H2. Hydrogen gas.
A combustion reaction.
2NaH2 + O2 yields 2Na + 2H2O
2Rb(s) + 2H2O(l) --> 2RbOH(aq) + H2(g)
P + Na(OH) + H20 = NaH2PO2 + PH3
Cu+ H2O [OH + H3O= 2H2O]Copper plus more than one water = [CuOH + H3O]
2Na + 2H2O -> H2 + 2NaOH
2Na + 2H2O -------> 2NaOH + H2
It has been a long time, but I think it has to read: 2Na + 2H2O --> 2NaOH + H2 to be balanced.
HCl + NaOH = H2O + NaCl is already balanced.
NaOH + H2O ---> Na+(aq) + OH-(aq) + H2O or in Net Ionic terms NaOH ----> Na+(aq) + OH-(aq) There is no reaction. NaOH only ionizes.
H2C4H4O6(aq)+2OH−(aq)→C4H4O62−(aq)+2H2O(l)
Water can be broken down to oxygen and hydrogen and hydrogen can be ignited in oxygen to form water. 2H2O --> 2H2 + O2 (takes energy) 2H2 + O2 --> 2H2O (releases energy)
It is an eothermic type of reaction.
All you gotta do is make sure that theres equal amounts of a particular element on each side, eg. 2 sodium on the left, thus there needs to be 2 on the right. 2 Na + 2H2O ----> 2 NaOH + H2
Sulfuric acid plus sodium hydroxide gives sodium sulfate plus water.
A balanced chemical reaction.
An acid-base reaction yielding a salt and water.