3.-Express each answer in scientific notation and with the proper number of significant figures 1,027 611363.06 a. b. 217 903 118.7:2-35.5 = C. d. 28 x 47.3= e. (5.2 x 10) x (3.33 x 10 2)

The mass of a certain atom is 2.086 x 10°22 g. This is the same mass as 2.086 x 10-16 mg. 2.086 x 10-25 kg. 2.086 x 10-28 Hg. O 2.086 x 10-31 ng.

For the image attached be sure your answers have the correct number of significant figures plus show calculations

1.) There are exactly 2.54 centimeters in 1 inch. When using this conversion factor, how many significant figures are you limited to? A. unlimited number of significant figures B. depends on if you are using it in multiplication/division or addition/subtraction C. ambiguous D. 3 E. 1 2.)A room has dimensions of 10.0 ft × 20.0 ft × 8.00 ft. Given that there are three feet in a yard, what is the volume of the room in yd3? A. 178 B. 1.60 × 103 C. none of the above D. 59.3 E. 533 3.) What is the standard scientific form for the number 0.0002500? A. 2.500 x 104 B. 2.500 x 10-4 C. 2.50 x 10-4 D. 2.5 x 104

significant figures and units. 3. Perform the following calculations and report the answer with the correct number of A. (9.2030 g)(0.00230 g) + 0.1020 g² = 00²0211237 0.10205² 0.123292 B. 234.020 g- 184.08 g 382.402 mL-326.322 mL (1 fl oz = 29.6 mL) 4. An aluminum beverage can contains 12.0 fluid ounces of liquid. Express this volume in liters. 12. uffaz X 560 080ML 49.949 = 0.8905g/mL CHE 1011 29.6mL = 355.2 mL Ift:0² (1 in = 2.54 cm) 5. What is the volume, in cubic centimeters, of a brick that is 4.0 in x 2.7 in × 8.0 in? 4.0A x 2,54 cm = 10.16cm liAcc 207 + x 2.54cm = 60858cm هذا 8.0MAX 2.54cm ITA 20032cm So volume 20.32cm x 6.858cm x 200320 1415.84 cm³ 6. The S.I. unit of energy is the joule, J (1 J = 1 kgom²/s²). Another energy unit, the erg, was once in widespread use (1 erg = 1 gocm²/s²). Calculate the number of ergs in 1.0 J. Page 2 of 2

Determine the number of significant figures. 1. 3.4 / 0.025356 + 236.00 - 76.357  2. 5.6786 + 246.346133 + 0.3257413 - 0.9246435

Decide whether each proposed multiplication or division of measurements is possible. If it is possible, write the result in the last column of the table. proposed multiplication or division Is this possible? result O.P H yes (2.0 g)-(8.0 cm') = 7 D.D 0 no X (26 cm³²)-(0.26 m) = ? 8.0 m 7 0 1.0 m 2 yes no yes no ?

M Gmail YouTube = Maps O MEASUREMENT Counting significant digits when measurements are multiplied o... Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 764.45 g 0.39 mL = 786.4 mol 48.853 L 7.81 mol L X 4.25 L = = 0 g mL mol 0- mol x10 X Ś 0/5 Olivi.

C,D,E,F, and G

Question 2