Phosphate buffer solution is purchased as a(n) 10x stock solution. The solution is more concentrated than the working stock. If tasked with making 75 mL of a 1x solution of PBS, how many mL of the stock solution would be needed

Heat flow inside earth activity i chose chemistry cause there is no science alert! the newspaper has been hacked, and all of the headlines have been changed to reflect old legends. it is your task to make sure they are corrected. choose one of the newspaper headlines. you will rewrite the headline and a one-to-two-paragraph article to make the news scientifically correct. be sure to include the following in your corrected newspaper article: new title reflecting correct information detailed information about the processes and tectonic plate interactions that are causing the geological event to occur real-world example of where to find the geological event on earth (picture and location) also review the grading rubric before you begin.

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal