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A sterling silver bracelet, which is 92.5% silver by mass, has a volume of 25.6 cm3 and a density of
a. What is the mass, in kilograms, of the bracelet?
b. How many atoms of silver are in the bracelet?
c. Determine the number of protons and neutrons in each of the two stable isotopes of silver:
d. When silver combines with oxygen, a compound forms that contains 93.10% Ag by mass. What are the name and the molecular formula of the oxide product if the molecular formula is the same as the empirical formula?
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Chapter 7 Solutions
Pearson eText Basic Chemistry -- Instant Access (Pearson+)
- 4.94 Indicate if each of the following statements is true or false: (4.3) a. The neutron has no net charges. b. Most of the mass of an atom is due to the protons and electrons. c. The total charge of the electrons is equal, but opposite, to the charge of the nucleus. d. The proton and the electron have about the same mass. e. The mass number is the number of protons. 4.10arrow_forwardConsider three elements with the following abbreviatedelectron configurations: (5.4, 5.5, 5.6)X = [Ar]4s23d5 Y = [Ar]4s23d104p1 Z = [Ar]4s23d104p6a. Identify each element as a metal, nonmetal, or metalloid.b. Which element has the smallest atomic size?c. Which element has the highest ionization energy?d. Which element has a half-filled sublevel?arrow_forward(6.3)The volume of a gas is 0.953 L at 30.0 °C. If the gas is heated to 60.0 °C, what would be the volume of the gas (in L) at this temperature? O 1.05 L O 0.867 L O 1.91 L O 0.477 Larrow_forward
- 28. Completely describe the orbitals found in the fourth energy level. How many electrons can be found in a full fourth energy level? Give an example of an element that has its valence electrons in the fourth energy level. (3.3) K/Uarrow_forward11:11 ÔN A D Instructions - Classes - C... https://coetbschemfabon.neolm. Fill in the blanks: (4.1) Write the complete atomic/nuclide symbol for (a) an ion fluoride that contains 9 protons and 10 neutrons in the nucleus and 10 extranuclear electrons? (b) an ion of iron that contains 26 protons and 30 neutrons in the nucleus and 24 extranuclear electrons? Note: Use the "^" caret symbol to denote exponential components..for Ca¯“can be written as example, 20 "20^40Ca^-2" (atomic number written first). Answer: (a) mass number nuclide symbol (b) mass number nuclide symbol Continue > Status Dausearrow_forward7. What type of product is formed when acids are added to some ionic compounds? Stronger acids Weaker acids Gas Solids GET New version available! (3.0.220)arrow_forward
- (3.7)Classify each of the following as an atomic element, molecular element, molecular compound, or ionic compound. tin(IV) phosphide [Choose ] gold [Choose] carbon monoxide [Choose] V bromine [Choose ] < Previousarrow_forward(3.6)Write the systematic names of compounds with lowercase letters except Roman Numerals. Roman number should be written with capital letters (I, II, III, IV, etc.). There should be no space between the end of the name of the metal and the parentheses with the Roman numeral. Example: CuO copper(II) oxide H₂CrO4(aq) SO3 acer H₂S(aq) FeN Sn3(PO3)2 1080arrow_forward(5.8)Which of the following reactions will form a gaseous product? O H₂CO3(aq) + Pb(NO3)2(aq) O NaOH(aq) + HNO3(aq) O None of these O Na₂SO3(aq) + H₂SO4(aq) ◄ Previousarrow_forward
- Give the symbol of the element that has the (5.6)a. largest atomic size in Period 5b. largest atomic size in Group 2A (2)c. highest ionization energy in Group 8A (18)d. lowest ionization energy in Period 2e. abbreviated electron configuration [Kr]5s24d105p2.arrow_forward(9.3, 9.4)Identify the element with the ground state electron configuration of [Ar]4s23d¹04p³. O antimony iron tin arsenicarrow_forward(5.5, 5.7 & 5.8) Classify the following reaction. Ba(NO3)2(aq) + K₂SO4(aq) --> O acid-base reaction O gas-forming reaction O decomposition reaction O precipitation reactionarrow_forward
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