A system does 591 kJ of work and loses 256 kJ of heat to the surroundings. What is the change in internal energy, AE, of the system? Note that internal energy is symbolized as AU in some sources.

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .