Q: D what is the mass of aluminunm Oxide Hoti9e almoD produced fom 174a AGn ganose (N) oxide cole a4…
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Q: Question attached
A: When two atoms have same atomic number and different mass number, they are called as isotopes.
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Q: A sample of aluminum foil contains 4.50×1023 atoms.4.50×1023 atoms. What is the mass of the foil?
A: Given, Number of atoms of Al foil = 4.50 x 1023 atoms Mass of the Al foil = ?
Q: 4.22 Write ionic and net ionic equations for the following reactions:
A:
Q: 4.53 Classify the following redox reactions as combination, decomposition, or displacement:
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Q: 34. Barium Carbonate (s) Barium Oxide (s) + Carbon Dioxide lg) a&b: C: d:
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Q: How many grams of gold (Au; atomic mass = 197.0 g/mol) contains 2.5 x 1020 gold atoms?
A: Number of moles = mass/molar mass Mass = moles × molar mass Molar mass of Au = 197.0 g/mol
Q: Cacs) t Sn Cl4 (ag) Cassi t Cu SO4(a)- Mgrs)+ Z,(NC), (u) > -> Mg(s) + SnCl4(a8)→ Zn(S)t SnCl4(a%)→…
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Q: A sample of 5.000 g of nitrogen can be combined with 5.714 g of oxygen to form nitric oxide gas…
A: The amount of products formed for the given quantity of reactants is determined using stoichiometry.…
Q: ance the following equations: NH, (g)+O, (g) → NO, (g) +H,0 (g) А.) Al(NO,); + Na,S → Al,S, + NaNO,…
A: To balance the chemical equation we first need to count the number of atoms of each element on both…
Q: (27)Al (p,y) (28)Si (40)Ar (n,B') (41)K (14)N (a,p) (17)o (200)Hg (p,a) (6)Li (n,a)
A: Nuclear reaction:
Q: A hydrogen-filled balloon was ignited and 1.70 gg of hydrogen reacted with 13.6 gg of oxygen. How…
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Q: → 2NH3 (9) 1. N0 + 3H, 2. CO20) 2(g) CO(NH,2) + H,O (6), + 2NH, 2(g) 3(g) 3. C,H210) + H,O (a) 2CO,…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
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Q: Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…
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Q: I want to know at least some reason why the mass of the Mgo formed could be lower that expected
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Q: 11. KBr. 12. water 13. CuSO, 14. MgF: 15. Na,SO 16. Cu(NO): 17. NH.Br. 18. Fe(PO.) 19. Mg.N:, 20.…
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Q: (a) P + 0, → P;0, (b) K,0 + H,0 –→ KOH (d) FeCl, + NAOH Fe(OH)3 + NaCl (e) AGNO, + H,S → Ag,S + HNO,…
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A: Given, The mass of magnesium fluoride that contains 7.29 × 1024 F atoms is:
Q: 1. BZOOBZ, NBS, CCI4 2. Mg, THF; then Pd°Ln, PhBr 3. HNO3, H2SO4 4. Zn, HCI
A:
Q: d. Sulfur trioxide, SO, e. dinitrogen tetroxide, N,O, f. Chlorate, CIO," (one chlorine and three…
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Q: 2+ (1) Zn(s) + 2Ag (aq) Zn (aq) + 2Ag(s) (2) 2Cr*(aq) + 3Cl,(g) + 7H,O = Cr,0; (aq) + 6CI (aq) + 14H…
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Q: A sample of 4.000 g of nitrogen can be combined with 4.571 g of oxygen to form nitric oxide gas…
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Q: A 0.8870 g sample containUng Qaix Naci and KGI was Teated win AgNO3. formed had a mass of 1.913 g.…
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Q: 1. A solid circular cone made of pure platinum (d = 21.45 g/cm3 ) has a diameter of 2.75 cm and…
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Q: A piece of copper contains 6.7×108 atoms. What is the mass of the sample, in units of kilograms
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Q: 2 3 1. PbCl, + AGNO, → Pb(NO,), + AgCI 2. NH, + HCI NH,CI | AICI, + Na,So, → Al,(SO,), + NaCI 3.
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- In what way are isotopes of a given element always different? In what way(s) are they always the same?Do the proton and the neutron have exactly the same mass? How do the masses of the proton and the neutron compare to the mass of the electron? Which particles make the greatest contribution W the mass of an atom? Which particles make the greatest contribution to the chemical properties of an atom?The two most common elemental forms of carbon are diamond and ________ .
- See the definition for isobars in Question 15. Consider Cr-54, Fe-54, Fess, and Ni-S8. (a) Which of these are isobars? Which are isotopes? (b) What do Fe-S4 and Fe-58 have in common? (c) Which atoms have the same number of neutrons?Average Atomic Weight Part 1: Consider the four identical spheres below, each with a mass of 2.00 g. Calculate the average mass of a sphere in this sample. Part 2: Now consider a sample that consists of four spheres, each with a different mass: blue mass is 2.00 g, red mass is 1.75 g, green mass is 3.00 g, and yellow mass is 1.25 g. a Calculate the average mass of a sphere in this sample. b How does the average mass for a sphere in this sample compare with the average mass of the sample that consisted just of the blue spheres? How can such different samples have their averages turn out the way they did? Part 3: Consider two jars. One jar contains 100 blue spheres, and the other jar contains 25 each of red, blue, green, and yellow colors mixed together. a If you were to remove 50 blue spheres from the jar containing just the blue spheres, what would be the total mass of spheres left in the jar? (Note that the masses of the spheres are given in Part 2.) b If you were to remove 50 spheres from the jar containing the mixture (assume you get a representative distribution of colors), what would be the total mass of spheres left in the jar? c In the case of the mixture of spheres, does the average mass of the spheres necessarily represent the mass of an individual sphere in the sample? d If you had 80.0 grams of spheres from the blue sample, how many spheres would you have? e If you had 60.0 grams of spheres from the mixed-color sample, how many spheres would you have? What assumption did you make about your sample when performing this calculation? Part 4: Consider a sample that consists of three green spheres and one blue sphere. The green mass is 3.00 g, and the blue mass is 1.00 g. a Calculate the fractional abundance of each sphere in the sample. b Use the fractional abundance to calculate the average mass of the spheres in this sample. c How are the ideas developed in this Concept Exploration related to the atomic weights of the elements?Though the common isotope of aluminum has a mass number of 27, isotopes of aluminum have been isolated (or prepared in nuclear reactors) with mass numbers of 24, 25, 26, 28, 29, and 30. How many neutrons are present in each of these isotopes? Why are they all considered aluminum atoms, even though they differ greatly in mass? Write the atomic symbol for each isotope.
- One of the best indications of a useful theory is that it raises more questions for further experimentation than it originally answered. How does this apply to Dalton’s atomic theory? Give examples.The number of protons in an atom determines the identity of the atom. What does the number and arrangement of the electrons in an atom determine? What does the number of neutrons in an atom determine?The vitamin niacin (nicotinic acid,C6H5NO2 ) can he isolated from a variety of natural sources, such as liver, yeast, milk, and whole grain. It also can be synthesized from commercially available materials. Which Source of nicotinic acid, from a nutritional view, is best for use in a multivitamin tablet? Why?
- How many protons and neutrons are contained in the nucleus of each of the following atoms? In an atom of each element, how many electrons are present? a.2241Ti d.3686Kr b.3064Zn e.3375As c.3276Ge f.1941KIf the volume of a proton were similar to the volume of an electron, how will the densities of these two particles compare to each other?
