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Install NowSwathi Ambati
Dec 31, 2014
Aluminium is a highly reactive metal. But why it is used for making utensils for cooking?
Aluminium is a highly reactive metal. But why it is used for making utensils for cooking?
Alumin...
R murali
Jul 18, 2014
- Show the formation of Na2O and MgO by the transfer of electrons
- Show the formation of Na2O and MgO by the transfer of electrons
Electronic configuration of Sodium – 1s2 2s2 2p6 3s1
It has one valence electron, it will lose one el...
Keisam Robin
Jan 19, 2015
When a green iron salt is heated strongly its colour finally changes to black and odor of burning sulphur is given out. 1. Name the iron salt 2. Name the type of reaction that takes place during heating of iron salt. 3. Write the balanced chemical equation for the reaction involved.
Rujuta Killedar
Sep 24, 2014
What is a thermit reaction??wat are its types??give egs.
R murali
Jul 18, 2014
- Why is sodium chloride soluble in water but not in kerosene or petrol?
- Why is sodium chloride soluble in water but not in kerosene or petrol?
Mr s n tiwari
Sep 11, 2014
A few drops of sulphuric acid are added into water before electrolysis. why?
Swathi Ambati
Jan 2, 2015
Why copper is added to pure gold for making ornaments?
Pure gold is very soft and it is not used for making jewellery. Copper or silver is added to pure gold to make it hard. Pure gold is called 24 carat go...
Adithyan Sanal
Apr 25, 2015
When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with brisk effervescence. Name this gas. Describe the method of testing this gas
R murali
Jul 18, 2014
- An element reacts with oxygen to give a compound with high melting point. This compound is also soluble in water. The element is likely to be (a) Ca (b)C (c)Si (d) Fe
- An element reacts with oxygen to give a compound with high melting point. This compound is also soluble in water. The element is likely to be (a) Ca (b)C (c)Si (d) Fe
Silicon reacts with oxygen and forms silicon dioxide. ...
R murali
Jul 18, 2014
- Why do ionic compounds do not conduct electricity in solid state. But conduct electricity in molten state?
- Why do ionic compounds do not conduct electricity in solid state. But conduct electricity in molten state?
Swathi Ambati
Dec 31, 2014
Aluminium is a highly reactive metal. But why it is used for making utensils for cooking?
Aluminium is a highly reactive metal. But why it is used for making utensils for cooking?
Alumin...
R murali
Jul 18, 2014
- Show the formation of Na2O and MgO by the transfer of electrons
- Show the formation of Na2O and MgO by the transfer of electrons
Electronic configuration of Sodium – 1s2 2s2 2p6 3s1
It has one valence electron, it will lose one el...
Keisam Robin
Jan 19, 2015
When a green iron salt is heated strongly its colour finally changes to black and odor of burning sulphur is given out. 1. Name the iron salt 2. Name the type of reaction that takes place during heating of iron salt. 3. Write the balanced chemical equation for the reaction involved.
Rujuta Killedar
Sep 24, 2014
What is a thermit reaction??wat are its types??give egs.
R murali
Jul 18, 2014
- Why is sodium chloride soluble in water but not in kerosene or petrol?
- Why is sodium chloride soluble in water but not in kerosene or petrol?
Mr s n tiwari
Sep 11, 2014
A few drops of sulphuric acid are added into water before electrolysis. why?
Swathi Ambati
Jan 2, 2015
Why copper is added to pure gold for making ornaments?
Pure gold is very soft and it is not used for making jewellery. Copper or silver is added to pure gold to make it hard. Pure gold is called 24 carat go...
Adithyan Sanal
Apr 25, 2015
When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with brisk effervescence. Name this gas. Describe the method of testing this gas
R murali
Jul 18, 2014
- An element reacts with oxygen to give a compound with high melting point. This compound is also soluble in water. The element is likely to be (a) Ca (b)C (c)Si (d) Fe
- An element reacts with oxygen to give a compound with high melting point. This compound is also soluble in water. The element is likely to be (a) Ca (b)C (c)Si (d) Fe
Silicon reacts with oxygen and forms silicon dioxide. ...
R murali
Jul 18, 2014
- Why do ionic compounds do not conduct electricity in solid state. But conduct electricity in molten state?
- Why do ionic compounds do not conduct electricity in solid state. But conduct electricity in molten state?