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Dvinal [7]
3 years ago
7

GOOD MORNING GUYS☕☕☕☕​

Chemistry
2 answers:
Vinvika [58]3 years ago
8 0

Answer:

GOOD MORNING DIDI be happy

Sauron [17]3 years ago
3 0
<h2><em>good </em><em>morning</em></h2>

<em>I </em><em>wanna </em><em>talk </em><em>to </em><em>you </em><em>guys </em><em>plss</em>

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1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² what elemts is it
natita [175]

Answer: Barium

Explanation:

7 0
3 years ago
What is the main cause of increased erosion
anyanavicka [17]
The main cause of increased erosion is natural elements like rain, wind and ice. Erosion is the process by which the surface of the Earth gets worn down. 
Soil erosion is also a big thing, it is caused by mostly rain that contributes to floods. This stuff is bad for farmers because they do a lot of farming and with erosion increasing the growing crops are decreasing because of erosion. 
6 0
3 years ago
Amphetamine (C9H13N)(C9H13N) is a weak base with a pKbpKb of 4.2. You may want to reference (Pages 710 - 713) Section 16.8 while
Soloha48 [4]

Answer:

pH = 10.38

Explanation:

  • C9H13N ↔ C9H20O3N+  +  OH-

∴ molar mass C9H13N = 135.21 g/mol

∴ pKb = - log Kb = 4.2

⇒ Kb = 6.309 E-5 = [OH-][C9H20O3N+] / [C9H13N]

∴ <em>C</em> sln = (205 mg/L )*(g/1000 mg)*(mol/135.21 g) = 1.516 E-3 M

mass balance:

⇒ <em>C</em> sln = 1.516 E-3 = [C9H20O3N+] + [C9H13N]......(1)

charge balance:

⇒ [C9H20O3N+] + [H3O+] = [OH-]; [H3O+] is neglected, come from water

⇒ [C9H20O3N+] = [OH-].......(2)

(2) in (1):

⇒ [C9H13N] = 1.516 E-3 - [OH-]

replacing in Kb:

⇒ Kb = 6.3096 E-5 = [OH-]² / (1.516 E-3 - [OH-])

⇒ [OH-]² + 6.3096 E-5[OH] - 7.26613 E-8 = 0

⇒ [OH-] = 2.3985 E-4 M

∴ pOH = - Log [OH-]

⇒ pOH = 3.62

⇒ pH = 14 - pOH = 14 - 3.62 = 10.38

5 0
3 years ago
A compound consists of only one type of element?
Gnoma [55]

Answer:

A compound can easily be split up into its different elements.

Explanation:

5 0
3 years ago
What can bond or join together to form molecules?
ioda

Answer:

Atoms.

They come together so they can form molecules (because of their electrons)

It becomes a covalent bond

Explanation:

5 0
3 years ago
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