What is the number of Co2 in a 220 gram

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa

What is happening when the water inside a kettle heats up and begins to boil