Chemistry, 28.05.2021 01:50 shawnaelvaughns
Uma indústria possui dois cilindros idênticos, os quais estão nas mesmas condições de temperatura (27ºC) e pressão (1atm) e contêm o mesmo volume de gases, sendo que um está preenchido com gás hélio e o outro com gás neônio, ambos puros. Considerando que o cilindro com gás hélio tem 1,6 gramas desse gás, pela hipótese de Avogadro, o cilindro do gás neônio deverá conter, em gramas massa de gás igual a:
Answers: 2
Chemistry, 22.06.2019 21:50
Given the data below for the reaction, 2 a + 2 b + 4 c => d + e + 3 f, the reaction is fill in the [ ] order in a, fill in the [ ] order in b, fill in the [ ] order in c and fill in the [ ] order overall. (use the words "first, second, third, fourth" to fill each blank)experimentinitial conc of a, mol/l initial conc of b, mol/l initial conc of c, mol/l initial rate, mol/l.s1 0.1 0.1 0.2 2 x 10-32 0.2 0.3 0.2 6 x 10-33 0.3 0.1 0.2 2 x 10-34 0.4 0.3 0.4 1.2 x 10-2
Answers: 2
Chemistry, 23.06.2019 01:00
Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.
Answers: 1
Chemistry, 23.06.2019 01:30
Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature
Answers: 1
Uma indústria possui dois cilindros idênticos, os quais estão nas mesmas condições de temperatura (2...
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