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irinina [24]
3 years ago
14

if an atom has two additional valence electrons than the original element has, what would be the charge of the atom

Chemistry
1 answer:
salantis [7]3 years ago
4 0
Answer: 2-

Each electron has a 1- charge, so two additional electrons would add a 2- charge to the previously neutral atom.
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Find the molar mass of this
kirill115 [55]

Explanation:

Given problem:

Find the molar mass of:

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Solution:

The molar mass of a compound is the mass in grams of one mole of the substance.

To solve this, we are going to add the individual atomic masses of the elements in the compound;

  Atomic mass;

       S = 32g/mol; O = 16g/mol; C = 12g/mol and H = 1g/mol

For  SO₃;

     = 32 + 3(16)

     = 32 + 48

     = 80g/mol

For C₁₀H₈

      = 10(12) + 8(1)

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7 0
3 years ago
Why does pepsinogen become activated at ph 2?
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3 years ago
If it take 20 second for 200cm3 of H25 to diffuse through a porovs pot,hours,long will it take 400cm3 of NH3 of diffuse under th
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Answer:

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5 0
3 years ago
Indicate if the following statements are TRUE (T) or FALSE (F):
Aleks [24]

Answer:

a) T

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d) F

e) T

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Explanation:

The w/v concentration is obtained from, mass/volume. Hence;

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3 0
3 years ago
N2 + 3H2 mc011-1.jpg 2NH3<br> What is the mole ratio of hydrogen to ammonia?
hjlf
1 N₂ + 3 H₂ = 2 NH₃

Mole  ratio <span> of hydrogen to ammonia :

3 moles H</span>₂  :  2 moles NH₃   or  3 : 2

hope this helps!
3 0
3 years ago
Read 2 more answers
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