Regents Chemistry Exam August 2025 Question 15 15  At which pressure and temperature does a sample of He(g) behave most like an ideal gas? (1)  0.5 atm and 137 K (3) 2.0 atm and 137 K (2)  0.5 atm and 546 K (4) 2.0 atm and 546 K Solution: A real gas behaves most like an ideal gas at low pressure and high temperature. Choice 2 is the correct answer. LINKS: Regents Chemistry Guides and Solutions Chemistry Tutoring More Regents Chemistry Practice

Regents Chemistry Exam August 2025 Question 14 14  All aqueous solutions of glucose are classified as (1) mixtures with a fixed proportion (2) compounds with a fixed proportion (3) mixtures with proportions that may vary (4) compounds with proportions that may vary Solution: An aqeous solution consists of a substance dissolved in water. Aqueous solutions are homogenious mixtures. Mixtures have varied, not fixed proportions. Choice 3 is the correct answer. LINKS: Regents Chemi