The heat of vaporization of water is 2260 J/g. How much heat does it take to boil away 500 mL of water at 100C? (remember water 1g= 1mL that's how the mL was defined)

What is the composition, in atom percent, of an alloy that consists of 4.5 wt% pb and 95.5 wt% sn? the atomic weights for pb and sn are 207.19 g/mol and 118.71 g/mol, respectively.(a) 2.6 at% pb and 97.4 at% sn(b) 7.6 at% pb and 92.4 at% sn(c)97.4 at% pb and 2.6 at% sn(d) 92.4 at% pb and 7.6 at% sn

What are transitions between a liquid and a solid called? identify which way they are transitioning

What is the polyatamic ion of borate