Aye yo who wann. a talk

Table sugar completely dissolved in water is an example of a?

Connect the whole numbers on the periodic table to indicate what they represent?

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 ?