Round 20.56120 g to three significant figures.

Q: Density of alùminum is 2.7 g/cm3. Calculate the mass of a aluminum block has 10cm x 8mm x 9cm…

A: Given :-  density of Al = 2.7 g/cm3  dimension of Al block = 10cm x 8mm x 9cm  To calculate :-  mass…

Q: e. A typical giant panda (weighing 101.8 kg) spends half its day eating bamboo. What is the weight…

A: Given: Weight of panda = 101.8 kg

Q: 8.2 °C to 34.5 °C? (The

A: Here mass in kg, so first converted mass kg to g  mass = 6.98 kg  [ 1kg = 10^3 g ]  mass = 6.98 •…

Q: present conversion of "Nm" to its simplest MKS unit

A: In the given question we have to convert "N-m" into MKS unit, first of all we have to derive the…

Q: The proton has a radius of approximately 1.0 * 10^-13cm and a mass of 1.7* 10^-24g. Determine the…

A: The density can be calculated by dividing the mass of proton with its volume.

Q: Could the nugget be made of gold? Match the words in the left column to the appropriate blanks in…

A: Since the nugget is basically a small chunk of gold and other precious metals.

Q: Mercury has a density of 13.60 g/cm3. What’s the volume of 2.4 mole of mercury?

A: Given: The moles of Hg, (n) =2.4 moles. The density of mercury, (ρ) = 13.60 g/cm3

Q: The density of a gold nugget is 19.3 g/cm3. If the volume of the gold nugget is 0.00369 L, the mass…

A:

Q: A proton has a radius of approximately 1.0×10−13 cmcm and a mass of 1.7×10−24 gg. Determine the…

A:

Q: round 233.356 two significant figures

A: There are three rules on determining how many significant figures are in a number:Non-zero digits…

Q: Grivon atom 5tmm Gmtama 25Mm mamy Aet meutrons? धविक तुन्प्म बलऊणर४ ?

A: The symbol of the atom is Mn2557.

Q: 23892U > 23290TH + 42He2+ True False

A: Given that:  238U92 ......> 232Th90 + 4He22+ In given reaction , Helium particle is emitted.…

Q: Observer (a) Observer (b) CI, Observer (c) (d) Observer (e) (f) Observer Observer Br

A: Newman projection visualizes the conformation of a chemical bond of alkane from front to back, with…

Q: Determine the volume of a sample of copper in (m³) with a mass of 2.2 x 105 tons and a density of…

A:

Q: 1.1 A 50.0 g aluminium disk at 300 °C is placed in 200 cm' of ethyl alcohol at 10 °C, then removed…

A: A 50.0 g aluminium disk at 300 °C is placed in 200 cm³ of ethyl alcohol at 10 °C, then removed after…

Q: All of these are examples of chemical properties except:   A. Density  B.Solid formed   C. Color…

A: We need to determine which of the given properties is not a chemical property

Q: How does the uncertainty in measurements affects the outcome of an experiment?

A: Error has to do with uncertainty in measurements that nothing can be done about. If a measurement is…

Q: C3S2 express your answer in atomic mass units to two decimal places

A: Calculation for molar mass of C3S2:

Q: Given the density of silver (10.5 g/cm³) and gold (19.3 g/cm³) in Group IB/11, estimate the density…

A:

Q: Pellets of a certain substance are found to weigh 18.75 g. A volume of 13.5 mL of water is added to…

A: Given the weight of substance is 18.75 g. Volume can be calculated as follows:

Q: 49) Calculate the length of a copper wire having a diameter of 0.200 cm and a mass of 15.620 g. The…

A: The given values are: Diameter of wire is 0.200 cm.Mass is 15.620 g.Density of copper is 8.92 g/cm3

Q: Round 0.054321 to 4 significant figures

A: If the last digit in the given number is greater than 5 , then we have to add 1 to second last digit…

Q: Part B 54.6 g N2 Express your answer using three significant figures. VO AZ ΑΣΦ N = %3D Submit…

A: First of all calculate the moles of N2 by using formula - mole = mass/molar mass

Q: A 10.00 cm³ sample of potassium metal has a mass of 8.62 grams. Calculate the density of potassium…

A: Given : The volume of potassium metal = 10.00 cm3 Mass of potassium metal = 8.62 g Conversion of cm…

Q: How do I round 199.887 to thrtee decimal places?

