4 years ago

How many resonance structures are possible for hydroxide ion? A. 3 B. none C. 2

1 answer:

5 0

First, how many valence electrons does hydroxide ion have? If it has something like 6 it would need 2 to get the max total of 8. Or perhaps it's 7. Then only one is needed. But if the number is 8 then 0 is required

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Gnesinka [82]

Answer : The angular acceleration is $\alpha=-\beta t=-0.810\text{ t}$

Solution : Given,

$\gamma=5.20rad/s$

$\beta=0.810rad/s^3$

The given angular velocity equation is,

$\omega_z(t)=\gamma-\beta t^2$

At t = 0, $\omega_z(0)=\gamma$

At t = t, $\omega_z(t)=\gamma-\beta t^2$

Angular acceleration : It is defined as the rate of change of angular velocity with respect to time.

Formula used for angular acceleration :

$\alpha=\frac{\omega_z(t)-\omega_z(0)}{t}$

where,

$\alpha$ = angular acceleration

$\omega_z(t)$ = angular velocity at time 't'

$\omega_z(0)$ = angular velocity at time '0'

t = time

Now put all the given values in this formula, we get the angular acceleration.

$\alpha=\frac{(\gamma)-(\gamma-\beta t^2)}{t}$

$\alpha=-\beta t=-0.810\text{ t}$

Therefore, the angular acceleration is $\alpha=-\beta t=-0.810\text{ t}$

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3 years ago