3 years ago

The nucleus of a certain atom has seventeen protons and eighteen neutrons. how many electrons does the atom have?

1 answer:

ipn [44]3 years ago

5 0

Most likely seventeen electrons.

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Natasha2012 [34]

Answer:

0.049 mol/L.s

Explanation:

The decomposition of hydrogen peroxide is:

$H_2O_2 \to H_2O + \dfrac{1}{2}O_2$

$Rate = -\dfrac{\Delta [H_2O_2]}{\Delta t}= \dfrac{\Delta [H_2O_2]}{\Delta t}= \dfrac{ 2 \Delta [H_2O_2]}{\Delta t}$

The rate of decomposition reaction = the rate of formation of $H_2O$ = 0.098 mol/L.s

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Rate of formation of $O_2$ $= \dfrac{ rate \ of \ reaction }{2}$

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