A: Welcome to bartleby ! We have to round off to three decimal place .

Q: Solve each following problem and round to the correct number of S.F. a. 3.2265 x 1000. b. 630.265-…

A: 3.2265 contain 5 significant figures and 1000. contain 4 significant figures. The product should…

Q: A 14-karat gold ring contains 58.3% gold and weighs 12.41 g. If gold sells for $308.00/ounce, what…

A: Given: weight of ring = 12.41 g mass of percent of gold in ring = 58.3 % gold sells for =…

Q: visible light (490 nm ) Express your answer using three significant figures. > View Available…

A:

Q: Express 1 dm ^3 as cm^3

A: A unit dm3 stands for cubic decimeter. A unit cm3 stands for cubic centimeter.

Q: a) e= 4 てキこアル Mg=-12 %3D ヘ=z Ma=+3 Mg= t/z C) e =3 Me=-3 Mg n ナ/2 ms D) e=3 Me=-3

A:

Q: Determine the volume of a sample of copper in (m³) with a mass of 2.2 x 105 tons and a density of…

A: Density of the solution is equal to ratio of mass to volume of solution. Density=MassVolume Unit of…

Q: The radioactive element carbon 14 has a 1/2 life of 5750 years a scientist determined that the bones…

A: Radioactive decay follows first order kinetics.  We know that : k = 0.693/t0.5 ...(1)  Here, t0.5 =…

Q: Round each number as indicated  a) 8.3158 (3 SF) b) 25225 (3 SF)

A: General rules for the significant figures are: 1) All non-zero numbers are significant. 2) Zeros…

Q: A student weighed 60.00 mg of sulfur in the lab. Convert this mass to ug and dg

A: 1 mg = 1000 microgram (ug) 1 mg = 0.01 decigram (dg) Given amount = 60.00 mg

Q: Round 0.03259651 to four significant figures

A: Rounding off a number means neglecting some digit which will not change the value of the number…

Q: 5. A student tests an unknown substance that she believes to be a metal. Which of the following…

A: Metals are usually crystalline solids. In most cases, they have a relatively simple crystal…

Q: (a) Three spheres of equal size are composed of aluminum1density = 2.70 g>cm32, silver 1density =…

A: The density of a substance is related to the volume and mass of the substance as follows: Density =…

Q: The range of a Pena partide with IMeV energy in aluminum if its density is 2.698 gm cm and its mass…

A:

Q: CI CI (d) Observer

A: Here we have to write Newman projection of the following given molecules.  It is method to represent…

Q: 8. X is an unknown element at 1000 °C and 10.0 mmHg has a density of 8.8 x 104 g/L in gaseous state.…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: A piece at metal with a mes of 125 g n placed into a grahatest cyinder that conta 25 ofw ing the…

A: Using the Formula of density we can solve this problem.

Q: Comparing density: lithium thallium neon bismuth most similar to potassium least similar to…

A: Potassium is denoted by K. The density of K (potassium) is 0.862 g/cm3.

Q: 483.7K equals 210.7°F 756.7°F O 756.7°C 870.7°C 106

A: The question is related to conversion of temperature in  centigrade  in to temperature in Kelvin,…

Q: if there is uncertainty associated with mass readings, what is the uncertainty associated with each…

A:

Q: Complete each of the following equations by adding the missing species:

A: In radioactive reactions, the products can be obtained by adding or subtracting the mass numbers and…

Q: number 22, is this correct?

A:

Q: c. 0.756 g/mL to ng/L d. 9.647 x 10 nm/s to m/yr (Assume that the year is 2022).

A:

Q: Anything that is observed or measured about a sample of matter is called a(n)?

A:

Q: Part D 8887 m Express your answer using three significant figures.

A: We round a number to three significant figures in the same way that we would round to three decimal…