Which of the 0.10 M aqueous solutions has the lowest pH? Explain. A. KCN, Ka of HCN = 4.0×10−10
C. NaC2H3O2, Ka of HC2H3O2 = 1.8×10−5 E. NaCHO2, Ka of HCHO = 1.8×10−4
B. NH4Br, Kb of NH3 = 1.8×10−5 D. NaClO, Ka of HClO = 3.2×10−8

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?