Which of the answer choices correctly describes an action that will increase the solubility of a solid solute in water?

Question

cool the solution

increase the pressure

heat the solution

decrease the pressure

Examine the statement.
The energy required to break the bonds of the reactants in a chemical reaction is more than the energy used to form the products.
Which answer choice correctly identifies a characteristic of the reaction in the description?

endothermic

exothermic

a slow reaction rate

a fast reaction rate

Answer 1

And your thoughts?

Answer 2

I think the first one is C and the second one B

Answer 3

I mean first one c and the second one c

Answer 4

I agree with 1 but not 2.

Answer 5

was the first answer for question 2 wrong as well

Answer 6

Is it d?

Answer 7

Yes, the first answer was wrong, too.
AB = A + B + energy ......exothermic
AB + energy ==> A + B....endothermic