On melting of ice , there is a decrease in volume instead of increase . why ?

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

What is a property of a double replacement reaction

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.