Question 986
Which of the following best describes the reaction used to prepare potassium dichromate from sodium dichromate?
Question 987
What factor determines whether chromate or dichromate ions are predominant in an aqueous solution?
Question 988
What is the approximate Cr–O–Cr bond angle in the dichromate ion?
Question 989
Which ion has a tetrahedral structure according to the provided text?
Question 990
What is the color of the crystals formed when potassium dichromate is prepared from sodium dichromate and potassium chloride?