Search found 9 matches

by Melissa Rebollar 1F
Tue Jul 25, 2017 2:14 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Equilibrium Constant
Replies: 2
Views: 282

Re: Equilibrium Constant

Could you please explain more when to use Kc or Kp. Because don't all reactions when finding either K occur in gas phases?
by Melissa Rebollar 1F
Sun Jul 23, 2017 8:36 pm
Forum: Administrative Questions and Class Announcements
Topic: Course grade break down
Replies: 3
Views: 486

Re: Course grade break down

Hi! So is it 1 point per post or 2 points per post?
by Melissa Rebollar 1F
Sun Jul 23, 2017 8:33 pm
Forum: General Science Questions
Topic: Test 2
Replies: 1
Views: 574

Test 2

Will there be a review session for Test 2?
by Melissa Rebollar 1F
Sun Jul 16, 2017 4:03 pm
Forum: Octet Exceptions
Topic: Octet Exception
Replies: 1
Views: 245

Octet Exception

So do all elements in periods 2 and 13 don't have to follow the octet rule or just B and Be? How do you know which ones are an exception to the octet rule and which ones are allowed to have more than 8 electrons or less than 8?
by Melissa Rebollar 1F
Wed Jul 12, 2017 12:34 am
Forum: General Science Questions
Topic: Midterm 1 Monday Review
Replies: 1
Views: 486

Midterm 1 Monday Review

On Monday's review, Professor Lavelle did a practice problem that dealt with finding the molecular formula. We had solved the problem and got that the molecular formula was C9H11NO4, however, we did not divide by the smallest number. My question is, did we not divide by the smallest number because t...
by Melissa Rebollar 1F
Wed Jul 12, 2017 12:25 am
Forum: Resonance Structures
Topic: Resonance
Replies: 1
Views: 292

Resonance

What is a benzene resonance hybrid? What does the circle inside mean?
by Melissa Rebollar 1F
Wed Jul 12, 2017 12:20 am
Forum: Octet Exceptions
Topic: Octets
Replies: 8
Views: 715

Octets

Could someone please explain why Sulfur can have more than an octet and if that is the only exception? Thank you!
by Melissa Rebollar 1F
Fri Jun 30, 2017 3:01 pm
Forum: Balancing Chemical Reactions
Topic: Leaving Balanced equations in half
Replies: 2
Views: 396

Re: Leaving Balanced equations in half

We have to multiply the whole equation by 2 to eliminate the fraction! I'm not exactly sure what the professor said but he mentioned in class that we need to do this because molecules and atoms don't come in fractional parts. :)
by Melissa Rebollar 1F
Fri Jun 30, 2017 2:50 pm
Forum: Balancing Chemical Reactions
Topic: Order of molecules balanced
Replies: 6
Views: 793

Re: Order of molecules balanced

I don't think it matters which element you balance first. You start with the element with the lowest amount because it's easier as you go on and balance the rest, but if more than one element has the lowest number, it doesn't matter which one you do first. Like Natalie mentioned, it's helpful if you...

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