Chemistry, 18.06.2021 21:10 SoccerHalo
How many moles of oxygen molecules are there in 24 dm3 of air at r. t.p.? Assume air is 20% oxygen?
What mass of sodium hydroxide is there in 35 cm3 of a 2 mol / dm3 solution of sodium hydroxide?
How many oxygen atoms are there in 4.9 g of H2SO4?
plz answer these, it's so important!!
Answers: 1
Chemistry, 22.06.2019 04:50, aletadaboss
Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?
Answers: 1
Chemistry, 22.06.2019 12:30, ethanw8973
If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?
Answers: 3
Chemistry, 22.06.2019 12:30, quantamagic
Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)
Answers: 1
How many moles of oxygen molecules are there in 24 dm3 of air at r. t.p.? Assume air is 20% oxygen?...
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