Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

1. Matter and Measurements

Metric Prefixes

GOB Chemistry

1. Matter and Measurements

Metric Prefixes

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2:07 minutes

Problem 31c

Textbook Question

Write the abbreviation for each of the following units:
c. kilometer

Verified step by step guidance

Step 1: Understand the concept of unit abbreviations. Units of measurement often have standardized abbreviations to simplify their representation. For example, 'meter' is abbreviated as 'm'.

Step 2: Recall that the prefix 'kilo-' represents a factor of 10³ (or 1000). This prefix is commonly used in the metric system to denote larger quantities.

Step 3: Combine the prefix 'kilo-' with the base unit 'meter'. The abbreviation for 'meter' is 'm', and the prefix 'kilo-' is abbreviated as 'k'.

Step 4: Write the abbreviation for 'kilometer' by combining the prefix and the base unit. The result is 'km'.

Step 5: Confirm that 'km' is the correct abbreviation for 'kilometer' by referencing standard metric system conventions.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Unit of Measurement

A unit of measurement is a standard quantity used to express a physical quantity. In the context of distance, units like kilometers, meters, and miles provide a way to quantify how far apart two points are. Understanding these units is essential for converting and comparing distances in various contexts.

Abbreviation

An abbreviation is a shortened form of a word or phrase. In scientific and technical contexts, abbreviations are commonly used to simplify communication. For example, 'kilometer' is abbreviated as 'km', which allows for easier writing and reading in documents and discussions related to distance.

Metric System

The metric system is an international decimalized system of measurement based on the meter, liter, and gram as units of length, volume, and mass, respectively. It is widely used around the world for scientific and everyday measurements. The kilometer, as a unit of length in the metric system, is equal to 1,000 meters, making it a fundamental concept in understanding distances.