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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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Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
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If two atoms are bonded to a central atom with no lone pairs,how will they be arranged
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Chemistry, 22.06.2019 14:30
Calculate the mass of carbon in 97.0 g of sucrose c12h22o11
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are a result of hurricanes, which push massive amounts of water inland,
causing severe damage.
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