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प्रश्न
A change in which matter undergoes a change but the total mass of the substance is unaltered is a ______ change.
विकल्प
physical
chemical
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उत्तर
A change in which matter undergoes a change but the total mass of the substance is unaltered is a physical change.
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संबंधित प्रश्न
What do you observe when :
lighted match stick is brought near the mouth of the test tube containing hydrogen gas.
What are man-made changes ?
Classify the following changes as physical or chemical.
Classify the following as physical or chemical changes :
Breaking of a glass tumbler
What will you take into account while identifying the following?
A chemical change in a substance.
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
Select the chemical changes from the following list of changes
The crystallisation of salt from its solution.
Select the correct answer from the choice given below to complete the sentence
A change in which a substance retains its identity is a
______ change.
Water is the universal solvent. Why?
