IV. Provide the chemical Name of below acid or base. (a) Vinegar

(b) Fruits (orange)

(c) Curd

(d) Lime water

(e) Window cleaner

(f) Soap

V. When ‘X’ is added to ‘Y’ immediately ‘Y” turns to pink. Identify X.

VI. Give examples of a common acid and a common salt. Compare their composition. How do they differ and what do they have in common?

VII. Explain why pickles and jams should not be stored in metal containers.

VIII. Differentiate between weak acid and strong acid.

IX. Explain the reaction involved in the formation of sodium
chloride.

X. Why does a doctor give an antacid to treat indigestion?

A)Acetic acid

a)citric acid

b)lactic acid

c)citric acid

d)NH3

f)oxygen hidro-oxide

Explanation:

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.