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Natalka [10]
3 years ago
8

Why is a very small amount of cerium oxide nanoparticles need: A) the nanoparticles are elements

Chemistry
1 answer:
irina [24]3 years ago
7 0
Have a high suface area to volume ratio
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En que se fundamento Moseley para describir la tabla periódica actual?
Burka [1]

Answer:

La tabla periódica de moseley fue una manera de dar solución a esta problemática, ya que nos permite tener a la mano todos los elementos que se han descubierto hasta la actualidad y sus propiedades químicas más resaltantes.

A continuación se Describe una linea del tiempo de la creación de la tabla periodica:

1820 -  se crean las tríadas de Dobereiner.  

1863 - se crea el cilindro de chancourtois.  

1864 - se crean las octavas de newlands.  

1869 - se crea el primer prototipo de la tabla periódica.  

1914 - se fórmula la ley periódica moderna por Moseley.

Explanation:

4 0
3 years ago
Need help with these two, solve only the ones you can though :D
ad-work [718]

Answer: 27 is A and 28 is C.

Explanation: I’ll explain 28 but not 27 because that’s just definitions.

In CuSO4 there is a Cu, an S, and 4 O molecules. Add them up you get 6.

7 0
2 years ago
Which compound is an example of an amino acid?
nikdorinn [45]
Hi, the answer is a. glycine. hope i helped!
5 0
3 years ago
Read 2 more answers
Classify the following as either an element, compound, homogeneous mixture or
Alecsey [184]

Sodium chloride is the chemical name for salt and is composed of sodium and chlorine, so it is a compound.

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Which statement best describes electrons?(1) They are positive subatomic particles and are found in the nucleus.(2) They are pos
Anton [14]
The answer should be (4) they are negative subatomic particles and are found surrounding the nucleus. The nucleus is formed by neutrons and protons. Neutrons are neutral and protons are positive.
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