Answers: 1
Chemistry, 20.06.2019 18:02
When undergoing chemical reactions where does the reactant combine to the enzyme?
Answers: 1
Chemistry, 21.06.2019 23:00
City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8Γ’Β° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was Γ’β3Γ’Β° c. what was the temperature of city a and city b on that day? city a was 5Γ’Β° c, and city b was 4Γ’Β° c. city a was 3Γ’Β° c, and city b was Γ’β1Γ’Β° c. city a was 8Γ’Β° c, and city b was Γ’β3Γ’Β° c. city a was 5Γ’Β° c, and city b was Γ’β5Γ’Β° c.
Answers: 2
Chemistry, 22.06.2019 03:40
Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)
Answers: 3
Chemistry, 22.06.2019 14:30
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)β2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2
Answers: 3
How do arrange the periodic table in groups...
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