A certain reaction X + Y → Z is described as being first order in [X] and third order overall. Which of the following statements is or are true? (i)The rate law for the reaction is: Rate = k[X][Y]2. (ii)If the concentration of X is increased by a factor of 1.5, the rate will increase by a factor of 2.25. (iii)If the concentration of Y is increased by a factor of 1.5, the rate will increase by a factor of 2.25.

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

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.

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest