The mass of 25.0 mL carbon tetrachloride, which was once used as a dry cleaning agent, is 39.8 g. What is the density of carbon tetrachloride?

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

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)