The molar heat of fusion of iron(II) sulfide (FeS) is 20.9kJ. What mass of melted FeS at its melting point must solidify to release 150.0 kJ of energy?

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

0.09 moles of sodium sulfate in 12 ml of solution

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury