Concept explainers
Which of the following are elements, which are molecules but not compounds, which are compounds but not molecules, and which are both compounds and molecules? (a) SO2, (b) S8, (c) Cs, (d) N2O5, (e) O, (f) O2, (g) O3, (h) CH4, (i) KBr, (j) S, (k) P4, (l) LiF
(a)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
(b)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
(c)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Cs is an element.
Explanation of Solution
Cs is merely an element. It is not a molecule or compound as in elemental form it does not combine with other Cs atoms.
(d)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
(e)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Explanation of Solution
O is an element.
(f)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Explanation of Solution
(g)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Explanation of Solution
(h)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
(i)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
(j)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Explanation of Solution
S is an element.
(k)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
(l)
Interpretation:
Concept Introduction:
Element is a free state of an atom and it is the simplest form of an atom.
Molecule is made of two or more atoms of same element or different elements. If atoms of same element combine to form a molecule then the molecule is called homonuclear molecule. If atoms of different element combine to form a molecule then the molecule is called heteronuclear molecule.
Compound is a stable chemical substance made of many such identical entities of heteronuclear molecules.
Answer to Problem 2.72QP
Explanation of Solution
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Chapter 2 Solutions
Chemistry
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