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meriva
2 years ago
15

Need Help!!! What else should I write?

Chemistry
1 answer:
alexira [117]2 years ago
4 0
You should write to make it a different way like with eye contact solution, laundry detergent, etc. You could also write to see if lotion would have an affect on the expandable-ness
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An experimental set up involves a cell with pumps that maintain high K+ and Cl- concentrations outside of the cell, and high Na+
nata0808 [166]

Explanation:

On one side , there is high concentration of potassium ion and chloride ions. And on other sides high concentration of sodium ions and phosphate ions.

[K^+][Cl^-]|[Na^+][PO_2^{-}]

Cell is permeable only to chloride ions.As we can see that chloride ions are only present on the outside of cell .

As we know solute particles move from higher concentration to lower concentration side that is to equalize the concentration of solute particles on both sides. So, chloride ion will move inside the cell until the concentration of chloride ions become equal on both the sides which will result in swelling up of cell.

8 0
3 years ago
El volumen de un gas en un recipiente cerrado es de 3.5 litros a una temperatura de 25oC y una atmósfera constante de presión. ¿
polet [3.4K]

Answer:

El volumen del gas en el recipiente es 3.29 L si se disminuye la temperatura a 7°C

Explanation:

La Ley de Charles es una ley de los gases que relaciona el volumen y la temperatura de una cierta cantidad de gas a presión constante.

Esta ley establece que el volumen es directamente proporcional a la temperatura del gas. Es decir que si la temperatura aumenta, el volumen del gas aumenta, mientras que si la temperatura del gas disminuye, el volumen disminuye.

Matemáticamente, si la cantidad de gas y la presión permanecen constantes, el cociente entre el volumen y la temperatura siempre tiene el mismo valor:

\frac{V}{T}=k

Suponiendo un cierto volumen de gas V1 que se encuentra a una temperatura T1 al comienzo del experimento, al variar el volumen de gas hasta un nuevo valor V2, entonces la temperatura cambiará a T2, y se cumplirá:

\frac{V1}{T1}=\frac{V2}{T2}

En este caso, sabes:

  • V1= 3.5 L
  • T1= 25 °C=298 °K (siendo 0°C=273°K)
  • V2=?
  • T2=7 °C=280 °K

Reemplazando:

\frac{3.5 L}{298 K}=\frac{V2}{280 K}

Y resolviendo obtienes:

V2=280 K*\frac{3.5 L}{298 K}

V2= 3.29 L

<u><em>El volumen del gas en el recipiente es 3.29 L si se disminuye la temperatura a 7°C</em></u>

5 0
2 years ago
Which of the following would result in a decrease in entropy?
Vika [28.1K]
The answer would be C
8 0
2 years ago
Complete and balance the molecular equation, including phases, for the reaction of aqueous sodium sulfate, Na2SO4, and aqueous b
expeople1 [14]
The complete chemical reaction of aqueous Sodium sulfate and aqueous Barium nitrate is

Na_{2}  SO_{4} (aq) + Ba(NO_3)_2(aq) -\ \textgreater \  BaSO_4(s) + 2NaNO_3(aq)

The right side and the left side of the reaction have equal number of elements, therefore it is balanced.

5 0
3 years ago
Read 2 more answers
Everything in the world is made of matter except you??<br><br> TrueFalse
katen-ka-za [31]

Answer:

False.

Explanation:

Humans are made of matter too :)

8 0
2 years ago
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