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Chemistry, 22.06.2019 19:00
Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
Answers: 1
Chemistry, 23.06.2019 22:50
Enough of a monoprotic acid is dissolved in water to produce a 0.0142 m solution. the ph of the resulting solution is 2.58. calculate the ka for the acid.
Answers: 1
Chemistry, 23.06.2019 23:30
What mass of propane is necessary to react with the amount of oxygen calculated in the previous question? g c3h8
Answers: 1
Which row in the table shows how many electrons there could be in the outer shell of an atom of V?...
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