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Chemistry, 22.06.2019 15:30
Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium
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If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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Chemistry, 23.06.2019 04:31
What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3
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Chemistry, 23.06.2019 13:00
What type of reaction is this equation c2h5s + o2 > co2 + h2o + so2
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Complete each question.
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You found a rock on the earth that has the mass of 150 kilog...
You found a rock on the earth that has the mass of 150 kilog...
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