a. Using the correct rules for multiplication/division and significant figures provide the answer for the following calculation. 6.98 x 89.44 = b. Using the correct rules for multiplication/division and significant figures provide the answer for the following calculation. 7831 x 76.987 = c. Using the correct rules for addition/subtraction and significant figures provide the answer for the following calculation. 7831 + 76.987 = d. Using the correct rules for addition/subtraction and significant figures provide the answer for the following calculation. 7831.67 + 76.987 =

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A: Given: The volume of a sheet of metal = 45.5 cm3 Width = 14.8 cm Length = 15.9 cm

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Q: A homogeneous mixture was prepared by mixing 0.90 g A, 105.7 g B and 48.17 g C. The volume is found…

A: Given, Volume of mixture = 56.6 cm3 Mass of A = 0.90 g Mass of B = 105 .7 g Mass of C = 48.17 g

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A: Given information: Mass (m) = 13.93 g Height (h) = 6.70 cm Diameter (d) = 0.99 cm

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Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

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Q: 1.  A 22.65-g sample of a solid is placed in a flask. Ethanol is added to the same flask having the…

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Q: The density of a liquid is 2.30 g/cm³. What is its density in lb/ft³? 1 in = 2.54 cm; 1 lb = 454 g 1…

A: Given, Density of a liquid = 2.30 g/cm3 Density of the liquid = ? lb/ft3 1 in = 2.54 cm 1 lb = 454 g…

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Q: Multiply 642.67 quarts by 4.3562. What is the answer in correct significant figures? 2. Convert the…

A: Here, Quatrz = 642.67 quatrz.

Q: A  person is 6 feet 4 inches tall; how many cm tall are they?  2.54 cm = 1 in. Report your answer…

A: The conversion factor for feet and inches is:1 feet = 12 inches Hence, 6 feet =12 X 6 inches…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.