PIS BARODA STD-8

SCIENCE  12/06/2020 VIRTUAL ONLINE CLASSES CH-4 METALS AND NON-METALS TOPIC TAUGHT: CHEMICAL PROPERTIES OF METALS AND NON-METALS ( Today Cont... ) SUB_TOPIC: Metals reacts with Acid Non-Metals reacts with Acid  NOTE: Watch Video no.5 and Video.no.3 from between us portal. HOME WORK:    Q.1 Fill in the Blanks: 1.  Most metals react with dilute _______ acids to form their salts and liberate hydrogen gas.  2.The hydrogen gas liberated does not support burning but itself burns with a _____ sound. 3.Metals react with dilute hydrochloric acid to form _________ salts. 4.Sulphur reacts with hot concentrated nitric acid and forms sulphuric acid and _______ gas. 5.Metals react with dilute sulphuric acid to form ________ salts. Q.2 Answer the following questions: 1.Write the chemical  reaction of sodium reacts with dil.hydrochloric acid. 2.Write the chemical reaction of magnesium reacts with sulphuric acid. 3.Write the chemical reactions of Iron reacts with hyd...

Subject -Hindi. Date :- ११/०६/2020 पाठ - ये है भारत देश हमारा (कविता ) Taught - कविता  की व्याख्या  Homework - Download the worksheet , write answers and then upload it.

Determiners  Discussion Click on below mentioned link for practice sheet https://drive.google.com/file/d/1zkRdpbKc06XrEDY3hM3pvj1Lt8mVarXI/view?usp=drivesdk

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: WATCH VIDEO 3 on between us portal 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.)Me...

Determiners Click on the below link for PPT https://drive.google.com/file/d/1rkAP9XHo12GzRqe31pHWMRYf1A9KJaYI/view