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CHEM 120 Week 4 Midterm (Jan 2021)
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1. Question: The correct isotope symbol for the isotope containing 1 proton and two neutrons – He 2. Question: Which are the elements with the followingelectronic configuration: 3. Question: Provide 4 examples of substances with ionicbonds 4. Question: Name thefollowing: 5. Question: A gas is...

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  • April 3, 2021
  • 1
  • 2020/2021
  • Other
  • Unknown

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1. Question: The correct isotope symbol for the isotope containing 1 proton and two neutrons – He
2. Question: Which are the elements with the followingelectronic configuration:
3. Question: Provide 4 examples of substances with ionicbonds
4. Question: Name thefollowing:
5. Question: A gas is enclosed in a 10.0 L tank at 350 mm Hg pressure. Ifthe gas is pumped into a 23.00 L
vessel, what is the newpressure
6. Question: The molarity of a solution that contains 12.5 g of KClO3 in 3.2 liter of solution is
7. Question: What other compound could also be added in order to make a buffered solution with each of
the following:
8. Question: Balance: C2H4 + O2 → CO2+ H2O
9. Question: For the balanced chemicalreaction:
10. Question: List the number of protons, neutrons, and electrons for79Br-
11. Question: An isotope has 21 protons and 19 neutrons. What would bethe mass number of this isotope
12. Question: What are the correct formulas for the compounds formed between
13. Question: Compute the pH of the following solutions with the [H3O+] = 1.2 x10-3 - [H 3O] = 1.2 x10-3
pH=3
14. Question: At what temperature will 0.654 moles of neon gas occupy12.30 liters at 1.95 atmospheres?
15. Question: Determine the volume of occupied by 2.34 grams of carbon dioxide gas at STP.
16. Question: Calculate how many grams are in 0.700 moles of

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