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Acids & Bases Flocabulary Quiz Answers Key

Q1 Which of the following solutions is the most acidic?
  1. a solution with a pH of 13
  2. a solution with a pH of 2
  3. a solution with a pH of 7
  4. a solution with a pH of 9
Q2 Which of the following solutions is the most basic?
  1. a solution with a pH of 13
  2. a solution with a pH of 2
  3. a solution with a pH of 7
  4. a solution with a pH of 9
Q3 Which of the following solutions is neutral?
  1. a solution with a pH of 14
  2. a solution with a pH of 2FeS
  3. a solution with a pH of 7
  4. a solution with a pH of 9
Q4 Potassium hydroxide has the chemical formula KOH. It feels slippery and is used in cleaning liquids. Based on this description, potassium hydroxide is most likely a(n)
  1. acid.
  2. base.
  3. neutral solution.
  4. pH indicator.
Q5 An acid and base will combine to form a new substance with new properties in a
  1. physical change.
  2. chemical reaction.
  3. distillation.
  4. concentration.
Q6 When an acid and base combine, what is one property of the product?
  1. It tastes more sour than the reactants.
  2. It feels more slippery than the reactants.
  3. It has a pH closer to 0 than either reactant had.
  4. It has a pH closer to 7 than either reactant had.
Q7 A substance that changes color in the presence of an acid or base is called a(n)
  1. indicator.
  2. incinerator.
  3. alkaline.
  4. pH unit.
Q8 What is produced any time an acid and base react?
  1. red cabbage juice.
  2. a different acid and base
  3. water and salt
  4. baking soda and vinegar
Q9 In the science lab, Anu determines that a substance is acidic. What evidence might she have based this on?
  1. The substance felt slippery when she touched it with gloves.
  2. The substance did not react with metal.
  3. The substance turned litmus paper red.
  4. The substance did not conduct electricity.
Q10 In the science lab, Sika combines two substances and determines that a chemical change has taken place. What evidence might she have based this on?
  1. Neither substance smelled or looked different after she combined them.
  2. Both substances turned litmus paper blue before and after she combined them.
  3. There was no change in pH after she combined the substances.
  4. The pH was closer to neutral after she combined the substances.

Acids & Bases Flocabulary Read & Respond Answers

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Q1 The author of this passage would most likely agree with which of the following statements?
  1. People should always wear gloves to touch bases.
  2. Most people have only ever seen acid in a science lab.
  3. Acids and bases are commonly used for many tasks in daily life.
  4. Foods that are basic don’t have any particular taste.
Q2 According to the the passage, what is one main difference between acids and bases?
  1. When they dissociate in water, acids produce hydrogen ions and bases accept hydrogen ions.
  2. In their chemical formulae, acids always have an H, and bases never do.
  3. Acids dissociate in water, and bases do not dissociate in water.
  4. Bases do not have protons, and acids do.
Q3 Based on the passage above, how does an acid with a pH of three compare to an acid with a pH of four?
  1. It is twice as acidic as an acid with a pH of 4.
  2. They are equally acidic.
  3. It is 100 times more acidic than an acid with a pH of 4.
  4. It 10 times more acidic than an acid with a pH of 4.
Q4 Which of the following statements best expresses the central idea of this passage?
  1. Acidic solutions have a pH between 0 and 6.
  2. The pH scale is used to describe a substance’s acidity or alkalinity.
  3. The H in pH stands for hydrogen ions.
  4. Basic solutions have a pH between 8 and 14.
Q5 Based on this passage, distilled water
  1. is acidic.
  2. has an electrical charge.
  3. is a weak base.
  4. is a neutral substance.
Q6 What is the meaning of the word “compound” in the passage above?
  1. a substance created from atoms of two or more elements
  2. a word formed by combining two or more words
  3. to make a problem or mistake worse
  4. made up of many parts
Q7 In which detail from the passage above does the author transition from describing a concept to using a specific example?
  1. “The products have new properties.”
  2. “…the products are always a salt and water.”
  3. “Let’s say the reactants are hydrogen chloride (HCl) and sodium hydroxide (NaOH).”
  4. “The H+ from the HCl combines with the OH- from the NaOH to form H2O, also known as water.”
Q8 Which of the following would be the best title for this passage?
  1. How to Treat Wasp Stings
  2. Neutralization Reactions in Everyday Life
  3. Indigestion, Antacids and pH
  4. Proper pH at the Pool

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Jennifer Kelly is an experienced educator with a passion for empowering students to achieve academic success. With over 12 years of teaching experience, Jennifer has worked with students at all levels, ranging from elementary to high school. Her dedication to helping students excel in their studies led her to create the educational blog Answer Mentor.

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