25. Which type of intermolecular force is the strongest? 26. What are the proper

Question

25. Which type of intermolecular force is the strongest? 26. What are the properties of a liquid, solid and gas with regard to density, compressibility, closeness of particles and holding its shape? 27. What type of a reaction occurs when a potassium nitrate solution is mixed with a barium acetate solution? 28. What is the mass of a piece of lead, which has a density of 11.4 g/mL and displaces 40.2 mL of water? 29. The nucleus of a 14-carbon atom contains how many protons, neutrons and electrons? 30. What is the molarity of a KNO3 solution containing 2.7 mol KNO3 in 250 mL of solution? 31. Which of the following statements about ions is CORRECT? a) Cations are formed when an atom gains protons. b) Cations are positive ions and anions are negative ions. c) Cations are formed when an atom loses protons. d) Anions are formed when an atom gains neutrons. e) All statements are correct.

Explanation / Answer

Lots of questions. I'll recommend you to separate all the questions. I'll answer some of the questions:

25. The Van der Waals forces and the maxwell are the strongests.

27. A double shift reaction: 2KNO3 + Ba(Ac)2 = 2KAc + Ba(NO3)2

28. d = m/v ---> m = d*v = 40.2 x 11.4 = 458.28 g

30. M = mol/V = 2.7 / 0.25 = 10.8 M

31. Option b.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.