How many grams of solid NaOH are needed to prepare 200. mL of a 5.00% by volume NaOH solution

A) 8
B) 10
C) 9
D) 7

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation

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?