Multiple Choice
When potassium and chlorine react to form a neutral compound, what is the molecular formula of the product?
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3. Chemical Reactions
Molecular Formula
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Which of the following substances would you classify as a molecule?
A
K+
B
O2
C
NaCl
D
Fe
Verified step by step guidance1
Step 1: Understand the definition of a molecule. A molecule is a group of two or more atoms chemically bonded together, typically consisting of nonmetal atoms sharing electrons covalently.
Step 2: Analyze each substance given: K+ is a potassium ion, which is a single atom with a positive charge, not a molecule.
Step 3: NaCl is an ionic compound made of sodium (Na+) and chloride (Cl-) ions held together by ionic bonds, forming a lattice structure rather than discrete molecules.
Step 4: Fe is an element in its metallic form, consisting of metal atoms bonded in a metallic lattice, not forming molecules.
Step 5: O2 consists of two oxygen atoms covalently bonded together, forming a diatomic molecule, which fits the definition of a molecule.
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