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Juli2301 [7.4K]
3 years ago
12

Which is the electron configuration for lithium? o 15² o 253 1822s1 O 151252

Chemistry
1 answer:
kompoz [17]3 years ago
5 0

Answer:

Explanation:

the atomic number of lithium is 3 thats why the electronic configuration of lithium is 1s2,2s1

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¿Cómo afectaría la velocidad de una reacción si se enfría lentamente la mezcla de los reactivos? AYUDA
hodyreva [135]

Answer:

La velocidad de reacción se ralentizará más rápidamente de lo habitual.

Explanation:

Dado que los factores que influyen en la velocidad de una reacción química son;

1) Temperatura de la mezcla reaccionante

2) Concentración (para líquidos) y área superficial de presión (para gases) (para sólidos) de los reactivos

3) catalizador

4) Reactantes naturaleza

5) Orientación de las moléculas reactivas reactivas

Tenemos que, específicamente, disminuir la temperatura del reactivo disminuye la probabilidad de que las moléculas de los reactivos involucrados en colisiones dentro de la mezcla tengan suficiente energía (que es igual o mayor que la energía de activación, Ea) para que la reacción se complete . Es decir, habrá una disminución en las colisiones efectivas (colisiones que provocan una reacción) y la reacción se ralentizará.

Dado que la velocidad de reacción se ralentiza con el tiempo, los reactivos de enfriamiento lento ralentizan rápidamente la reacción.

8 0
4 years ago
The diffusion of substances within a solution tends to move those substances ________ their ________ gradient.
guajiro [1.7K]

What is diffusion?

The diffusion of substances within a solution tends to move those substances <u>down</u> their <u>concentration</u> gradient.

Aim of diffusion:

The movement of molecules along a concentration gradient is known as diffusion. It is a significant process that all living things go through. Diffusion facilitates the flow of materials into and out of cells. Until the concentration is the same everywhere, the molecules travel from a location of higher concentration to a region of lower concentration.

Diffusion occurs in gases and liquids because random molecular movement is possible.

Types of diffusion:

Simple diffusion and facilitated diffusion are the two primary categories of diffusion.

  • Simple diffusion: An action where the substance passes across a semipermeable barrier or solution without the aid of transport proteins. For instance, bacteria use simple diffusion to transport minute nutrients, water, and oxygen into the cytoplasm.
  • Facilitated diffusion: It is the passive transfer of molecules from the area of higher concentration to the area of lower concentration across the cell membrane using a carrier molecule.

The main aim of diffusion is to arrive at an equilibrium state. When the amount of the particles is uniformly distributed or constant throughout a solution, it is said to be in equilibrium.

Learn more about diffusion here,

brainly.com/question/14852229

#SPJ4

3 0
2 years ago
Which three elements affect air pressure?
Sloan [31]
A sorry if it’s wrong good luck
8 0
3 years ago
Please help please help
otez555 [7]

Answer:

The mass percentage of chlorine is 60.66 % chlorine in the compound sodium chloride.

Explanation:

3 0
3 years ago
Considering the activity series given below for metals and nonmetals, which reaction will occur?
kozerog [31]

Answer:

the answer is C i just took the test

Explanation:

2AgNO3 + Ni Right arrow. Ni(NO3)2 + 2Ag

5 0
4 years ago
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