CHEM 120 Week # 4 DQ 1 – Gases (graded) Matter exists in three different states: solid, liquid, and gas. Depending upon its physical properties, matter will be found in one of these states at ambient temperature and pressure. Describe a situation where a substance changed between the solid and liquid states or between liquid and gas states? Can you describe an example of when a substance changed between the gas and solid states? Let’s see how many different examples we can describe.

CHEM 120 Final Exam Questions and Answers Question: (TCO 8) 35.0 mL of 0.25 M NaOH is neutralized by 23.6 mL of an HCl solution. The molarity of the HCl solution is (show your work): Question: (TCO 1) How many mL are in 3.5 pints? Show your work. Question: (TCO 3) What is the name of the following compound: Zn3P2? Question: (TCO 3) What is the name of the following compound: AgNO3? Question: (TCO 6) Calculate the pressure, in atmospheres, of 2.78 mol CO(g) in a 4.25 L tank at 51 degrees C. Que...

CHEM 120 Final Exam Practice Questions and Answers CHEM 120 Final Exam Practice Questions 1. Question: (TCO 12) The DNA double helix is _____. (Pts. : 5) made up of two polynucleotide strands composed of adenine and thymine a puzzle to geneticists composed of adenine and guanine composed of two chromosomes 2. Question: (TCO 12) Which of the following best describes the action of enzymes in living systems? A specific enzyme generally catalyzes (Pts. :...