a chemist burns 100.0 g of chromium in excess oxygen. there's only one product, and it has a mass of 192.31 g. what is the empirical formula of the product?

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

Strong conductivity of plasma allows it to act and react as and

What is a property of a double replacement reaction