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Bad White [126]
3 years ago
7

If you have 10g of Fe and 20 g of oxygen, how much product will you have?

Chemistry
1 answer:
ddd [48]3 years ago
3 0

Answer:

20 grams of methamphetamine

Explanation:

You might be interested in
The atomic weight of copper is 63.546 amu. The two naturally occuring isotopes of copper have the following masses 63Cu, 62.9298
strojnjashka [21]

Answer:

The percent isotopic abundance of Cu-65 is 30.79 %.

The percent isotopic abundance of Cu-63 is 69.21 %.

Explanation:

we know there are two naturally occurring isotopes of carbon, Cu-63 (62.9298 amu)  and Cu-65 (64.9278 amu)

First of all we will set the fraction for both isotopes

X for the isotopes having mass 62.9298 amu

1-x for isotopes having mass 64.9278 amu

The average atomic mass of copper is 63.546 amu.

we will use the following equation,

62.9298 x + 64.9278 (1-x) = 63.546

62.9298x +  64.9278 -  64.9278x = 63.546

62.9298x - 64.9278x = 63.546  - 64.9278

-1.998 x = -1.3828

x=-1.3828 / -1.998

x= 0.6921

0.6921 × 100 = 69.21 %

69.21 % is abundance of Cu-63 because we solve the fraction x.

now we will calculate the abundance of Cu-65.

(1-x)

1-0.6921 = 0.3079

0.3079 × 100 = 30.79 %

30.79 % for Cu-65.

6 0
3 years ago
Cuando realizamos la "Estructura de
sergeinik [125]

Answer:

Electrones de valencia.

Explanation:

¡Hola!

En este caso, dado en química se conocen las estructuras de Lewis como representaciones gráficas de como los elementos están enlazados entre sí, debemos tener en cuenta que estos enlaces se forman entre los electrones de valenciam, los cuales son utilizados para su representación. Se sabe que los electrones de valencia son representados con puntos alrededor del elemento a través de puntos que se unen entre sí y son el número de electrons en la capa más externa de los elementos en cuestión; por ejemplo, cloro tiene 7 electrones de valencia, azufre tiene 6, hidrogeno 1, carbono 4 y así sucesivamente.

¡Saludos!

3 0
3 years ago
What is the importance of validity
finlep [7]

Answer:

validity is the extent to which a test measures what it claims to measure. It is vital for a test to be valid in order for the results to be accurately applied and interpreted.

Explanation:

Validity is important because it can help determine what types of tests to use, and help to make sure researchers are using methods that are not only ethical, and cost-effective, but also a method that truly measures the idea or constructs in question.

3 0
3 years ago
1. La densidad de CCl4 (tetracloruro de carbono) es 1,58. g/mL.
Andre45 [30]

Answer:

La respuesta es

<h2>158 g</h2>

Explanation:

La masa de una sustancia cuando se le da la densidad y el volumen se puede encontrar usando la fórmula

<h3>masa = Densidad × volumen</h3>

De la pregunta

volumen = 100 mL

densidad = 1.58 g/mL

La masa de sustancia es

masa = 100 × 1.58

Tenemos la respuesta final como

<h3>158 g</h3>

Espero que esto te ayude

6 0
4 years ago
What law states that energy is never created or destroyed?​
LekaFEV [45]
D. the law of conservation of energy
8 0
3 years ago
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