what effect is caused by inner electrons interfering with the attraction of outer electrons for the protons in the nucleus?

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

What is the empirical formula for c4h8o2

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?