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
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<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.
Answer:
1- there are three positive ions
2- there are four negative ions
3- check below
Explanation:
1- I say three cations because there are 2 atoms of H (H has a charge of +1) and 1 atom of S (S has a charge of +6 in this compund) (cations are positive ions)
2- There are four anions because there are 4 atoms of O (O has a charge of 2- in this compound) (anions are negative ions)
3- Sorry, can you elaborate on the last question? I don't understand it.
I think that it is qualitative data
Iron will have a +2 charge (hence the name iron(II)), and chloride ions will have a -1 charge, meaning to balance it, you need two chloride ions to each iron, making the formula FeCl2.
There is one iron ion in each molecule, meaning it is one to one with the molarity:
1 iron ion * (0.0550 moles/liter) = 0.0550 moles iron/liter = 0.0550M Fe
There are two chloride ions in each molecule, meaning it is two to one with the molarity.
2 chloride ions * (0.0550 moles/liter) = 0.110 moles chloride/liter = 0.110M Cl