When 300 mL of mass concentration 0.2 mol/L solution of barium chloride is mixed with 100mL of a 0.1mol/L solution of iron (III) sulfate 3BaCl2(aq) + Fe2(SO4)3(aq)  3BaSO4(s) + 2FeCl3(aq) Find the concentration of Cl- ion.

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

May someone me with these science questions