Which is the stronger acid- sulfuric or ethanoic? What is the evidence for this? Please answer quickly

The minerals found in bones are deposited by living cells called

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.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?