Try out biologi smp kelas 7

1.       One example of acid  is…..

          a.  NaOH                                     c. H₂O

          b. HCl                                         d. NaCl

2.          Which of the pH listed below represents the strongest base?

             a. 7                                                c. 13

             b. 10                                             d. 15

3.          Look at the material below!

           1.       Soap

           2.       Alcohol

           3.       Vinegar

          4.       Blance

The material that show the base

         a.        1 and 2                                c. 1 and 4

         b.       2 dan 3                                d. 3 and 4

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