What type of chemical reaction does this equation represent? H3PO3 --> H3PO4 + PH3
O synthesis
O decomposition
combustion
O single replacement

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.