All categories

3 years ago

What is the oxidation number of the element Se

Physics

1 answer:

maria [59]3 years ago

6 0

Answer:

The oxidation number of a monatomic (composed of one atom) ion is the same as the charge of the ion. For example, the oxidation numbers of K+, Se2−, and Au3+ are +1, -2, and +3, respectively. The oxidation number of oxygen in most compounds is −2.

Explanation:

You might be interested in

A force acting on a moving ball causes its motion to change. This force stays constant.

sashaice [31]

Answer:

you stop the ball or bring it to a different direction

Explanation:

i don't know if this helps. i didn't take physics yet. but i hope this helps.

8 0

3 years ago

The period of a simple pendulum is 3.8 s. the length of the pendulum is doubled. what is the period t of the longer pendulum? t

Varvara68 [4.7K]

5.28519s assuming acceleration of gravity is 9.8m/s. When I doubled the length of the pendulum I used 70 since the original was 35.15234.

5 0

3 years ago

Two spheres carry a charge of 1x10^-7 C. Their centers are separated by 0.7m. Calculate the magnitude of the force between the t

Drupady [299]

We have that the force between the two charged objects is mathematically given as

F=2.349N

<h3>Magnitude of the force between two charged objects.</h3>

Question Parameters:

Two spheres carry a charge of 1x10^-7 C.

Their centers are <u>separated</u> by 0.7m.

Generally the equation for the Force is mathematically given as

$F=\frac{q1q2}{4*\pi e*r}$

Therefore

$F=\frac{(1e-7)^2}{9e9*0.7}$

F=2.349N

For more information on Force visit

brainly.com/question/26115859

8 0

3 years ago

A sinusoidal wave on a string is described by the wave function

JulsSmile [24]

The frequency of the wave is approximately 25/π Hertz

<h3>Wave function</h3>

The standard wave function is expressed according to the equation

y = Asin(2πft+2πx/λ)

where

λ is the wave length

Given the equation below

y=0.15 sin (0.80x - 50t)

Since 50 = 2πf

For the frequency

2πf = 50

f = 50/2π

f = 25/π Hertz

Hence the frequency of the wave is approximately 25/π Hertz

Learn more on speed of the wave here: brainly.com/question/25847009

#SPJ4

6 0

2 years ago

Increasing the mass attached to a spring will decrease the angular frequency of its vibrations. True or False

Scrat [10]

Answer:

decreases

Explanation:

The angular frequency of the mass is given by

$\omega =\sqrt{\frac{k}{m}}$

where, k is the spring constant and m be the mass of the body which is doing oscillations.

if the mass of the body increases, so the value of angular frequency decreases, as the angular frequency is inversely proportional to the square root of the mass of the body.

4 0

3 years ago