What happens when Magnesium ribbon is burnt in air?If the product obtained is mexed with water,then what is the nature os that aqueous solution.
Breaking of glass is a physical change or chemical change ?
i want 20 physical changes and 20 chemical changes
list some chemical compounds and their chemical formulas which we use in our daily life????
Describe two changes that are harmful. Explain why you consider them harmful .How can you prevent them ?
formation of clouds is a physical change explain
write difference between physical and chemical change
why should we not put staniless steel spoon in pickle jars?
WHEN BAKING SODA IS MIXED WITH LEMON JUICE , BUBBLES ARE FORMED WITH THE EVOLUTION OF GAS . WHAT TYPE OF CHANGE IS IT? EXPLAIN
c is the symbol of carbon.what else does it represent?
When a soda water bottle is opened, a gas is released. Does a chemical reaction occur?
valency of aluminium in Al2(SO4)3
What type of change is- growth of plants? (physical/chemical) Explain.
Balance the equation-
Fe + O2 + H2O ---->Fe2O3
Making of curd from milk is a physical change.How?
What happens when Magnesium ribbon is burnt in air?If the product obtained is mexed with water,then what is the nature os that aqueous solution.
Breaking of glass is a physical change or chemical change ?
i want 20 physical changes and 20 chemical changes
list some chemical compounds and their chemical formulas which we use in our daily life????
Describe two changes that are harmful. Explain why you consider them harmful .How can you prevent them ?
formation of clouds is a physical change explain
write difference between physical and chemical change
why should we not put staniless steel spoon in pickle jars?
WHEN BAKING SODA IS MIXED WITH LEMON JUICE , BUBBLES ARE FORMED WITH THE EVOLUTION OF GAS . WHAT TYPE OF CHANGE IS IT? EXPLAIN
c is the symbol of carbon.what else does it represent?
When a soda water bottle is opened, a gas is released. Does a chemical reaction occur?
valency of aluminium in Al2(SO4)3
What type of change is- growth of plants? (physical/chemical) Explain.
Balance the equation-
rnFe + O2 + H2O ---->Fe2O3
Making of curd from milk is a physical change.How?