The Great Chemistry Scavenger Hunt

Explanation
Dilute acetic acid is commonly known as vinegar. Vinegar is a liquid that is used in cooking and food preparation, as well as for cleaning and disinfecting. It is made through the fermentation process of ethanol by acetic acid bacteria. Vinegar has a sour taste and a strong odor, and it is commonly used as a condiment or ingredient in various dishes and recipes. It is also used as a cleaning agent due to its acidic properties.

Explanation
2-propanol, also known as isopropyl alcohol, is commonly referred to as rubbing alcohol. It is called rubbing alcohol because it is often used as a disinfectant and antiseptic for cleaning wounds or surfaces. Rubbing alcohol is a clear liquid with a strong smell and is commonly used in healthcare settings and households for its antiseptic properties. It is also used as a solvent in various industries and as a fuel additive. Therefore, the correct answer for the given question is rubbing alcohol.

Explanation
NaHCO3 is the chemical formula for sodium bicarbonate, which is commonly known as baking soda. Baking soda is a white crystalline powder that is commonly used in baking as a leavening agent. It reacts with acidic ingredients, such as vinegar or lemon juice, to produce carbon dioxide gas, which helps dough or batter to rise. Baking soda also has various household uses, such as cleaning, deodorizing, and as a remedy for heartburn or indigestion. Therefore, the correct answer is baking soda.

Explanation
Soda contains carbonic acid, which is a chemical compound formed when carbon dioxide dissolves in water. This compound gives soda its characteristic fizziness and tangy taste. Carbonic acid is a weak acid that can release hydrogen ions, making it slightly acidic. This acidity contributes to the refreshing and thirst-quenching properties of soda.

Explanation
Silicon dioxide is more commonly known as sand and glass because both sand and glass are composed primarily of silicon dioxide. Sand is a naturally occurring form of silicon dioxide, consisting of small particles of crushed rocks and minerals. Glass, on the other hand, is a man-made material that is produced by melting sand and other ingredients together to form a solid material. Both sand and glass have similar properties and characteristics due to the presence of silicon dioxide.

Explanation
A solution with a pH of 7 is water because water has a neutral pH of 7. A pH of 7 indicates that the solution is neither acidic nor basic, but rather it is balanced. Water molecules dissociate into equal numbers of hydrogen ions (H+) and hydroxide ions (OH-), resulting in a neutral pH. Therefore, a solution with a pH of 7 can be identified as water.

Explanation
The correct answer is "salt water" because a solution of NaCl, which is sodium chloride, is commonly referred to as salt water. This is because NaCl is the chemical compound that gives salt its characteristic taste and is commonly used to season and preserve food. Additionally, salt water is also used to refer to the mixture of salt and water found in oceans and seas.

Explanation
Sucrose is a type of chemical compound that is widely recognized as sugar or table sugar. It is a common sweetener used in various culinary applications and is derived from plants, particularly sugarcane and sugar beets. Sucrose is composed of glucose and fructose molecules bonded together, making it a disaccharide. Its sweet taste and ability to enhance flavors make it a popular ingredient in many food and beverage products. Therefore, the given answer of "sugar, table sugar" accurately describes the chemical sucrose.

Explanation
Rust is a product of oxidation because it is formed when iron or steel reacts with oxygen in the presence of moisture. This reaction leads to the formation of iron oxide, commonly known as rust. The process of oxidation involves the transfer of electrons from the iron to the oxygen, resulting in the formation of the rust.

Explanation
Copper is the correct answer because it has 29 electrons. The atomic number of copper is 29, which indicates the number of protons and electrons in an atom of copper. Since atoms are electrically neutral, the number of electrons is equal to the number of protons. Therefore, an element with 29 electrons is copper.

Explanation
Water is a substance that contains only elements 1 and 8, which refers to hydrogen (H) and oxygen (O) respectively. The chemical formula for water is H2O, meaning it consists of two hydrogen atoms bonded to one oxygen atom. Therefore, water is the correct answer for a substance containing only elements 1 and 8.

