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Mathematics
OpenStudy (anonymous):

Can someone help me with Chemistry? I cannot get help from them. Which reactions are endothermic?

OpenStudy (anonymous):

OpenStudy (mertsj):

Endothermic means that heat is absorbed. You have checked the equations where heat is one of the products.

OpenStudy (anonymous):

Ok but, my lesson says that I missing some, and some are wrong.

OpenStudy (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.

OpenStudy (anonymous):

Ok so which one is wrong? I really hate this.

OpenStudy (mertsj):

There are 5 boxes|dw:1326855774865:dw|

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