Question

question
how many significant figures are there in the measured quantity 64.00 g?
answer
five significant figures
three significant figures
two significant figures
four significant figures
i dont know

Explanation:

Step1: Recall significant - figure rules

Non - zero digits are always significant. Trailing zeros after a decimal point are significant.

Step2: Analyze 64.00 g

The digits 6 and 4 are non - zero and significant. The two trailing zeros after the decimal point are also significant.

Answer:

Four significant figures