What is the change in enthalpy when 5.78 g of aluminum react with excess ammonium nitrate (NH4NO3) according to the equation 2AI+3NH4NO3-> 3N2+6H2O+AI2O3

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

How many atomic mass units are equal to 1.672×10−24 g of protons?