CHEM-120 Unit 4 Midterm Exam (jan 2021)

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Question: The correct isotope symbol for the isotope containing 1 proton and two neutrons – He Question: Which are the elements with the followingelectronic configuration: Question: Provide 4 exam ... ples of substances with ionicbonds Question: Name thefollowing: 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 Question: The molarity of a solution that contains 12.5 g of KClO3 in 3.2 liter of solution is Question: What other compound could also be added in order to make a buffered solution with each of the following: Question: Balance: C2H4 + O2 → CO2+ H2O Question: For the balanced chemicalreaction: Question: List the number of protons, neutrons, and electrons for79Br– Question: An isotope has 21 protons and 19 neutrons. What would bethe mass number of this isotope Question: What are the correct formulas for the compounds formed between Question: Compute the pH of the following solutions with the [H3O+] = 1.2 x10-3 – [H3O] = 1.2 x10-3 pH=3 Question: At what temperature will 0.654 moles of neon gas occupy12.30 liters at 1.95 atmospheres? Question: Determine the volume of occupied by 2.34 grams of carbon dioxide gas at Question: Calculate how many grams are in 0.700 moles of [Show More]

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