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eduard
3 years ago
10

Write this numeral in scientific notation. 820.5

Chemistry
1 answer:
Viefleur [7K]3 years ago
6 0
The numeral in scientific notation would be 8.205x10^-2
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Help me answer this please
Vlada [557]
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I hope this helps!
8 0
3 years ago
A 143.1 g sample of a compound contains 53.4 g of carbon, 16.9 g of hydrogen, 43 g of nitrogen, and some amount of oxygen. what
nika2105 [10]
I'm fairly sure this is it 20.82%
6 0
3 years ago
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Which expression is equal to the number of grams in 2.43 kilograms
KiRa [710]
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3 0
3 years ago
Please Help!!<br><br> How does alpha decay change the nucleus of radioactive atom.
cluponka [151]

Answer:

When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4  and atomic number 2 less than the starting atom.

Explanation:

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Properties of alpha radiation:

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These radiations can not penetrate into the skin or clothes.

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These radiations can be stopped by a piece of paper.

₉₂U²³⁸   →   ₉₀Th²³⁴  + ₂He⁴  + energy

5 0
3 years ago
the s and p sublevels of an atom of an element in period 3 are filled with electrons. Which orbitals are filled in this atom?
7nadin3 [17]
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so level 3,
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7 0
3 years ago
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