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Who worked out the process for obtaining aluminum from bauxite ore?     

For the second-order reaction below, the initial concentration of A is 1.34 M. If k = 7.61 × 10−4 M1s−1, what is the concentration of A after 18.3 minutes?     2A → B    rate = k[A]2      

 What volume of 0.2045 M NaOH is necessary to titrate 50.00 mL of 0.1177 M acetic acid?       

What is the coordination number of the central metal ion in [Cr(en)2(OH)2]NO3? (en = H2NCH2CH2NH2)   

“If a chemical system at equilibrium is disturbed by adding a gaseous species (reactant or product), the reaction will proceed in such a direction as to consume part of the added species” is a statement of    

Predict the signs of ΔS and ΔH for the evaporation of water at 295 K.  

 An ore is     

The main group metals in Group 2 are referred to as the       

 A Lewis acid is defined as a(n)    

What is the pH of 6.5 × 10–5 M KOH(aq) at 25°C?