Concept explainers
(a)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via
chemical bonds. - Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same
atomic number for all the atoms present in it.
To identify: whether
(b)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify: whether
(c)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify: whether
(d)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify: whether
(e)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify : whether
(f)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify: whether
(g)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify: whether
(h)
Interpretation:
From the given chemical formula, whether it is a compound or element has to be identified.
Concept introduction:
- Compound is a chemical substance having combination of various elements in a definite ratio held together via chemical bonds.
- Element is a chemically unbreakable simplest form of matter. It is composed of only single type of atom with same atomic number for all the atoms present in it.
To identify: whether
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Chemistry: Atoms First
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