(a)
Interpretation: The fixed notation and correct number of significant figure has to be expressed.
Concept introduction:
Scientific notation expression: A number is expressed as the product of two numbers:
Significant of zeroes:
- Zeroes between two other significant digits are significant.
- Zeroes to the right of a nonzero number, and also to the right of decimal place, are significant.
- Zeroes that are placeholders are not significant.
(b)
Interpretation: The fixed notation and correct number of significant figure has to be expressed.
Concept introduction:
Scientific notation expression: A number is expressed as the product of two numbers:
Significant of zeroes:
- Zeroes between two other significant digits are significant.
- Zeroes to the right of a nonzero number, and also to the right of decimal place, are significant.
- Zeroes that are placeholders are not significant.
(c)
Interpretation: The fixed notation and correct number of significant figure has to be expressed.
Concept introduction:
Scientific notation expression: A number is expressed as the product of two numbers:
Significant of zeroes:
- Zeroes between two other significant digits are significant.
- Zeroes to the right of a nonzero number, and also to the right of decimal place, are significant.
- Zeroes that are placeholders are not significant.
(d)
Interpretation: The fixed notation and correct number of significant figure has to be expressed.
Concept introduction:
Scientific notation expression: A number is expressed as the product of two numbers:
Significant of zeroes:
- Zeroes between two other significant digits are significant.
- Zeroes to the right of a nonzero number, and also to the right of decimal place, are significant.
- Zeroes that are placeholders are not significant.
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Chemistry & Chemical Reactivity
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