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The endothermic reactions are represented by writing on the reactants side.

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Important Questions on Language of Chemistry

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7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 3
The precipitate formed in a chemical reaction is shown by a _____ arrow.
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7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 4
In an exothermic reaction, the heat energy is _____. (absorbed/evolved)
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7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 1
Chemical reactions do not tell us about reactants or products.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 2
Chemical reactions do not involve change in the chemical composition of the substances involved.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 3
Endothermic reactions are detected by fall in temperature.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 4
The state of the substances taking part in a chemical reaction never changes.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 1
What is a chemical reaction?
MEDIUM
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 6 - Language of Chemistry>EVALUATION>Q 2
Give an example each for exothermic and endothermic reactions.