Which of tthe following is not true of isomers a.) they can have different desities b.)they can have different boiling points c.)they can have different melting points d.)they can have different molecular formulas

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!