In Scotland, the legal blood alcohol limit is 220 μg of alcohol per 1 L of breath. What is this alcohol concentration in parts per billion, ppb?

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%

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

Which of the following are correct values for the ideal gas laws constant r