Matter: PART 1 Flashcards
Chemistry
The study of matter, it’s composition and its interactions.
Matter
Everything, anything with mass (amount of matter) and volume (space it takes up)
Atom
Smallest unit of matter, cannot be broken down.
Element
A type of atom, a pure substance that cannot be broken down
- Symbols are either 1 capital letter or 1 capital and a lowercase letter
Chemical Bond
The link between two atoms, holding them together.
Substance
Something you cannot break into simpler parts using physical changes
- Molecules and compounds
Molecule
A combination of two or more atoms
Compound
Two or more elements chemically combined
- Elements are in specific amounts as seen in their chemical formula (ex. H20)
- Can only be broken down with chemical reactions
Mixture
Two or more substances physically combined in any amounts
- They do not change chemically
- Heterogeneous and Homogeneous mixtures
Heterogeneous Mixture
Two or more substances that aren’t evenly mixed, you can see different parts
Homogeneous Mixture
Two or more substances that are evenly mixed, you cannot see different parts, a solution.
Solution
A Homogeneous mixture
Solute
Substance that gets dissolved
Solvent
Substance that does the dissolving
*universal solvent is water