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3 years ago

15

Is the equation Ag2O ----> Ag+ O2 balanced

2 answers:

maw [93]3 years ago

4 0

Ok so simple 1Ag2O ---> 1Ag+1O2 do u understand how I got that????

natita [175]3 years ago

3 0

This is a decomposition reaction.
Silver has a charge of plus one, and oxygen has a charge of minus two. So this equation is not balanced.
The first part is right. The two should be a subscript. The second part is not right and you should add the 2 to the Silver instead of the oxygen.

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Answer:

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Explanation:

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3 years ago

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What is the concentration of a potassium iodate solution after you complete the following porcedure? Pipette 10 mL of a 0.31 M p

zubka84 [21]

<u>Given:</u>

Initial concentration of potassium iodate (KIO3) M1 = 0.31 M

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<u>To determine:</u>

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<u>Explanation:</u>

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3 years ago

It takes 495.0 kJ of energy to remove 1 mole of electron from an atom on the surface of sodium metal. How much energy does it ta

Zigmanuir [339]

Answer:

$\lambda=241.9\ nm$

Explanation:

The work function of the sodium= 495.0 kJ/mol

It means that

1 mole of electrons can be removed by applying of 495.0 kJ of energy.

Also,

1 mole = $6.023\times 10^{23}\ electrons$

So,

$6.023\times 10^{23}$ electrons can be removed by applying of 495.0 kJ of energy.

1 electron can be removed by applying of $\frac {495.0}{6.023\times 10^{23}}\ kJ$ of energy.

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$\lambda=\frac{10^{-26}\times \:19.878}{10^{-20}\times \:82.18}$

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$\lambda=2.4188\times 10^{-7}\ m$

Also,

1 m = 10⁻⁹ nm

So,

$\lambda=241.9\ nm$

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