SCIENCE 10/June/2020 VIRTUAL ONLINE CLASS CH 4 MATERIALS : METALS AND NONMETALS CLASS DETAILS AND HOME WORk

SCIENCE 
10/June/2020
VIRTUAL ONLINE CLASS

CH 4 MATERIALS : METALS AND NONMETALS

TOPIC TAUGHT:

CHEMICAL PROPERTIES OF METALS AND NON METALS (CONTD...) 
  • REACTION WITH OXYGEN(today)
  • REACTION WITH WATER(today)
  • REACTION WITH ACID 
  • REACTION WITH BASE 
 
NOTE:


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Homework:

Q.1 Fill in the blanks:

 a.)During the reaction between metals and  water the liberation of __________gas occurs. 
b.)_________ usually shows no reaction with water.
c.)________is used to store to phosphorus.
Q.2 Answer the following:

1.)what happens when metals reacts with water?
2.)write the reaction of sodium reacts with water.(word equation)
3.)write the reaction of magnesium reacts with water. (word equation)
4.)write the reaction of zinc reacts with water.(word equation)

Q.3)give reason:
 why water can be used to store non-metals .

Q.4) State True or  false :

1) Metals like sodium and potassium reacts with vigorously cold water .
2.)Metals such as magnesium, aluminium and zinc react with steam to form their corresponding oxides with the liberation of hydrogen gas.



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