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
How can you distinguish between calcium and magnesium ions? Group of answer choices Flame test will...
In the flame test if two ions have similar colors what will help you distinguish one from the other?
in the flame test if two ions have similar colors what will help you distinguish one from the other?
Would you be able to distinguish between Cu2+ and Ni2+ ions in a solution if you added concentrated NaOH to the solution? What would you expect to happen? Write a balanced molecular and net ionic equation for both ions reacting with NaOH. Use Cu(NO3)2 and Ni(NO3)2 in your reactions for the respective ions. Show the correct phases of all species in reactions for full credit.
Would you be able to distinguish between Cu2+ and Ni2+ ions in a solution if you added concentrated NaOH to the solution? What would you expect to happen? Write a balanced molecular and net ionic equation for both ions reacting with NaOH. Use Cu(NO3)2 and Ni(NO3)2 in your reactions for the respective ions. Show the correct phases of all species in reactions for full credit.
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;
1) One of these statements is incorrect. Which one? Group of answer choices Energy is the capacity to do work or transfer heat. Exothermic processes transfer heat from the surroundings into the system. Endothermic processes have a positive ΔH value. Energy is neither created nor destroyed in chemical reactions. 2) Choose the compound from the set that can be classified as a salt. Group of answer choices sodium hydroxide (NaOH) acetic acid (CH3CO2H) glucose (C6H12O6) magnesium bromide (MgBr2) 3) Which...
What is the concentration of the hydroxide ions in an acidic solution? Group of answer choices 0.0 M 1.0 x 10-7 M 1.0 x 10-14 M > 1.0 x 10-7 M < 1.0 x 10-7 M
Suppose we have bought a cleaner at the grocery store, and notice it gives off a gas that turns moist red litmus paper blue. Which of the following chemical species *could* be the culprit? Group of answer choices Acetic Acid Ammonia Sodium ions Hydrogen Gas Question 21 You notice a white, crystalline powdered substance in your pantry but have no idea what it is. Suppose the substance was bought at the grocery store years ago, and the label has worn...
Can the iodine test distinguish between amylose and amylopectin? What Would you look for? Can sucrose act as a reducing sugar? Explain your answer. In the acid-catalyzed hydrolysis of starch, how can you tell when the hydrolysis of starch is complete? Why does the test work this way? What is the monosaccharide that results at the end? Polysaccharides generally do not give a positive test with Fehling's solution. Why?
Q 1 & 2 1. Sodium ion (Na) and calcium ion (Ca2) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na,CO and write the correct balanced equation(s). (Hint: recall the solubility rules for Na ion.) A saturated solution of an unknown solid reacted with AgNO, to give a pale yellow precipitate, and also reacted with Pb(NO), to give a white precipitate. Based on...