Julio wants to find the volume of a small pebble. He drops it
into a graduated cylinder filled with 30.0 mL of water.
How is Julio most likely trying to determine the pebble's
volume?
by calculating water density
O by calculating water displacement
by measuring the pebble's dimensions
by measuring the pebble's mass

Part of molten rock at mid-ocean ridges

If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.