Biology, 04.06.2020 18:57, wavymoney77yt
Hola tengo un examen, no es necesario que me den todas las respuestas pero me seria de gran ayuda si me respondieran las que sepan
Calcula la cantidad de gramos que hay en 12,5 mol de NaCl (Masa Na: 23,0; Cl: 35,5)
Opciones:
737,5 g de NaC
737,5 gr de NaC
738,5 g de NaC
Determinar la cantidad de moles y Γ‘tomos de Calcio que hay en 120 g de Ca. (Masas Ca:40)
opciones:
3 mol de Ca y 1,8066 x 10^24
3 mol de Ca y 1,8065 x 10^24
3 mol de Ca y 1,8067 x 10^24
Para el Γ‘cido sulfΓΊrico H2SO4 (Masas H:1,0 S: 32,01; O: 16,0). ΒΏCuΓ‘l es su masa molar?
opciones:
98 Kg/mol
98 gr/mol
98 g/mol
CuΓ‘ntos Γ‘tomos de Magnesio (Mg) hay 52 g de este (Masa Mg: 24,31)?
opciones:
12.89 x 10^23 (4 puntos)
12.88 x 10^23 (4 puntos)
12.88 x 10^24 (4 puntos)
SabrΓas decir el nΓΊmero de moles de Γ‘tomos de carbono en 513 g de C12H22O11 (Masa molar de C12H22O11: 342 g)
17 mol de Γ‘tomo de C.
16 mol de Γ‘tomo de C.
18 mol de Γ‘tomo de C.
Ncesito ayuda no entiendo :( de verdad estaria agradecido si me ayudan
Answers: 1
Biology, 21.06.2019 22:30, maddison788
Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into
Answers: 1
Biology, 22.06.2019 03:30, masonorourke
Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae
Answers: 2
Biology, 22.06.2019 06:30, DwayneLeonard618
Study the picture of the ocean. which is the best example of an organismβs niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.
Answers: 2
Biology, 22.06.2019 13:00, mallorywoods8
Astudent completed a lab report. which correctly describes the difference between the "question" and "hypothesis' sections of her report? "question states what she is asking, and "hypothesis" states the result of her experiment "question" states what she is asking, and "hypothesis" states what she thinks the answer to that question is in 'if. then because" format. "question" describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. "question" describes what she is trying to find out, and "hypothesis" states any additional information or prior knowledge about the question
Answers: 1
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