A student walks 15 km in 3 hours. What is the student’s average speed? A :45 km/h
B :5 km/h
12 : km/h
18 : km/h

An experimental procedure requires a 10 ml of acid to be dissolved

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?

What are the chemical names of these compounds? ke: mg3n2: reset next