Flashcards in Classification Matter Deck (11)
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1
What is an element???
A substance in which cannot be separated into simpler substances as a result of any chemical change.
If broken down further it will not have the same properties.
Different elements are classified based on different physical properties.
2
Atoms
Molecule
Ions
???
ATOMS: smallest particle of an element that still retains the chemical identity of the element.made up of protons, electrons, neutrons.
MOLECULE: a cluster of two or more atoms held together with a covalent bond.
IONS: an atom or a group of atoms that has gained or lost electrons to become positive or negative charged.
3
What is a particle and a phase???
Particle: a General way to say a small bit of matter such as a atom, molecule, or an ion.
Phase: any part of a system which is uniform in both composition and properties.
4
What are the properties of matter???
Elements,
Compounds,
Mixtures.
5
What is a pure substance???
A substance that has an unchangeable composition.
6
What is a compound???
A combination of elements that has a different set of properties than the elements it’s composed of.
NaCl
7
What is a mixture???
A combination of two or more substances.
There are two types heterogenous and homogenous.
8
What is heterogenous
Mixture with a varying composition, and more than one phase present. (Salt and pepper, trail mix, macaroni salad)
9
What is homogenous???
Mixture with uniform composition throughout, only one phase present.
(Boiling point, density, etc....)
10
What is a solution???
A example of a homogenous mixture, but not at solutions are solid dissolved in a liquid. Mostly the ones we have talked about are!
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