All medicines consist of matter, as does the human body and all its parts. Physical bodies are things of nature composed of matter such as earth, air, water, plants, and animals. Matter occupies space and is affected by gravitation and motion. Whatever occupies space is matter; whatever does not occupy space cannot be matter. Each particle of matter has impenetrability, meaning it excludes other particles from its own space. The volume of a body is the space occupied by it. All physical bodies in the universe are attracted to each other through gravitation, which operates between all bodies according to their masses and distances. Weight measures the force by which the earth attracts lesser mass towards its center. Whatever has weight or is affected by gravitation is matter; whatever lacks weight cannot be matter. The mass of any body is the actual quantity of matter contained in it, irrespective of space occupied or weight. Density relates the mass to volume of a body. Energy acts upon and through matter causing changes in position, form, condition, and properties. Gravitation is an effect of energy on matter. Energy is indestructible; its quantity remains constant and cannot be added to nor diminished. Matter and energy are inseparable but distinct. Matter is not energy and vice versa. Nearly all kinds of matter may be converted into other kinds by various means without changing mass. Different forms of energy can communicate or transmit from one particle or body of matter to another. Work results from the application of energy leading to changes in position or motion of matter. Potential energy is stored-up energy capable of performing work when released, while kinetic energy is energy in action like a cannon ball fired at high velocity. Energy does not act uniformly on all kinds of matter; different types offer varying resistance and can change forms according to the kind of matter upon which it acts. The wonderful divisibility of matter is exemplified by phenomena such as colored substances imparting color to water or other solvents, odorous substances perfuming air, and minute quantities revealing their presence through chemical tests. Countless kinds of matter exist, classified into elemental and compound matter. Elemental matter cannot be decomposed or produced by combining others; about eighty distinct kinds are known (1904). About three-fourths of the known elements are metals like iron, copper, lead, tin, zinc, nickel, gold, silver, platinum, aluminum, and mercury. About one-fourth are non-metallic elements such as sulfur, carbon, phosphorus, chlorine, bromine, iodine, oxygen, nitrogen, hydrogen, and silicon. All matter consists of indivisible particles called atoms which form molecules when united in groups according to fixed laws. Molecules may consist of one or more atoms of the same kind (elemental) or different kinds (compound). Compound matter can be decomposed into two or more other kinds of matter and composed out of, or produced by combining together, two or more other kinds of matter. Each distinct chemical compound has specific properties like water, common salt, sugar, alum, borax, quartz, lime, washing soda, baking soda, cream of tartar, green vitriol, blue vitriol, flint, chalk, iron rust, alcohol, glycerin, quinine, carbonic acid gas, camphor, ether, chloroform, and oxides, acids, salts. All atoms of any one kind have the same mass and properties; all molecules of any one kind have the same mass, composition, structure, and properties under the same conditions. Atoms and molecules are so minute that they cannot be seen individually by any known means. The relative masses of different kinds of atoms (atomic weights) are known but their absolute weights are unknown. The relative masses of molecules (molecular weights) are sums of masses of their component atoms. Few chemical compounds exist in nature in a pure condition; nearly all pure or unmixed chemical compounds are produced or separated from other substances by man's labor. Innumerable varieties of matter found in nature are generally mixtures of two or more different kinds of chemical compounds in varying proportions such as earths, soils, wood, flesh, bone, oils, fats, milk, cheese, resins, and many others having the appearance of uniform composition but chemically considered, mixtures or mixed substances because they are made up of several kinds of molecules not held together by chemical energy nor combined in definite proportions. A chemically homogeneous substance consists exclusively of individual particles of identical specific properties or of but one distinct kind of matter; all chemically homogeneous substances are also physically homogeneous. Physically homogeneous substances have uniform appearance and whose least discernible particles all have the same composition and properties such as benzine, volatile oils, fixed oils, alloys, solutions, air, the yolk of an egg, wines, numerous other substances which appear to be of perfect sameness throughout their whole mass are nevertheless mixed substances or mixtures of different kinds of matter. The physical properties of matter can be observed without any reference to chemistry but depend primarily upon the composition and structure of molecules; chemical properties directly and exclusively dependent upon conditions within each individual molecule, discoverable only by chemical means such as intensity, quality, quantity of chemical energy actuating component atoms, masses, chemical behavior, relative stability of molecules. No two different kinds of matter have exactly the same properties in every particular under the same conditions.
Key Takeaways
- Understanding matter and energy is crucial for comprehending pharmaceutical science and survival techniques.
- Matter occupies space, is affected by gravitation, and can be divided into elemental and compound forms.
- Energy acts upon matter causing changes in position, form, condition, and properties.
Practical Tips
- Recognize the importance of understanding matter's divisibility for effective chemical analysis and synthesis.
- Use knowledge of energy transformations to optimize resource utilization in survival scenarios.
- Identify elemental versus compound substances based on their behavior under different forms of energy.
Warnings & Risks
- Misidentifying elemental from compound substances can lead to incorrect treatment or preparation methods.
- Ignoring the physical properties of matter can result in ineffective chemical reactions and treatments.
Modern Application
While this chapter focuses on foundational concepts like matter, energy, and their interactions which are still relevant today, modern survival preparedness has advanced with more precise measurements and technologies. However, understanding these basics remains crucial for effective resource management and emergency response.
Frequently Asked Questions
Q: What is the relationship between mass and weight in this chapter?
Mass refers to the actual quantity of matter contained within a body, while weight measures the force by which the earth attracts lesser mass towards its center. Weight varies according to distance from Earth's center whereas mass remains constant.
Q: How does energy relate to changes in matter?
Energy acts upon and through matter causing changes in position, form, condition, and properties of substances. Different forms of energy can change into one another depending on the kind of matter involved.
Q: What distinguishes elemental from compound matter?
Elemental matter cannot be decomposed or produced by combining others; it consists of indivisible particles called atoms. Compound matter, on the other hand, is made up of two or more elements united together in definite proportions.