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Questions and Answers
What is the significance of the formula CaCO3 in quantitative terms?
What is the significance of the formula CaCO3 in quantitative terms?
- It represents the atomic weights of calcium, carbon, and oxygen
- It represents 100 parts by weight of calcium carbonate (correct)
- It represents one molecule of calcium carbonate
- It represents the qualitative composition of calcium carbonate
Which of the following elements has a symbol that is not the first letter of its English name?
Which of the following elements has a symbol that is not the first letter of its English name?
- Sulphur
- Carbon
- Hydrogen
- Phosphorus (correct)
What is the rule for writing symbols when two elements have names starting with the same letter?
What is the rule for writing symbols when two elements have names starting with the same letter?
- A prominent letter from the element's name is added to the first letter
- The first letter is capitalized and the second letter is in lowercase (correct)
- The symbol is written in all lowercase letters
- The second letter of the element's name is capitalized
What is the qualitative significance of the formula CaCO3?
What is the qualitative significance of the formula CaCO3?
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What is the quantitative significance of the formula CaCO3 in terms of elements?
What is the quantitative significance of the formula CaCO3 in terms of elements?
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What is the significance of the symbol 'Ca'?
What is the significance of the symbol 'Ca'?
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What do the symbols for elements represent?
What do the symbols for elements represent?
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Why are only capital letters used as symbols for elements?
Why are only capital letters used as symbols for elements?
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What is the purpose of using symbols for elements?
What is the purpose of using symbols for elements?
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What is the quantitative significance of the formula CaCO3 in terms of calcium?
What is the quantitative significance of the formula CaCO3 in terms of calcium?
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