the percent of one of the atoms?
by NHolmes3L
Sun Oct 06, 2019 9:54 pm
Forum: Molarity, Solutions, Dilutions
Topic: E.9
Replies: 3
Views: 53

E.9

For question E.9, it asks to write the formula for Magnesium Sulfate Heptahydrate. How am I supposed to figure our what the formula is.
by NHolmes3L
Sat Oct 05, 2019 12:35 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 166
Views: 100983

Re: Rusty on High School Chem [ENDORSED]

I am super rusty on Chemistry too. Going through the textbook and practice problems helps me the most. Crash Course Chemistry videos also are a great for review.
by NHolmes3L
Thu Oct 03, 2019 4:03 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 129
Views: 75235

Re: Reading the textbook [ENDORSED]

I find it much more helpful to read the textbook. Take it slow and take notes. Going through all the practice problems helps too to make sure you understand the material.

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