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Alexeev081 [22]
3 years ago
12

Which change occurs when an atom in excited state returns to ground state? 1 energy is emitted 2energy is absorbed 3 the number

of electrons decreases 4 the number of electrons increases
Chemistry
2 answers:
kozerog [31]3 years ago
7 0
The answer is number 1 - energy is emitted


Energy is released when an atom in an excited state returns to the ground state.
blondinia [14]3 years ago
4 0

The correct option is this: ENERGY IS EMITTED.

An atom, which is in an excited state is an atom that has moved away from the ground level as a result of gaining energy. This type of atom has more energy compare to those in the ground state and it is also unstable. To return to the ground state, the atom has to emit the energy which it gained in the first instance. Thus, when an excited atom returns to the ground state, energy is always emitted.

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Why is the moisture of cirrus clouds mostly in the solid state
MariettaO [177]

Answer:

Wind is the horizontal movement of air, transporting energy transferred from the earth's surface as sensible and latent heat. Sensible heat is transferred by the processes of conduction and convection. Conduction transfers energy within a substance, and convection transfers energy through the vertical movement of the heated substance. Latent heat is the transfer of energy by transforming the substance itself. As you recall, water has the ability to exist as liquid, gas or solid. The transformation from liquid to gas is called evaporation; the reverse process, from gas to liquid, is called condensation; from liquid to solid is known as solidification (freezing); and from solid to liquid, fusion (melting). Water can also be transformed directly from solid to gas (sublimation), or the reverse, through a process called deposition. We will see these various processes in the formation of clouds.

Explanation:

if I did not give answer then i hope i at least helped!

5 0
3 years ago
Which compound has both ionic and covalent bonding? A) CaCO3 B) CH2Cl2 C) CH3OH D) C6H12O6
Ber [7]
The answer is letter A.
5 0
4 years ago
Read 2 more answers
Plz help me with these 4 questions!! Need right correct answers!! Thxx!!
lubasha [3.4K]

number one: when substances like rock and minerals are being physically broken down, its called weathering.

Number two: when particles are carried away to another location exp " a river carrying rocks to an ocean" that's called deposition

Number three: this would also be weathering because it is physically being worn down

Number four: would be a topographic map, because theses maps use lines to study elevation instead of color

3 0
3 years ago
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An aqueous salt solution is 15.0% mass sodium chloride. How many grams of salt are in 250.0 grams of this solution? Use correct
Shtirlitz [24]

Answer:

37.5 g NaCl

Explanation:

Step 1: Given data

  • Concentration of NaCl: 15.0% m/m
  • Mass of the solution: 250.0 g

Step 2: Calculate how many grams of NaCl are in 250.0 g of solution

The concentration of NaCl is 15.0% by mass, that is, there are 15.0 g of NaCl every 100 g of solution.

250.0 g Solution × 15.0 g NaCl/100 g Solution = 37.5 g NaCl

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3 years ago
Which of the following did Democritus NOT think about atoms
vovikov84 [41]

Answer:

Need more information.

Explanation:

3 0
4 years ago
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