The response is:
No, the equation is not balanced. Neither the Nitrogen (N) nor the Hydrogen (H) are in balance!
Here's the reasoning:
⓵ A properly balanced chemical equation means that the quantity of atoms on the reactants side matches that on the products side.
→ The equation lacks balance because there are 2 Nitrogen atoms and 2 Hydrogen atoms on the reactants side. In contrast, on the products side, there is only 1 Nitrogen atom and 4 Hydrogen atoms. Thus, the number of atoms on each side is not consistent!
Hopefully, this clarification is helpful; feel free to reach out if you have any further questions! ☻
The proportion of component A by mass for substance AB is given by 75%.
Further explanation
According to Proust's Comparative Law, compounds are made from elements that maintain the same Mass Comparison, ensuring that compounds have a consistent ratio of elements.
The empirical formula presents the mole ratio of elements forming a compound.
In the case of substance AB₂, 60.0% of its mass is attributed to A.
For instance, if the mass of AB₂ is 100 grams, then the mass of A would be 60 grams, and the mass of B would be 40 grams, divided according to the coefficient in compound AB₂ which is 2, leading to 20 grams.
Thus, for compound AB, the total mass is the sum of mass A and mass B, which equals 60 grams plus 20 grams, resulting in a total mass of 80 grams.
Consequently, the percentage of compound A calculates to (60: 80) = 75%.
Answer:
The proportion of the family's overall yearly electricity that is attributed to running both air conditioners over the summer months is = 19.4 %
Explanation:
Monthly average electricity usage = 900 kWh
The family utilizes two window air conditioners to cool their residence during summer for three months.
The electricity usage for a single window-unit air conditioner = 350 kWh
The total power utilized by both window-unit air conditioners = 350(2) = 700 kWh
The total power consumed by two air conditioners for the summer months = 700 (3) = 2100 kWh
The annual total power consumption = 900 (12) = 10800 kWh
The percentage of the family's total annual electricity for operating the air conditioners during summer = 
= 19.4 %
