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Questions and Answers
According to the text, what is chemistry?
According to the text, what is chemistry?
- The science of molecules and their transformations (correct)
- The study of matter and energy
- The study of elements and compounds
- The study of chemical reactions
What is the purpose of this unit?
What is the purpose of this unit?
- To classify substances into elements, compounds, and mixtures
- To perform stoichiometric calculations
- To understand the role of chemistry in different spheres of life (correct)
- To appreciate India's contribution to chemistry
Which term is used to describe the mass per cent of component elements in a compound?
Which term is used to describe the mass per cent of component elements in a compound?
- Percentage composition (correct)
- Molecular formula
- Molar mass
- Empirical formula
What is the difference between precision and accuracy?
What is the difference between precision and accuracy?
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What is the purpose of converting physical quantities from one system of units to another?
What is the purpose of converting physical quantities from one system of units to another?
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Which term is used to describe the mass per cent of component elements in a compound?
Which term is used to describe the mass per cent of component elements in a compound?
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What is the purpose of scientific notations and significant figures?
What is the purpose of scientific notations and significant figures?
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What are the three states of matter?
What are the three states of matter?
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What is the difference between atomic mass and average atomic mass?
What is the difference between atomic mass and average atomic mass?
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What is the purpose of stoichiometric calculations?
What is the purpose of stoichiometric calculations?
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