Chemistry 121 Chapter 3 Polyatomic Ions Fill In Blank

Explanation
The correct answer is Ammonium. Ammonium is the name for the polyatomic ion symbol NH4. The NH4 ion is formed when ammonia (NH3) accepts a proton (H+) to become NH4+. It is commonly found in compounds such as ammonium nitrate, ammonium chloride, and ammonium sulfate.

Explanation
The formula for the polyatomic ion ammonium is NH4. This ion consists of one nitrogen atom bonded to four hydrogen atoms. It is positively charged due to the loss of one electron by the nitrogen atom. The formula NH4 represents the composition of this ion, with the nitrogen atom in the center and the four hydrogen atoms surrounding it. This formula is commonly used in chemical equations and reactions involving ammonium compounds.

Explanation
The correct answer is Mercury because the question is asking for the name of the polyatomic ion symbol Hg2 2+. In chemistry, Hg2 2+ represents a cation with a charge of 2+ made up of two mercury atoms bonded together. Therefore, the name of this polyatomic ion symbol is Mercury.

Explanation
The correct answer is HG2 2+. This is the formula (symbol) for the polyatomic ion Mercury. The "HG2" represents two mercury atoms bonded together, and the "2+" indicates that the ion has a positive charge of 2.

Explanation
The name for the polyatomic ion symbol OH- is hydroxide. The hydroxide ion consists of one oxygen atom and one hydrogen atom, with a negative charge. It is commonly found in compounds such as bases and alkalis.

Explanation
The formula for the polyatomic ion hydroxide is OH-. This ion consists of one oxygen atom (O) and one hydrogen atom (H), with a negative charge indicated by the minus sign. The hydroxide ion is commonly found in many chemical compounds and is known for its basic properties.

Explanation
The correct answer is "Cyanide." Cyanide is the name for the polyatomic ion symbol CN-.

Explanation
The formula (symbol) for the Polyatomic Ion Cyanide is CN-.

Explanation
The name for the polyatomic ion symbol CO3 2- is carbonate.

Explanation
The formula (symbol) for the Polyatomic Ion Carbonate is CO3 2-. This means that the ion consists of one carbon atom (C) bonded to three oxygen atoms (O), and it carries a charge of -2. The subscript "2-" indicates that there are two negative charges associated with the carbonate ion.

Explanation
The correct answer is "Sulfate." The symbol SO4 2- represents the polyatomic ion sulfate. This ion consists of one sulfur atom bonded to four oxygen atoms, with a charge of 2-. Sulfate is a common ion found in various compounds and is widely used in chemistry and industry.

Explanation
The formula (symbol) for the polyatomic ion sulfate is SO4 2-.

Explanation
The correct answer is Nitrate. Nitrate is the name for the polyatomic ion symbol NO3-. The symbol NO3- represents a negatively charged polyatomic ion composed of one nitrogen atom and three oxygen atoms. Nitrate ions are commonly found in compounds such as nitrates, which are important in fertilizers and explosives.

Explanation
The correct formula for the Polyatomic Ion Nitrate is NO3-. The symbol NO3- represents a negatively charged ion consisting of one nitrogen atom (N) bonded to three oxygen atoms (O). The negative charge is indicated by the minus sign (-). This formula is commonly used in chemistry to represent the nitrate ion, which is a common component of many compounds and is involved in various chemical reactions.

Explanation
The correct answer is Phosphate because the symbol PO4 3- represents a polyatomic ion with a charge of 3-. The polyatomic ion phosphate consists of one phosphorus atom bonded to four oxygen atoms. It is commonly found in compounds such as DNA, RNA, and ATP, and plays a crucial role in various biological processes.

Explanation
The formula (symbol) for the Polyatomic Ion Phosphate is PO4 3-. This means that it consists of one phosphorus atom (P) bonded to four oxygen atoms (O), with a charge of 3- on the ion. The 3- charge indicates that the ion has gained three extra electrons, making it negatively charged. This ion is commonly found in various compounds and is important in biological processes, such as DNA and ATP.

Explanation
The correct answer is "Permanganate." Permanganate is the name for the polyatomic ion symbol MnO4-.

Explanation
The formula (symbol) for the Polyatomic Ion Permanganate is MnO4-. The negative sign indicates that the ion has a charge of -1. The ion consists of one manganese atom (Mn) bonded to four oxygen atoms (O), forming a tetrahedral shape. This ion is commonly found in permanganate salts and is a strong oxidizing agent.

Explanation
The correct answer is "Dichromate." This is the name for the polyatomic ion symbol CR2O7 2-. The ion is composed of two chromium atoms and seven oxygen atoms, and it carries a charge of -2. The name "dichromate" is derived from the Greek prefix "di-" meaning two, indicating the presence of two chromium atoms in the ion.

Explanation
The formula (symbol) for the Polyatomic Ion Dichromate is CR2O7 2-.