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solmaris [256]
3 years ago
6

Hola tengo un examen, no es necesario que me den todas las respuestas pero me seria de gran ayuda si me respondieran las que sep

an
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 átomos 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 ácido sulfúrico H2SO4 (Masas H:1,0 S: 32,01; O: 16,0). ¿Cuál es su masa molar?
opciones:
98 Kg/mol
98 gr/mol
98 g/mol

Cuántos átomos 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)

Sabrías decir el número de moles de átomos de carbono en 513 g de C12H22O11 (Masa molar de C12H22O11: 342 g)
17 mol de átomo de C.
16 mol de átomo de C.
18 mol de átomo de C.

Ncesito ayuda no entiendo :( de verdad estaria agradecido si me ayudan
Biology
1 answer:
Verdich [7]3 years ago
6 0
Answer//
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Eggs and sperm are examples of _____?
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reproduction........

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7 0
3 years ago
The organelles in a plant cell are labeled. Part A is a large hollow structure at the center of the cell. Part B is a leaf-shape
Anon25 [30]

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F is first

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got this before and it was right from the order I chose

8 0
3 years ago
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22. In an active state of a G protein,
Umnica [9.8K]

Answer:

The correct option is B  

Explanation:

The alpha and beta-gamma subunits both can bind to target  proteins. Once a G protein becomes active, its alpha subunit and beta-gamma dimer both have the ability to pass on messages in the cell via connecting or binding with other membrane proteins that are involved in the transduction of signals. In this light, B is the best option.

6 0
3 years ago
Which features do all new rocks formed near an oceanic ridge share? Check all that apply.
slega [8]

Answer:

Options (1), (2), (3) and (4)

Explanation:

Mid oceanic ridge is the region along the spreading of the sea floor occurs. Along this ridge, the magma come out to the surface, and lava forms<u> pillow shaped rocks such as pillow basalt</u>. Basalt is the dominant rock type in the oceanic crust.

There occurs<u> striped patterns that are oriented parallel mid oceanic ridge</u>, and this strips depicts the magnetic field of the earth, and it keeps on changing on each eruption of this magma beneath the ocean long this ridge.

The mid oceanic ridge suggests the <u>spreading of the sea floor</u> and the rocks present at this ridge are younger than the rocks that are away from the ridge.

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Hence, the correct answers are options (1), (2), (3) and (4).

4 0
3 years ago
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