Negative Ion Quiz

Acetate is a polyatomic anion with a chemical formula of C2H3O2-. It is derived from acetic acid and commonly found in various chemical compounds.

The correct chemical symbol for Bromide is Br-, representing the bromide ion with a negative charge.

Carbonate is a polyatomic ion with a charge of -2 represented by the chemical formula CO3^2-. This ion is commonly found in compounds such as calcium carbonate (CaCO3) and sodium carbonate (Na2CO3).

Hydrogen Carbonate is also known as bicarbonate. Its chemical formula is HCO3-, which consists of one hydrogen atom, one carbon atom, and three oxygen atoms with a negative charge.

Chlorate is a polyatomic ion with a -1 charge, consisting of one chlorine atom and three oxygen atoms.

Chloride is commonly represented by the chemical symbol Cl- as it gains an electron to attain a stable configuration.

Chlorite has a chemical formula of ClO2- where the chlorine atom is bonded to two oxygen atoms and has a negative charge.

The correct chemical formula for Chromate is CrO42-. Chromate is a polyatomic anion consisting of one chromium atom and four oxygen atoms, each with a -2 charge.

Dichromate is a polyatomic ion with the chemical formula Cr2O72-. The incorrect answers provided do not represent the correct formula for dichromate.

Fluoride is represented by the chemical symbol F- in chemistry.

Hydroxide is a negatively charged polyatomic ion consisting of one oxygen atom and one hydrogen atom. Its chemical formula is OH-.

The correct chemical formula for hypochlorite is ClO-. It is a negatively charged polyatomic ion consisting of one chlorine atom and one oxygen atom.

The correct chemical symbol for Iodide is I-. It represents an iodide ion with a negative charge, indicating the presence of an extra electron.

Nitrate is a polyatomic ion composed of one nitrogen atom and three oxygen atoms, carrying a negative one charge.

Nitrite ion is represented by NO2- with a negative charge. It is different from nitrate ion (NO3-), ammonium ion (NH4+), and sulfate ion (SO4^2-).

Oxalate is a dianion with the formula C2O42-. It consists of two carbon atoms, four oxygen atoms, and carries a charge of -2.

Hydrogen Oxalate is the salt of oxalic acid, with the formula HC2O4-.

The correct chemical formula for the oxide ion is O2-, representing oxygen with a -2 charge. This is because oxygen typically gains two extra electrons when it forms an ionic bond.

Perchlorate is a polyatomic ion composed of one chlorine atom and four oxygen atoms with a single negative charge, represented by ClO4-.

The correct chemical formula for permanganate is MnO4-. Permanganate is an anion with a -1 charge, and its formula reflects this by combining one manganese (Mn) atom with four oxygen (O) atoms.

Phosphate is a polyatomic ion composed of one phosphorus atom bonded to four oxygen atoms, carrying a negative three charge (PO43-). The incorrect answers provided do not accurately represent the chemical formula for Phosphate.

Monohydrogen Phosphate has the chemical formula HPO42-, indicating one hydrogen atom, one phosphorus atom, and four oxygen atoms with a -2 charge.

Dihydrogen Phosphate is an anion with the chemical formula H2PO4-, consisting of two hydrogen atoms, one phosphorus atom, and four oxygen atoms.

Sulfate ion has a chemical formula of SO42- where sulfur is bonded to four oxygen atoms with a -2 charge.

Hydrogen Sulfate is commonly represented as HSO4- in its ionic form. The other options provided do not accurately represent the chemical formula for Hydrogen Sulfate.

Hydrogen Sulfide is represented by the formula HS- in its ionic form. H2S is the molecular formula for Hydrogen Sulfide, HSO4 is the formula for Bisulfate, and SO2 is the formula for Sulfur Dioxide.

Sulfite is a polyatomic anion with the chemical formula SO32-. The incorrect answers provided are variations of the sulfite ion with different elemental compositions or charges.

Hydrogen Sulfite is represented by the chemical formula HSO3-. It consists of one hydrogen atom, one sulfur atom, and three oxygen atoms with a negative charge.