Elements that have a blank Electronegativity will have low metallic character

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3