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vichka [17]
2 years ago
11

H2+O2=H2O need to balance the chemical equation

Physics
2 answers:
sleet_krkn [62]2 years ago
6 0

Answer: he is correct its 2 1 2

Explanation: i did it and got it right

yuradex [85]2 years ago
5 0

Answer:

2         1         2

Explanation:

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What is the power of a 650N force that moves an object 75cm in 0.63s?​
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Answer:

<u>Power</u><u> </u><u>is</u><u> </u><u>7</u><u>7</u><u>3</u><u>.</u><u>8</u><u> </u><u>watts</u>

Explanation:

{ \rm{power =  \frac{force \times distance}{time} }} \\  \\ { \rm{power =  \frac{650 \times 0.75}{0.63} }} \\  \\ { \rm{power = 773.8 \: watts}}

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The Bohr radius a0 is the most probable distance between the proton and the electron in the Hydrogen atom, when the Hydrogen ato
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The electric force is  F =  11.9 *10^{-9} \ N

Explanation:

From the question we are told that

    The  Bohr radius at ground state is  a_o  =  0.529 A =  0.529 ^10^{-10} \ m

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     F  =  \frac{k * n  * p }{r^2}

Where n and p are charges on a single electron and on a single proton which is mathematically represented as

      n = p  =   1.60 * 10^{-19} \ C

    and  k is the coulomb's  constant with a value

           k =9*10^{9} \ kg\cdot m^3\cdot s^{-4}\cdot A^2.

substituting values

       F =  \frac{9*10^{9} *  [(1.60*10^{-19} ]^2)}{(2.63 * 0.529 * 10^{-10})^2}

         F =  11.9 *10^{-9} \ N

     

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