Answer :
Final answer:
The mass of the beaker, 97.436 g, has 5 significant figures. The mass of the beaker and a metal block together would have the same number of significant figures as the exact mass provided.
Explanation:
The number of significant figures is determined by the precision of the measurement. In this case, the mass of the 100/150 mL beaker is 97.436 g, which has 5 significant figures, as all non-zero numbers and zeroes between them or following them (if the number is decimal) are counted as significant. However, you didn't provide the mass for the second scenario (100/150 mL beaker and metal block together), you'd follow the same principle - all numerals, including zeroes if they are between other numbers or after a decimal point, would be considered significant figures.
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