Question

Fill in the blanks. 1. A combination reaction is also called reaction 2. The decomposition brought about by heat is called 3. A more reactive metal displaces a less reactive metal during a reaction. 4. The chemical reaction in which an insoluble part called separates from the solution is called reaction. 5. is applied on the affected area to neutralise the effect of an ant or a bee sting. 6. The addition of oxygen or the removal of hydrogen from a substance is called 7. An atom or a group atoms which loses electrons during a chemical reaction is called or 8. Chlorine reacts with hydrogen sulphide to form and​

Answer 1

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$\huge\red{Answer}$

1. A combination reaction, also known as a synthesis reaction
2. Decomposition brought about by heat is known as thermal decomposition.
3. A more reactive metal displaces the less reactive metal from its salt. This type of reaction is called displacement reaction.
4. Formation of an insoluble compound will sometimes occur when a solution containing a particular cation (a positively charged ion) is mixed with another solution containing a particular anion (a negatively charged ion). The solid that separates is called a precipitate. precipitation reaction.
5. A paste made of baking soda and water.Soap cleans the affected area and removes the sting.
6. Oxidation is a chemical reaction involving -addition of oxygen to a substance or removal of hydrogen from a substance.
7. Oxidation is a process where a substance: Loses one or more electrons. Gains an oxygen atom or Electronegative atoms. Loses a hydrogen atom or Electropositive atoms. Gains an increase in its oxidation number.
8. In the second reaction, hydrogen sulfide reactions with chlorine and water to create sulfuric acid and hydrochloric acid.