Calculate the total energy, in kilo-joules, that is needed to turn a 55 g block of ice at 0 degrees C into water vapor at 135 degrees C? Show your work.

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases