11) When ice in a beaker melts (the system), energy flows from the to the . The process would be considered . *

a.) system (beaker), surroundings, endothermic
b.) surroundings, system (beaker), exothermic
c.) system (beaker), surroundings, exothermic
d.) surroundings, system (beaker), endothermic

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

Which suspect most likely committed the robbery and how do you know

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?