Chemistry, 11.03.2021 14:00 kenziekey831
Considere a seguinte atividade realizada num laboratório de química em que uma solução A torna carmim a fenolftaleína. Quando se adiciona à solução A uma solução B incolor, desaparece a cor carmim. Selecione a opção correta: *
Answers: 1
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
Chemistry, 23.06.2019 00:30
Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. sodium fluoride, naf octane, c8h18 propanol, ch3ch2ch2oh potassium iodide, ki benzene, c6h6
Answers: 1
Chemistry, 23.06.2019 05:30
How many moles are in 1.26*10^24 particles in significant figures
Answers: 2
Chemistry, 23.06.2019 17:30
Which of the following elements would you expect to have the highest ionization energy value, and why? a. chlorine (cl), because it has a low effective nuclear charge and large radius b. fluorine (f), because it has a large radius and naturally forms a negative ion c. lithium (li), because it has a small radius and naturally forms a positive ion d. neon (ne), because it has a high effective nuclear charge and small radius
Answers: 2
Considere a seguinte atividade realizada num laboratório de química em que uma solução A torna carmi...
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