+→ your old bike left out in the rain starts to rust. what coefficients fill in the blanks to balance the equation? a) 1,2,3 c) 2,3,2 d)4,3,2

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 is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

What volume would 2.25 moles of ne has occupy at stp?