NaH2 plus O2 equals Na plus H2o?
2NaH2 + O2 yields 2Na + 2H2O
Hydrochloric acid and sodium hydroxide yield salt and water H+ + Cl- + Na+ + OH- --> Na+ + Cl- + H2O Comment: In solutions you better leave unchanged ions ( Cl- and Na+) out of the balanced equation: called to be 'tribune ions' (people on the tribune don't take part in the 'match'): H+ + OH- --> H2O This looks simpler than: H+ + Cl - + Na + + OH- --> Na +…
How many moles of h2o are needed to consume 12 moles of na in the following reaction 2 na plus 2 h2o 2 naoh plus h2?
Since the given reaction is already balanced, simply divide 12 by the coefficient of Na in the equation, resulting in a quotient of 6. Multiply the coefficients of the original equation by 6 to obtain the answer: 6 X 2 = 12 moles of water required. (Note that the equation should have been written with mostly capital letters as follows: 2 Na + 2 H2O -> 2 NaOH + H2.)