Can someone please help ;--; Which of the following ions will most likely form a precipitate when reacted with SO4^2- ? Answer choices are in the pic

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?

Intro biblioteca sunt 462 de carti cu 198 mai putine enciclipedii si cu 47 mai multe dictionare decat enciclopedii cate enciclopedii sunt in biblioteca

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.