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1B Elements, Compounds, Mixtures, Atoms, and Molecules
Use these flashcards to review the terms from our unit and prepare for your upcoming quiz!
Terms in this set (20)
The smallest piece of matter
A group of atoms that are chemically bonded. Atoms can be the same or different.
1 unit, can mean an atom or a molecule.
Consists of only ONE type of atom.
An element that occurs naturally as a molecule of 2 atoms.
Consists of 2 or more different types of atoms bonded.
More than one type of particle present. Uses the "&" sign.
Only 1 type of particle is present (either an element or a compound)
The small number to the bottom right of an element symbol.
Remember: If there is no subscript, it is equal to 1 atom.
Number of particles. The number in FRONT of the chemical formula.
Remember: If no coefficient, there is one particle.
They are either a capital letter OR a capital letter followed by a lowercase letter
A combination of symbols and subscripts that indicates the number and types of elements in a compound.
Describe the phase
(l) = liquid
Particles dissolved in water.
Physical blend of 2 or more substances that DO NOT have a consistent composition.
-Looks different throughout. (Example: salad, blood, or chex mix)
A mixture of 2 or more substances that has a constant composition.
-Looks the same throughout
(Example: salt water, milk)
A homogeneous mixture composed of only 1 phase.
A substance dissolved into another substance.
-Present in smaller amounts.
Substance that does the dissolving.
-Present in greater amounts
2, there are two capital letters.
Bonus: How many elements are present in HF?
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