मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

State the ‘Law of Conservation of Mass’. - Chemistry

Advertisements
Advertisements

प्रश्न

State the ‘law of conservation of mass’.

टीपा लिहा
Advertisements

उत्तर

Law of Conservation of Mass: “In any chemical reaction, the total mass of the reacting substances is equal to the total mass of the products of the reaction provided masses are measured under similar conditions.”

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Matter - Exercises

संबंधित प्रश्‍न

Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas?


Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?


 State the law of conversation of mass.


What do you observe when, barium chloride solution is mixed with sodium sulphate solution ?


When magnesium is burnt in air, there is an increase in mass after the reaction.


If an object weighs 6 kg on earth. What will be its weight on moon ?


Give reason for the following.

Electricity is not considered matter.


 Fill in the blank:

Matter is anything that has............. and occupies .............


Name the scientist who gave law of conservation of mass.


Name the law of chemical combination which was given by Lavoisier.


Name the law of chemical combination which was given by Proust.


‘If 100 grams of calcium carbonate (whether in the form of marble or chalk) are decomposed completely, then 56 grams of calcium oxide and 44 grams of carbon dioxide are obtained’. Which law of chemical combination is illustrated by this statement ?


Which postulate of Dalton's atomic theory can explain the law of conservation of mass ?


Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium
sulphate. In an experiment, 15.95 g of copper sulphate reacted with 8.0 g of sodium hydroxide to form
9.75 g of copper hydroxide and 14.2 g of sodium sulphate. Which law of chemical combination is illustrated by this data ? Give reason for your choice.


An ionic compound will be formed by the combination of one of the following pairs of elements. This pair of elements is :


Complete the statement given below by filling in the blanks with the correct words.

Atoms contain ________ with positively charged ________.


Select the correct answer from A, B, C, D & E for the statement given below:

In Landolt’s experiment – the form in which the chemical energy stored up in the reactants __________ is released.


Select the correct answer from A, B, C, D & E for the statement given below:

The process of change of a liquid into vapour, [gas] on heating.


Match the following.

Law of conservation of mass Sir William Crookes
Law of constant proportion James Chadwick
Cathode rays Joseph Proust
Anode rays Lavoisier
Neutrons Goldstein

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×