The electronic configuration of elements X, Y and Z are as follows: X=2,8 Y= 2, 8,7 Z= 2,1 What would be the chemical formula of the ionic compound formed? A. XZ B. ZY C. XY D. Z2Y

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?

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

The biosphere of the earth is made up of what compound? organic or inorganic?