Science — (X SSC)

1. For the chapter Chemical reactions and changes, kindly watch the following link to understand the basics of the chapter

Now answer the following questions:

Balance the following equations:

a. H2 S2 O7 (l) + H2 O(l) — — — — -> H2 SO4 (l)

b. SO2 (g) + H2 S(aq) — — — — ->S(s) + H2 O (l)

c. Ag(s) + HCl(aq) — — — → AgCl + H2

d. NaOH (aq) + H2 SO4 (aq) — — — → Na2 SO4 (aq) + H2 O(l)

2. For Science 2 — chapter Life Processes in living organisms, watch the following videos on Mitosis

Answer the following questions;

a. With the help of suitable diagrams, explain the mitosis in detail.

* Practice diagram from the textbook- usually the question is asked for 5 marks in the board paper.