Symbols And Names Of Polyatomic Ions! Trivia Quiz

Explanation
The given answer "H+" is correct because it represents a hydrogen ion. In this form, hydrogen has lost its electron and has a positive charge. This is commonly found in acidic solutions where hydrogen ions are released.

Explanation
Fluoride is a chemical element with the symbol F. It is a highly reactive, pale yellow gas that belongs to the halogen group of elements. Fluoride is commonly used in toothpaste and water fluoridation to prevent tooth decay. It is also used in various industries, such as the production of aluminum and uranium.

Explanation
The correct answer is Li + because lithium is a positively charged ion. In its neutral state, lithium has 3 electrons, but it loses one electron to achieve a stable electron configuration, resulting in a +1 charge. Therefore, the symbol Li + represents the lithium ion with a positive charge.

Explanation
Chloride is the anion form of the element chlorine, represented as Cl-. It is a negatively charged ion that is commonly found in compounds such as sodium chloride (table salt). Chloride ions play important roles in various biological processes, including maintaining the balance of fluids in the body and aiding in nerve function. The symbol "Cl-" represents the chloride ion in chemical equations and formulas.

Explanation
Potassium is represented by the symbol K in the periodic table. The + sign indicates that potassium has a positive charge, which means it has lost one electron. This positive charge is due to the fact that potassium has one more proton than it has electrons. Therefore, K+ represents a potassium ion with a charge of +1.

Explanation
The given correct answer "Na +" represents the symbol for the sodium ion. Sodium is a chemical element with the symbol Na and atomic number 11. It is a highly reactive metal that forms a positive ion (Na+) when it loses one electron. The plus sign indicates the positive charge of the sodium ion, which is formed by losing one electron.

Explanation
Bromide refers to the bromine ion, Br-. The symbol "Br" represents the element bromine, which is a halogen. When bromine gains one electron, it forms a negatively charged ion, Br-. This ion is called bromide. The negative charge indicates that bromide has gained an extra electron, making it an anion. Therefore, the correct answer is Br-.

Explanation
Iodide refers to the negatively charged form of iodine, represented by the symbol I-. It is an ion that has gained one electron, resulting in a net negative charge. This ion is commonly found in compounds such as potassium iodide (KI) and sodium iodide (NaI). Iodide ions play a crucial role in various biological processes, particularly in the synthesis of thyroid hormones. These hormones are essential for the regulation of metabolism and growth in the human body.

Explanation
Acetate is a negatively charged ion with a chemical formula of C2H3O2-. The formula indicates that it consists of two carbon atoms, three hydrogen atoms, and two oxygen atoms. The negative charge is denoted by the - symbol. Acetate is commonly found in various compounds such as acetic acid and its salts. It is used in many industrial and household applications, including as a solvent, preservative, and in the production of plastics and textiles.

Explanation
The correct answer is OH-. Hydroxide (OH-) is a polyatomic ion consisting of one oxygen atom and one hydrogen atom. It carries a negative charge due to the extra electron. Hydroxide ions are commonly found in chemical compounds, such as bases and alkalis. They are responsible for the basic properties of substances and can react with hydrogen ions to form water molecules.

Explanation
Nitrate is represented by the chemical formula NO3-. The - sign indicates that it is a negatively charged ion. Nitrate is a polyatomic ion that consists of one nitrogen atom bonded to three oxygen atoms. This ion is commonly found in fertilizers and is an essential nutrient for plants. It can also be found in water sources and can be converted into harmful forms, such as nitrites, which can be toxic to humans and animals.

Explanation
The correct answer is HCO3 -. The answer refers to the hydrogen carbonate ion, which is also known as bicarbonate. The chemical formula HCO3 - indicates that it consists of one hydrogen atom (H), one carbon atom (C), and three oxygen atoms (O), with a negative charge (-) overall. This ion is commonly found in various chemical reactions and is important in maintaining the pH balance in the human body.

Explanation
The given correct answer is Cu + because "Copper I" refers to the ion with a +1 charge, which is represented by Cu +.

Explanation
The given answer NH4+ is correct. Ammonium (NH4+) is a positively charged polyatomic ion formed by the combination of ammonia (NH3) and a hydrogen ion (H+). It has a tetrahedral shape and is commonly found in ammonium salts. The positive charge on the ammonium ion is due to the donation of a lone pair of electrons from the nitrogen atom to the hydrogen ion.

Explanation
The given answer, CO3 2-, is the correct formula for the carbonate ion. The carbonate ion consists of one carbon atom bonded to three oxygen atoms, and has a charge of 2-. This ion is commonly found in various compounds, such as calcium carbonate (CaCO3) found in limestone and shells. The carbonate ion plays a significant role in many chemical reactions and is important in industries such as pharmaceuticals, construction, and environmental science.

Explanation
The correct answer is O 2- because it represents an oxide ion. The superscript "-2" indicates that the ion has a charge of negative two, which means it has gained two electrons. The symbol "O" represents oxygen, and when it gains two electrons, it forms an oxide ion.

Explanation
The correct answer is S 2- because it represents the sulfide ion. Sulfide is a negatively charged ion that consists of two sulfur atoms bonded together. The 2- charge indicates that the ion has gained two electrons, giving it a total of 18 electrons. Sulfide ions are commonly found in compounds such as hydrogen sulfide (H2S) and sodium sulfide (Na2S).

Explanation
Sulfate (SO4 2-) is a polyatomic ion that consists of one sulfur atom and four oxygen atoms. It carries a charge of -2, indicated by the superscript 2-. The sulfur atom in sulfate has a +6 oxidation state, while each oxygen atom has a -2 oxidation state. Sulfate is commonly found in various compounds and minerals, such as gypsum and Epsom salts. It plays a significant role in chemical reactions and is important in environmental processes, including the sulfur cycle.

Explanation
The given answer "Cu 2+" is the correct answer because it represents the Copper II ion. In this ion, Copper has a charge of +2, which is indicated by the superscript "+". The symbol "Cu" represents the chemical symbol for Copper. Therefore, Cu 2+ accurately denotes the Copper II ion.

Explanation
The given correct answer is Fe 2+. This indicates that the iron (Fe) ion has a positive charge of 2+. In chemical reactions, iron can lose two electrons to form the Fe 2+ ion. This ion is commonly found in compounds and solutions, and it plays a crucial role in various biological processes.

Explanation
Zn 2+ is the correct answer because it represents the zinc ion with a positive charge of 2+. In chemical formulas, the symbol Zn is used to represent zinc, and the superscript 2+ indicates that the zinc ion has lost two electrons and therefore has a positive charge of 2+. This notation is commonly used in chemistry to indicate the charge of ions.

Explanation
Aluminum (Al) is a chemical element that has a 3+ charge, denoted as Al 3+. This means that aluminum has lost three electrons, resulting in a positive charge. The positive charge indicates that aluminum has more protons than electrons, making it an ion. The 3+ charge is a result of aluminum's tendency to lose its three valence electrons in order to achieve a stable electron configuration.

Explanation
The given answer, Fe 3+, represents the ion of iron with a positive charge of 3+. This is indicated by the Roman numeral III after the element symbol Fe, which signifies the oxidation state of the iron ion. The 3+ charge means that the iron ion has lost three electrons, resulting in a positive charge.

Explanation
The correct answer is PO4 3- because it represents the chemical formula for phosphate. Phosphate is an inorganic chemical compound that consists of one phosphorus atom bonded to four oxygen atoms. The 3- charge indicates that it has gained three electrons, giving it a negative charge. This compound is commonly found in biological systems, such as DNA, RNA, and ATP, and plays a crucial role in cellular metabolism and energy transfer.