Ineed asap test due in 1 this is a 15 point question! the erlenmeyer flask that was used in the titration below contained 25.0 ml of 0.1 m hcl. if 0.1 m naoh solution was used in this titration, which statement correctly explains point b on the curve? ( 1 ) this is the equivalence point of the curve. ( 2 ) 0.003 mol of oh– ions are present in the flask at this point. ( 3 )0.0005 is the number of excess moles of oh– ions at this point. ( 4 )0.0005 is the number of moles of h+ ions present at this point.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

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.

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph