Honors Chemistry Chapter 2 Guaranteed Success - Matter:
Anything that has mass and takes up space. - Atoms:
- The building blocks of matter.
- The simplest part of an element. - Element:
- Each one is made of the same kind of atom.
- Cannot be broken down any further by che...
✅ - Cannot be broken down any further by chemical means.
- Currently there are ___ elements:
✅ 115.
- Chemical Symbol:
✅ - 1 or 2 letters.
✅ - First letter always capitalized, the second never; chemical "shorthand."
✅ - Most are derived from either Latin or Greek.
✅ - Some are named after famous scientists.
✅ - Even countries, states, and planets can show up as the names of elements.
- Compound:
✅ - Made of two or more different kinds of elements chemically combined.
✅ - Can be broken down into more elemental particles.
✅ - When broken down, the pieces have completely different properties than the original.
, - Chemical Formula:
✅ - A shorthand method used to show the number and type of atoms present in a compound.
- Subscript:
✅ - Represents the number of atoms.
- How many hydrogen atoms are in water?:
✅ 2.
- What are the two different things matter can be classified as?:
✅ 1.) Substance
✅ 2.) Mixture
- Substance:
✅ A type of matter that has uniform (all the same) and has a definite composition.
- Two types of substances:
✅ 1.) Elements
✅ 2.) Compounds
- Mixture:
✅ - Made up of two or more substances that are not chemically combined.
✅ - Has a variable composition.
- Heterogeneous:
✅ Mixture is not uniform in composition (contains visibly different parts).
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