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Chem 105 final UWEC Questions and Answers New (2025/2026) Solved 100% Correct $7.99   Add to cart

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Chem 105 final UWEC Questions and Answers New (2025/2026) Solved 100% Correct

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  • Chem 105 UWEC
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  • Chem 105 UWEC

What is the correct name for AlCl3? a). Aluminum (III) chloride b). Aluminum chloride c). Aluminum trichloride d). Monoaluminum trichloride - ️️b). Aluminum chloride What kind of compound is HNO3? a). Molecular b). Ionic c). Metallic d). Element e). Polyatomic ion - ️️a). Molecula...

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  • October 16, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Chem 105 UWEC
  • Chem 105 UWEC
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PatrickKaylian
Chem 105 final UWEC
What is the correct name for AlCl3?

a). Aluminum (III) chloride
b). Aluminum chloride
c). Aluminum trichloride
d). Monoaluminum trichloride - ✔️✔️b). Aluminum chloride

What kind of compound is HNO3?

a). Molecular
b). Ionic
c). Metallic
d). Element
e). Polyatomic ion - ✔️✔️a). Molecular

What is the molar mass of CaCO3?

a). 68.09 g/mol
b). 100.09 g/mol
c). 92.11 g/mol
d). 124.11 g/mol
e). 200.2 g/mol - ✔️✔️b). 100.09 g/mol


Which of the following is a homogenous mixture?

a). Distilled water
b). Ammonia
c). River water with suspended sand particles
d). NaCl dissolved in water
e). C6H6(l) - ✔️✔️d). NaCl dissolved in water

If Co2 has a MM of 44.01 g/mol, how many moles of CO2 are in 254g of CO2?

a). 0.173 moles
b). 5.77 moles
c). 11200 moles
d). 11.5 moles
e). 6.25 moles - ✔️✔️b). 5.77 moles

How many atoms of Cl are in 43 moles of CaCl2?

, a). 43
b). 86
c). 5.2 x 10^25
d). 2.6 x 10^25
e). 1.4 x 10^22 - ✔️✔️c). 5.2 x 10^25


How many significant figures are in the following number: 204.0 mL?

a). 2
b). 3
c). 4
d). 5
e). 0 - ✔️✔️c). 4

Which of the following is diphosphorus pentoxide?

a). PO10
b). P2O6
c). P2O5
d).P3O7
e). PO8 - ✔️✔️c). P2O5

How many neutrons are in the radioactive iodine isotope 131I which is used for medical
imaging?

a). 53
b). 78
c). 131
d). 7
e). Unspecified - ✔️✔️b). 78

Considering OH, H202 and H20, which of the following statements is true?

a). OH and H2O2 are both empirical formulas
b). H2O is the empirical formula of H2O2
c). OH is the empirical formula of H2O
d). H2O is both a molecular and empirical formula
e). H2O2 is the empirical formula of OH - ✔️✔️d). H2O is both a molecular and
empirical formula

If an empirical formula of a compound was determined to be CH2O and a separate
experiment determined the molar mass to be 180 g/mol, what is the molecular formula?

a). C6H12O6

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