Explanation
Aluminum is the element that contains 13 protons. The atomic number of an element represents the number of protons in its nucleus. Since aluminum has 13 protons, it is identified by the atomic number 13. This metal is commonly used in various industries due to its low density, high strength, and corrosion resistance.

Explanation
Element 74 refers to the chemical element Tungsten, which is commonly used in the filament of a light bulb. Therefore, it can be inferred that the item being referred to in the question is a light bulb.

Explanation
Bananas are a food item that contains a high amount of potassium, which has 19 electrons. Potassium is an essential mineral that plays a vital role in maintaining proper muscle and nerve function, as well as regulating blood pressure. Therefore, bananas are a good source of potassium and can contribute to a healthy diet.

Explanation
Milk is a food item that contains a high amount of calcium, which has 20 protons. Calcium is an essential mineral for the human body, particularly for the development and maintenance of strong bones and teeth. Milk is a common source of calcium in the diet and is often recommended for its high calcium content. Therefore, milk is a food item that fits the description of having a high amount of an element with 20 protons.

Explanation
Iodine can be used as a starch indicator because it reacts with starch to form a dark blue or black color. This reaction occurs due to the formation of an inclusion complex between iodine molecules and the helical structure of amylose, a component of starch. The color change is a result of the absorption of light by the complex. Therefore, when iodine is added to a solution containing starch, the presence of starch can be detected by the formation of a blue or black color.

Explanation
Sugar is a substance made up of the elements carbon (1), oxygen (6), and hydrogen (8). The chemical formula for sugar is C6H12O6, which indicates the presence of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms. Therefore, sugar fits the description of a substance made of elements 1, 6, and 8.

Explanation
Mercury is a dangerous substance that is named after the planet Mercury. It is a heavy metal that is highly toxic and can cause serious health issues if ingested or inhaled. Mercury is commonly found in various forms such as liquid, vapor, and as a component in certain products. Its toxicity makes it important to handle and dispose of mercury-containing items properly to avoid contamination and harm to humans and the environment.

Explanation
The correct answer is gold because "aurum" is the Latin word for gold.

Explanation
The correct answer is "paint, paints". The word "paint" refers to a single unit or type of substance, while "paints" is the plural form of "paint" and refers to multiple units or types of substances. Lead used to be commonly used in both paint and paints, indicating that it was present in various forms or varieties of paint.

Explanation
Steel is a strong substance made of iron and carbon, with iron being the element number 26 on the periodic table. Carbon, although not mentioned in the question, is commonly present in steel to enhance its strength and other properties. Steel is widely used in construction, manufacturing, and various other industries due to its durability, versatility, and ability to withstand high temperatures.

Explanation
Uranium-238 is the correct answer because it has a half-life of 4.5 billion years. This means that after 4.5 billion years, half of the uranium-238 sample will have decayed into other elements. The long half-life of uranium-238 makes it useful for dating rocks and determining the age of the Earth, as it allows for the measurement of very old geological events.

Explanation
Carbon dioxide (CO2) is a substance used by plants that contains elements 6 and 8. The number 6 refers to the atomic number of carbon, while the number 8 refers to the atomic number of oxygen. Carbon dioxide is a vital component in the process of photosynthesis, where plants convert sunlight into energy. During this process, plants take in carbon dioxide from the atmosphere and release oxygen as a byproduct. Therefore, carbon dioxide fits the description of a substance used by plants containing elements 6 and 8.

Explanation
Silver is commonly used by the Kodak company because it is an essential component in the production of photographic films. Silver halides, such as silver bromide and silver iodide, are used to capture and develop the images in traditional film photography. These silver compounds are sensitive to light and react to create the image when exposed to it. Therefore, silver plays a crucial role in the production of high-quality photographs and is a key element utilized by the Kodak company.

Explanation
Sulfur is the correct answer because it is known for its distinct smell that resembles rotten eggs. When sulfur compounds are broken down, they release hydrogen sulfide gas, which has a strong odor similar to that of rotten eggs. This smell is commonly associated with sulfur and is often used as a way to identify the presence of sulfur or sulfur-containing compounds.