Calcium sulfate is only sparingly soluble. caso4(s) ⇌ ca2+(aq) + so42-(aq) for this type of dissolution reaction the equilibrium constant, also known as the solubility product, is denoted ks. in the reaction above, ks = 3.9 x 10-6. when an excess of the solid is dissolved in water what is the maximum concentration of ca2+(aq) in mol l-1?

3. if the dartboard below is used to model an atom, which subatomic particles would be located at z?

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.