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astra-53 [7]
3 years ago
6

What goes in the rest of the atoms diagram ?

Chemistry
1 answer:
Montano1993 [528]3 years ago
8 0

Answer:

c. Number of electrons

f. Isotope

Explanation:

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Vadim26 [7]

Answer:

Percentage by mass of oxygen = 76.20% (Approx)

Explanation:

Given:

HNO3

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Find:

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Computation:

HNO3

Total mass = 1 + 14 + 3(16)

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Determine a massa, em kg, de um material que está contida em um volume de 18L. Sabe-se que a densidade do material é de 0,9 g/cm
suter [353]
The question in English is "<span>Determine the mass, in kg, of a material that is contained in a volume of 18L. It is known that the material density is 0.9 g/cm 3"

Answer: 
</span>
We can use a simple equation to solve this problem. <span>
    d = m/v</span><span>

<span>Where </span>d <span>is the density, </span>m <span>is the mass and </span>v is the volume.

d = </span>0.9<span> g/cm³
m = ?
v = </span>18 L = 18 x 10³ cm³<span>

By applying the equation,
<span>    0.9 g/cm³ = m / </span></span>18 x 10³ cm³<span>
                  m = 0.9 g/cm³ x </span>18 x 10³ cm³<span> 
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Hence, the mass of 18 L of material is 16.2 kg.</span>
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Licemer1 [7]

Answer:

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Explanation:

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