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64 Cards in this Set
- Front
- Back
Matter |
Anything that occupies space and has mass |
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Kinetic-molecular Model of matter |
Tiny particles in random constant motion make up matter |
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Atom |
The basic particle that makes up all matter |
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Proton, neutron, nucleus, Electron |
The four parts of the atom |
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Positive |
Protons are |
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Neutral(no charge) |
Neutrons are |
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Negative |
Electrons are |
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Electrons |
Which part of the atom takes up space |
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Molecule |
A distinct particle formed when two or more atoms bond together or become separate |
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Ions |
Particles with either more or fewer electrons than protons are |
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Anion |
Particles with more electrons than protons |
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Cation |
Atoms with fewer electrons than protons |
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Neutral |
The ideal atom is |
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Subatomic |
Any particle smaller than an atom |
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Brownian Motion |
Movement of bits of matter in liquid and gasses |
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Pure substances |
Materials made of only one kind of substance |
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Element |
Simplest kind of pure substance made of only one atom |
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Compound |
Contains more than one atom, chemically bonded together |
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Lattice |
Masses of ions arranged in a geometric pattern |
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Organic Compound |
Always contain the element carbon |
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Mixture |
Mixing of two or more substances |
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Homogeneous mixtures |
A mix of Particles of roughly the same size and even mix |
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Solutions |
Homogeneous mixtures of gas or liquid are called |
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Heterogenous Mixture |
Mixtures that are not uniform |
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Physical property |
Anything about a substance that we can observe or measure without changing its chemical composition |
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Physical change |
Any change in the arrangement of matter in a substance |
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Nuclear change |
Occurs when the nucleus split into smaller nuclei |
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Chemical changes |
Occurs when atoms of different substances break apart and combine in new ways |
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Law of the conservation of matter |
Matter can neither be created or destroyed but only changed from one form to another |
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Change of state |
When matter changes from one form to another it is called |
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Thermal Energy |
Related to the microscopic vibrations and motions of particles in matter |
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Hot |
When more thermal energy is present an object is |
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Cooling |
A loss of thermal energy is |
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Melting |
When there is an addition of thermal energy so that the attraction between the particles cannot hold together anymore |
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Freezing |
When the liquid cools making the attraction between the particles strong enough to hold the item in a fixed spot |
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Evaporation |
Happens at any temperature between boiling and melting and only at the surface |
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Sublimation |
Happens between the solid and vapor phase at temperatures below the melting point and at the surface |
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Condensation |
Occurs when a vapor cools and changes into the liquid state |
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Deposition |
Occurs when the rate of vapor molecules exceed the number sublimating away |
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Solid |
Objects that have definite volume definite shape are dense have low compressibility Vibrate in fixed positions have a repeating structure or are fixed but random |
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Liquid |
Has definite volume but is not rigid |
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Gas |
Has no definite volume and is highly conpressible |
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Kinetic-molecular model |
The most workable model for matter |
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Plasma Gas Liquid Solid |
Four states of matter |
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Melting |
Phase change: Solid——> Liquid |
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Mass and volume |
Matter has what two characteristics |
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False |
T/F Molecules always have the same size and shape |
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Three |
Water can exist in how many states |
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Both |
Kevlar’s strength is chemical or physical |
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Gas |
Which state of matter is the fastest |
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True |
Table salt is a pure substance |
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Diffusion |
The gradual spreading of a substance through matter |
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Gold, sodium, chlorine |
Three examples of elements |
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Nucleus |
Which part of an atom takes up the most mass |
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Tap Water, Air |
Two examples of homogenous mixtures |
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Granite, gravel |
Two examples of heterogeneous mixtures |
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Electron field |
Which part of an atom takes the most space |
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Lemon aid, blood, cake |
Examples of mixtures |
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Light, microwave |
Examples of non-matter |
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Nanometer |
We measure particles in what meter |
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H2O |
Give an example of a molecule |
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Naming the animals |
How did Adam express classification |
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Element Compound |
Two types of pure substances |
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Heterogenous Homogenous |
Two types of mixtures |