Which of the following measurements has 2 significant digits? Select one: O a. 0.020 cm O b. 2.000 cm O c. 20.0 cm O d. 20 cm O e. 0.02 cm

Q: Determine the units for the following calculation (5 cm +3.2 cm)(12 cm) = O cm? O cm2 O units…

A: Units are the definite and standard measurement of same kind of quantities. It is used for making…

Q: proposed multiplication or division Is this possible2 result, yes () cm) (010 ) = ? 0.23 cm m km yes…

A: Multiplication of two length in cm and m can be done but we should keep in mind to write the unit as…

Q: 88. A small metal cube is 1.34 cm on each side and has a mass of 18.936 grams. What is the density…

A:

Q: Estimate one more place. Reading will be to the nearest 0.1 mL.             52.8 +/-0.1  mL…

A: Significant figures: These are the numbers that tell us about the correct measurements of the…

Q: 0n on uie properties of phosphoric acid in the ALEKS Data resource. Round your answer to 2…

A: Molarity is defined as number of solute present in 1000 ml of solution . Mole=…

Q: toluene, a colorless organic liquid, has a density of 0.8669 g/ml at 20 C. determine the spefic…

A: Specific gravity is the ratio of the density of a substance to the reference substance (water).…

Q: A bench press bar has a mass of 20.4 kg . How many lb is this?

A: Rule for significant figure in mathematical operations :-1 Addition and Substraction round by the…

Q: what decimal power do the following abbreviations represent: (a)m, (b)k,(c)m,(d)n, and(e)u?

A: Please find the attached images for the answer

Q: Measurements have shown that the concentration of salt in seawater is 35.5 g·L 1 '. Calculate the…

A: Concentration is basically the availability of the solute per unit volume of solution. It is usually…

Q: Mn³+ + e- → Mn²+ E = +0.32 v2+ + 2e → V E = -0.49 - (the answer should be entered with 3 DIGITS; and…

A: Ecell =Ecathode- Eanode Cathode is  Vanadium  anode is Manganese

Q: An aluminum cylinder is 5em long and has a mass of 42g. If aluminum has a density of 27009/m3, how…

A: step 1: Volume is defined as the ratio of the mass to the density

Q: 02 The exponential notation of 385,500 to one significant figure is: A. 3.8x 10 B.3.8x 10 C3 10…

A: Scientific notation: Scientific notation or exponential is a way of expressing numbers in decimal…

Q: Please refer to this table underneath. I have the answer for Part A I need help with Part B & C.…

A: Step:IGiven,Part B     Temperature in °F=-37.0°FFind out     Temperature:          in K=?…

Q: what is the number of significant figures in eacch of the following measuredments quantities: a…

A: We have to determine the number of significant figures in the given measured quantities-351 g0100…

Q: Q6. Perform this addition to the correct number of significant Q figures: 8.32 + 12.148 +0.02 (a)…

A: Q6. While adding or subtracting numbers, the answer should contain as many decimal place as the…

Q: Part D 805 yd to km Express your answer using three significant figures. L3 = %3D

A:

Q: MISSED THIS? Read Section 1.8 (Pages 26 - 33) ; Watch KCV 1.8, IWE 1.8. A gas can holds 5.8 gallons…

A:

Q: easured to be 4.93. Round your answer to 2 significant digits.

A: [H+] = 10^-pH  [H+] = 10^-4.93 [H+] = 0.0000117M

Q: 9. Express 96.342 m using 2 significant figures The answer is

A: Rules for determining significant figures : 1) All non zero digit are significant. Example, 123…

Q: Perform the following calculations. Round the answers. a. 24 m × 3.26 m   b. 120 m × 0.10 m   c.…

A: Given, a. 24 m × 3.26 m    b. 120 m × 0.10 m    c. 1.23 m × 2.0 m    d. 53.0 m × 1.53 m

Q: (a) Calculate the density of a 374.5-g sample of copper if it has avolume of 41.8 cm3. (b) A student…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: change 18h Dry nswer contains a unit symbol. Round your answer to 3 significant digits. μ ロ･ロ X 010…

A: Given,  □Hfus = 4.39 kJ= 4390 J T = -112 K = 161 K Mass of CS2 = 400 g Molar mass = 76 g/mol Mole…

Q: Rewrite this measurement with a simpler unit, if possible. g cm 6.5 3. cm Note: If you can simplify…

A:

