Chemistry, 17.10.2021 03:50 mtmtcow1122
Tính pH của dung dịch acid H2S 0,02 mol/L, cho pKa từng nấc của H2S lần lượt là 7,04 và 14,92
Answers: 1
Chemistry, 21.06.2019 22:30
Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density
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Chemistry, 22.06.2019 19:00
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
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Chemistry, 22.06.2019 22:30
The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)
Answers: 2
Tính pH của dung dịch acid H2S 0,02 mol/L, cho pKa từng nấc của H2S lần lượt là 7,04 và 14,92...
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