Question

plese help me in this chemistry question

Answer 1

combination
double displacement
displacement
decomposition

Answer 2

a)- Combination reaction
Syntax --> A + B --> AB
(because calcium oxide and silicon oxide combine to form Calcium Silicate)

b)- Double Displacement reaction
Syntax --> AB + CD --> AC + BD
(because potassium hydroxide when reacts with HCl , Potassium displaces hydrogen as it is above hydrogen in the reactivity series)

c)- Displacement reaction
Syntax --> A + BC --> AC + B
(because copper when reacts with AgNO3 , Potassium displaces silver as it is above silver in the reactivity series)

d)- Decomposition reaction
(because Barium carbonate on heating decomposes to form Barium oxide and carbon dioxide)

Hope it helps you buddy and mark it as the brainliest answer. :)