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Chapter 7 Test Study Guide Name ________________________ Parent Signature _____________________________________ Answer Bank – Answers may be used more than once and may be combined to make an answer =============================================================================== Acid Base Bitter Boiling point Colloid Concentrated Concentration Corrosive Dilute Dissolves Freezing point Hydrogen Hydroxide Indicator Ion Neutral Neutralization pH Reaction Salt Saturated Solubility Solute Solution Solvent Sour Slippery Supersaturated Suspension Unsaturated Water =============================================================================== 1. A solution that produces the hydroxide ion is called a(n) __________________ 2. In a mixture, the stuff that is dissolved by the other stuff is called the ____________________ 3. In a solution the stuff that dissolves the other stuff is called the ________________. 4. If a solution has a pH of 8 it is considered to be a strong ________________ 5. A ___________________ solution is one that has been forced to dissolve more solute than it normally can dissolve. 6. A chemical, such as litmus, that changes color when exposed to an acid or a base is called a(n) ______________________ 7. The H+ particle is called the _________________ ion 8. Two properties of acids are that they are _______________ to metals and tastes ______________ 9. A solution that has small dissolved particles in it that appears to be one substance is called a _______________ 10. Acids produce the _________________ ion. 11. The reaction between an acid and a base is called a ______________________ reaction. 12. A _______________ solution is one that can still dissolve more solute it it. 13. If a solution has a pH of 6 it is considered to be a weak ____________ 14. A solution that has a lot of solute dissolved in the solvent is called a ______________ solution. 15. If a solution has a pH of 7 it is said to be ________________ 16. Adding a solute to a solvent raises the ____________ _______ and lowers the __________ ______________ of the solvent. Chapter 7 Practice Test 17. A ________________ is a mixture that is made of small undissolved particles that do not settle out and scatter light beams. 18. The products of a neutralization reaction are ___________________ and __________________ 19. Two properties of bases are that they feel ________________ and tastes ______________ 20. The scale that is used to measure the strength of acids and bases is called the ____________ scale. 21. If a solution has a pH of 8 it is considered to be a weak ____________ 22. __________________ is the value that represents the amount of solute compared to the amount of solution. 23. The reactants in a neutralization reactions are ______________ and ___________________ 24. A __________________ is a mixture that is made of undissolved particles that separates after it sits for awhile. 25. The ability of a substance to dissolve in another substance is called _______________________ 26. A solution that has very little solute dissolved in the solvent is called a _________________ solution. 27. The OH- particle is called a ______________ ion. 28. If a solution has a pH of 2 it is considered to be a strong ___________ Solve the following concentration problems. You must show what formula you are using and the set up of the problem and use the correct units! 29. A solution is made dissolving 25 g of chemical A to make a 100g solution. What is the concentration of chemical A in this solution? 30. You need to make 100 g of a solution that has a 10% concentration of chemical B, how many grams of chemical B do you have to dissolve in the solvent? 31. A solution is made with 65 g of chemical C dissolved in 135 g of chemical D, what is the concentration of the solution? Chapter 7 Practice Test 32. What is the solubility of NH4Cl at 70 oC ____________________ 33. What is the solubility of NaNO3 at 10 oC ___________________ 34. What is the solubility of KNO3 at 50 oC _____________________ 35. What is the solubility of NH3 at 40 oC ______________________ 36. Which compound has the highest solubility at 20 oC ___________________ 37. What compounds solubility changes the most from 0 oC to 70 oC _____________________ 38. What is the trend of the solubility for NH3? ___________________ 39. What is the trend for the solubility for NH4Cl? ____________________ 40. Which chemical is most likely a gas? ___________________ 41. Why? _________________________________________________________________________________ Chapter 7 Practice Test Complete the following neutralization reactions HBr + SrOH _________________ + _____________________ HNO3 + ________________ ______________ + NaNO3 _______________ + Mg(OH)2 ________________ + MgSO4 ________________________ + _______________________ 12HOH + Ti3(PO4)4