Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Can you answer number 4, 6 and 25?
Transcribed Image Text:4. A given substance is an acid, if in aqueous solution, the substance
a. Has a pH above 7 b. turns litmus paper red
5. Which is not a base?
а. Mg(ОН)2 b. Вғз с. NH3
6. Which one of the following statements is true for all bases?
a. When bases reacts with acids, the only product is salt
c. has a soapy feeling
b. Bases are colorless
c. Bases turns litmus paper blue.
7. When the hydrogen ion is indicated in connection with its water solution, the ion represented is
а. ОН-
b. H30+
с. Н20+
8. When a base accepts a proton the species formed is.
c. acid
9. When an acid donates a proton the species formed is.
c. acid
a. Conjugate base
b. conjugate acid
b. conjugate acid
10. The conjugate base pair of H2PO4- in the equation H2PO4- + OH- is
с. РОЗ 3-
a. Conjugate base
а. НЗРО4
11. The substance that can act as an acid or a base.
b. НРОЗ 2-
a. Monoprotic
12. Which of the following is a strong acid ?
b. diprotic
c. amphoteric
а. КОН
b. NaOH
c. HNO3
13. Which of the following is a strong base?
a. HCI
14. Which of the following is a weak acid?
a. Pyridine b. aniline
15. A conjugate base of a strong acid has a low affinity for protons and therefore
b. H2SO4
c. NAOH
c. carbonic acid
a. Weak acid
b. weak base
c. conjugate acid
16. The conjugate acid pair of NH3 in the equation NH3 + H20 is
C. NH
а. NH,
b. NH,
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