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2 years ago

Is the salt solution in the DeadSea dilute, concentrated orsaturated? Explain.

1 answer:

5 0

The waters of the Dead Sea are extremely saline, and, generally, the concentration of salt increases toward the lake's bottom. ... The deep water was saturated with sodium chloride , which precipitated to the bottom.

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Name three sources of atmospheric carbon dioxide.

quester [9]

The answer is decomposition, ocean release and respiration. hope this helps u :D

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2 years ago

Which statement is true of a chemical change? (Plato)

OleMash [197]

Answer:

Explanation:

The answer A is the best answer because it contains the most general characteristic of a chemical change.

5 0

3 years ago

Read 2 more answers

12. A helium-filled weather balloon has a volume of 2.4 x 102 L at 99 kPa pressure and a

Luba_88 [7]

Answer:

The answer to your question is 8.74 g of He

Explanation:

Data

V = 2.4 x 10² L

P = 99 kPa

T = 0°C

mass = ?

Process

1.- Convert kPa to atm

P = 99 kPa = 99000 Pa

1 atm --------------- 101325 Pa

x --------------- 99000 Pa

x = (99000 x 1) / 101325

x = 0.977 atm

2.- Convert temperature to °K

°K = 273 + 0

°K = 273

3.- Substitution

PV = nRT

- Solve for n

n = PV / RT

n = (0.977)(2.4 x 10²) / (0.082)(273)

n = 24.48 / 22.386

n = 1.093 moles

4.- Calculate the grams of He

8 g -------------------- 1 mol

x -------------------- 1.093 moles

x = (1.093 x 8) / 1

x = 8.74 g

6 0

3 years ago

Read 2 more answers

Can you help please??

hram777 [196]

Answer:

Explanation:

7 0

2 years ago

Read 2 more answers

How many 3-liter balloons could the 12-L helium tank pressurized to 160 atm fill? Keep in mind that an "exhausted" helium tank i

vaieri [72.5K]

Answer:

The 12L helium tank pressurized to 160 atm will fill 636 3-liter balloons

Explanation:

It is possible to answer this question using Boyle's law:

$P_1V_1=P_2V_2$

Where P₁ is the pressure of the tank (160atm), V₁ is the volume of the tank (12L), P₂ is the pressure of the balloons (1atm, atmospheric pressure) And V₂ is the volume this gas will occupy at 1 atm, thus:

160atm×12L = 1atm×V₂

V₂ = 1920L

As the tank will never be empty, the volume of the gas able to fill balloons is the total volume minus 12L, thus the volume of helium able to fill balloons is:

1920L - 12L = 1908L

1908L will fill:

1908L× $\frac{1balloon}{3L}$ = 636 balloons

I hope it helps!

7 0

3 years ago

Is the salt solution in the DeadSea dilute, concentrated orsaturated? Explain.​

Is the salt solution in the DeadSea dilute, concentrated orsaturated? Explain.