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KiRa [710]
3 years ago
14

How to find valency?​

Chemistry
2 answers:
Pepsi [2]3 years ago
6 0

Answer:

ork out which of the displacement (S), initial velocity (U), acceleration (A) and time (T) you have to solve for final velocity (V).

If you have U, A and T, use V = U + AT.

If you have S, U and T, use V = 2(S/T) - U.

If you have S, U and A, use V = SQRT(U2 + 2AS)

Gnoma [55]3 years ago
5 0
A :-) lets take a atomic number of 5 which is BORON so, the valency will be 8 - atomic number of boron.

Eg : boron ( Z = 5 )
Electronic configuration = k = 2 , L = 3
Valency = 8 - 5
= 3
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liubo4ka [24]

4.79 x 10⁻⁷moldm⁻³

Explanation:

Given parameters:

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Unknown:

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Solution:        

    The pH or pOH scale is used for expressing the level of acidity alkalinity of aqueous solutions.

                      pOH = -log[OH⁻]

  we know the pOH to be 6.32

               6.32 = -log[OH⁻]

               [OH⁻]  = inverse log₁₀(6.32)

                [OH⁻] =  4.79 x 10⁻⁷moldm⁻³

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How many moles of KBr will be produced from 10.51 moles of BaBr2?
gregori [183]

Answer:

21.02moles of KBr

Explanation:

Parameters given:

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Complete reaction equation:

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