Answer:
B. F⁻
Explanation:
Which anion would bond with K⁺ in a 1:1 ratio to form a neutral ionic compound?
Select the correct answer below:
A. O²⁻. NO. K⁺ and O²⁻ form K₂O in a 2:1 molar ratio.
B. F⁻. YES. K⁺ and F⁻ form KF in a 1:1 molar ratio.
C. N³⁻
. NO. K⁺ and N³⁻ form K₃N in a 3:1 molar ratio.
D. S²⁻. NO. K⁺ and S²⁻ form K₂S in a 2:1 molar ratio.
The mass number is protons and neutrons. So I think it’s false
I think the correct answer from the choices listed above is option B. <span>24 mL of Mg burn in 32 mL O2 to produce 56 mL of MgO </span>does not show the law of conservation of mass. Volumes cannot be added because there are volume effects when you add different substances. So, the reactants is not equal to the product.
Answer:
D.) Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.
Explanation:
For the reaction:
3H₂(g) + N₂(g) → 2NH₃(g)
The enthalpy change is ΔH = -92kJ
This enthalpy change is defined as the enthalpy of products - the enthalpy of reactants. As the enthalpy is <0, The enthalpy of products is <em>lower </em>than the enthalpy of reactants.
Also, it is possible to obtain the enthalpy change from the bond energies of products - bond energies of reactants, thus, The total bond energies of products are <em>lower</em> than the total bond energies of reactants.
The rate of the reaction couldn't be determined using ΔH.
As the bond energy of ammonia is lower than bonds of nitrogen and hydrogen, <em>D. Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.</em>
I hope it helps!
He answers is B It equals the rate of the formation of SO3