Molecules of carbon dioxide are linear. what type of force exists between
these molecules?

What diagram shows the ionic compound of magnesium oxide

Why do cells appear different in distilled water than they do in 10% salt water?

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 ?