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Serga [27]
2 years ago
8

Where light is hitting an object

Chemistry
1 answer:
tiny-mole [99]2 years ago
3 0
When lights hits an object, the light either get absorbed, reflected or refracted
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How is heat produced in a chemical change​
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Answer:Hola UwU

Most chemical reactions involve the breaking and formation of chemical bonds. It takes energy to break a chemical bond but energy is released when chemical bonds are formed. If more energy is released than consumed, then the chemical reaction evolves heat and is said to be exothermic.

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Chemicals that are able to slow or stop the reaction rate are inhibitors. reactants. products. catalysts.
erma4kov [3.2K]

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A radioactive material, with half-life of six months, has 100 thousand unstable nuclei.
goldfiish [28.3K]

Answer:

See Explanation

Explanation:

Given that;

N/No = (1/2)^t/t1/2

Where;

No = amount of radioactive isotope originally present

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t = time taken

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N/1000=(1/2)^0.5

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Hence;

A=Aoe^-kt

Where;

A = Activity after a time t

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k = decay constant

t = time taken

A = Aoe^-3 *0.1155

A=Aoe^-0.3465

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3 years ago
Dating of Rock Layers
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Explanation:

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