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nataly862011 [7]
3 years ago
7

Where would you expect to find an element with the greatest electronegativity?

Chemistry
1 answer:
beks73 [17]3 years ago
4 0
As you move from left to right of the periodic table, the element becomes more negative.
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What is the wavelength of a photon with an energy of 3.38 x 10-19 J?
irina1246 [14]

Answer:

C. 588 nm

Explanation:

Given parameters:

Energy of the photon  = 3.38 x 10⁻¹⁹J

Unknown:

Wavelength of the photon   = ?

Solution:

The energy of a photon can be expressed as;

     E = \frac{hc}{wavelength}

    hc  = E x wavelength

     Wavelength  = \frac{hc }{E}  

  h is the Planck's constant = 6.63 x 10⁻³⁴m²kg/s

  c is the speed of light  = 3 x 10⁸m/s

  E is the energy  

   Wavelength = \frac{6.63 x 10^{-34} x 3 x 10^{8} }{3.38 x 10^{-19} }    = 5.89 x 10⁻⁷m

4 0
3 years ago
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What coefficient must be added to the carbon in the reactants to balance the following equation?
Sophie [7]

Answer:

2

Explanation:

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7 0
2 years ago
Plumbum hydroxide + acid sulphuric = ?
lianna [129]

Answer:

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Explanation:

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3 years ago
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