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kow [346]
3 years ago
11

Who formed the first atomic theory?

Chemistry
2 answers:
GarryVolchara [31]3 years ago
7 0

Thank you so much! :D

NeTakaya3 years ago
6 0

Answer:

Leucippus and Democritus

Explanation:

Hope this helps~ :D

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ICMP scanning involves in checking for the live systems, which can be done by sending the following ping scan request to a host.
abruzzese [7]

Answer:

ICMP Echo Request

Explanation:

ICMP Echo Request is a form of probe or message sent by a user to a destination system.

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4 years ago
Cómo se puede comprobar el efecto universo​
ch4aika [34]

Answer:

???! huhhhjhhh no I speak English

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3 years ago
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How many atoms are present in a sample of Potassium (K) weighing 33.49g?
madam [21]

Answer:

5.158 × 10²³ atoms K

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

33.49 g K

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of K - 39.10 g/mol

<u>Step 3: Convert</u>

<u />33.49 \ g \ K(\frac{1 \ mol \ K}{39.10 \ g \ K} )(\frac{6.022 \cdot 10^{23} \ atoms \ K}{1 \ mol \ K} ) = 5.15797 × 10²³ atoms K

<u>Step 4: Check</u>

<em>We are given 4 sig figs. Follow sig figs and round.</em>

5.15797 × 10²³ atoms K ≈ 5.158 × 10²³ atoms K

3 0
3 years ago
Calculate the number of Li atoms in 9.5 moles of Li
kenny6666 [7]
Just multiply 9.5 by Avogadro's number. You get 5.72 x 10^24 atoms.
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3 years ago
Need help balancing these ​
kari74 [83]
The answer would be 1,3,1,3
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3 years ago
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