Which method of separating a mixture involves passing a heterogeneous mixture through several layers of different materials?
O filtration
O decantation
O evaporation
O distillation

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?