Chemistry
Grade-8
Easy
Question
What does the sign '↑' indicate in a chemical equation?
- Precipitate substance
- Evolution of a gas
- Substance dissolved in water
- Liquid substance
Hint:
A chemical equation shows the starting compound or the reactant on the left-hand side of the reaction and the final compound also known as the products on the right-hand side of the reaction.
The correct answer is: Evolution of a gas
The sign '↑' in a chemical equation indicates the evolution of a gas
- The chemical reactions, also called the gas evolution reactions are of double displacement reactions that produce gas as one of the products.
- If a gas is released, it is shown by an upward arrow.
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