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If each Halloween snack-sized candy bar is 15 g, how many Calories are consumed once you polish off a handful (6 candy bars) of Trick-or-Treating loot? (1 Calorie = 1 kcal)
Write an equation for the formation of NH3g from its elements in its standard states.
A quantity of N2 occupies 62.2 L at a particular temperature and pressure. Its density is 0.900 g/L. How many moles of N2 are in the container?
Alka-Seltzer contains both baking soda (NaHCO3) and citric acid (H3C6H5O7). The reaction between the bicarbonate ion and citric acid produces water
The cup is a volume widely used by cooks in the U.S. One cup is equivalent to 225 cm3. If 1 cup of olive oil has a mass of 205 g, what is the density of olive oil in g/cm3?
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 6.0 g of silver plating.
What is the density of lead (in ) if a rectangular bar measuring 0.50 in height, 1.55 in width, and 25.00 in length has a mass of 219.5 ?
Hydrogen has an electronegativity value between boron and carbon and identical to phosphorus. With this in mind, rank the following bonds in order of polarity with 1 being the most polar and 5 being the least polar.
Which of the following has only a single peak in the proton NMR spectrum
Zinc is used to make galvanized iron pipes. These pipes are protected from the rust reactions that would normally occur. Which statement best explains why zinc is used
Suppose that the microwave radiation has a wavelength of 12.4cm . How many photons are required to heat 275mL of coffee from 25.0 ?C to 62.0 ?C?
what is the pH of a solution made by mixing 30.00mL of .10M acetic acid with 40.00 mL 0f .10M KOH? Assume the volumes are additive and Ka=1.8*10^-5 for CH3CO2H
Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag. Calculate the value of w (work) for the following system if 11.8 g of NaN3 reacts completely at 1.00 atm and 22 °C.
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