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3 years ago

What will I benefit or what will I gain if I know the absorbance and emission of any substance?

Chemistry

2 answers:

Over [174]3 years ago

6 0

Answer:

You would gain science knowledge, like if you wanted a science career this is more-than-likely something you would have to learn.

Emission and Absorbance of substances:

-Emission is the process where a substance gives off or emits radiation when it is heated or treated chemically. The level of emission of a substance depends on its spectroscopic composition and temperature.

-Absorption is the process where the electrons of a substance absorb or take up the energy wavelengths incident on them.

enot [183]3 years ago

5 0

You will gain more knowledge and it will be for your own good

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a person drinks eight glasses of water each day, if each glass contains 300mL how many liters of water does a person drink in a

TiliK225 [7]

The person drinks 328500 ml or 328.5 liters of water in a year.

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4 years ago

Question 5<br> Where does cellular respiration occur?

wolverine [178]

Answer:

Cellular respiration occurs in both , with most reactions taking place in the cytoplasm of prokaryotes and in the mitochondria of eukaryotes. There are three main stages of cellular respiration: glycolysis, the citric acid cycle, and electron transport/oxidative phosphorylation.

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3 years ago

4. A student started with a 0.032 g sample of copper which he took through the series of reactions described in this experiment.

Elodia [21]

Answer:

$Y=48.6\%$

Explanation:

Hello,

In this case, we can consider the following chemical reaction for the oxidation of copper which only occurs at high temperatures:

$2Cu+O_2\rightarrow 2CuO$

In such a way, for 0.032 grams of copper, the following grams of copper (II) oxide (black product) are yielded:

$m_{CuO}=0.032gCu*\frac{1molCu}{63.546gCu} *\frac{2molCuO}{2molCu}*\frac{79.546gCuO}{1molCuO} =0.078gCuO$

Therefore, the percent yield is:

$Y=\frac{0.038g}{0.078g}*100\%\\ \\Y=48.6\%$

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3 years ago

A prairie dog runs into its burrow as a coyote approaches.This behavior helps the prairie dog

Nookie1986 [14]

This behavior helps the prairie dog from being prey upon by coyote.
Prairie dogs live in burrow and they normally do not move much away from their burrows. When they sense danger they will dash quickly back into their burrows. This behavioral adaptation protect them from predators.

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4 years ago

What does the mass of an object depend on?

Svetllana [295]

Answer:

D or the 4th one

Explanation:

mass is literally the measure of matter in an object which is essentially the weight or how much stuff there is.

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3 years ago

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