Advertisements
Advertisements
Question
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The spoiling of food is a chemical change which is recognized from the generation of certain ______ due to it.
Solution
The spoiling of food is a chemical change which is recognized from the generation of certain smell due to it.
RELATED QUESTIONS
Define catalyst.
How is precipitate formation in a chemical reaction indicated?
Write a short note on the information derived from a balanced chemical equation.
Write the chemical reaction where the following changes are observed.
Gas is evolved
State the type of reactions for the following represent and balance the ones that are not balanced.
Cl2 + 2KBr → 2KCl + Br2
Give reason for the following:
A characteristic change of colour is seen when a piece of iron is added to copper [II] sulphate solution.
Higher order Thinking question
Peeled and unpeeled banana does not look the same. Does that mean peeling banana is a chemical change?
________ is a chemical substance which alters the speed of a chemical reaction.
When an aqueous solution of potassium chloride is added to an aqueous solution of silver nitrate, a white precipitate is formed. Give the chemical equation of this reaction.
We are advised to not to play with fireworks. Give reason.