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why sodium react with water form a fair
names for : A , B , C , D , E , F ,..........., X , Y , Z .
Which type of bond is formed between similar atoms: (1) Ionic (2) Covalent (3) Coordinate (4) Metallic Ans: Covalent
Q. What do you mean by electro-magnetic radiation? In the untimely twentieth century scientists accepted the idea that an atom consisted of a massive positively charged nucleus
classification of mixture according to particle size, uniform mixture, composed of solute and solvent
what is wurtz reaction?
In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields: (1)n=
Q. What is the electromagnetic spectrum? Ans. Light is a very small slice of the electromagnetic spectrum, just the wavelengths that our eyes can see, which range from abo
The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is: (1) -0.54 eV (2)
I am supposed to write a blanced chemical equation for Lead(II) nitrate (aq) and ammonium chloride (aq) creating a precipitate of lead(II) chloride. I wrote the unbalanced equation
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