Which atom's valence electrons experience the greatest effective nuclear charge? 1)the valence electrons in In
2)the valence electrons in Sr
3)the valence electrons in Te

What is the molar mass of potassium nitrate, kno3

Which of the following is most likely true about water in chemical solutions?

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 ?