For a certain chemical reaction, the reactants contain 52 kJ of potential energy, and the products contain 32 kJ. How much energy is absorbed or
released by the reaction?
A. 20 kJ is absorbed.
B. 84 KJ is released.
C. 20 kJ is released
D. 84 kJ is absorbed.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

i think it is true since you can test the answer and can use observations to complete it.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

there is none because earth is stationary and flat.