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Acids and Bases

Acids and Bases. Charisma Jenny G. Mallari San Bartolome High School. Write the letter of the correct answer. (5marks). 1. Which of the following is alkaline?. A – detergent solution. B – hydrogen chloride. C – milk. D – vinegar. Correct! Detergent solution or soapy water has a pH=12.

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Acids and Bases

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  1. Acids and Bases Charisma Jenny G. Mallari San Bartolome High School

  2. Write the letter of the correct answer. (5marks)

  3. 1. Which of the following is alkaline? A – detergent solution B – hydrogen chloride C – milk D – vinegar

  4. Correct!Detergent solution or soapy water has a pH=12.

  5. 2. Using the universal solvent, what will be the observed color if pH=7?

  6. Excellent! Green will be the observed color when we add the universal solvent to a neutral substance.

  7. 3. Using litmus paper on lemon juice, which is a correct observation? A- No change in blue litmus C- Blue litmus turns red B- Red litmus turns blue D- Both litmus papers changed colors

  8. You got it right! Remember this Blue turns Red---Acid

  9. 4. What do you call the reaction between an acid and a base, that produces salt and water? • A – combustion • B – hydrolysis • C – neutralization • D – solvation

  10. ACID+ BASE H2O + salt • Superb! In a neutralization reaction, an acid donates its proton H+ to the base to produce H2O and salt.

  11. 5. Which of the following will you add to the soil to lower pH? • A – crushed marble • B – crushed shells • C – lime • D – urea

  12. Excellent! Urea lowers the pH of the soil. It makes the soil slightly acidic.

  13. Sorry! Please try again.

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