19. an exchange student to the planet zook visits a chemistry class. a number of students are conscientiously working
on a project. as he watches their progress he overhears a request for 18 zooms of a material that is obviously
platinum. the visitor wonders what the equivalent weight would be in grams, so he pulls out a book of conversion
factors and finds the following:
a. 9 woofs= 1 gram
b. 2 zings = 7 warps
c. 8 woofs = 3 warps
d. 4 zooms = 3 zings

a) what mass (in grams) was asked for? (you must use dimensional analysis, assume the whole numbers do not count
towards sig figs - they are exact)
b.) at $700.00 dollars per ounce, what would it have cost on earth? (1 g = 0.03527 oz)

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.

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =