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Natasha2012 [34]
2 years ago
11

A potassium atom (atomic number 19) and a bromine atom (atomic number 35) can form a chemical bond through a transfer of one ele

ctron. The potassium ion that forms has 18 electrons.
What best describes the bromide ion that forms?

It is a negative ion that has one less valence electron than a neutral bromine atom.
It is a positive ion that has one less valence electron than a neutral bromine atom.
It is a negative ion that has one more valence electron than a neutral bromine atom.
It is a positive ion that has one more valence electron than a neutral bromine atom.
Chemistry
1 answer:
liubo4ka [24]2 years ago
7 0

Answer:

A potassium atom (atomic number 19) and a bromine atom (atomic number 35) can form a chemical bond through a transfer of one electron. The potassium ion that forms has 18 electrons. What best describes the bromide ion that forms? It is a negative ion that has one more valence electron than a neutral bromine atom.

Explanation:

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What mass of metallic silver can form from 1.147 g of copper metal according to equation b?
Arisa [49]

Answer:

        \large\boxed{\large\boxed{3.894g}}

Explanation:

From similar question, equation (b) is

Molecular Equation:

  • Cu(s) + 2AgNO₃(aq) → Cu(NO₃)₂(aq) + 2Ag(s)

Net Ionic Equation:

  • Cu(s) + 2Ag⁺(aq) → Cu²⁺(aq) + 2Ag(s)

<u>1. Mole ratio:</u>

       \dfrac{2molAg(s)}{1molCu(s)}

<u>2. Convert 1.147 g of Cu(s) to moles:</u>

  • Atomic mass of Cu: 63.546g/mol

  • Number of moles = mass in grams / atomic mass

  • Number of moles = 1.147 g / 63.546 g/mol = 0.01805 mol Cu(s)

<u />

<u>3. Calculate the moles of Ag(s):</u>

    0.01805molCu(s)\times \dfrac{2molAg(s)}{1molCu(s)}=0.03610molAg(s)

<u />

<u>4. Convert 0.03610 mol Ag(s) to grams:</u>

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4 0
3 years ago
Please Help with this!!!!!
inessss [21]

Answer:

a) 4.69

Explanation:

v=mp

m=10.55

p=2.25

v=10.55/2.25=4.69

7 0
3 years ago
Read 2 more answers
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