When an aqueous solution at room temperature is analyzed, the [h+] is found to be 2.0 × 10−3 m. what is the [oh−]?

5.0 × 10−12 m

2.0 × 10−11 m

4.0 × 10−6 m

5.0 × 10−11 m

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

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?