MCQ 2: The number of times a p* is heavier than an e is A. 18 times B. 184 times C. 200 times D. 1840 times

Q: A 23.6 g sample of CaSO, is found to contain 6.95 g of Ca and 11.1 g of O. Find the mass of sulfur…

A: To find mass of sulfur, first find out mass of S in 23.6g sample. Then use the relation to calculate…

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

A: let assume the initial concentration of C-14 as Co=100%

Q: Find the density of a neutron star with a mass of 1.97 solar masses and a diameter of 13 km, and…

A: Conversion units: 1 solar mass = 1.989×1030 kg 1 fm = 10-15m 1 km =1000 m 1 amu = 1.66×10-27 kg…

Q: laanpi he cheinl centrn u RoS %23 H.

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Q: Boron has 2 commonly occurring isotopes. 19.9% of Boron atoms have 55 neutrons and 55protons,…

A: We have to calculate the expected mass of B.

Q: 7 1 5.3Li +1H → 2 He+ O a. He O b. 2, 1H O C. 3 O On d. 4 4Be

A: A radioactive reaction can be balanced by summing up the atomic number and mass number on both sides…

Q: + 2n + 240 96 (a) 235U + in 137 54 92 12. (c) {He + 2§Mo + }H– (b) 232Th + ộn+ 2Cm 6 961 42- 90 100…

A: For balancing of nuclear reaction sum of mass numbers and atomic number must be same on both…

Q: a. 25.9% N, 74.1% O b. 43.4 % Na, 11.3% C c. 18.8 % Na, 29.0% C

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 'wrले लबकेबै (लि मुरकतकी कल् उ.।13 तकe्य ्भी काटोरे निवाण्र (ए Wान्न कन कर लाck्ये इर--8 s8. 698ाm

A: Answer: Given data: Moles of Nickel n=3.13mol Molar mass of Nickel M=58.69g/mol

Q: In our modern view of matter and energy, is the law of massconservation still relevant to chemical…

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Q: An atom of a particular element has a volume of 7.8*10^-31 m^3. What is this volume in cubic…

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Q: 11. Mrs. Folloso is preparing water in containers to sell in their water station. A. filtration B.…

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Q: What percentage of 145X (t1/2 = 768.7 h) would remain after 505.4 hours. Use the formula with 0.693…

A: Use first order kinetics formula to get the answer  Remaining percent=64.93%

Q: d) The atomic mass of silver is 107.8682 u. Determine the mass density of Ag in g/cm.

A: Given, Atomic mass of silver is 1o7.8682 u Lattice constant = 4.09 Ao  Mass density = ?

Q: What did the scientist say when he found 2 isotopes of helium?

A: There are two isotopes of helium. He-4 and He-3 are the two isotopes of helium.

Q: Rank the particles from most to least massive

A: In an atom; The mass of Neutron=1.693×10-27 kgThe mass of Proton=1.673×10-27 kgThe mass of…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: Total mass of chloroform in first sample = mass of C + mass of H + mass of Cl = (12.0+106.4+1.01) =…

Q: 70 Ge 70 Ga 32 31

A: Given  An unbalanced nuclear reaction  To find  The balance the nuclear reaction

Q: 00 Не Enter the percent volume of He in the visualization. MM[He]=4.003 g/mol, MM[N2]=28.01 g/mol.

A: In 1 mol of helium there is 6.022×1022 atoms of helium. So, for the given system the number of moles…

Q: The Law of Conservation of Masses is attributed to the scientist:

A: According to the Law of conservation of mass " the total mass remain conserved which means the total…

Q: 6) One mole of Ca and one mole of K contain A) The same number of protons B) Different amounts of…

A: One mole means the mass of a substance that contains Avogadro number of atoms. Avogadro number =…

Q: nat mass of

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: When working in the lab, I take the mass of a sample of ammonium (NH3) and I find it to have a mass…

A: The mass of ammonia is = 45.74 g The mass of nitrogen is =? The mass of hydrogen is =?

Q: ! 1 ső: F1 6 Q 5 ОН 3 CH2OH OH 2 ** F2 W #3 ОН 1 2 ОН 80 F3 E $ 4 a F4 R 07 8⁰ % 5 16 T A 6 MacBook…

A: ->An anomeric carbon can be identified as the the carbon bonded as the carbon bonded to the ring…

Q: chemical properties?

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Q: mass of the water

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Q: Ca is 42 Mass =

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Q: A certain element at 1000 °C and 10.0 mmHg has a density of 8.69 x 10" g/L in gaseous state. The…

A: Given  P = 10.0 mm Hg  T = 1000°C  T = ( 1000 + 273.15)K  T = 1273.15 K  Density = 8.69 × 10-4 g/L…

Q: Key Use the periodic table from an alternative universe below to answer the questions[ Symbol A 1A…

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Q: Fill in what is missing in the ZApen table. Use a separate sheet of paper for your answer. Element…

A: All things are provided in handwritten solution

Q: The atomic weight of silicon is 28.0855. Round this to 4 significant figures.

A: Given :- atomic wt. of Si = 28.0855  To determine :- given atomic wt. in 4 sig. figs

Q: a) 14N → 14C + 222FF+ b) 226 Ac → 22²Fr + c) 9°y → + -9ß d) 133CS + -iß →_ +y

A: Given : Different type of reactions  To find : missing part in the reactions Solution : As we know…

Q: Classify each statement as an observation, a law, or a theory.a. Chlorine is a highly reactive…

A: Law: A descriptive generalization about how some aspect of the natural world behaves under stated…

Q: A sample of carbon weighting 1.48 g was burned in an excess of air. The mass of carbon dioxide, the…

A: This can be calculated in context to the percent mass of carbon. The reaction occurring in the…

Q: 241 a. 05Am + He → 23n + b. 226RA 88Ra → He + c. - + dn Ba + 564 36 Kr + 3n 235x 129p 94

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per…

Q: Complete the following shorthand notations: ? (p, a) Li P (a, ?) s 242Cm (a, n) ? Mg (?,p) iNa 15 16…

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Q: The two naturally occurring isotopes of antimony are ¹2¹ Sb and 123Sb whose exact isotopic masses…

A: Given: Average atomic mass of Sb is 121.8 amu. Isotopic mass of 121Sb is 120.904 amu. Isotopic mass…

Q: j. 1630 + 1630 → k. 6228NI + 'on →. I. + *2He → 63 29Cu + °1B

A: The given equations have to be complete,

Q: 44) Which has the highest sub energy level? a. K b. L c. M d. N

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Q: 14. In the equation 228 90Th 22891PA + X which particle is represented by X?

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Q: Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm…

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Q: 3235 92U > 234 90TH + 4 2HE2+ (a) -- true False

A: Alpha decay: In alpha decay a radioactive nucleus disintegrates by ejecting an particle. In alpha…

Q: The mass of the pycnometer with water is 30.5 g, while the mass of the pycnometer is 36.5 g. What is…

A: The mass of pycnometer with water = 30.5 g The mass of the pycnometer = 36.5 g The mass of water =…

Q: Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon…

A: According to the law of multiple proportion; When two elements are combined to each other and form…

Q: A neutron star has a density of 5.0 x 1017 kg/m3. How many ?μL of space would 5.0x106 metric tons…

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Q: 70: Find the masses of P O, and P,O,0 10

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Q: Earth’s surface area is 5.10x10^8km², and its crust has amean thickness of 35 km and mean density…

A: Determine the volume of crust and total mass of crust of earth in metric tons using its density.…

Q: The mass of a neutron is 1.6749×10−24 gg , and the mass of a proton is 1.6726×10−24 gg . What is the…

A: