There several possibilities: 1  A threatened miscarriage is when you are showing signs that you may be about to miscarry. 2  Not all threatened miscarriages actually miscarry. 3  If you have cramps, or you are bleeding, but your cervix is not opening, then you may be diagnosed with a threatened miscarriage.
Iron(III) oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode: 4 fe + 3 o 2 + 2 h 2 o â 4 feo(oh)
Copper(II) hydroxide. Copper(II) hydroxide is the hydroxide of the copper with the chemical formula of Cu(OH)2. It is a pale blue solid. Some forms of copper(II) hydroxide are sold as stabilized copper hydroxide, although they likely consist of a mixture of copper(II) carbonate and hydroxide. Copper hydroxide is a weak base.