What is the amount of heat absorbed when the temperature of 75 grams of water increases from 20.°C to 35°C?
1100j
4700j
6300j
11.000j

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.

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

How manyatoms of mercury are in 1.4214e+1 ml sample