Consider the following operations on the number 8.83 x 10-².Without using a calculator, decide which would give a significantly smaller value than8.83 x 10-2, which would give a significantly larger value, or which would give essentially thesame value.8.83 x 10-2 +3.23 x 105 (same8.83 x 10-2-3.23 x 105 smaller8.83 x 10 2 x 3.23 x 105 larger v8.83 x 10-2/3.23 x 105 smaller

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Answered: Without using a calculator, decide…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 101QRT

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Using Table 1.1, but without using your calculator, decide which has the larger mass: 20. mL butane or 20. mL bromobenzene 10. mL benzene or 1.0 mL gold 0.732 mL copper or 0.732 mL lead
Consider the following operations on the number 8.97 x 10-2 Without using a calculator, decide which would give a significantly smaller value than 8.97 × 10-2, which would give a significantly larger value, or which would give essentially the same value. -96 8.97 x 10-2 + 7.00 x 10 same -2 8.97 x 10 7.00 x 10-6 smaller | -2 -96 8.97 x 10 х 7.00 x 10 larger 8.97 x 10-2 ÷ 7.00 x 10-6 smaller
Section 2-6 Carry out the following multiplications and divisions, expressing your answer in scientific notation to the correct number of significant figures. • NOTE: Enter numbers only; DO NOT SPELL the numbers. • Use a hyphen "-" for a negative sign. • DO NOT use a "+" symbol! . a) (3.200 × 107) × (1.10 × 10−²) × (2.3 × 10−7) b) 6.0x10-5 3.0x10³ X 10^ X 10^
I am told that when determining the number of significant figures, if the decimal place is absent, then you start counting from the first nonzero number on the right side and continue counting to the left until you reach the last digit. However, if the decimal place is present, start counting the first nonzero number from the left and continue counting to the right until the final digit has been reached. For example, the number 50 only has two significant figures, while the number 50.00 has four significant figures. However, how does the number 50 have two significant figures? If I have to start countingfrom the right because of the absence of a decimal place, and I have to begin with the first non zero number, I would have to start from 5 and there is nowhere to count further to the left. How does the number 50 have two significant figures?
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