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Chemistry, 21.06.2019 18:00
Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you
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Embryos of different species look very similar, which shows that the organisms share a ancestor.
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What is the percentage of hydrogen in nitrogen trihydride
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Chemistry, 22.06.2019 14:00
Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *
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36g of an alloy of copper and zinc contains 45% copper. how much pure copper do you need to add in o...
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