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Advocard [28]
3 years ago
10

Need help real quick with these questions

Chemistry
1 answer:
Yuliya22 [10]3 years ago
8 0

Answer:

what are the questions???

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What does it mean for the energy levels in an atom to be quantized? Describe how this affects where electrons can be found.
olga55 [171]

Answer:

Energy of an electron is quantinized means the electrons can possess only specific individually separated values.

These energy levels are stable and are stationary along with different energy value.  The electron remains in the state until energy is absorbed or released.

The electrons absorb energy when it moves from lower energy state to higher energy state. The electrons lose energy when it moves from higher energy state to lower energy state and thus emit radiations corresponding to the energy gap and is called as quanta.

7 0
3 years ago
A ________________ is formed when two or more __________ bond by a covalent bond.
sergey [27]
Compound is formed when two or more atomic bond (or atom)
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4 years ago
What are eight elements named after towns
maxonik [38]
1. Berkelium(Berkeley, CA) 2. Dubnium(Dubna, Russia) 3. Darmstaditum (Darmstadt, Germany) 4. Erbium(Ytterby, Sweden) 5. Strontium(Strontian, Scotland) 6. Terbium(Ytterby, Sweden) 7. Yttebium(Ytterby, Sweden) 8. Yttrium(Ytterby, Sweden)
5 0
3 years ago
1. A sample of gas has a volume of 6.20 L at 20°C at a pressure of 1.10 atm. What is its volume at the same temperature and at a
nadya68 [22]

Answer:

7.37 L is the new volume

This can be understood as a system that maintains its constant T ° and if the moles of the gas are not modified, the pressure varies inversely proportional to the volume.

Explanation:

We can apply the Ideal Gases Law, to solve this problem. Moles are the same in both cases, the T° also keeps on constant.

P . V = n . R . T      For this first situation

P . V = n . R . T      For the second situation

V = n . R . T / P

n . R . T will be the same, because n is the number of moles, T means T° and R is a physic constant, so for the first case we can define:

P₁ . V₁, and for the second case, P₂ . V₂

We match both equations, and we replace data

6.20L. 1.10 atm = 0.925 atm . V₂

(6.20L. 1.10 atm) / 0.925 atm = V₂

V₂ = 7.31 L

If the volume decreases, the pressure increases more because the molecules collide more with the walls of the container but the opposite happens where if the volume increases (<u>as in the case of exercise</u>), the pressure will be lower. Gas molecules will not collide so much with the walls

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4 years ago
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Alkali metals are relatively soft because the atoms contribute only one _____ to a metallic bond
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Valence Electron because the more valence electrons an atom can contribute the shared pool, the stronger the metallic bonds will be

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