Polyatomic Ions Test Quiz!

Explanation
Dihydrogen phosphate refers to the chemical compound H2PO4-, which consists of two hydrogen atoms bonded to a phosphate ion. The negative charge indicates that it has gained an extra electron, resulting in a negatively charged ion. The formula H2PO4- represents the presence of two hydrogen atoms bonded to the phosphate ion, and the negative charge indicates the overall charge of the ion.

Explanation
Acetate is a chemical compound with the formula C2H3O2-. It is an anion, meaning it carries a negative charge. The formula indicates that it consists of two carbon atoms (C2), three hydrogen atoms (H3), and two oxygen atoms (O2). The negative charge is due to the extra electron, which balances out the positive charges of the carbon and hydrogen atoms. Acetate is commonly found in various substances, such as vinegar, and is used in many industrial processes, including the production of plastics and solvents.

Explanation
Hydrogen sulfite, represented by the chemical formula HSO3-, is an anion that consists of one hydrogen atom bonded to a sulfite ion. The sulfite ion, SO3^2-, has a negative charge of 2, and when it combines with a hydrogen ion (H+), it forms the hydrogen sulfite anion. This anion is commonly found in various chemical reactions and compounds, such as in acidic solutions and as a component of certain salts. The correct answer, HSO3-, accurately represents the chemical formula for hydrogen sulfite.

Explanation
The given correct answer, HSO4-, represents the hydrogen sulfate ion. This ion consists of one hydrogen atom bonded to a sulfate ion (SO4^2-). The sulfate ion has a charge of -2, so the hydrogen sulfate ion has a charge of -1. The HSO4- ion is often found in acidic solutions and is an important component in many chemical reactions.

Explanation
Hydrogen carbonate, also known as bicarbonate, is represented by the chemical formula HCO3-. This ion consists of one hydrogen atom bonded to one carbon atom, which is in turn bonded to three oxygen atoms. The negative charge on the ion indicates that it has gained an extra electron, giving it a net charge of -1. Hydrogen carbonate is commonly found in nature, particularly in the form of bicarbonate salts. It plays a crucial role in maintaining the pH balance in various biological systems, including the human body.

Explanation
H2PO4- is the chemical formula for the dihydrogen phosphate ion. This ion consists of two hydrogen atoms (dihydrogen) and one phosphate group (phosphate). The term "dihydrogen" indicates that there are two hydrogen atoms bonded to the phosphate group. Therefore, the correct name for this ion is dihydrogen phosphate.

Explanation
The given correct answer "Acetate" is the name of the ion C2H3O2-. Acetate is a negatively charged ion that is derived from acetic acid. It is commonly found in various chemical compounds and is used in many industrial and biological processes.

Explanation
The correct answer is "Hydrogen sulfate" because HSO4- is the chemical formula for the hydrogen sulfate ion. Hydrogen sulfate is an acid anion that forms when sulfuric acid (H2SO4) loses one of its hydrogen ions. It is a polyatomic ion with a negative charge, and it is commonly found in various chemical compounds and salts.

Explanation
Hydrogen carbonate is the correct answer because HCO3- is the chemical formula for the hydrogen carbonate ion. It is also known as bicarbonate. This ion consists of one hydrogen atom bonded to one carbon atom and three oxygen atoms, giving it a negative charge. Hydrogen carbonate is commonly found in many substances, such as baking soda, and it plays important roles in various biological processes, including maintaining the pH balance in the body.

Explanation
Nitrite (NO2-) is a negatively charged polyatomic ion that consists of one nitrogen atom bonded to two oxygen atoms. The nitrogen atom has a +3 oxidation state, while each oxygen atom has a -2 oxidation state. This results in a net charge of -1 for the nitrite ion. Nitrite is commonly found in various chemical compounds and is often used as a food preservative. It can also be produced by bacteria in the human body and has been linked to various health effects, both beneficial and harmful, depending on the context and concentration.

Explanation
Nitrite (NO2-) is a polyatomic ion that consists of one nitrogen atom and two oxygen atoms. It is commonly found in various chemical compounds and is known for its role as a strong oxidizing agent. Nitrite is often used in industrial processes, food preservation, and water treatment. It can also be formed in the human body as a byproduct of nitric oxide metabolism. Overall, nitrite is an important chemical species with various applications and biological significance.

Explanation
Nitrate is represented by the chemical formula NO3-. It is an anion that consists of one nitrogen atom bonded to three oxygen atoms. The negative charge on the nitrate ion is due to the extra electron. Nitrate ions are commonly found in fertilizers and are essential for plant growth. They can also be found in water sources and can have harmful effects on human health if present in high concentrations.

Explanation
NO3- is the chemical formula for nitrate. Nitrate is an anion that consists of one nitrogen atom bonded to three oxygen atoms. It is commonly found in fertilizers and is an essential nutrient for plants. Nitrate can also be found in water sources and can have both beneficial and harmful effects depending on its concentration.

Explanation
Cyanide is represented by the chemical formula CN-. The CN- ion consists of a carbon atom bonded to a nitrogen atom, with a negative charge. Cyanide is a highly toxic compound that can inhibit the function of enzymes in the body, leading to severe health effects and even death. It is often used in industrial processes, such as gold mining and electroplating, but also has a history of being used as a poison. The negative charge of CN- allows it to readily react with other substances, making it a versatile and dangerous compound.

Explanation
The given answer "hydroxide" is correct because OH- represents the hydroxide ion. The hydroxide ion is a negatively charged polyatomic ion composed of one oxygen atom and one hydrogen atom. It is commonly found in chemical compounds such as bases and alkalis. Therefore, "hydroxide" is the appropriate term to describe OH-.

Explanation
The answer OH- is correct because hydroxide (OH-) is a negatively charged ion that consists of one oxygen atom and one hydrogen atom. It is commonly found in compounds such as sodium hydroxide (NaOH) and calcium hydroxide (Ca(OH)2). The OH- ion is known for its basic properties and is often involved in chemical reactions, particularly in acid-base reactions where it combines with hydrogen ions (H+) to form water (H2O).