Calculate the number of nitrogen atoms in a sample of dinitrogen tetroxide . Be sure your answer has a unit symbol if necessary, and round it to significant digits. 150 g

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done