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Question
Fill in the blank
A new substance is always formed in a _______ change.
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Solution
A new substance is always formed in a chemical change.
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The reddish-brown precipitate obtained during a double decomposition precipitation reaction between an iron salt and alkali is __________.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Zinc carbonate.
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Discuss how acid rain occurs due to emission of smoke from vehicles and industries?
When lithium metal is placed in hydrochloric acid, _______ gas is evolved.
Burning of paper is the best example of ______ change.
Arrange the following statements in correct sequence:
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