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crimeas [40]
2 years ago
5

Someone help me please i’ll give brainly

Chemistry
2 answers:
dimaraw [331]2 years ago
7 0

Highest to lowest energy : plasma, gas, liquids, solids

Nitella [24]2 years ago
4 0

Answer:

solid

liquid

Gas

plasma

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The half-life of radium-226 is 1590 years. if a sample contains 100 mg, how many mg will remain after 1000 years?
Katyanochek1 [597]

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a=64.7mg

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Hello,

In this case, we need to remember that for the required time for a radioactive nuclide as radium-226 to decrease to one half its initial amount we are talking about its half-life. Furthermore, the amount of remaining radioactive material as a function of the half-lives is computed as follows:

a=a_0(\frac{1}{2} )^{\frac{t}{t_{1/2}} }

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a=100mg(\frac{1}{2} )^{\frac{1000years}{1590years} }\\\\a=64.7mg

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4 0
3 years ago
How many significant digits are in 89015
Lilit [14]

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6 0
3 years ago
WHOEVER CAN HELP MEEEEE SAY "I" AND I WILL GIV U MANY MANY POINTS, THANKS, BRAINLIEST!!!! PLSSSSSSSSS
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2 years ago
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