What approximate percentage of original money have left
Avogadro's number is big. If you had 6.02 x 1023 dollars, and could spend it at 1 billion (109) per second for your entire life (about 75 years), what approximate percentage of your original money would you have left?
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A reaction in water causes the water in beaker to cool from 25 degrees Celsius to 21 degrees Celsius. The volume of water 150ml (d=1.0g/ml). What is the heat absorbed by the reaction?
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
In Mel Brooks, Robin Hood: Mens in tights.• Explain how the artists utilize lighting in the scene. How does the lighting affect our emotional understanding of certain characters? What sort of mood does the lighting evoke? How does lighti
if the total amount of energy emitted by a carbon sample is 1.98x10^5 J, determine the number of carbon atoms present in the sample, assuming that each atom emits one photon
Design a process for the manufacture of 10^6 kg per year of mayonnaise. the shelf life of the product is expected to be 1 year.
Calculate the amount of heat transferred when 2.7 g of {rm Mg}({rm s}) reacts at constant pressure.
Suppose that after delivery several drops of the water cling to the inner wall of the pipet (because the pipet wall is dirty). How does this technique error affect the reported density of water?
Calculate the specific heat of a metallic element if 478 J of energy are needed to raise the temp. of a 82.73 g sample from 25.0 C to 50.0 C. what is the most likely identity of the element.
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