a) The sizes of punch and blanking are equivalent to its diameters. The blanking die diameter is Db = 65 mm
Diameter of the blanking punch is,
dpunch = Db - 2c
Here, c = Ac (thickness)
For aluminium, Ac = 0.06
c = (0.06) (3.2 mm) = 0.192 mm
dpunch = (65 mm) - 2 (0.192 mm)
= 64.616 mm
b) The diameter of the punching punch is equivalent to the interior diameter of the washer.
Thus, diameter of the punching die is, Dh = 30 mm
Diameter of the punching die is,
ddie = Dh + 2c
= (30 mm) + 2 (0.192)
= 30.384 mm
Answer:
To calculate the no. of moles you must know mass and molar mass of the product
Explanation:
no. of moles =mass/molar mass
Missing question: <span>Cr, Mn, Fe, Ba, Cu.
Answer is: Ba (barium).
Barium is metal from second group of periodic table of elements. Barium looses two electrons and has oxidation number +2.
Chromium has different oxidation numbers, usually +3 and +6, iron has oxidation numbers +2 and +3, copper +1 and +2 in their compounds.</span>
Thru ionic bonding. The oppositely charged ions attract each other so ionic bond forms. Ionic bonding occurs when a metal bonds with a non-metal.
Answer:
Ammonium chloride
Explanation:
The powder is:- Ammonium chloride
When mixed with silver nitrate, white prescipitate of silver chloride is formed as:-
When mixed with sodium hydroxide, ammonia gas is formed which has noxious order.
Ammonia gas on reaction with nickel (II) hydroxide forms deep blue colored complex as shown below:-
![Ni(OH)_2(s) + 6NH_3(aq)\rightarrow [Ni(NH_3)_6]^{2+}(aq) + 2OH^{-}(aq)](https://tex.z-dn.net/?f=Ni%28OH%29_2%28s%29%20%2B%206NH_3%28aq%29%5Crightarrow%20%5BNi%28NH_3%29_6%5D%5E%7B2%2B%7D%28aq%29%20%2B%202OH%5E%7B-%7D%28aq%29)
