a single replacement has one product and the double replacement has two products.
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In single replacement reactions, one element replaces another element in a compound to form a new compound and element. In double replacement reactions, the positive and negative ions in two compounds switch places to form two new compounds.
Combustion and single-replacement reactions are also redox reactions. In a combustion reaction, a substance combines with oxygen and releases energy. In a single-replacement reaction, one element replaces another in a compound, resulting in a change in oxidation states.
A single covalent bond involves sharing one pair of electrons between two atoms, while a double covalent bond involves sharing two pairs of electrons. Double bonds are stronger and shorter than single bonds, as the sharing of more electrons results in a stronger attraction between the atoms.
The reaction Ni + F2 -> NiF2 is a synthesis reaction where nickel reacts with fluorine to form nickel(II) fluoride. It is a combination reaction where two substances combine to form a single product.
A single-replacement reaction
Single replacement