Question

25. Complete the following reaction and balance the equation:
NaOH + H2SO4
26. Explain roasting and calcination with example.
27. Explain the achievements (merits) of Mendeleev's periodic table.
28. The electronic configuration of an element is 2, 8, 7:
(a) What is the atomic number of this element ?
(b) To which of the following elements is this element chemically
N17), F19). P(15), Ar(18)
29. Why do wina​

Answer 1

Answer:

25 - NaOH + H2SO4 ---> NaHSO4 + H2O

Explanation:

Na will go with HSO4 and will make Sodium Hydrogen Sulfate and OH will go with H atom of H2SO4 and produce water in this following reaction.

I have tried may be it will helpful.