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How can chemical reactions produce color change?
Simply put, the products are a different color from the reactants. For example, when copper reacts with a silver nitrate solution it turns the solution from colorless to blue. This is because while the silver ions (Ag+) do not affect the solution while the copper ions (Cu2+) released by the reaction are blue in the presence of water.
Cu2 plus has how many protrons and electrons?
29 protons and 27 electrons.
How many protons and electrons are in 64 29 Cu2 plus ion?
29 protons and 27electrons are present in Cu2+ ion.
170 mL of a 0.30 M copper II acetate solution is mixed with an excess of a sodium sulfide solution How many grams of copper II sulfide precipitate will form?
Cu2(C2H3O2)4 + 2Na2S --> 2CuS + 4Na(C2H3O2) 170 mL Cu2(C2H3O2)4 X 1 L/ 1OOO mL X .3 M/ 1 Mol X 2 Mol CuS/ 1 Mol Cu2(C2H3O2)4 X 159.157 g/ 1 Mol CuS = 16.2 g
What is the electron configuration of cu plus 1?
The electron configuration of Cu2+ is [Ar]3d94s0.
Solution contains metallic ion blue in colour flame test produce blue green colour The solution forms a precipitate when sodium hydroxide is added to the solution What is the ion in the solution?
Most likely copper.
Copper phosphite formula?
copper(II) phosphate can be made by mixing an aqueous copper(II) solution (i.e. CuCl2 or CuBr2) with an aqueous phosphate solution (i.e. monobasic or dibasic phosphate). A fluffy, light blue precipitate forms immediately upon addition of the copper(II) solution to the phosphate solution.
What colors do you mix together to make copper?
Copper exists in aqueous solutions as turquoise or blue colors, in both its 1+ and 2+ oxidation states (Cu+ and Cu2+}
Why copper can conduct elevtricity when solid or liquid but copperII sulphate can only conduct electricity if molten or aqueous?
Because in solution the ions Cu2+ and (SO4)2- are formed. In copper (metal) electrons can move free.
What if the formula for Cu2 plus and Iodine minus?
Cu2+ + I- --> Cu2I The compound created is Copper(I) Iodide
Why are the colours of cu2 different in water and in aqueous ammonia?
Type your answer here... it is because water is amphoteric and ammonia is basic
What is the correct cell notation for the reaction 2Au plus aq plus Cus 2Ausplus Cu2 plus aq?
Cu(s) | Cu2+(aq) Au+(aq) | Au(s)
What is the stock name for Cu2 plus?
Copper two
What is the balanced equation for copper sulfate solution and ammonia solution?
Cu2+ + 4NH3 ----> [Cu(NH3)4]2-
How can chemical reactions produce color change?
Simply put, the products are a different color from the reactants. For example, when copper reacts with a silver nitrate solution it turns the solution from colorless to blue. This is because while the silver ions (Ag+) do not affect the solution while the copper ions (Cu2+) released by the reaction are blue in the presence of water.
Why does the water colour change to blue when copper sulphate was added?
Anhydrous copper(II) sulphate is white. When added to water, it forms a solution of CuSO4(aq) which is blue because of the Cu2+ ion, which is itself a transition metal ion.
Calculate the standard emf of a cell that uses the Mg Mg2 plus and Cu Cu2 plus half cell reactions at 25 degrees C?
Cu + Mg2 --------> Cu2 + Mg Cu --------------> Cu2 + 2e Mg2 + 2e --------> Mg Cu --------------> Cu2 + 2e (E = +0.35) Mg2 + 2e --------> Mg (E = -2.36V) +0.35 + (-2.36) = -2.01V --------------------------------------… Mg + Cu2 --------> Mg2 + Cu Mg --------------> Mg2 + 2e Cu2 + 2e --------> Cu Mg --------------> Mg2 + 2e (E = +2.36V) Cu2 + 2e --------> Mg (E = -0.35V) +2.36 + (-0.35) = +2.01V
