Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
element
|
simplest type of matter; consists if one type of atom, therefore cannot be broken down by any chemical or physical means
|
|
Molecule
|
An independent structure of 2 or more atoms bound together
|
|
Compound
|
Two or more different elements that are bonded chemically
|
|
Mixture
|
consists of two or more substances (elements and/or compounds) that are physically intermingled
|
|
law of mass conservation
|
The total mass of substances does not change during a chemical reaction
|
|
Law of definite or constant composition
|
No matter what its source, a particular compound is composed of the same elements in the same parts (fractions) by mass
|
|
Mass fraction
|
mass of each element÷mass of the compound
|
|
Percent by mass or mass %
|
fraction by mass×100
|
|
Percent yield
|
[Actual yield ÷ theoretical yield] × 100
|