Adouble-replacement reaction takes place when aqueous k2so4 reacts with aqueous pb(no3)2. you would expect the products of this reaction to be and

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife