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Pani-rosa [81]
3 years ago
8

Why are atoms of carbon-14(C-14) unstable?

Chemistry
1 answer:
vfiekz [6]3 years ago
3 0
They are a radioactive form of carbon, they are bad bc they have too many neutrons for its six protons, making it unstable
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Is it C???
9966 [12]
The right answer is indeed letter c

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Make the following conversion. 0.075 m = _____ cm 7.5 75 0.0075 0.00075
GaryK [48]
In the given question we need to convert 0.075 meter into centimeter. For this purpose we need to know the relation between meter and centimeter. Then only this problem can be solved and the correct answer reached.
Now we know that
1 meter = 100 centimeter
Then
0.075 meter = [(100/1) * 0.075] centimeter
We know that any number when divided by 1 gives the same number.
So
0.075 meter = (100 * 0.075) centimeter
                    = (100 * 75/1000) centimeter
                    = (7500/1000) centimeter
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3 years ago
Who invented peroidic table
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3 0
3 years ago
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7. Write the equation for the positron emission of barium-127.
ziro4ka [17]

The reaction is given by

\\ \rm\Rrightarrow {}^{127}_{56}Ba\longrightarrow {}^{0}_{+1}\beta+{}^{127}_{55}Cs

Barium goes underneath beta decay to form Ceaseum

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8 0
2 years ago
What is the mass of 5.119 102 molecules of copper sulfate<br> (CuSO4)?
Amiraneli [1.4K]

Answer:

Mass = 135.66 ×10⁻²¹ g

Explanation:

Given data:

Number of molecules of CuSO₄= 5.119×10²

Mass of CuSO₄= ?

Solution:

The given problem will solve by using Avogadro number.

1 mole contain 6.022×10²³ molecules

5.119×10² molecules ×1 mol / 6.022×10²³ molecules

0.85×10⁻²¹ mol

Mass in grams:

Mass = number of moles × molar mass

Mass = 0.85×10⁻²¹ mol × 159.6 g/mol

Mass = 135.66 ×10⁻²¹ g

7 0
3 years ago
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