Aphase change from a solid to a gas is called what

Covalent bonds are formed between metals and boiling points true or false

Based on the equation and the information in the table, what is the enthalpy of the reaction?

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.