CH01 MSJ jlm - Chapter 1 Chapter The Nature of Chemistry...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
1 The Nature of Chemistry The Nature of Chemistry Chapter 1 Chapter 1 Robert Boyle 1627-1691. Originally defined the concept of chemical “element.” Geber (Abu Musa Jabir ibn Hayyan, نایح ±ب² رباج ( .815-721 “Father of Arabic chemistry.”
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 The Study of Chemistry The Study of Chemistry The The Atomic Atomic and and Molecular Molecular Perspective of Perspective of Chemistry Chemistry • Matter is the physical material of the universe. • Matter is made up of relatively few (ca. 100) elements . • Elements are the building blocks of matter. • On the nano (ultramicroscopic) level, matter consists of atoms. An atom is a “nano-basketball” -- nano = 10 -9 . • Atoms usually are found in the combined state, commonly molecules. • Molecules may consist of the same type of atoms or different types of atoms.
Background image of page 2
3 CAUTION!! Not all compounds are made up of molecules. Many compounds, for example, are composed of ionic lattices. For this chapter, however, we will confine discussions of compounds to the concept of molecules, which are the combinations of nonmetallic elements.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 The Study of Chemistry The Study of Chemistry The Molecular Perspective of Chemistry The Molecular Perspective of Chemistry In these models, red represents oxygen, white represents hydrogen, and gray represents carbon.
Background image of page 4
5 Classification of Matter Classification of Matter Pure Pure Substances Substances and and Mixtures Mixtures A pure substance cannot be separated into simpler substances by physical means. A pure substance has definite and constant chemical and physical properties (i.e., ignition temp., melting point, magnetic susceptibility, spectral patterns) A pure element is a pure substance that consists only of one kind of atom. Examples of elements: U, P 4 , Cl 2 , C 60 A pure compound is a pure substance that consists of more than one kind of atom. Examples of compounds: HCl, K 2 SO 4 , C 2 H 6 O.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Molecules are chemical combinations of two or more atoms which can all be the same , e.g., Br 2 , H 2 , S 8 , O 3 (these are elements) or different , e.g., H 2 O, C 2 H 5 Br (these are compounds) (Elements which have a different number of atoms in their molecule are called allotropes. Allotropes have different physical and chemical
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 30

CH01 MSJ jlm - Chapter 1 Chapter The Nature of Chemistry...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online