How do isotopes of an atom differ? how are they the same?

Evaluate this exponential expression,8. (2 + 3)2 – 42

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains