The confirmatory test for iron is:
Group of answer choices
adding KSCN solution and observing a blue color;
adding HCl and observing a white precipitate;
adding NaF solution and observing a red color;
adding KSCN solution and observing a red color;
The confirmatory test for iron is: Group of answer choices adding KSCN solution and observing a blue color; adding HCl a...
How can you distinguish between calcium and magnesium ions? Group of answer choices Flame test will yield a brick red color for calcium Reacting the solution with a hydroxide Flame test will yield a brick red color for magnesium Reacting the solution with an oxalate salt
2. How are the Group I cations first precipitated from solution? 3. Write the net-ionic equation for the initial precipitation of any one Group I cation from your unknown solution. 4. Lead(II) chromate is used as a yellow pigment in paints. Write the net-ionic equation for its formation in this Experiment during the confirmatory test for lead(II). 5. When ammonia is added to a white precipitate of mercury(I) chloride, the precipitate turns grayish-black. Write the net-ionic equation for what happens,...
QUESTION 1 10 points Save Answer be Treatment of an unknown solution containing Group III cations with sodium hydroxide and hydrogn alpero xides produces a yellowish solution and a green precipitate. Which cations are most probaby presetn? Aluminum and Chromium aluminum and nickel Chromium and Nickel Iron and Chromium QUESTION 2 10 points Save Answer which of the following is added to the nickel (II)ion to form a blue complex ion? ammonia Dimethylglyoxime (DMG) KSCN NaOH QUESTION 3 10 points...
Pablo Picasso's "Guernica" depicts a scene from a war using what main color scheme? Group of answer choices 1.black, white, and grey 2.red and orange 3.blue and grey 4.all warm colors
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answering first part(1) color change is due to presence? And what
was the reason for the equilibrium turn to reverse direction? And
also last 2 questions.!
Chemistry 102 EXPERİMENT3 Equilibrium& Le Chatelier's Principle tive Qualita of this experiment is to study qualitative aspects of chemical systems in dynamic equilibrium. in doing this experiment, you will learm the operation of Le Chateliers principle. n Vslowly add 1 to 2 drops of dilute 6 M sodium hydroxide solution to...
Intellectual Property in Fashion/ Trademarking color in the Red Sole case was Group of answer choices a. Not allowed as color can’t be trademarked b.Allowed if the rest of the shoe was of a contrasting color c.Not allowed as the color had been copyrighted and not trademarked d.None of the above
1.. As the wavelength of light increases, the frequency of light Group of answer choices a. Stays the same b. increases c. decreases 2.. A typical AM radio station broadcasts at a frequency of 1070. MHz. What is the wavelength of the electromagnetic radiation generated by this radio station? 1 Hz = 1 s-1 1 MHz = 106 Hz Group of answer choices a. 3.21 x 10^11 m b. 2.804 X 10 ^5 m c. 0.2804 m 3.. Use this...
State amendments to the International codes are indicated with? Group of answer choices Blue text Red text Vertical dotted lines An arrow
3. Explain the series of color changes that can occur on thymol blue indicator by the addition of the following solutions. In each case, give the approximate pH of the solution Color change Red to Yellow Yellow to Blue pH range 12 to 2.8 Thymol blue 8.2 to 9.1 a) A few drops of thymol blue are added to 0.1 M aqueous solution of HCl(aq). b) By adding some solid sodium acetate, NaCH,O2 to a solution of (a) e) By...
1 pts State amendments to the International codes are indicated with: Group of answer choices Blue text Red text Vertical dotted lines An arrow