When the following equation is balanced with the lowest whole number coefficients possible, what is the coefficient in front of
2 answers:
Answer: The coefficient in front of is '2'.
Explanation:
Coefficient is defined as number coming before the formula unit of molecule of a compound in chemical reaction.
From the balance chemical equation, 2 moles of aluminum are reacting with 3 moles of zinc chloride to give 3 moles of zinc metal and 2 moles of aluminium chloride as a product.
Here, the coefficient of the aluminum chloride is '2'.
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Answer:
Explanation:
4NH₃ (g) + 3O₂ (g) ⇒ 2N₂ (g) + 6H₂ O(1)
Δ
ΔH r =(2ΔH f(N 2 )+6ΔH f (H 2 O(l)))−(4ΔH f (NH 3 (g))+3ΔH f (O 2 (g)))
ΔH rex =[2×0+6×(−286)]−[4×(−46)+3×0]=−1716+186
ΔH rex =−1532kJ/mol
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Answer:vv
Explanation:
The expression for the deBroglie wavelength is:
Where,
is the deBroglie wavelength
h is Plank's constant having value
m is the mass of =
v is the speed.
Wavelength = 5400 Å =
Applying in the equation as:-