a. decomposition of copper(II) oxide
b. copper and silver nitrate (displacement; copper (II) compound formed.
c.magnesium and oxygen (synthesis)
d. hydrochloric acid and silver nitrate (double displacement)
e. magnesium plus hydrochloric acid (displacement)
f. iron and oxygen (synthesis; iron (III) compound is formed)
g. iron and sulfur (synthesis; iron (II) compound is formed)
h. calcium hydroxide and sulfuric acid (single displacement)
i. zinc and sulfuric (single displacement)
j. benzene (C6H6) and oxygen (combustion reaction)
k.octane (C8H18) and oxygen (combustion reaction)
2007-01-22 11:25:38 · 2 answers · asked by San Fran Kid 2 in Science & Mathematics ➔ Chemistry
a. CuO-->Cu(s) + (something which i can't remember)
b. Cu + 2AgNO3--> Cu(NO3)2 + 2Ag
c. 2Mg + O2--> 2MgO
d. HCl + AgNO3--> AgCl + HNO3
e. Mg +2HCl-->MgCl2 + H2
f. 4Fe + 3O2 -->2Fe2O3
g. Fe + S -->FeS
h. Ca(OH)2 + H2SO4 --> CaSO4 + 2H2O
i. Zn + H2SO4 --> ZnSO4 + H2
j. 2C6H6 + 15O2 --> 12CO2 + 6H2O
k. 2C8H18 + 25O2 --> 16CO2 + 18H2O
2007-01-22 11:55:29 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Na(s) is very reactive with water and even air. Metals + water -> H2 gas + alkali. So, 2Na(s) + 2H2O (l) -> 2NaOH(aq) + H2(g) Quoted: "reacts with an ion in aqueoues solution in the activity series" -- u're talking abt displacement reaction. The Na + H2O is a redox reaction, not a displacement reaction.
2016-03-28 21:47:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