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OlgaM077 [116]
2 years ago
13

PLEASE HURRY!! WILL GIVE BRAINLIEST!!!!

Chemistry
1 answer:
Snowcat [4.5K]2 years ago
8 0

Answer:

a

Explanation:

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A salt bridge is used to provide electrons a path to flow from the electrode of one half-cell to another. TRUE FALSE
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It is false. The salt bridge is not a path for electrons, but a path for ions to flow from one half-cell to another. It help to balance the charge between the oxidation and reduction vessels.
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Why cant (NaCl) light the bulb until the NaCl is dissolved in water. *
Aneli [31]

Answer:

NaCl will only conduct electricity in solutions

Explanation:

For electrical conduction, free mobile electrons as seen in most metals must be present or ions which are charged particles must be available for solutions and molten substances.

  • Sodium chloride is an ionic compound without free mobile electrons or ions despite being ionic.
  • It will maintain a subtle and unique charge stability when in solid form.
  • In solid, the ions are not free to move and remain locked up in the solid mass.
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What element does silver nitrate and sodium phosphate form when combined?
creativ13 [48]
AgNO3+Na3P04=Ag3PO4....
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2 years ago
Where is most of the high-level waste from nuclear reactors stored?
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<span>Where is most of the high-level waste from nuclear reactors stored?

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How much heat is absorbed/released when 25.00 g of NH3(g) reacts in the presence of excess O2(g) to produce NO(g) and H2O(l) acc
Novay_Z [31]

Answer:

429.4 kJ are absorbed in the endothermic reaction.

Explanation:

The balanced chemical equation tells us that 1168 kJ of heat are absorbed in the reaction when 4 mol of NH₃ (g) react with 5 mol O₂ (g).

So what we need is to calculates how many moles represent 25 g NH₃(g) and calculate the heat absorbed. (NH₃ is the limiting reagent)

Molar Mass NH₃  = 17.03 g/mol

mol NH₃ = 25.00 g/ 17.03 g/mol = 1.47 mol

1168 kJ /4 mol NH₃  x 1.47 mol  NH₃ =  429.4 kJ

6 0
2 years ago
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