or more simply Al(OH) 3 (s) + OH – (aq) ==> [Al(OH) 4] – (aq) (amphoteric behaviour because it dissolves in acids too) calcium ion: Ca 2+ (aq) + 2OH – (aq) ==> Ca(OH) 2(s) gives a white precipitate. Lv 7. 2 Al + 6 H2O -----> 2 Al(OH)3 + 3 H2. Rebecca. It is definitely +3. 2 1. The Al-NaOH-composited eGaIn and reaction products were analyzed separately. 0 0. It is a white solid ionic compound consisting of sodium cations Na + and hydroxide anions OH −. Lv 5. 1 decade ago. Design of the liquid metal-based smart bandage. Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. You can sign in to vote the answer. 0 0. redbeardthegiant. $$\ce{3NaNO3 + 8Al + 5NaOH + 18H2O -> 8Na[Al(OH)4] + 3NH3(g)}$$ How does ammonia evolve here? I there a logical way to deduce this, or should one just memorize that "Al and Zn reduce $\ce{NO3-}$ to ammonia in basic solutions"? Also, the reaction of Al + NaOH will be VERY exothermic. Normally, a smut layer will be formed resulting from the reaction of NaOH and Al. Direct link to this balanced equation: Instructions on balancing chemical equations: Enter an equation of a chemical reaction and click 'Balance'. Its internal side was composed of Al-NaOH-composited eGaIn and the … skipper . Join Yahoo Answers and get 100 points … Al And Naoh. aluminium has a lower tendency to lose or give electrons than sodium. It is definitely +3 Also, the reaction of Al + NaOH will be VERY exothermic. 0 4. 1 decade ago. It is not soluble in excess of NaOH. If aluminum is coated with an atomic layer of Hg to remove the surface oxide, you get the same result, Al reacts with water to liberate hydrogen and form Al(OH)3. Al: 2: 26.9815386: NaOH: 2: 39.99710928: H 2 O: 6: 18.01528: NaAl(OH) 4: 2: 118.00066788: H 2: 3: 2.01588: Units: molar mass - g/mol, weight - g. Please tell about this free chemistry software to your friends! The bandage was fabricated as a double-layer structure. 0 0. 2.5. Some researchers used HNO3 to remove this layer. How do you think about the answers? 9 years ago. P.S. of calcium hydroxide with sodium hydroxide IF the concentration of calcium ion is high. Get answers by asking now. Sign in. Al (s) + NaOH -----> Al2O3 +NaOH -----> thank you! ammonia acts as a catalyst. Source(s): chemical reactions al naoh: https://shortly.im/JT0ma. 1) #NaOH# is in solid state: No reaction. Ask question + 100. Al(s) + 3Na(OH)(aq)---> Al(OH)3(aq) + 3Na(s) 2 Al + 2 NaOH + 2 H2O → 2 NaAlO2 + 3 H2. Still have questions? Avantika. Lv 4. Source(s): https://owly.im/a9048. 2) Reaction is at room temperature, and the #NaOH# is aqueous: No reaction, as aluminium is a weaker reducing agent than sodium, i.e. Is it that we get hydrogen gas evolving in the reaction between Al and NaOH, and this gas reacts with the NO3 anion? Based on the thermal and expansion behavior of Al-NaOH-composited eGaIn, a smart water-triggered bandage was designed. 4 years ago.