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alukav5142 [94]
4 years ago
12

Write a sentence using the following word: beech.

Chemistry
2 answers:
Elena-2011 [213]4 years ago
8 0

Answer:

<em><u>The chief trees are beech, oak and conifers. A large area is under forests, the oak, beech, fir, birch and hornbeam being the principal trees. </u></em>

<em><u>Explanation:</u></em>

ArbitrLikvidat [17]4 years ago
5 0

I was so happy when I saw the beech tree,there was so much shade

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What happens to the volume of a gas in a closed container if the temperature increases, but the pressure remains the same? Why?
labwork [276]

Answer:

Volume will goes to increase.

Explanation:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

So when the temperature goes to increase the volume of gas also increase. Higher temperature increase the kinetic energy and molecules move randomly every where in given space so volume increase.

Now we will put the suppose values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 4.5 L × 348 K / 298 k

V₂ = 1566 L.K / 298 K

V₂ = 5.3 L

Hence prove that volume increase by increasing the temperature.

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3 years ago
Explain the difference between Carbon-9 and Carbon-14. Which version Carbon do you believe is the most stable? Why? What informa
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correct form of question is

Explain the difference between Carbon-12 and Carbon-14. Which version Carbon do you believe is the most stable? Why? What information could help you confirm your prediction?

Answer:

Carbon has three isotopes those are carbon- 12 , carbon - 13 , carbon-14 among these only C-12 and C-13 are stable while C-14 is radioactive.

C-12 has 6 protons and 6 neutrons , C-14 has 6 protons and 8 neutrons. Atoms with equal number of protons and electrons are generally stable however C-12 and C-14 have 6 electrons but due to excess neutrons present in C-14 makes it undergo radioactivity therefore it is unstable.

7 0
3 years ago
. Why do cells reproduce?
Igoryamba

Answer:

Cells reproduce for repairing tissues and the growth and development of an organism. Cell division is necessary for any organism to grow and, once fully developed, to maintain healthy tissues. Mitosis occurs in a fully formed organism to repair damaged tissue and to replace old cells.

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When a cell is beyond repair, lysosomes help it to self-destruct in a process called apoptosis.

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