A chemical reaction which proceed a. Chlorine with absorption of heat energy 2. A nonmetal used in sterilization of water b. Endothermic reaction 3. A nonmetal deficiency can lead to goiter disease c. Zinc 4. A metal used in making high quality mirrors d. Tungsten e. Iodine
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PLS MARK AS BRAINLIEST
Answer:
Points to remember:-
1. A chemical equation represents a chemical reaction occurring in a chemical change.
2. A chemical equation is balanced so that the number of atoms of each element involved
in a chemical reaction are the same on the reactant and product sides of the equation.
3. Combination reaction:- The reaction in which two or more substances combine to form
a new single substance.
4. Decomposition reaction:- The reaction in which a single substance decomposes to give
two or more substances. It can be thermal (by heat) or electrolytic (by electric current)
decomposition.
5. Displacement reaction:- The chemical reaction in which an element displaces another
element from its compound.
6. Double displacement reaction:- The reaction in which two different atoms or group of
atoms (ions) are mutually exchanged.
7. Precipitation reaction:- The reaction that produces insoluble salts.
8. Oxidation is the gain of oxygen or loss of hydrogen.
9. Reduction is the loss of oxygen or gain of hydrogen.
10. Redox reaction:- The reaction in which one reactant gets oxidised while the other gets
reduced.
11. Exothermic reaction:- Reaction in which heat is given out along with the products.
12. Endothermic reaction:- Reaction in which energy is absorbed by the reactants.
13. Corrosion:- When a metal is attacked by substances around it such as moisture, acids,
etc. it is said to corrode and this process is called corrosion.
14. Rancidity:- When fats and oils are oxidised, they become rancid and their smell and taste change
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