Q: A solid aluminum ball (density= 2700 kg/m³) is suspended in air from a scale, which reads 13.06 N.…

A: This is a pretty small sphere, so will change density to 2.7g/cc. (13.06 - 8.706) = fluid weight of…

Q: 6. A bicycle has a 56 cm frame. What is this frame size equal to in inches? (1.00 in = 2.54 cm. Note…

A:

Q: Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when…

A: Given     mass of object = 149.8 g  Volume of object = 12.1 mL   To find : density of an object

Q: Round off each number to the indicated number of significantfigures (sf): (a) 0.0003554 (to 2 sf);…

A: The meaningful representation of numbers is given by the concept of significant figures. Significant…

Q: 1 E2

A: Precision in graduated cylinder means the to what decimal place the small markings between the big…

Q: Pluto's gravity is 0.7 ms2 and Neptune's gravity is 11.0 ms2. On which planet or dwarf planet would…

A: Option C is correct. ( No difference )

Q: Aluminum has a density of 2.70g/mL. What volume is occupied by a block of aluminum that weighs 4.32…

A: Given data:

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

A: Since we know that 1 m = 100 cm  hence cubic the above values we get  (1 m)3 = (100 cm)3  => 1 m3…

Q: (a) Multiply 2.334 cm and 0.320 cm.(b) Divide 55.8752 m by 56.53 s.

A: (a) Multiply 2.334 cm and 0.320 cm. Since the number of significant digits in 2.334 cm is 4 and in…

Q: Round to 3 significant figures 0.0014851

A: Significant figures refer to the number of digits that has contribution to the value or measurement.…

Q: When scientific measurements are made they are reported using: Select one: a. all certain digits…

A: Scientific measurements are done to get the accurate result . Hence when the report it , it is done…

Q: 1. Change 9 ft 3 into cm and 344 lb. to kg (round off to the tenths)

A: Given,  Distance = 9 ft 3 in Also,  Mass = 344 lb  (a). Convert the 9 ft 3 in to cm = ? (b). Convert…

Q: An individual weighs 81.4 kg and is 1.78 m tall. (a) What is the person's equivalent measurement in…

A: (a) Given that the person's weight is --- 81.4 kg We know, 1 kg = 2.20462 Pound Or, 81.2 kg = (81.2…

Q: If the mass of an empty 9.7 ml pycometer is 10.1 nd the mass of the same pycometer with an unknown…

A:

Q: Osmium (Os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and…

A: Complete solution is given below in next step

Q: Round 426.1016 to four significant digits

A: Rules for rounding significant digits :- 1) If the rightmost digit to be removed is less than five ,…

Q: C. 136 Q3. Accuracy refers to how close a measured number is to A. zero C. Other measured numbers…

A: 3. Sol :-  Given statement is :  Accuracy refers to how close a measurement number is to :  A. zero…

Q: See picture for wuestion

A: The numbers are given as follows: 4.0×10-2 m 8.1×102 m

Q: What are the apparatus used to measure objects? What are they measuring (ex. Ruler measures the…

A: There are many apparatus used for measuring objects like for measuring length of an object,…

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

A: Given number : 73. V/m  V/m = volte per meter  0.01m = 1cm

Q: 15 | he individual markings of a0-milliliter graduated cylinder are a of a apart. This allows one to…

A: A graduated cylinder is a standard instrument used to measure the volume of reagents in…

Q: 1. Approximately, what is the percent uncertainty in the measurement 3.70 + 0.25m? 2. Convert 1.57m…

A: 3.70+/-0.25m this the range is from 3.70-0.25 to 3.70+0.25 i.e. 3.45 to 3.95 respectively the…

Q: proposed multiplication or division cm = 7 cm 8.0 m 10m ? Is this possible? O yes no no yes no…

A: ->Multiplication and division of different units are possible but addition and subtraction of…

Q: Correct! Now, determine the uncertainty value for the measurement. 7.48 ± A mL 7 SUBMIT UNCERTAINTY…

A: Uncertainty is the half of the smallest possible measurment that can be made with that glassware.

Q: Match the correct prefix with the factor. A. 103 B. 109 C. 10-9 D. 10-2 V C E. 10-3 F. 102

A: To match the correct meter prefix: The table given is, n A. 103 k B. 109 m C. 10-9 c D.…

Q: In the experiment on determining the density of liquids, a pycnometer was used. The volume of the…

A: A pycnometer is used for measuring the volume and the density of liquid .

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.