What is the conjugate base of the following acids? a) HClO4 b) NH4 + c) H2O

d) HCO3 –

3. What is the conjugate acid of the following bases?

a) CN- b) SO4 2- c) H2O

d) HSO4-​

Iam in desperate need of with this !

How would you reduce the volume of gas

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.