potassium, Chemistry

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what is potassium

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The atomic number of an element mass number & electrons, The atomic number ...

The atomic number of an element is 35 and mass number is 81. The number of electrons in the outer most shell is: (1) 7       (2) 6         (3) 5       (4) 3 Ans: 7

DSC., How to get Energy vs Temperature curve from DSC data

How to get Energy vs Temperature curve from DSC data

Experiment of an air oven, An air oven A large tin can is used as an a...

An air oven A large tin can is used as an air oven. A hole through the lid fitted with a cork holds a thermo- meter, and the saucer or dish rests on a wire gauze bridge placed

How to solve, The total number of valence electrons in 4.2 gm N-3 of ion i...

The total number of valence electrons in 4.2 gm N-3 of ion is ( NA is the Avogadro''s number): (1) 1.6NA

Simple and mixed amines - nitrogen containing compounds, Simple and Mixed A...

Simple and Mixed Amines Secondary and tertiary amines may be categorized as simple or mixed amines as per to all the alkyl or aryl groups attached to the nitrogen atom are simi

Law of multiple proportion, a metal forms 2 oxides. the higher oxide has 80...

a metal forms 2 oxides. the higher oxide has 80% metal. 0.72g of lower oxide gave 0.8g of higher oxide when oxidised. show that law of multiple proportion is valid?

Westron, explain industrial manufacturing process of westron and explain th...

explain industrial manufacturing process of westron and explain the advantages and disadvantages of westron

Periodic table, why lanthanide series is called lanthanide?

why lanthanide series is called lanthanide?

Determine heat of combustion for ethane, The heat of combustion for ethane,...

The heat of combustion for ethane, C 2 H 6 , is 52.0 kJ/g. How much heat could be released if 1 mol of ethane undergoes full combustion? Answer:

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