Advertisements
Advertisements
Question
Explain by writing a word equation.
Respiration is a chemical change.
Advertisements
Solution
Respiration is a continuously occurring biological process. In this process air is inhaled, oxygen present in this inhaled air reacts with glucose present in the cells of the body forming carbon dioxide and water. The word equation and the chemical equation of this chemical reaction are as follows: (Here, the chemical equation is not balanced.)
Word equation:
\[\ce{Glucose + Oxygen ->[respiration] Carbon dioxide + Water}\]
RELATED QUESTIONS
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Condensation of steam is not a chemical change.
TRUE \ FALSE
Electrolytic refining is a method in which a thin coating of a metal is done over another metal.
Name three reducing agents ?
How is a strong electrolyte different from a weak electrolyte?
Fill in the blank:
The basic conditions necessary for a chemical reaction is _______
Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
To prevent rusting, a layer of ______ metal is applied on iron sheets.
Give reason for the following:
Molybdenum is used in the manufacture of ammonia.
Give a chemical test to distinguish between the following gases.
HCl and Cl2
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
Match the following:
| 1. | Sodium Chloride | a. | CaSO41/2H2O |
| 2. | Calcium sulphate dihydrate | b. | C2H5Oh |
| 3. | Magnesium sulphate hydrate | c. | CaSO4.2H2O |
| 4. | Calcium sulphate hemihydrate | d. | NaCl |
| 5. | Phenol | e. | MgSO4.H2O |
