You need to find the abundance. Then, multiply the abundance by 100, and add that to the mass for each isotope. Basically, for each isotope, take the percentage abundance and add it to the mass. Multiply each calculation of these together to get your average atomic mass,
Correct answer: C) 3 eggs
The given recipe for preparing 100 brownies,
6 eggs + 5 cups flour + 2 sticks butter ----> 100 brownies
Assuming the number of each starting material/ product as the moles of each reactant/product. The mole ratios of the different reactants and product is:
;
;
We would need the mole ratio of eggs/brownies in order to find out the number of eggs required to prepare 50 brownies.

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Yes, Pluto is a part of the Milky Galaxy. Pluto is a part of our local solar system, and our solar system is in the Milky Way Galaxy.
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