Which of the following best explains why you put KI and Pb(NO3)2 into two separate test tubes before mixing them? 1)to observe both solutions before the reaction
2)to predict the products
3)to make an accurate measurement of the amount of each solution
4)to make it easier to mix the solutions

(EDGE)

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.