Balanced Eqn
2
C
2
H
6
+
7
O
2
=
4
C
O
2
+
6
H
2
O
By the Balanced eqn
60g ethane requires 7x32= 224g oxygen
here ethane is in excess.oxygen will be fully consumed
hence
300g oxygen will consume
60
⋅
300
224
=
80.36
g
ethane
leaving (270-80.36)= 189.64 g ethane.
By the Balanced eqn
60g ethane produces 4x44 g CO2
hence amount of CO2 produced =
4
⋅
44
⋅
80.36
60
=
235.72
g
and its no. of moles will be
235.72
44
=5.36 where 44 is the molar mass of Carbon dioxide
hope this helps
Cu + 2NO₃⁻ + 4H⁺ → Cu⁺² + 2NO₂ + 2H₂O this is the balanced chemical equation in acidic medium.
<h3>What is Balanced Chemical Equation ?</h3>
The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.
Now write the given equation
Cu + NO₃⁻ → Cu⁺² + NO₂
Here we can see that all atoms other than O and H are balanced.
In the given equation oxidation number of Cu changes from 0 to +2.
In the given equation oxidation number of N changes from 5 to 4.
Now multiply by 2 with NO₃⁻ and NO₂.
Cu + 2NO₃⁻ → Cu⁺² + 2NO₂
Now ad the water molecules in right hand side to balanced the O atoms.
Cu + 2NO₃⁻ → Cu⁺² + 2NO₂ + 2H₂O
Now add 4H⁺ on the left hand side to balance the H atoms.
Cu + 2NO₃⁻ + 4H⁺ → Cu⁺² + 2NO₂ + 2H₂O
Thus from the above conclusion we can say that Cu + 2NO₃⁻ + 4H⁺ → Cu⁺² + 2NO₂ + 2H₂O this is the balanced chemical equation in acidic medium.
Learn more about the Balanced Chemical Equation here: brainly.com/question/26694427
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I believe the most massive element that is naturally occurring on Earth is uranium (U), which has a nucleus of 92 protons
Answer:
mixture of hydrochloric and nitric acid can dissolve noble metals, such as gold and platinum.
Explanation:
