How are percent mass calculations used?
a.
they are used for determining concentrations in solutions and water of hydration
c.
they are used for determining water of hydration and the combustion analysis of hydrocarbons
b.
they are used for determining molecular purity and concentration in solutions
d.
none of the above

What is the total reduction potential of a cell in which potassium (k) is reduced and copper (cu) is oxidized? a. 2.59 v b. 3.27 v c. -3.27 v d.-2.59 v

Explain which atom l or m is more stable and why

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.