physical, Chemistry

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find H^+ concentration if Ph=4.90

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Determine total number electrons in nitrate ion, Nitrogen atom has an atomi...

Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be: (1) 8        (2) 16      (3) 32

What is nucleophile?, A nucleophile is a chemical species that donates an e...

A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction. All molecules or ions with a free pair of electrons or a

The electronic configuration of an element with atomic no., The electronic ...

The electronic configuration of an element with atomic number 7  i.e. nitrogen atom is; (1) 1s 2 , 2s 1 , 2p 3 x                               (2)  1s 2 , 2s 2 , 2p 2 x ,

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At 673k co is best reducing agent beacause gibs free energy curve is greater.

Factors that effect the solubility of a solute , factors that effect the so...

factors that effect the solubility of a solute  The solubility of a solute is effected by three factors like 1) Nature of solute 2) Nature of solvent 3) Temperature Nature

Thermodynamics / Quantum Mechanics, 1. A laboratory animal exercised on a t...

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Dehydration., the complete equation for forming a peptide bond through dehy...

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Fe atomic number = 26 atom has the electronic arrangement, Fe(atomic number...

Fe(atomic number = 26) atom has the electronic arrangement: (1) 2, 8,  8, 8         (2) 2, 8, 16        (3) 2, 8,14, 2             (4) 2, 8, 12, 4 Ans:  2, 8,14, 2

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