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प्रश्न
Fill in the blank:
The substances formed as a result of a chemical reaction are called _______
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उत्तर
The substances formed as a result of a chemical reaction are called products .
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संबंधित प्रश्न
Fill in the blanK
A .............is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
Write the missing reactants and products and balance the equations.
\[\ce{KClO3 ->[heat]}\] ___________+ ____________
What are oxides ?
FILL IN THE BLANK
Positively charged ions are called ........
Write true or false :
When iron and sulphur are heated together a grey mass is formed which is attracted by a magnet .
Copper carbonate when heated, it turns :
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)
Rusting of iron is a ______ chemical change.
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.
Give an example of the following chemical changes.
A reaction where colour change is noticed.
Give a chemical test to distinguish between the following gases.
H2 and CO2
Give reason for the following:
Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts is unnoticeable.
Name the following:
The products obtained during ‘photosynthesis’ – which is a chemical change.
Give balanced equation for the following conversion affected by heat alone on the substance:
Hydrated copper sulphate to sulphur dioxide
Complete the table given below.
| Heat on sodium chloride | Colour imparted to flame during flame test |
What is the role of a catalyst in a chemical reaction?
______ change results in the change of the substance.
The chemical name of baking soda is sodium bicarbonate.
What is thermochemical reactions?
What is the difference between reactants and products?
