Search found 19 matches

by Alan Cornejo 1a
Sun Oct 27, 2019 8:13 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7567
Views: 1010970

Re: Post All Chemistry Jokes Here

A conversation between two atoms:
I think I’ve lost an electron.
Are you sure?
Yeah, I’m positive.
by Alan Cornejo 1a
Sun Oct 27, 2019 8:12 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7567
Views: 1010970

Re: Post All Chemistry Jokes Here

My teacher threw Sodium Chloride at me. That’s a salt.
by Alan Cornejo 1a
Sun Oct 27, 2019 8:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7567
Views: 1010970

Re: Post All Chemistry Jokes Here

“What do you do with a sick chemist?”
“If you can’t helium, and you can’t curium, then you might as well barium.”
by Alan Cornejo 1a
Sun Oct 27, 2019 8:10 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7567
Views: 1010970

Re: Post All Chemistry Jokes Here

helium walks into a bar and orders a beer. The bartender says, “Sorry, we don’t serve noble gases here.” He doesn’t react
by Alan Cornejo 1a
Sun Oct 20, 2019 11:12 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 50
Views: 241

Re: Advice for studying

Alexis 3F wrote:I've been attending the workshops a few times a week and it's made suchhhh a positive improvement!!!!


I also found this to be super helpful
by Alan Cornejo 1a
Sun Oct 20, 2019 11:10 pm
Forum: Properties of Electrons
Topic: Angstrom Conversion
Replies: 12
Views: 83

Re: Angstrom Conversion

905416023 wrote:It is 1 angstrom to 10^-10 m


correct answer
by Alan Cornejo 1a
Sun Oct 20, 2019 11:04 pm
Forum: Properties of Light
Topic: What are the units of hertz
Replies: 41
Views: 205

Re: What are the units of hertz

nicolely3B wrote:Hz is the unit for 1 cycle/second. The cycle refers to a wave's cycle and it's from the peak of one wave to the trough of the next



perfect explanation
by Alan Cornejo 1a
Sun Oct 20, 2019 10:59 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 127
Views: 74873

Re: Reading the textbook [ENDORSED]

reading the textbook is an obvious super helpful tool, to better go in depth as to what you are learning and practice.
by Alan Cornejo 1a
Sun Oct 20, 2019 10:57 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic vs Covalent
Replies: 29
Views: 263

Re: Ionic vs Covalent

Typically, ionic bonds are stronger but there are exceptions such as weakened ionic bonds as water as well as special strengthened covalent bonds known as covalent network bonding.
by Alan Cornejo 1a
Sun Oct 13, 2019 10:04 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 127
Views: 74873

Re: Reading the textbook [ENDORSED]

I used these for my AP Chemistry class in high school, but I think they have some college-level chem as well: https://chem.libretexts.org/ https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA https://www.youtube.com/watch?v=IFKnq9QM6_A&list=PLJfwA7_CzYE_qLSXH2hJkpffcrc76NjHJ Hope this helps...
by Alan Cornejo 1a
Sun Oct 13, 2019 10:02 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Wavelength Plausibility
Replies: 26
Views: 462

Re: Wavelength Plausibility

madeleine_dis1E wrote:Yes, the 700-400nm example he gave is meant to provide a mental picture of the range however the actual scale is from 720-400. Either way you want to remember it is ok.


correct, 700 is just used for an easier conceptualization of the actual range
by Alan Cornejo 1a
Sun Oct 13, 2019 9:54 pm
Forum: Administrative Questions and Class Announcements
Topic: KAREN SUN 5-7PM WORKSHOP - DOWNLAOD WORKSHEETS HERE
Replies: 42
Views: 1118

Re: KAREN SUN 5-7PM WORKSHOP - DOWNLAOD WORKSHEETS HERE

great tool and resource to help review and further cement the fundamentals of each topic covered in class !
by Alan Cornejo 1a
Sun Oct 13, 2019 9:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Week 2 Homework Problems [ENDORSED]
Replies: 67
Views: 958

Re: Week 2 Homework Problems [ENDORSED]

You have the option of either doing more problems from week 1 of Chem review or the quantam world
by Alan Cornejo 1a
Sun Oct 13, 2019 9:38 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Test 1 [ENDORSED]
Replies: 107
Views: 1706

Re: Test 1 [ENDORSED]

I don't know if someone has asked this already but would we get partial credit for unfinished problems headed in the right direction? I was also wondering this as, I was also curious as to how far off of an answer would grant us the maximum amount of points ie. our answer is 8.4 whereas the actual ...
by Alan Cornejo 1a
Sun Oct 06, 2019 10:13 pm
Forum: Limiting Reactant Calculations
Topic: Steps to Finding the Limiting Reactant
Replies: 3
Views: 36

Re: Steps to Finding the Limiting Reactant

You only need to use the molar mass of one reactant to find the product, so you can keep the molar masses of the products separated. First, convert the grams given of a particular reactant to moles. Then, use the molar ratio of the balanced equation to determine how much of a particular product is ...
by Alan Cornejo 1a
Sun Oct 06, 2019 10:07 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Theoretical vs. Actual Yield
Replies: 38
Views: 258

Re: Theoretical vs. Actual Yield

Actual yields will be less than theoretical yields due to side reactions that can occur, some products could stick to the sides of the reaction container, and impurities that are bound to happen during almost all chemical reactions. Hope this was helpful/answered your question! exactly ! There are ...
by Alan Cornejo 1a
Sun Oct 06, 2019 10:03 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student - Part II [ENDORSED]
Replies: 117
Views: 1509

Re: Advice from a Medical Student - Part II [ENDORSED]

Great and awesome to hear that you still think about and take time to give advice to students of a teacher you had so long ago. We all appreciate the advice and good luck to you and all your endeavours .
by Alan Cornejo 1a
Sun Oct 06, 2019 9:58 pm
Forum: Student Social/Study Group
Topic: Final Jitters
Replies: 61
Views: 18346

Re: Final Jitters

I think the best way to relax and get rid of the nerves is to just close your eyes and breathe, just focus on good and positive memories and experiences will enhance your mood making you happier, the happier you are the more willing you are to focus and do something, it will also help clear your min...
by Alan Cornejo 1a
Sun Oct 06, 2019 9:53 pm
Forum: SI Units, Unit Conversions
Topic: Sig Fig Mistakes
Replies: 17
Views: 123

Re: Sig Fig Mistakes

Typically the amount of significant figures used for your answer is determined by the amount gaven to you in the question. Usually it follows these rules
any non-zero digits are always significant.
Any zeros between two significant digits are still significant.

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