Two descriptions for a sub-atomic particle are listed below: description 1: has a noticeable relative mass description 2: located inside the nucleus of an atom which sub-atomic particle or particles fit these descriptions? electrons only protons only electrons and neutrons protons and neutrons

How to convert a density of 0.791g/cm3 to lb/ft3

+= + + balance the equation on coefficients, ex. 1,1,1

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.