anonymous
  • anonymous
Can someone help me with Chemistry? I cannot get help from them. Which reactions are endothermic?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Mertsj
  • Mertsj
Endothermic means that heat is absorbed. You have checked the equations where heat is one of the products.
anonymous
  • anonymous
Ok but, my lesson says that I missing some, and some are wrong.

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Mertsj
  • Mertsj
The first one and the third one are endothermic. The heat should be on the left as one of the reactants. If it is on the right, it would be negative.
anonymous
  • anonymous
Ok so which one is wrong? I really hate this.
Mertsj
  • Mertsj
There are 5 boxes|dw:1326855774865:dw|
anonymous
  • anonymous
Ok, thanks, Can you help me with another?
Mertsj
  • Mertsj
Maybe. If I remember enough chemistry.
anonymous
  • anonymous
Mertsj
  • Mertsj
I can't see the choices. The menu won't work.
anonymous
  • anonymous
What do you mean?
Mertsj
  • Mertsj
|dw:1326856100986:dw|
Mertsj
  • Mertsj
It won't let me see the choices.
anonymous
  • anonymous
Oh they are all these two options. endothermic/ exothermic
Mertsj
  • Mertsj
1. exothermic 2. Exothermic 3. endothermic 4. endothermic 5. endothermic 6 endothermic 7. endothermic 8. exothermic
anonymous
  • anonymous
Alright let me try these. lol
anonymous
  • anonymous
Umm again I have three of them wrong... I had three before as well.
Mertsj
  • Mertsj
Well I'm not sure what those E1 and E2 mean. Do you know?
anonymous
  • anonymous
No my lesson sucks at telling me.
Mertsj
  • Mertsj
Did you have the same as I had for the E questions?
anonymous
  • anonymous
Yes
Mertsj
  • Mertsj
How many chances do you get?
anonymous
  • anonymous
3 chances.
Mertsj
  • Mertsj
So you have one more chance?
anonymous
  • anonymous
Yea
Mertsj
  • Mertsj
Well if it were me, I'd switch the E questions and I'm not sure about the other one. I could do a little internet research.
anonymous
  • anonymous
I am doing it too not finding an retriceload of information though.. . Try it though,
Mertsj
  • Mertsj
If the environment becomes hotter, we have an exothermic reaction.
anonymous
  • anonymous
Yup I got that.
Mertsj
  • Mertsj
So 3 and 7 must both be exothermic because it says that the final temp is greater.
Mertsj
  • Mertsj
A reaction is overall exothermic if more energy is released when new bonds form in products than is used when bonds in the reactants are broken.
Mertsj
  • Mertsj
Are you there?
Mertsj
  • Mertsj
I think you should change 3 and 7 and 8
anonymous
  • anonymous
Yeah I am here.
anonymous
  • anonymous
I am thinking.

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