9) A 57.14 g sample of NaOH, sodium hydroxide, is dissolved in enough water to make 2.050 liters of a stock solution. What volume of this stock solution is needed to prepare 1.000 L of 0.100 M NaOH?

Woah that’s a lot to read xd i’ll try though. i’ll get back t you if. i know the andwer

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.