this chemical equation balances 2Na+ 2H2O 2NaOH+H2 how does this equation show the conservation of matter in a chemical reaction?

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

answer; (trauma);

answer; code of federal regulations;

answer; media advocacy;