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Chapter 22: Problem 19

Give an example of a carbide and a cyanide.

Short Answer

Expert verified
An example of a carbide is Calcium Carbide (CaC2) and an example of a cyanide is Sodium Cyanide (NaCN).

Step by step solution

01

Identifying a Carbide

A carbide is a compound composed of carbon and a less electronegative element. For this exercise, the carbide will be Calcium Carbide (CaC2). Calcium Carbide is the combination of calcium and carbon atoms. The chemical formula signifies that one molecule of calcium carbide is made up of one calcium ion (Ca) and two carbon ions (C2).
02

Identifying a Cyanide

A cyanide is a compound that contains a carbon atom triple-bonded to a nitrogen atom. For this exercise, the cyanide will be Sodium Cyanide (NaCN). Sodium Cyanide is formed by the combination of a sodium ion (Na) and a cyanide ion (CN). The cyanide ion is composed of a carbon (C) and nitrogen (N) atom triple-bonded together.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Understanding Carbides
Carbides are fascinating chemical compounds characterized by the presence of carbon atoms combined with a less electronegative element, often a metal. For instance, calcium carbide (CaC鈧�) is a well-known carbide formed by combining calcium ions with carbon ions. The result is a solid material often used in industrial applications. This carbide, when reacted with water, releases acetylene gas鈥攁 critical component used in welding and metal cutting. Key features of carbides include:
  • Carbides are usually hard and have high melting points.
  • They provide durability, making them suitable for tools and abrasives.
  • They can form ionic, covalent, or metallic bonds depending on the other element involved.
This diversity in bonding allows carbides to be used in various industries, emphasizing their versatility.
Exploring Cyanides
Cyanides are chemical compounds that involve a carbon atom triple-bonded to a nitrogen atom, resulting in a distinct functional group called the cyanide ion (CN鈦�). Sodium cyanide (NaCN) is a typical example, featuring prominently in mining to extract gold and silver through leaching processes. Despite their utility, cyanides are notoriously recognized for their toxicity, since the triply bonded cyanide ion can interfere with essential respiratory enzymes in bio-organisms. Key points about cyanides:
  • Cyanides can be found in both natural and synthetic forms.
  • Due to their volatility and toxicity, their handling requires strict safety precautions.
  • They have applications in electroplating, metal cleaning, and fumigation.
Understanding the risks and chemistry of cyanides is crucial for utilizing these compounds safely and effectively.
Chemical Compounds in Everyday Life
Chemical compounds consist of atoms combined in fixed ratios and structures, giving rise to unique properties and functions. Carbides and cyanides are two examples of these compounds, each with their own specific uses and characteristics. The study of chemical compounds is vital because:
  • Compounds define much of the material world around us, from the air we breathe to the objects we use daily.
  • Understanding compounds allows us to manipulate and synthesize new materials beneficial to technology, medicine, and industry.
  • The properties of chemical compounds, such as boiling points, solubility, and reactivity, guide their practical applications.
Grasping these concepts allows scientists and industries to innovate and improve life by creating compound-based solutions for real-world problems.

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