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The Language Of Chemistry

Question
ICSEENICH9009860
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Sodium chloride reacts with silver nitrate to produce silver chloride and sodium nitrate

  1. Write the equation.
  2. Check whether it is balanced, if not balance it.
  3. Find the weights of reactants and products.
  4. State the law which this equation satisfies. 

Solution
  1. NaCl+ AgNO3 → NaNO3 + AgCl↓
  2. It is a balanced equation.

    3. c. Weights of reactants:NaCl - 58.44, AgNO3 - 169.87 

        Weights of products: NaNO3 - 84.99, AgCl - 143.32

        NaCl + AgNO3 → NaNO3  + AgCl

        (23+35.5) + (108+14+48) → (23+14+48) + (108+35.5)

        58.5 + 170 → 85 + 143.5

        228.5 g → 228.5 g

     

    d. Law of conservation of mass: Matter is neither created nor destroyed in the course of a chemical reaction.

Some More Questions From The Language of Chemistry Chapter

Fill in the blanks:

  1. Dalton used symbol _____ for oxygen _____ for hydrogen.
  2. Symbol represents _____ atom(s) of an element.
  3. Symbolic expression for a molecule is called _____.  .
  4. Sodium chloride has two radicals. Sodium is a _____ radical while chloride is _____ radical.
  5. Valency of carbon in CH4 is _____ , in C2H6 _____, in C2H4 ___ and in C2H2 is ____.
  6. Valency of Iron in FeCl2 is _____  and in FeCl3 it is ____ .
  7. Formula of iron (ill) carbonate is _____ .

 

Complete the following table.

 

 

 Acid Radicals 

 

Basic Radicals

Chloride

Nitrate

Sulphate 

Carbonate

Hydroxide

Phosphate

Magnesium

MgCl2

Mg(NO3)2

MgSO4

MgCO3

Mg(OH)2

 Mg3(PO4)2

Sodium

 

 

 

 

 

 

Zinc

 

 

 

 

 

 

Silver

 

 

 

 

 

 

Ammonium

 

 

 

 

 

 

Calcium

 

 

 

 

 

 

Iron (II)

 

 

 

 

 

 

Potassium

 

 

 

 

 

 

 

 

Sodium chloride reacts with silver nitrate to produce silver chloride and sodium nitrate

  1. Write the equation.
  2. Check whether it is balanced, if not balance it.
  3. Find the weights of reactants and products.
  4. State the law which this equation satisfies. 

What information does the following chemical equation convey?

Zn + H2SO4 → ZnSO4+ H2

What information do the following chemical equations convey? Mg + 2HCl → MgCl2+ H2

What are polyatomic ions? Give two examples.

Name the fundamental law that is involved in every equation.

What is the valency of :

fluorine in CaF2 

What is the valency of :

sulphur in SF6

What is the valency of :

phosphorus in PH3 

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