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What is cupric cyanide tetra hydrate formula?
Cu(CN2) * 4H2O The Asterisk is a dot in most chemistry manuals. The Copper has a charge of +2 in the formula and the Cyanide (CN-) a -1. Cupric is for the higher charge of copper (+2), cuprous is for the lower charge (+1).
How gold is extracted from its alluvial gravel?
IMPORTANT ORE: ALLUVIAL GRAVEL MAC ARTHUR FORREST cyanide process crushing and concentration: the ore is crushed and then concentrated by n froth flotation process roasting : the concentrated ore is roasted in excess of air when the impurities are oxidised and escape as their volatile liquid treated with KCN: IT IS TRETED WITH dil kcn for 24 hrs the gold dissolve from it and form complex solution of potassium aurocyanide 4au + 8KCN + 2HO + O GIVES 4K(AU(CN2)) + KOH 2 2 precipitation of gold : the solution of filtrate is remove and gold is precipitated anode:impurities cathode:gold electrolyte:aucl3 +hcl onpassing through current the pure metal precipitated in cathode
What is cn2 in the atmosphere?
CN2 in the atmosphere is not an actuality. The 'C' stands for carbon, but there is no carbon in the atmosphere, carbon is not a gas. N2 stands for nitrogen. There is nitrogen in the air. Perhaps it is CO2 that needs more clarification. CO2 is Carbon Dioxide. There is carbon dioxide in the air because that is what humans give off when they exhale. Plants need this to survive.
What is cupric cyanide tetra hydrate formula?
Cu(CN2) * 4H2O The Asterisk is a dot in most chemistry manuals. The Copper has a charge of +2 in the formula and the Cyanide (CN-) a -1. Cupric is for the higher charge of copper (+2), cuprous is for the lower charge (+1).
How gold is extracted from its alluvial gravel?
IMPORTANT ORE: ALLUVIAL GRAVEL MAC ARTHUR FORREST cyanide process crushing and concentration: the ore is crushed and then concentrated by n froth flotation process roasting : the concentrated ore is roasted in excess of air when the impurities are oxidised and escape as their volatile liquid treated with KCN: IT IS TRETED WITH dil kcn for 24 hrs the gold dissolve from it and form complex solution of potassium aurocyanide 4au + 8KCN + 2HO + O GIVES 4K(AU(CN2)) + KOH 2 2 precipitation of gold : the solution of filtrate is remove and gold is precipitated anode:impurities cathode:gold electrolyte:aucl3 +hcl onpassing through current the pure metal precipitated in cathode
Basic Green Sauce?
Ingredients1 c Onions; Chopped, 2 Med.1/2 c Vegetable Oil10 oz Fresh Spinach; Chopped1/2 lb Tomatillos; Coarsely Chopped4 oz Green Chiles; Chopped, 1 cn2 ea Cloves Garlic; Crushed1 T Oregano Leaves; Dried1 c Chicken Broth2 c Dairy Sour CreamCook and stir onions in oil in a 3-quart saucepan until tender. Stir in remaining ingredients except broth and sour cream. Cover and cook over medium heat for 5 minutes, stirring occasionally. Place mixture in food processor workbowl fitted with steel blade or in a blender container; cover and process until smooth, about 1 minute. Return mixture to saucepan; stir in broth. Heat to boiling; reduce heat. Simmer uncovered for 10 minutes. Stir in sour cream. Cover and refrigerate any remaining sauce. Makes about 4 cups of sauce.
What is the fourth difference sequence formula?
A solution for 4th difference sequence is:Formula: Tn = an4+ bn3+ cn2 + dn + e1st term = a + b + c + d + e1st difference = 15a + 7b + 3c + d2nd difference = 50a + 12b + 2c3rd difference = 60a + 6b4th difference = 24aExample:Tn (term number) = 1 2 3 4 5 6 7Sequence = 1 41 209 643 1529 3101 56411st difference = 40 168 434 886 1572 25402nd difference = 128 266 452 686 9683rd difference = 138 186 234 2824th difference = 48 48 48Step 1: 4th difference = 24a:24a = 48a = 2Step 2: 3rd difference = 60a + 6b:60(2) + 6b = 138b = 3Step 3: 2nd difference = 50a + 12b + 2c:50(2) + 12(3) + 2c = 128c = -4Step 4: 1st difference = 15a + 7b + 3c + d:15(2) + 7(3) + 3(-4) + d = 40d = 1Step 5: 1st 1st term = a + b + c + d + e:2 + 3 - 4 + 1 + e = 1e = -1Answer:Tn = 2n4+ 3n3- 4n2 + n - 1
Why are there eight cervical nerve roots?
There are 8 cervical nerves because the first 7 nerves exits on the upper part of the vertebrae making up 7 nerves but then on the 7th vertebrae there's another nerve that exits below the vertebrae thus making up 8 cervical nerves from 7 cervical vertebrae.
How Do you Convert 15v DC to 5v DC?
There are several ways. the most simplest is by using a single rectifying diode that only lets current pass in one direction. This is called a half wave rectifying circuit. You only get half the power also. The second is by a full wave, or bridge rectifier which consists of 4 rectifying diodes which can usually be bought as a single package with 4 pins which are identified for correct connection. This allows the alternating cycle current to pass alternatively to the output pins in a push-push mode and maintains most of the current flow that you put into it. The result is a very jerky or spikey DC current usually higher than the rated AC voltage. To smooth the spikes, extra circuitry is needed such as capacitors and maybe some smoothing coils but is way too detailed and varied for printing here. Type in your browser "Rectifier Circuits" and you will find a smorgasborg of results where some will give a more comprehensive explanation of how AC is converted to DC. Regards
