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Oksana_A [137]
3 years ago
5

A carbon-12 atom has a mass of 12.00000 amu. The mass of a proton is 1.00728 amu, and the mass of a neutron is 1.00866 amu. 

Chemistry
1 answer:
Oksi-84 [34.3K]3 years ago
8 0

Answer:

hell

Explanation:

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sertanlavr [38]

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Explanation:

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List the number of each type of atom on the left side of the equation 2C10H22(l)+31O2(g)→20CO2(g)+22H2O(g)
Leokris [45]

<u>Answer:</u>

<em>20, 44, 62 </em>

<em></em>

<u>Explanation:</u>

To find the number of atoms of each element, we multiply coefficient and subscript  

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5 × 1 = 5 ,Ca atoms and

5 × 2 = 10, Cl atoms  

If there is a bracket in the chemical formula  

For example 3Ca_3 (P_1 O_4 )_2

we multiply coefficient × subscript × number outside the bracket to find the number of atoms  

(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )

So

3 × 3 = 9 , Ca atoms  

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So let us find the number of atoms of each element on the left  side of the equation  

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Number of H atoms = 2 × 22 = 44

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20, 44, 62  are the Answers.

3 0
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IgorC [24]

Answer:

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Explanation:

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starting from this, we use the atomic weight of sodium to convert the units from J / mol ° C to J / g ° C

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4 0
3 years ago
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