Answer:
FeS + O2 - Fe,02 + SO2
Explanation:
You have to see that no of Atoms are equal on both sides or not.
FeS + O2 - Fe,02 + SO2
Ferrous is balanced on both sides and also sulphur but oxygen is not balanced .
Ino left side oxygen is 2 while on right it's 4.
So, we have to balanced Oxygen.
FeS + 2O2 - Fe,02 + SO2
Now see it's balanced (we insert 2 on left side to balance the oxygen)
Do you mean ATP (adenosine triphosphate)? The breakdown of glucose produces ATP and water, and ATP is then used to provide activation energy for other reactions in a cell.
Step 1:
Write molecular Formula,
Na₅P₃O₁₀
Step 2:
Assign Oxidation number to Na (which is +1) and O (which is -2), and X (unknown) for P.
(+1)₅ + (X)₃ + (-2)₁₀ = 0
Zero means overall charge on molecule is zero (Neutral).
Step 3:
Now solve for X,
(+5) + (X ÷ 3) + (-20) = 0
X ÷ 3 = -5 + 20
X ÷ 3 = +15
X = +15 ÷ 3
X = +5
Result:
Oxidation number of P is +5.
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The two samples will have the same density because they are the same substance. The volume will have increased just enough to balance the greater mass. Key Concept- When substances have the same volumes but different masses, the substance having the greatest mass will be the most dense.
The Octet rule is a general rule of thumb that applies to most atoms. Basically, it states that every atom wants to have eight valence electrons in its outermost electron shell.
