{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter 1 - Chapter 1 Introduction Matter and Measurement...

Info icon This preview shows pages 1–15. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1 Introduction: Matter and Measurement
Image of page 1

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

View Full Document Right Arrow Icon
Chemistry is the study of matter and the changes it undergoes Matter is anything that occupies space and has mass. A pure substance is a form of matter that has a definite composition and distinct properties. Examples: water, ammonia, sucrose, gold, oxygen
Image of page 2
Matter: Anything that has mass and takes up space.
Image of page 3

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

View Full Document Right Arrow Icon
Matter Atoms are the building blocks of matter. Each element is made of the same kind of atom. A compound is made of two or more different kinds of elements. ( Law of Constant Composition or Definite Proportions )
Image of page 4
States of Matter ( vapor)
Image of page 5

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

View Full Document Right Arrow Icon
Fixed shape and volume No fixed shape; fixed volume No fixed shape or volume
Image of page 6
An Element An element is a substance that cannot be separated into simpler substances by chemical means. 118 elements have been identified 90 elements occur naturally on Earth gold, aluminum, lead, oxygen, carbon 28 new elements have been created by scientists Technetium (#43), Promethium (#61); Neptunium (#93) Plutonium (#94) etc
Image of page 7

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

View Full Document Right Arrow Icon
Chemical symbols with one letter have that letter capitalized (e.g., H, B, C, N, etc.) Chemical symbols with two letters have only the first letter capitalized (e.g., He, Be).
Image of page 8
A Compound A compound is a substance composed of atoms of two or more elements chemically united in fixed proportions. Law of Constant Composition (or Law of Definite Proportions): The composition of a pure compound is always the same. Water – H 2 O Ammonia – NH 3 Glucose – C 6 H 12 O 6 Compounds can only be separated into their pure components (elements) by chemical means .
Image of page 9

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

View Full Document Right Arrow Icon
A mixture is a combination of two or more substances in which the substances retain their distinct identities. 1. Homogenous mixture – composition of the mixture is the same throughout. 1. Heterogeneous mixture – composition is not uniform throughout. soft drink, milk, solder cement, iron filings in sand
Image of page 10
Chemical Symbols of the Common Elements A more detailed look!
Image of page 11

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

View Full Document Right Arrow Icon
Nine Non-Metals that have Symbols Consisting of a Single Letter H H ydrogen Most of the universe is hydrogen! B B oron C C arbon Important in biology N N itrogen Makes up 78% of the atmosphere O O xygen Makes up 21% of the atmosphere and 46% of the earth’s crust F F luorine P P hosphorus S S ulfur I I odine
Image of page 12
Symbols Derived from the First Two Letters of the English Name Al Al uminum Ar Ar gon Li Li thium Ca Ca lcium He He lium Si Si licon Makes up ~25% of the earth’s crust Ba Ba rium Br Br omine
Image of page 13

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

View Full Document Right Arrow Icon
Symbols Derived from the First and Some Later Letter of the English Name Mg M a g n esium (1 st & 3
Image of page 14
Image of page 15
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern