Help here are the choices An atom or molecule that has a positive or negative charge

A compound that increases the hydroxide ions (OH-) when it is dissolved in a solution

A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water

A compound that increases hydrogen ions (H+) when it is dissolved in a solution

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.

Which of the following describes the entropy change as a solution is made from a liquid and solid

What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.