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2 years ago

What does Le Châtelier's principle say about upsetting a system at

Chemistry

2 answers:

juin [17]2 years ago

8 0

Answer:

Explanation:

A system whose equilibrium has been upset will shift to restore

equilibrium.

sveta [45]2 years ago

6 0

Answer:

D. A system will not be able to restore equilibrium if conditions are

changed.

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What is the concentration of a solution that is 0.25 moles of HCL added to 3.00L of water?

Lina20 [59]

Answer: 0.08 M

Explanation:

$\text{molarity}=\frac{\text{moles of solute}}{\text{liters of solution}}\\\\\text{molarity}=\frac{0.25}{3.00}\\\\\text{molarity}=\boxed{0.08 \text{ M}}$

3 0

1 year ago

The cubic centimeter (cm3) is a measurement of which of the following quantities? Density

Murljashka [212]

(cm3) is a commonly used unit of volume that extends the derived SI-unit cubic metre, and corresponds to the volume of a cube that measures 1 cm × 1 cm × 1 cm.

so the answer is volume

8 0

2 years ago

The tallest mast in the world is the KTHI-TVmast in Branchard, which measures 2063 feet , what is the expressed in meter?

Amanda [17]

1ft=.3048meter

So if we have 2063ft and want it in meters we just do a simple unit conversion.

(2063ft)(.3048meters/1ft)=628.8meters. Here ft cancel out and leave us with meter units.

Any questions please feel free to ask. Thank you.

8 0

3 years ago

Name one manufactured device or natural phenomenon that emits electromagnetic radiation in each of the following wavelengths: ra

Bas_tet [7]

Radio - Radio station transmits radio wavelength which is received by the
Radio.

Microwaves - Microwave Oven to heat up foods. 

IR (infrared) - TV remote Control, to transmit IR light to a sensor in the TV so it can do some functions like increasing the volume, changing the channel etc. 

Visible light - Sunlight or Light Bulbs 

Ultraviolet - UV Lamps for sun tan, for detecting forged money 

X-rays - Chest X-ray machines, Backscatter Xray (body scanner in airport security)

Gamma rays - Gamma rays Medical Equipment which are used to kill cancer cells, to sterilize medical equipment

7 0

3 years ago

The density of a pure liquid at 25 degrees Celsius was calculated by determining the mass and volume of a sample of the liquid.

adelina 88 [10]

Answer

The density of the liquid is 0.82 g/mL.

Explanation:

From the question given above, the following data were obtained:

Mass of empty flask = 18.990 g

Mass of flask + liquid = 39.439 g

Volume of liquid = 25 mL

Density of liquid =..?

Next, we shall determine the mass of the liquid. This can be obtained as follow:

Mass of empty flask = 18.990 g

Mass of flask + liquid = 39.439 g

Mass of liquid =.?

Mass of liquid = (Mass of flask + liquid) – (Mass of empty flask)

Mass of liquid = 39.439 – 18.990

Mass of liquid = 20.503 g

Finally, we shall determine the density of the liquid as follow:

Mass of liquid = 20.503 g

Volume of liquid = 25 mL

Density of liquid =..?

Density = mass / volume

Density of liquid = 20.503 / 25

Density of liquid = 0.82 g/mL

8 0

3 years ago