In your lab group, you are investigating the properties of unknown types of matter. Your teacher gives you a "detective’s kit" consisting of: vinegar (an acid), ph strips, and water. She asks you to design experiments to determine the chemical properties of the unknowns. Select all of the experiments you might perform to observe chemical properties.

the answer to the question is "five to eight weeks after the test date"

answer:

i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!

answer:

aa so sweet!

explanation:

i hope this is okay xd