The molar heat of vaporization of water is 40.7 kl/mol. how much heat must be absorbed to convert 50.0 grams of liquid water at 100 degrees celsius?
a) 1.46 x 10kl
b) 1.13 x 10^2 kl
c) 2.04 x 10^3 kl
d) 3.66 x 10^4 kl

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

How many grams of mgbr2 are needed to produce 75g or metal?