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Fudgin [204]
3 years ago
9

Transfers _______ energy to the air molecules inside the balloon."

Chemistry
1 answer:
Vesna [10]3 years ago
3 0

Answer:

i think b or a

Explanation:

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ASAP Two different atoms have four protons each and the same mass. However, one has a negative charge while the other is neutral
Vinvika [58]

Answer:

Explanation:

Just a little fundamental knowledge:

   Protons are positively charged particles

   Neutrons do not carry any charges

  Both protons and neutrons are located in the nucleus of an atom. They determine the mass of any atom.

 Atoms having the same mass will have the same number of protons and neutrons. Collectively, the number is called mass number.

 Electrons are negatively charged particles orbiting round the nucleus of an atom. They take up the the bulk volume of the atom. They do not add to the weight of an atom.

The protons, neutrons and electrons are the three fundamental particles in an atom.

Two given atoms:

    A = 4 protons and negatively charge

    B = 4 protons and neutral

Location:

  • By default, in all atoms, the protons and neutrons resides in the nucleus.
  • The electrons are located in the orbitals round the nucleus

Possible number of subatomic particles:

For atom A;

     Protons  = 4

     Electrons  = 4

    Neutrons  cannot be determined.

Note: in a neutral atom, the number of protons and electrons are the same

For atom B:

    Protons = 4

    Electrons = 4 + x where x is the number of electrons gained

    Neutrons  cannot be determined.

When an atom becomes charged, it has lost or gained electrons. A negative charge depicts an atom the has gained additional electrons.

The value of x, is always a positive integer greater than 0 and less than 7

   Electrons can be 5, 6, 7, 8, 9 or 10

When the number of electrons reaches 10, the atom is stable.

4 0
3 years ago
Can sum1 please help me? if u can
kiruha [24]

Answer:

donde estan las preguntas

Explanation:

6 0
3 years ago
Please answer fast do in 5 mins Body System used for support, movement, structure and makes red blood cells
pochemuha

Explanation:

The Skeletal System (A).

7 0
3 years ago
Explain the electrolysis of acidified water​
Andrew [12]

Answer:

yqaeh

Explanation:

Electrolysis of acidified water

Water is a poor conductor of electricity, but it does contain some hydrogen ions , H +, and hydroxide ions, OH -. These ions are formed when a small proportion of water molecules naturally dissociate . ... H + ions are attracted to the cathode , gain electrons and form hydrogen gas.

8 0
3 years ago
Two metals (Metal A and Metal B) are both exposed to a laser which emits photons that have a greater energy than the work functi
Tresset [83]

Answer:

shorter than

equal to

Explanation:

Let us go back to the Einstein photoelectric equation;

KE = E - Wo

Where

KE = kinetic energy of the photoelectron

E = energy of the incident photon

Wo = work function of the metal

But KE = 1/2mv^2

Thus the velocity of the emitted photoelectron  is determined by the kinetic energy of the emitted photoelectron.

Since the work function of metal A is smaller than that of metal B, the kinetic energy of photoelectrons emitted from metal A is greater than that of photoelectrons emitted from metal B . Therefore, the velocity of electrons from metal A is greater than those from metal B.

From de Broglie relation;

λ = h/mv

Where;

λ = de Broglie wavelength

h = Plank's constant

m = mass

v = velocity

Metal A producing electrons with greater velocity will lead to a shorter de Broglie wavelength compared to those from metal B.

The number of photoelectrons ejected is determined by the intensity of the photons and not the energy of the incident photons or the work function of the metals. Since the two metals are exposed to the the same laser, equal number of photoelectrons are produced for metals A and B.

8 0
3 years ago
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