8. Differentiate between:
a. Monatomic and Polyatomic molecules
b. Mixtures and compounds
Equation and chemical formula
Answers
a] The terms monatomic and polyatomic describes the atomicity of molecules or ions. Atomicity is the number of atoms present in a molecule or an ion. ... Monatomic ions are composed of a single atom whereas polyatomic ions are composed of two or more atoms per ion. These ions can be either cations or anions.
b] A mixture is formed when two or more substances are physically mixed together. A compound is formed when two or more substances are chemically combined through a chemical reaction. ... Unlike mixtures, compounds can only be formed if the substances are combined in certain fixed ratios.
c] A chemical formula is the combination of atomic symbols that designate a particular chemical compound, or a substance with two or more different elements. ... A chemical equation shows one or more chemical compounds (reactants) being converted into different chemical species called products.
Answer:
a. Monatomic : Monatomic ions are composed of single atoms.
Polyatomic: Polyatomic ions are composed of two or more atoms .
b. Mixture : A Mixture is formed when two or more substances are physically mixed together.
Compound : A compound is formed when two or more substances are chemically combined through e chemically reaction.
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