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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1:34 minutes

Problem 31a

Textbook Question

Write the abbreviation for each of the following units:
a. milligram

Verified step by step guidance

Understand that the prefix 'milli-' in the metric system represents 10^-3 or 1/1000 of the base unit.

The base unit for mass in the metric system is the gram, abbreviated as 'g'.

Combine the prefix 'milli-' with the base unit 'gram' to form the unit 'milligram'.

The abbreviation for 'milligram' is formed by taking the first letter of the prefix 'milli-' (m) and the abbreviation for 'gram' (g).

Thus, the abbreviation for milligram is 'mg'.

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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 mass, units such as grams, kilograms, and milligrams are commonly used. Understanding these units is essential for accurately measuring and converting quantities in scientific and everyday contexts.

Abbreviation

An abbreviation is a shortened form of a word or phrase. In scientific contexts, abbreviations are often used for convenience and clarity. For example, 'milligram' is abbreviated as 'mg', which allows for easier communication of measurements in writing and data presentation.

Metric System

The metric system is an international decimalized system of measurement based on powers of ten. It includes units such as meters for length, liters for volume, and grams for mass. Familiarity with the metric system is crucial for understanding and converting between different units, such as milligrams and grams.