3 years ago

As thermal energy is added to the pigment, what is occurring

1 answer:

5 0

Answer: thermochromism, too hot of temperature or long exposure to high temperature may completely degrade the color of an object. In other instances, an object or sample changes to another shade of color until it stabilizes back to room temperature.

Explanation:

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Calculate the calories of heat required to melt 35.0 g of ice.

agasfer [191]

Answer:

35.0g of ice at 0 degrees

Explanation:

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3 years ago

Which of the following is an example of an endothermic process? (2 points) Gasoline burning in a combustion engine A chocolate b

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A chocolate bar melting in a hot car

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3 years ago

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Iii. A sound wave can be modelled by using a slinky spring. A wavelength in this model is...

OLga [1]

Answer: d. the distance between two rarefactions,

Explanation:

Wavelength is the distance between two identical adjacent points in a wave. This means that it is the distance between two adjacent compressions or two adjacent rarefactions.

Wavelengths are inversely related to frequency because the longer the wavelength, the less the number of wave cycles per second.

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3 years ago

What is the temperature of 0.750 mol of a gas stored in a 6,050 mL cylinder al 221 atm?

Rasek [7]

Answer:

T = 246 K

Explanation:

Given that,

Number of moles, n = 0.750 mol

The volume of the cylinder, V = 6850 mL = 6.85 L

Pressure of the gas, P = 2.21 atm

We need to find the temperature of the gas stored in the cylinder. We know that,

PV= nRT

Where

R is gas constant

T is temperature

So,

$T=\dfrac{PV}{nR}\\\\T=\dfrac{2.21\times 6.85}{0.75\times 0.0821}\\T=245.85\ K$

T = 246 K

So, the temperature of the gas is equal to 246 K.

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3 years ago

Electrons orbit the nucleus in specified energy

pashok25 [27]

Answer:

because the electron is a negatively charge and have high energy

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