When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion? A. +2 B. -1 C. -2 D. +1

Answers

Answer 1

Answer: C. 2-

electrons have a negative charge, thus adding two electrons to an atom will give it a charge of 2 times -1 or -2

Answer 2

Answer:

let me correct you , You miss typed "2-" its actually "-2"

Related Questions

Which statement best explains the relationship between the electric force between two charged objects and the distance between thema) As the distance increases by a factor, the electric force increases by the square of that factor. b) As the distance increases by a factor, the electric force increases by twice that factor. c) As the distance increases by a factor, the electric force decreases by twice that factor. d) As the distance increases by a factor, the electric force decreases by the same factor. e) As the distance increases by a factor, the electric force decreases by the square of that factor.
What is the pitch of a sound wave?
Ocean waves are examples of: transverse waves longitudinal waves circular waves
I need to know more about science
two bullets have masses of 0.004 kg and 0.008 kg, respectively. Both are fired with a speed of 60.0 m/s. which bullet has more kinetic energy?

Which two wire properties would provide the greatest resistance to the flow of a current?

Answers

Properties of wire, and things you can
do to it to make its resistance high:

-- Thickness. Make it as thin as a hair on a mosquito's leg.

-- Length. Make it long enough to go around the Earth.

-- Resistivity of the material. Make the wire out of glass or wood.

if this is science then I believe one is CONDUCTION not sure about second one but it may be something to do with the wires look and structure e.g matieral

Which of the following rules should be used to keep the appropriate distance between your vehicle and the vehicle in front of you?

Answers

The correct answer is C) Two-second rule.

This means that a driver must maintain a distance that would take at least 2 seconds to cover, at the current speed of the car. This means that in case the car in front suddenly comes to a full stop, the driver of the car behind has 2 seconds react and hit his own brakes. A two-car length rule might be alright when driving at low speeds, but when going at high speeds (on a highway, for example), a two-car length can be covered in a fraction of a second, which means a sudden braking by the car in front would almost guarantee an accident.

Answer:

4-second following distance

1. A rifle with a longer barrel can fire bullets with a larger velocity than a rifle with a shorter barrel.

Answers

i dont believe so because thw longer the barrel the longer the bullet is inthe rifle shortening the force from the friction with the barrel so a rifle with a shorter barrel would be betterto use than one with a lomger barrel even though the longer barreled rifle may be more presice

List five factors that may affect the rate of a chemical reaction

Answers

1) temperature
2) pressure
3) concentration
4) surface area
5) the presence of a catalyst

Regan has an empty glass cup. it has a mass of 0.3 kg. she drops the cup on the ground and it shatters into several pieces. if she collected all of the pieces of the cup, how much mass would all of the pieces have combined?

Answers

0.3, because its the same thing, just in pieces.

Dogs are able to hear much higher frequencies than humans are capable of detecting. For this reason, dog whistles that are inaudible to the human ear can be heard easily by a dog. If a dog whistle has a frequency of 30000 Hz, what is the wavelength of the sound emitted?

Answers

The wavelength of the sound emitted is 3.33 x 10⁵ m.

What is wavelength?

The wavelength is the distance between the adjacent crest or trough of the sinusoidal wave. The wavelength is the reciprocal of the frequency of the wave.

Wavelength λ = 1/f

If a dog whistle has a frequency of 30000 Hz, then the wavelength will be

λ = 1/f

λ = 1/30000

λ = 3.33 x 10⁵ m

Thus, the wavelength of the sound of dog emitted is 3.33 x 10⁵ m

Learn more about wavelength.

brainly.com/question/13533093

#SPJ2

Wavelength = 1/frequency thus wavelength =1/30000

Other Questions

Why does an electrically heated mirror stay clear when a person has a shower?

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.50×1016 kg and a radius of 9.00 km .What is the speed of a satellite orbiting 4.60 km above the surface?

Advantages and disadvantages of resonance

A scientific law is based on repeated inferences made over long periods of time.