anonymous
  • anonymous
What change would not result in the equilibrium position shifting to the left? 2 A (g) + B (s) Two arrows stacked on top of each other. The top arrow points to the right. The bottom arrow points to the left. 3 C (g) + Energy Increasing the pressure Adding more of gas C to the system Removing some of A from the system Cooling the system
Chemistry
schrodinger
  • schrodinger
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anonymous
  • anonymous
anonymous
  • anonymous
im going with b !
taramgrant0543664
  • taramgrant0543664
Adding more C would shift the equilibrium to go left ward

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anonymous
  • anonymous
@taramgrant0543664 so im correct?
taramgrant0543664
  • taramgrant0543664
You want which change does NOT make the equilibrium shift left
anonymous
  • anonymous
so a would be correct @taramgrant0543664 :)
anonymous
  • anonymous
@JoannaBlackwelder you there?
JoannaBlackwelder
  • JoannaBlackwelder
Yeah, increasing the pressure shifts the equilibrium toward less gas molecules, so no, not a.
taramgrant0543664
  • taramgrant0543664
yes Joanna has that right it would not be A
anonymous
  • anonymous
MY LAST OPTION IS C MAKES THE MOST SENSE
taramgrant0543664
  • taramgrant0543664
Removing Some of A from the system will shift the reaction to go left
anonymous
  • anonymous
so c will be ocrrect? @JoannaBlackwelder
JoannaBlackwelder
  • JoannaBlackwelder
No, we want to shift the equilibrium right.
anonymous
  • anonymous
so my final choice is d
JoannaBlackwelder
  • JoannaBlackwelder
Haha, yep. Cooling the system removes energy, which is a product. So it will shift right. :-)
anonymous
  • anonymous
haha ok
anonymous
  • anonymous
The space shuttle uses ammonium perchlorate and aluminum to create an explosive reaction. The reaction can be seen below. 2 NH4ClO4 (s) + 2 Al (s) yields Al2O3 (g) + 2 HCl (g) + 2 NO(g) + 3 H2O (g) Which of the following statements correctly describes this reaction? Aluminum is oxidized because it lost electrons. Aluminum is oxidized because it gained electrons. Oxygen is oxidized because it lost electrons. Oxygen is oxidized because it gained electrons.
anonymous
  • anonymous
im going with b @JoannaBlackwelder
JoannaBlackwelder
  • JoannaBlackwelder
Why do you think it is b?
anonymous
  • anonymous
cause te eqation is gainign electrons
JoannaBlackwelder
  • JoannaBlackwelder
Hm, the whole reaction is gaining electrons? Why would that mean that Al is gaining electrons?
anonymous
  • anonymous
true so b is incorrect ;(
JoannaBlackwelder
  • JoannaBlackwelder
Yes
anonymous
  • anonymous
so a is correct
JoannaBlackwelder
  • JoannaBlackwelder
Why do you think a?
anonymous
  • anonymous
cause electorns are being lost
JoannaBlackwelder
  • JoannaBlackwelder
How do you know?
anonymous
  • anonymous
because electons are being losy
JoannaBlackwelder
  • JoannaBlackwelder
Hm, I agree that electrons are being lost, and they are also being gained. How do you know that Al is doing the losing and not the gaining?
anonymous
  • anonymous
@JoannaBlackwelder really dont kno
anonymous
  • anonymous
JoannaBlackwelder
  • JoannaBlackwelder
We can tell by finding their oxidation numbers in the products and reactants. Do you know how to do that?
anonymous
  • anonymous
ye
JoannaBlackwelder
  • JoannaBlackwelder
So, what are they for Al and O on each side?
anonymous
  • anonymous
+3 and -1
anonymous
  • anonymous
@JoannaBlackwelder is b correct or not
anonymous
  • anonymous
e igotta go
anonymous
  • anonymous
cuase
JoannaBlackwelder
  • JoannaBlackwelder
No, b is incorrect.
JoannaBlackwelder
  • JoannaBlackwelder
And your oxidation are incorrect
JoannaBlackwelder
  • JoannaBlackwelder
*numbers
anonymous
  • anonymous
so c would be correct
anonymous
  • anonymous
yes or no before igo
JoannaBlackwelder
  • JoannaBlackwelder
No, you need to work on your fundamentals and not just guess.
anonymous
  • anonymous
so d ;)
JoannaBlackwelder
  • JoannaBlackwelder
I'm not going to narrow it down more for you. http://www.chemteam.info/Redox/Redox-Rules.html
anonymous
  • anonymous
okay but igotta go and it the last quesiton ? comeon d is correct or is another choice correct medel will be rewarded please ;_
anonymous
  • anonymous
JoannaBlackwelder
  • JoannaBlackwelder
I'm not just going to give you the answer. That is against openstudy policy and is generally called cheating. I gave you the info you need to find it yourself, but you are just guessing. If you want to put effort into actually understanding the problem I would be happy to help.

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