The presence of water may be tested using either anhydrous cobalt(II) chloride or anhydrous copper(II) sulfate. Which observation would be correct when water is present?
- AAnhydrous cobalt(II) chloride turns from blue to white.
- BAnhydrous cobalt(II) chloride turns from pink to blue.
- CAnhydrous copper(II) sulfate turns from blue to pink.
- DAnhydrous copper(II) sulfate turns from white to blue.