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AlladinOne [14]
2 years ago
7

Hello people~

Chemistry
2 answers:
Paladinen [302]2 years ago
8 0

Answer:

Polyester

Explanation:

  • Polyethylene terephthalate or shortly known as PET
  • its a clean and strong polyester
  • It is used in packaging
Dimas [21]2 years ago
5 0

Answer:

The answer is letter D

Have a good day

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Answer:

hair dryer and wassup

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Which element has the element configuration 1s2 2s2 2p4
expeople1 [14]

Answer:

O(Oxygen)

Explanation:

2+2+4=8

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3 0
3 years ago
Consider an electron placed in a region of space in which the electric potential spatially. The electron is placed at a point wh
loris [4]

Answer:

1.33\cdot 10^7 m/s

Explanation:

For a charged particle accelerated by an electric field, the kinetic energy gained by the particle is equal to the decrease in electric potential energy of the particle; therefore:

K_f-K_i = -q\Delta V

where

K_f is the final kinetic energy

K_i is the initial kinetic energy

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In this problem,

q=-1.6\cdot 10^{-19}C is the charge of the electron

\Delta V=-500 V-(-1000 V)=500 V

The electron starts from rest, so its initial kinetic energy is

K_i=0

Therefore,

K_f=-(-1.6\cdot 10^{-19})(500)=8\cdot 10^{-17}J

We can write the final kinetic energy of the electron as

K_f=\frac{1}{2}mv^2

where

m=9.11\cdot 10^{-31} kg is the electron mass

v is the final speed

And solving for v,

v=\sqrt{\frac{2K_f}{m}}=\sqrt{\frac{2(8\cdot 10^{-17})}{9.11\cdot 10^{-31}}}=1.33\cdot 10^7 m/s

5 0
3 years ago
Write a full chemical equation for the reactions between magnesium and sulfuric acid
melamori03 [73]

Answer:

magnesium + hydrochloric acid → hydrogen gas + magnesium chloride

explanation:

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<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>

6 0
3 years ago
Which shell are the valence electrons of a germanium atom in the ground state located
yKpoI14uk [10]
It would be in the fourth shell.
7 0
3 years ago
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