Ch3cooh+ca(oh)2= ch3cooh+hcl= ch3cooh+na2o= ch3cooh+k2co3=

ch3cooh+ca(oh)2=(сh3coo)2ca+2h2o;

ch3cooh+hcl=ch3coocl+h2;

ch3cooh+na2o=2ch3coona+h2o;

ch3cooh+k2co3=ch3cook + h2co3  => (co2  + h2o)

2h2o + 2na = 2naoh + h2

2naoh + h2so4 = na2so4 + 2h2o

3naoh + alcl3 = al(oh)3 + 3nacl

2al(oh)3 = al2o3 + h2o  (прокаливание)

2agno3 + ni = 2ag + ni(no3)2

ag(+) + e = ag(0) |2

ni(0) - 2e = ni(2+)|1

cdso4 + ni = реакция не пойдет.

2hcl + ni = nicl2 + h2

ni(0) - 2e = ni(2+)|1

2h(+) +2e = h2(0)|1

hg(no3)2 + sn = hg + sn(no3)2

sn(0) - 2e = sn(2+)

hg(2+) +2e = hg(0)

hg2(no3)2 + ag = не пойдет

mg(no3)2 + fe = не пойдет