Pls help im being timed Which statement is most accurate about energy absorbed and released in this chemical reaction?

Mg(OH)2 → MgO + H2O [ΔH = 37.1 kJ]

A. It is an endothermic reaction and energy is released from the system

B. It is an endothermic reaction and energy is absorbed by the system

C. It is an exothermic reaction and energy is absorbed by the system

D. It is an exothermic reaction and energy is released from the system

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.

(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.

Aman applies a force of 500n to push a truck 100m down the street how much does he do?