Steam changes the colour of anhydrous cobalt (II) chlorid...
Steam changes the colour of anhydrous cobalt (II) chloride from
blue to pink
white to red
white to green
blue to white
Correct answer is A
No explanation has been provided for this answer.
''Equal volumes of all gases at the same temperature and pressure contain the same number of...
What is the value of n in the following equation? Cr2O72- + 14H+ + ne- → 2Cr 3+ + 7H2O...
What is the percentage by mass of H in CH3COOH ...
The formula of the compound formed between a trivalent metal, M and a divalent non-metal, Y is ...