Which of the following is an exothermic reaction?

a) tea dissolving in water
b) an explosion
c) sugar dissolving in water
d) the cooling of an ice pack

Diamond, graphite, and fullerenes share what property? a. they are all made of carbon (c) bonded to a metal. b. their shape. c. they are all made of carbon (c). d. they are all good conductors.

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?