CHEMISTRY HIGH SCHOOL

How many electrons in mole will discharge
2g of Copper 2 ions​

Answers

Answer 1
Answer:

Explanation:

96.485 columbs=1 faraday will

deposit 64/2g= 32 g cu ion

therfore it will require

96,485 ×2/32 =? coulombs or 1/16 of

Faraday= 1 / 16 mole of electrons .

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Answer:

The correct answer is: cubic or isometric crystal system

Explanation:

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Because of their large mass and charge, alpha rays are the least penetrating and least dangerous.

Answers

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(HELP FAST )The model shows a molecule of silk made by a spider.

Answers

An atom is each sphere which are all connected

Calculate the mass of water produced when 2.06 g of butane reacts with excess oxygen.

Answers

2C4H10 + 13O2 = 8CO2 + 10H2O

1. (2.06g C4H10)/(58.12 g/mol C4H10) = 0.035mol C4H10

2. (0.035molC4H10)(10 mol H2O/2mol C4H10) = 0.177mol H2O

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determine the ionic characteristics of this element. element number of electrons in outer energy level electrons can receive valence (incl. or -) oxygen

Answers

Answer: The ionic characteristic of oxygen is that it tends to gain 2 electrons and form anions with a charge of -2 in order to achieve a stable electron configuration.

Explanation:

Given the balanced equation representing a reaction:4NH3 + 5O2 ==>4NO + 6H2O
What is the minimum number of moles of O2 that are needed to completely react with 16 moles of NH3?
(1) 16 mol (3) 64 mol
(2) 20. mol (4) 80. mol

Answers

4 NH₃ + 5 O₂ = 4 NO + 6 H₂O

4 moles NH₃ --------- 5 moles O₂
16 moles NH₃ -------- ? moles O₂

moles O₂ =  16 * 5 / 4

moles O₂ = 80 / 4

= 20 moles of O₂

Answer (2)

hope this helps!
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Helpp chemistry ..........