How many moles of sodium chloride (nacl) solute are in 155 grams of an 85.5 percent by mass solution?

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

In a ball-and-stick molecular model, what do the sticks represent?