Two salts, A and B, are known to contain the same anion combined with different alkaline earth metal ions. Samples of the salts were placed in test tubes of water and tested, as shown.
What is the name of reagent X?
What is the name of the common ion in salts A and B?
Which of the salts would produce a colored flame in a flame test?
Which of the following is a property of the gas produced by the reaction of A with X?