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Why magnesium does not impart any colour to Bunsen flame while calcium does
Correct configuration of Fe +3 [26] is: (1) 1s 2 , 2s 2 , 2p 6, 3s 2, 3p 6 , 3d5 (2) 1s 2 , 2s 2, sp 6 , 3s 2 , 3p 6 , 3d 3 , 4s 2 (3) 1s 2 , 2s 2 , 2p
calculate the voltage of the cell mg/mg+//cd2+/cd at 250c.when[cd2+]=7*10-11 M,[mg2+]=1.0M and standerd electrode potential=1.97V.
How many moles of gas occupy 98 L at a pressure of 2.8 atmospheres and a temperature of 292 K?
Phosphate of a metal M has the formula M 3 (PO 4 ) 2 The formula for its sulphate would be: (1) MSO 4 (2) M (SO 4
Analysis show that nickel oxide has formulla ni .98 O 1.00 what fraction of the of nickel exist as ni+3 & Ni +2 Ans) ni+2=95.91 and ni+3=4.09
I would like to know why you stop heating the sulphuric acid before placing in the copper oxide in making copper sulphate crystals
#role of boiler feed water
what is diagonal relationship?
a. How does vulcanization change the character of natural rubber? b. Why are the numbers 66 and 6 put in the names of nylon-66 and nylon-6?
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