the reaction produces heat
The reaction shows that calcium hydroxide (Ca(OH)2) dissociates in water to form calcium ions (Ca2+) and hydroxide ions (OH-). This dissociation leads to the formation of two hydroxide ions for every one calcium ion.
H2O and OH2 are not the same thing. H2O represents a water molecule composed of two hydrogen atoms and one oxygen atom. OH2 is not a valid chemical formula and does not represent any known compound.
6566
Copper Hydroxide
as an antacid or a laxative
It is already balanced
An alkyloxonium is an oxonium ion derived from an alkyl alcohol, of general formula R-OH2+.
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
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).
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.
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.
CuSO4 * 5H2O ----> CuSO4 + 5H2O. This is true because CuSO4 * 5 H2O is a salt weakly bounded to water, that is why it is hydrous. When it decomposes, the weak bonds are broken making the products above. CuSO4*5H2O formula is [Cu(OH2)4]SO4*H2O CuSO4 + 5H2O --> [Cu(OH2)4]SO4*H2O