Question

please answer me question no 7??

Answer 1

i) this is a combination reaction because two or more reactants combine to form a single product
Mg+O2➡️2MgO

ii)this is a decomposition reaction because a single reactant is decomposed into two or more products
H20➡️H2 +O2

iii)this is a displacement reaction because one atom or group of atoms displaces other group of atoms
Al+HCl➡️AlCl3 + H2


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