7. The equation below shows the decomposition of lead nitrate. How many grams of oxygen are produced when 6.2g NO, is formed?
2Pb(NO3)2 → 2P50 +4NO2 +02

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Chemistry worksheet - i am not sure what they are asking for exactly?