Does the percentage of oxygen in the air decrease as altitude increases
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Chemistry, 22.06.2019 10:10
When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —
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Chemistry, 23.06.2019 10:30
Chemical bonds result from the interaction of the from two or more atoms. a. protons b. electrons c. neutrons d. nuclei
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Chemistry, 23.06.2019 12:30
)a children’s liquid cold medicine has a density of 1.23 g/ml. if a child is to take 2.5 tsp in a dose, what is the mass in grams of this dose? (1 tsp = 5 ml)
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