In which of the following pairs of numbers does each member of the pair contain the same number of significant figures? Oa. 70.50 and 10960 а. Ob. 0.0806 and 960,000 С. 0.03070 and 0.0670 Od. 20.006 and 462

Q: Green plants use light from the Sun to drtve photosynthesis. Photosynthesis is a chemical reaction…

A: Given data photosynthesis reaction : H2O+CO2→C6H12O6+O2    (unbalanced reaction) mass of CO2 react =…

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Q: How many grams of nitrogen reacted if 17.5 grams hydrogen also reacted? N2 (g) + 3H2 (g) 2NH3 (g)…

A: Given Mass of hydrogen reacted = 17.5 grams

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Q: Lindsay A major component of gasoline is octane (C,H,). When liquid octane is burned in air it…

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Q: A major component of gasoline is octane C8H18. When octane is burned in air, it chemically reacts…

A: The balanced equation for combustion of octane is given as - 2C8H18  + 25O2  => 16CO2 + 18H2O So,…

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Q: How do you determine how many significant figures should be in your answer?

A: Rules for counting significant figures:Count the number of significant figures in the decimal…

Q: Total U.S. farmland occupies 954 million acres. How many square miles is this? (1 acre = 43,560 ft2,…

A:

Q: A major component of gasoline is octane (C,H). When octane is burned in air, it chemically reacts…

A: Given :-  Octane + oxygen → carbon dioxide + water  Amount of O2 = 2.6 g  To calculate :-  Amount of…

Q: A balloon has a volume of 19.3 and 12.1 moles. The amount of moles decreases to 8.63. What is the…

A:

Q: In which pair of numbers do both values contain three significant figures? 540 and 544 50.4 and…

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Q: How many square miles are in a farm that occupies (4.07x10^2) acres? 1 acre 43, 560 ft and 1 mile…

A: We have to find the how many square miles are in 4.07 × 102 acres . Some basic conversion are ; 1…

Q: Write the numbers in scientific notation.   673.5 673.5= 6.735×102     ×10? ?= 6.735     0.034…

A: Introduction :  We have to write the numbers in scientific notation .

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

A:

Q: determine wheather the zero in each number are significant  2050  9.00x10^2 0.0530 0.075 300…

A: The given numbers are represented as follows: 2050 9.00×102 0.0530 0.075 300 285.00

Q: 67.52 g CF2C12 Express your answer to four significant figures and include the appropriate units. HẢ…

A: Mass of CF2Cl2, m = 67.52 g Molar mass of CF2Cl2, M = 120.9 g/mol

Q: (8.01-7.50)/3.002

A: On solving this type of questions we use BODMAS rule. B - Bracket O - Of D - Division  M-…

Q: A barrel of oil as measured on the oil market is equal to 1.333U.S. barrels. A U.S. barrel is equal…

A: Given information,     1 barrel  =  1.333 U.S. barrels     1 U.S. barrel  =  31.5 gal     $94.0 per…

Q: The density of a metal is 8.67 g/cm³. How many pounds are in 298.86 in3 of the metal? (You can use…

A: Given  Density of metal = 8.67 gram/cm3 Volume = 298.86 inch3 Mass in pounds = ?

Q: CHEMWORK Change the following measurement to the appropriate SI unit. The final unit required is…

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Q: Gaseous ethane (CH₂CH₂) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide (CO₂)…

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Q: 6.9 g H2O Express your answer using two significant figures. ΑΣΦ ? Ni = Submit Previous Answers…

A: Moles: It is one of the fundamental unit that is used to define amount of substance. It can be…

Q: When you perform the following operations, how many significant figures should your answer have?…

A: Given : 39.20 dm +  10.000 m  =?

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: e the molarity (M = moles/L) of the NaOH solution to the correct number of significant figures. %3D

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Q: How many.grams F in 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Number of moles is defined as given mass divided by molecular mass.

Q: What are the significant figures in  0.0915 moles

A: Applying concept of significant figures determination.

Q: Each of the following problems involve a geometrical shape, a math formula (provided) as well as…

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Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts…

A: Reaction takes place: Octane (C8H18) reacts with oxygen gas (O2) to produce carbon dioxide (CO2) and…

Q: YouTube Maps MyCSU Columbus... - B Homepage - Georg... W Microsoft Of MATTER mass percent…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: 9.44 % NaCl by mass Express your answer using two significant figures. ΑΣφ ? Submit Request Answer…

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Q: The number 37.84637 rounded to 5 significant figures is When 12.9 is subtracted from 64.657, the…

A: we have to complete the given statements

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

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Q: 13.5 % sucrose by mass Express your answer using two significant figures. να ΑΣφ 6.0

A:

Q: 16. A mixture is made by adding 20.42 g of substance A, 1.322 g of substance B, and 83.1 g of…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: -1 A certain liquid X has a normal freezing point of -9.00 °C and a freezing point depression…

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Q: the human body is approximately 60.% water, and one-half of the mass of the dry portion is protein.…

A: Given that human body is approximately 60% of water.

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

A:

Q: Gaseous ethane (CH3CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2)…

A: Well-balanced chemical equation:                                           2CH3CH3 + 7O2 → 4CO2 +…

Q: Water hardness is expressed as parts per million calcium carbonate. If there are 850 ppm of calcium…

A: 1 ppm = 1 mg/mL ; ( 1mg of solute is present in 1 mL of solution) If water is the solvent then: 1…

Q: A major component of gasoline is octane (CH₂). When octane is burned in air, it chemically reacts…

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Q: 10. The amount of spaces between particles of matter can be measured. How do we measure the space…

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Q: if a substance has a mass of 17.8 g per 709 mL then its density is ____g/mL give answer to 3 sig…

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Q: A α 1/B means: A. A is directly proportional to B B. A is inversely proportional to B C. None of…

A: In the given question we have to define the following notation.          A  ∝  (1/B)  this means the…

Q: What mass of NaCl to you need to dissolve in order to prepare 2.500 L of 0.325 M solution?

A: Given: Volume of solution = 2.500L Molarity of solution = 0.325M Calculate the moles of solute.…

Q: The chemical formula for barium oxide is BaO. A chemist determined by measurements that 0.035 moles…

A: Number of moles(n) of any substance can be calculated by dividing the given mass by molar mass. The…

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.