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About 25 of the 92 natural elements are known to be essential to life. which four of these 25 elements make up approximately 96% of living matter? a. carb
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If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?
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What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%
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Chemistry, 22.06.2019 11:00
As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
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Chemistry, 22.06.2019 14:00
Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20βc. what is the molar mass of this gas?
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About 25 of the 92 natural elements are known to be essential to life. which four of these 25 elemen...
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