Answer:
b warm wet air rises and punches cold dry air down causing the air to spin
D. There are only a week Hydrophobic interactions in the interior of the membrane.
Explanation:
i do numerous questions with answers to get idea of questions that are tested
Answer: C. The sign of the enthalpy of the reaction reverses.
Explanation: Enthalpy of a reaction is the net heat absorbed or released during a chemical reaction.It is represented by
. It is negative for exothermic reactions in which heat is released and is positive for endothermic reactions in which heat is absorbed.
When a chemical reaction is reversed the heat of the reaction changes its sign.

The decomposition of calcium carbonate is an endothermic reaction as heat is required to break the bonds and thus energy is absorbed.

When the reaction is reversed, the reaction becomes exothermic as now bonds are getting formed and energy is released.
Answer:
I'm pretty sure the answer is C
Explanation:
if H2 and O2 are coming together to make H20 (water) then H20 should be considered as the "product" of the reaction