Hydrogen is released and sodium chloride&sodium hydroxide remain in solution.
A salt forms. And also hydrogen gas. It is a very explosive, uncontrolable reaction!
Sodium chloride is dissolved in water and dissociated in ions.
mix hydrochloric acid with sodium hydroxide
It reacts
2Na + 2HCl -------> 2NaCl + H2
When sodium hydroxide and hydrochloric acid are mixed together, they undergo a neutralization reaction, forming water and sodium chloride (table salt) as products. This reaction is highly exothermic, meaning it releases a significant amount of heat. It is important to handle this reaction with caution due to the potential for splashes and heat generation.
If you mix sodium thiosulfate and hydrochloric acid it makes sulphur + sulphur dioxide + Sodium chloride and water · 2HCl + Na₂ S₂O₃ -> 2NaCl + SO₂ + S + H₂O It also forms a collide which is a mixture when particles don't settle
Nothing
Yes, the precipitate will be salt and the clear liquid water.
no change
The reaction is:Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
it makes hydrogen