To take liquid on a plane, they must be in a container with a maximum volume of 100ml select the item that cannot be taken on the plane 0.12 litres bottle of aftershave
75ml of sun cream
0.1 litre of mouthwash
0.095ml of shampoo

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?