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Chemistry, 21.06.2019 23:00
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
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Chemistry, 22.06.2019 02:30
Based on the equation and the information in the table, what is the enthalpy of the reaction?
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Chemistry, 22.06.2019 07:30
All cells are made of four types of acids, lipids, proteins, and carbohydrates.
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Chemistry, 22.06.2019 12:30
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
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