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ziro4ka [17]
3 years ago
10

#1/ 81.8 grams carbon 18.2 grams hydrogen molar mass 132.0g/mol.

Chemistry
1 answer:
dlinn [17]3 years ago
4 0

Answer:

#2 Empirical formula _Na3S4O9____

Molecular formula ___Na6S8O18__

Explanation:

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4. Balance the following chemical equation. Say what the coefficients "a"
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Answer:

a = 4

b = 3

Explanation:

<u>SOLUTION :-</u>

Balance it by using 'hit & trial' method , and you'll get the answer :-

2Fe₂O + 3C → <u>4</u>Fe + <u>3</u>CO₂

⇒ a = 4 ; b = 3

<u></u>

<u>VERIFICATION :-</u>

<em>In reactant side of equation :-</em>

  • Number of atoms in Fe = 2×2 = 4
  • Number of atoms in O = 2×3 = 6
  • Number of atoms in C = 3×1 = 3

<em>In product side of equation :-</em>

  • Number of atoms in Fe = 4×1 = 4
  • Number of atoms in C = 3×1 = 3
  • Number of atoms in O = 3×2 = 6

Number of atoms of each element is equal in both reactant & product side of equation. Hence , the equation is balanced.

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