Which of the following accounts for the observation that the pH of pure water at 37°C is 6.8?Answer A: At 37 ° C water is naturally acidic. Answer B: At 37 ° C the autoionization constant for water, Kw, is larger than it is at 25 ° C. Answer C: At 37 ° C water has a lower density than it does at 25 ° C; therefore, [H+] is greater. Answer D: At 37 ° C water ionizes to a lesser extent than it does at 25 ° C

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa