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- 1. Multiple ChoiceMeasure of how acidic or basic something is.aHbHpHHp
- 2. Multiple ChoiceVinegar is an example of __________A baseAn acidA neutral substance
- 3. Multiple ChoiceBases are what range on the pH scale?0-6.9977.1-140-14
- 4. Multiple ChoiceWhen found in food, acids are ________SourBitterSaltySlippery
- 5. Multiple ChoiceWhat are properties of acids?Bitter, slippery, ph above 7Sour, reacts with metals, ph below 7Sour, reacts with metals, ph above 7Bitter, ph of 7, does not react with metals
- 6. Multiple ChoiceWhat are properties of a base?Slippery, bitter, does not react with metals, pH above 7.Slippery, bitter, reacts with metals, pH below 7.Sour, reacts with metals, pH below 7Sour, reacts with metals, pH above 7.
- 7. Multiple ChoiceA solution with a pH of 3.6 would be...AcidBaseNeutralAcid and Base
- 8. Multiple ChoiceAcids are what range on the pH scale?0-140-6.9977.1-14
- 9. Multiple ChoiceA solution with a pH of 8.6 would be...AcidBaseNeutralAcid and Base
- 10. Multiple ChoiceWhat is the only substance with a neutral pH of 7?MilkOrange JuiceWaterBlood
- 11. Multiple ChoiceWater is neutral because the number of hydrogen and hydroxide ions is _________.the samedifferent
- 12. Multiple ChoiceBases release ____________ ions when they break down or dissociate.Hydrogen (H+)Hydroxide (OH-)Chlorine (Cl-)no
- 13. Multiple ChoiceWhen blue litmus paper is placed in a baseit turns redit stays blueit turns greenit dissolves
- 14. Multiple ChoiceAcids produce _________ ions when they break down or dissocciate.Hydroxide (OH-)WaterChlorine (Cl-)Hydrogen (H+)
- 15. Multiple ChoiceBases tastebittersoursoapysweet
- 16. Multiple ChoiceWhat characterizes a strong acid or base?ionic bondingpresence of a hydroxide or hydrogen ioncomplete ionization in waterpolar covalent bonding
- 17. Multiple ChoiceWhich of the following liquids is basic?lemonsdrain cleanervinegartomato juice
- 18. Multiple ChoiceBases feelslipperydryroughmoist
- 19. Multiple ChoiceWhich of the following liquids is acidic?milk of magnesisseawaterammoniaorange juice
- 20. Multiple ChoiceAcids tastesaltysweetsourbitter
- 21. Multiple ChoiceThe pH scale in general use ranges from0 to 7-1 to 10 to 140 to 1
- 22. Multiple ChoiceThe pH of a basic solution isless than 0less than 7greater than 7greater than 14
- 23. Multiple ChoiceThe pH of an acidic solution isless than 0less than 7greater than 7greather than 14
- 24. Multiple ChoiceAcids produce _________ ions when they break down or dissocciate.Hydroxide (OH-)WaterChlorine (Cl-)Hydrogen (H+)
- 25. Multiple ChoiceWhich of the following substances would have the greatest concentration of H+ ions?Ammonia with
pH 13Water with
pH 7Milk with
pH 5Lemon juice with
pH 2 - 26. Multiple ChoiceHolly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beakeris a base.has a neutral pH.is an acid.does not have a pH. - 27. Multiple ChoiceWhich of the following statements is correct?Blue litmus paper turns red when placed in a base.Red litmus paper turns blue when placed in a base.Blue litmus paper stays blue when placed in an acid.Red litmus paper stays red when placed in a base.
- 28. Multiple ChoiceThe pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?3975
- 29. Multiple ChoiceHuman blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?strongly acidicslightly acidicstrongly basicslightly basic
- 30. Multiple ChoiceA compound that changes color when it is in contact with an acid or base is called______________AcidBaseNeutralIndicator
- 31. Multiple ChoiceOn the pH scale what numbers are neutrals?8-140-771
- 32. Multiple ChoiceThe pH scale measures......the strength of an acid....the strength of hydrogen ions....the concentration of hydrogen ions....the concentration of an acid
- 33. Multiple ChoiceThe esophagus is the tube that connects the mouth to the stomach. Heartburn occurs when some of the stomach juices flow backwards up the esophagus. To help relieve heartburn, a person should take medicine that isneutralbasic
acidic or basic.acidic - 34. Multiple ChoiceIf an acid is combined with a base of equal strength, the result will most likely bea neutral solution.a stronger acid.impossible to tell without testing the pH.a stronger base
- 35. Multiple ChoiceDuring science lab, students were asked to test a variety of common household substances and classify them as: acid, base, or neutral. Tests on shampoo produced the following results.
felt slippery
pH 8.5
turned red litmus blue
These results indicateShampoo is an acidShampoo is a baseShampoo is neutralThis is not enough information. - 36. Multiple ChoiceWhich of the following substances has the highest concentration of hydrogen ions in solution?bleach – pH 13water – pH 7tomato juice – pH 4vinegar – pH 3
- 37. Multiple Choice
Which of the following aqueous solutions will cause litmus paper to turn red?NaOHNaClHClH2O - 38. Multiple ChoiceWhich pair of solutions would be acidic if mixed in equal quantities?A and BB and CB and DC and D
- 39. Multiple ChoiceA _________ acid ionizes alomst completely in water.StrongWeak
- 40. Multiple Choice______ 7 on the pH scale is considered a base.AboveBelow
- 41. Multiple ChoiceLemon juice is 2.5 on the pH scale, therefore, it is considered a strong _____acidbase
- 42. Multiple ChoiceA ________ base does not completely ionize in solutionstrongweak
- 43. Multiple ChoiceBOTH acids and basesturn red litmus blue.turn red litmus blue.donate protons to solution.conduct electricity in water.
- 44. Multiple ChoiceLitmus paper is made from water-soluble dyes which are extracted from lichens. This paper is used as an acid-base indicator. Which of these common household substances would turn blue litmus paper red?bleachlyesoapvinegar
- 45. Multiple ChoiceDuring science class Billy used litmus paper to determine the pH of an unknown liquid. The blue litmus paper turned red but there was no change in the color of the red litmus paper.
The liquid Billy tested is probablya base.neutral.an acid.of pH 7. - 46. Multiple ChoiceA substance with a pH of 9 hasno H30+ ions or OH- ions.more H30+ ions than OH- ions.more OH- ions than H30+ ions.the same number of H30+ ions as it does OH- ions.
- 47. Multiple ChoiceGardeners understand that plants have specific pH requirements. Most plants thrive in soil with a pH that is slightly acidic, neutral, or slightly basic. Imagine your soil is very acidic, with a pH of 3.5. How can you raise the pH to an appropriate level so your garden plants will survive?Add fertilizer.Water frequently to wash away the acid.Add organic matter like peat moss or humus.Add a base like limestone or calcium carbonate.
- 48. Multiple ChoiceBradley was working in the lab. He accidentally poured a container of concentrated hydrochloric acid into his container of distilled water. Not thinking much of it, he continued with his work as if nothing happened. Which of these would be the result of this laboratory accident?The water will change to a bright pink color.The new solution would decrease in temperature.The solution has now become a good conductor of electricity.HCl and water have the same chemical and physical properties, so nothing would happen.
- 49. Multiple ChoiceHow does milk of magnesia act to calm an upset stomach?Acidic milk of magnesia helps to counteract the stomach acid.An upset stomach requires more acid instead of milk of magnesia.The basic pH of milk of magnesia neutralizes any extra stomach acid.Milk of magnesia has a neutral nature which dilutes the stomach acid.
- 50. Multiple ChoiceThe pH of a cup of black coffee is 5 while the pH of glass of tomato juice is 4. Comparing the pH of the two liquids, the tomato juice has _______________ [H+] than the coffee.half as many10 times more10 times less100 times more
- 51. Multiple ChoiceA reaction between an acid and a base is called a(n) ________________ reaction.hydroionizationneutralizationredox
- 52. Multiple ChoiceAccording to the scale, which of these substances is the strongest acid?NaOHbloodbleachlemon juice
- 53. Multiple ChoiceAccording to the pH chart, which is the strongest base?HClNaOHbloodsaliva
- 54. Multiple ChoiceLemon Juice
Tums (antacid)
Water
Put all of the above household items in order from lowest to highest pH.Lemon juice, water, TumsWater, Tums, Lemon JuiceWater, Lemon Juice, TumsTums, water, lemon juice - 55. Multiple ChoiceOven cleaner is a highly caustic chemical that reacts with baked on foods. It is dangerous to the touch and has a very slippery feel.
What is the likely pH of oven cleaner?below 4around 7above 10between 5 and 7 - 56. Multiple ChoicePepsi
Vinegar
Orange Juice
What property do all three of these common household substances have in common?They are all acidic.They all taste bitter.They all have a pH above 7.They all turn litmus paper blue. - 57. Multiple ChoiceBleach
Detergent
Ammonia
What property do all three of these common household substances have in common?They are all acidic.They all taste sour.They all have a pH above 7.They all turn litmus paper red. - 58. Multiple ChoiceCoca cola is similar to tomato juice becausethey are both bases.they are both acids.they are carbonated.they are high in fructose.
- 59. Multiple ChoiceMilk of magnesia is a base. What happens when you drink milk of magnesia for an upset stomach?It raises the pH of your stomach.It lowers the pH of your stomach.It cleanses the stomach of harmful, painful bacteria.It coats the walls of your stomach with a protective layer.
- 60. Multiple ChoiceEddie's chemistry teacher has asked the class to add various household substances to this scale of acids and bases. Eddie must decide where add baking soda, pH 9.
Eddie should insert baking soda, pH 9, as aweak acid.weak base.strong acid.strong base. - Answer choicesTagsAnswer choicesTags