123.54 cm - 121.91 cm) * (0.5487 cm) = _________________cm2

Q: Do the following calculations to the correct number of significant figures: a.) 3.8 x 105-8.45 x…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 1. How many significant figures (1) 0.0044500 m (4) 1.00 × 10³ s are in each measurement? (2) 5.003…

A: All non-zero digits are significant.Zeroes in between two non-zero digits are significant.The…

Q: 75.5 dg =      write in scientific notation

A: Scientific notation is used to express a number in its decimal form multiplied by power of 10. They…

Q: Round 19047 x 10^-2 to 3 significant figures and put in scientific notation.

A: All zeros between non-zeros are significant. 10 raise to powers are non significant. Zeros after…

Q: An arctic ecologist measures the thickness of an ice floe. The thickness is 0.241 m. What is the…

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Q: A human hair is 75 um across. How many inches is this? STARTING AMOUNT ADD FACTOR ANSWER RESET *( )…

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Q: Express each answer in scientific notation in the units indicated.a. (1.26 × 1 0 4 kg) + (2.5 × 1 0…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: DATA SHEET QUESTIONS FOR PART 2 1. If you had a 50-mL graduated cylinder containing 25.0 mL of…

A: volume of cylinder after adding block= 32.81 mL

Q: Copper has a density of 4.4 g/cm3.  What is the volume of 6.83 g of copper? The volume of the…

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Q: 113. A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in the…

A: Given, graduated cylinder contains water = 20.0 mL Water level rises = 31.2 mL Total volume of water…

Q: 50. The angle iron shown to the right is made of steel with a density of 7.78 g/cm³. What is the…

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Q: A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid…

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Q: g 78.08 x 39. mL = mL g 2.09- -x 0.225 mL = g mL 283.41 g 0.37 ml = 0 m² 0

A: Rule of significant figures for multiplication/division : The answer will have same number of…

Q: coin is made of 10%(by weight) of copper. this coin has diameter of 10 mm and thickness of 2 mm and…

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Q: QUESTIONS If 20.0 Cal make an ounce, how many ounces of formula should a baby drink per day if the…

A: The heat gained or lost by matter is given by,q=mc∆Twhere,m=mass of the substancec=specific heat…

Q: 1000 900 800 700 600 500 400 300 200 100 A sample of liquid has a measured volume of 561 mL. 1. How…

A: Given : volume of sample = 561 ml To find : 1). Significant figures 2). Scale divisions in ml 3).…

Q: An object will sink in a liquid if the density of the object is greater than that of the liquid. The…

A: It is known that an object will sink in a liquid if the density of the object is greater than that…

Q: 3. The number of significant figures in 0.090900 * 10^-4 is

A: Rules for finding number of significant digits are:1) All non zero digits are significant2) Zeroes…

Q: Gold has a density of 19.3 g/cm^3, If you have a gold bar with a volume of 44 cm^3, what is its…

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Q: 2. A procedure calls for 1.5 lb of hexane, a liquid with a density of 0.6594 g/mL. Rather than weigh…

A: Mass of hexane taken = 1.5 lb   Density of liquid hexane = 0.6594 g/ml  First of all , change mass…

Q: A certain liquid has a density of 2.67 g/cm3. 1340 g of this liquid would occupy a volume of…

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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.