The table shows the mass and volume of four different materials. Only one of these four materials will float in water.
Which will float in water?
Physical Properties
Sample
Mass Volume
Number
1
10 mL
2
10 mL
3
249 100 ml
4
160 9 100 ml
899
269
Select one
3

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.

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

How many molecules are in 6.0 moles of methane