7. Answer the following questions in detail.
a. Explain the process of neutralisation with an example.
b. What are physical and chemical properties?
C. Explain the function of antacids.
Answers
Answer:
a). Acids, Bases and Salts | ExerciseThe reaction between an acid and bases is called a neutralization reaction. The result of the reaction is salt and water. For example, when hydrochloric acid(acid) and sodium hydroxide(base) react they form sodium chloride(salt) and water. Also, heat is evolved.
The reaction in which an acid reacts with a base to form salt and water is called neutralisation. ... Sodium hydroxide is a base and hydrochloric acid is an acid. When sodium hydroxide is treated with hydrochloric acid, then a neutralisation reaction takes place to form sodium chloride (salt) and water.
b). A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.
The general properties of matter such as color, density, hardness, are examples of physical properties. Properties that describe how a substance changes into a completely different substance are called chemical properties. Flammability and corrosion/oxidation resistance are examples of chemical properties.
c). Antacids neutralise the acid made by your stomach. They are commonly used in conditions where it is helpful to neutralise the acid made in the stomach. For example, for acid reflux which causes heartburn.
Antacids help to treat heartburn (indigestion). They work by neutralizing the stomach acid that causes heartburn. You can buy many antacids without a prescription.
Explanation:
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E.g. Na + Cl —> NaCl
B. Physical properties tells about physical features of and compound or substance which can be observed physically. Chemical properties are those which tells about chemical nature of substance. We have to perform chemical reactions to observe chemical properties.
C. Antacids help in removing acidity.