Chemistry, 08.12.2021 18:30 tadvet1633
In which time period did the first animals that could live both in water and on land appear
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Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
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Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.
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1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
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In which time period did the first animals that could live both in water and on land appear...
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