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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
Complete and balance the following chemical equations
NaCI + `AgNO_3` `→`
Complete and balance the following chemical equations:
Zn + `"H"_2"SO"_4` `→`
(dil)
Give reason.
Acidic soil is treated with quick lime.
FILL IN THE BLANK
Negatively charged ions are called ..........
TRUE \ FALSE
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Balancing a chemical equation is based on
State four conditions necessary for a chemical reaction to take place.
Explain the following reaction with one suitable example of Double decomposition reaction.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
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The white particles of baking soda disappear when put in lemon juice. This means that it is a ______ change.
State the conditions necessary for a chemical change or reaction.
Name: A brown gas
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Distinguish by heating the following in dry test tubs.
Zinc nitrate and copper nitrate.
Name the following:
The products obtained during ‘photosynthesis’ – which is a chemical change.
Complete the table given below.
| Addition of dil. H2SO4 to FeS | Odour of gas evolved |
Explain the following statement: Digestion is a chemical change.
Water boiling into water vapour is an example of chemical change.
The water we drink is a combination of hydrogen and oxygen.
State whether the following statement is true or false:
When a candle burns, both physical and chemical changes take place.
Write the characteristics of chemical change.
