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Harrizon [31]
3 years ago
13

Which of the following arrangements of electrons represent Potassium? *

Chemistry
1 answer:
cupoosta [38]3 years ago
5 0
C. 2,8,8,1 also know as K on the periodic table
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SIZIF [17.4K]
Use the specific heat equation to solve this.

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28.6 g + 327.33 g + 5891.212 g=
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If 24 g rams of ozone, 03, was collected how many moles were collected?
dexar [7]

Hey there!

Molar mass of O3 = 47.9982 g/mol

therefore:

1 mole O₃ ---------------------  47.9982 g

moles O₃ ---------------------- 24 g

moles O₃ = 24 x 1 /  47.9982

moles O₃ = 24 / 47.9982

moles O₃ = 0.500 moles

Hope this helps!

5 0
3 years ago
Rutherford’s gold foil experiment gave evidence that an atom is mostly empty space. true false
Sholpan [36]

The given statement is true .

<h3>What is Rutherford’s gold foil  experiment?</h3>
  • A piece of gold foil was hit with alpha particles, which have a favorable charge. Most alpha particles went right around. This showed that the gold particles were mostly space.
  • The Rutherford gold leaf investigation supposed that most (99%) of all the mass of an atom is in the middle of the atom, that the nucleus is very small (105 times small than the length of the atom) and that is positively captured.
  • For the distribution experiment, Rutherford enjoyed a metal sheet that could be as thin as practicable. Gold is the most malleable of all known metals. It can easily be converted into very thin sheets. Hence, Rutherford established a gold foil for his alpha-ray scattering experimentation.

To learn more about Rutherford’s gold foil experiment, refer to:

brainly.com/question/4113533

#SPJ4

4 0
2 years ago
When heated, solid copper(ii) carbonate decomposes to solid copper(ii) oxide and carbon dioxide gas. give the balanced chemical
Talja [164]
CuCO₃(s) → CuO(s) + CO₂(g)
6 0
4 years ago
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