Answer:
1) Redox reaction
2) none of the above
3) none of the above
4) precipitation
5) acid-base neutralization
Step-by-step explanation:
(1) Ba(ClO3)2(s)--->BaCl2(s) + 3O2(g)
In this reaction a single reactant produces (two or more)products which is a decomposition reaction.
But This is also a redox reaction, because Cl is reduced from
and Oxygen is oxidized . The answer is redox.
(2) 2NaCl(aq) + K2S(aq)--->Na2S(aq) + 2KCl(aq)
This reaction gives no insoluble precipitatwhich means, no reaction, despite the fact that it looks like a double replacement reaction. So the answer is none of the above.
(3) CaO(s) + CO2(g)--->CaCO3(s)
This is a synthesis (or combination) reaction where two or more reactants are formed out of 1 single product. So none of the above.
(4) KOH(aq) + AgCl(aq)---->KCl(aq) + AgOH(s)
This is a double decomposition reaction, also called a precipitation reaction, where two soluble salts react to form an insoluble salt and a soluble salt.
(5) Ba(OH)2(aq) + 2HNO2(aq)--->Ba(NO2)2(aq) + 2H2O(l)
An acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water.
This is a double replacement or acid/base reaction.