No
Mercury (I) Hydroxide Hg OH2 (2 is subscript) Mercury(II) Hydroxide Hg (OH)2
When potassium dichromate reacts with oxalic acid, it undergoes a redox reaction where the dichromate ion is reduced to chromium(III) ion, and the oxalic acid is oxidized to carbon dioxide and water. The products of this reaction are chromium(III) oxide, carbon dioxide, and water.
Calcium chloride (CaCl2) is formed when a solution of calcium hydroxide (Ca(OH)2) is neutralized by hydrochloric acid (HCl).
Calcium chloride would be formed from the reaction between hydrochloric acid (HCl) and calcium hydroxide (Ca(OH)2), as hydrogen from the acid combines with the hydroxide from the base to form water, leaving behind calcium and chloride ions that combine to form calcium chloride (CaCl2).
Water is the oxyde of hydrogen - H2O.Added:I agree, though if 'seen' from the oxygen side it could be named as an hydride of Oxygen: OH2, (compare PH3, phosphorhydride) but it is rather unusual.
It is already balanced
It's two hydrogen atoms bonded to an oxygen atom. IOW, water. Though it is not an atom, it is a molecule, more often written as H2O
6566
The symbol OH2 typically refers to the hydroxide ion (OH-) combined with a hydrogen ion (H+), resulting in a hydronium ion (H3O+). This is commonly seen in acid-base reactions and represents a protonated form of water.
Copper Hydroxide
as an antacid or a laxative
An alkyloxonium is an oxonium ion derived from an alkyl alcohol, of general formula R-OH2+.
Yes, NI3 has a dipole moment because it is a polar molecule. The nitrogen atom is more electronegative than the iodine atoms, resulting in an uneven distribution of charge and creating a dipole moment.
the reaction produces heat
Two hydroxide ions would best be written as 2 OH-1 in an ionic equation, rather than either of the alternatives given in the question. If the two hydroxide ions occur together with a divalent cation such as magnesium in a compound, then the hydroxide ions would be written as (OH)2. Two ions should never be written as OH2, because that is the formula for water, with the ions in an unconventional order, rather than the formula of ions at all.
CuSO4.5H2O === heat===> CuSO4 + 5H2O CuSO4.5H2O is the blue copper sulphate you have in a school chemistry lab. When you heat it, it turns white to CuSO4, as the heat drives off the water of crystallization. The analogy is like holding a ball(5H2O) in you hand(CuSO4). The ball is not part of you, but if your hand is 'twisted/(heated)' , then you let go of the ball.
Protons (H+, responsible for the acidic behaviour) want to stay near to an anion (the negative part of the acid, eg. Cl-) or (only when present) stick to the partially negative side of a water molecule (the O-side in polar water molecules) Example: HCl + H2O --> Cl- + H+OH2 \_______________/^