have same composition throughou mixture, components are indistinguishable
What is homogenous mixture?
100
these change
constantly with amount and therefore cannot be used for identification. Examples of __________________
properties are: mass, volume, length, heat content, etc.
What is extensive?
100
A compound in which valence shell electrons are transferred. Usually a bond between a metal and non metal
What is ionic bond?
100
Amount of space an object takes up
What is volume?
200
Study of what matter is made up of
What is chemistry?
200
do not have the same composition throughout the mixture, components are distinguishable
What is Heterogenous mixture?
200
A _________________ change is a change that involves a change only in the appearance, but not the composition of the substance being studied.
What is physical Change?
200
A bond that does not involve charges. This is usually between a non metal and a non metal
What is covalent bond?
200
The outer electrons of an element. These electrons are responsible to bonding.
What is valence electrons?
300
an alternate way of writing numbers to eliminate unnecessary zeros (usually used with very large or very small numbers)
What is scientific notation?
300
have a fixed composition, cannot be separated by physical methods, properties do not change
What is Pure substance?
300
a _________________change is a change the involves a change both in the appearance (structure) AND the composition of the substance being studied
What is chemical change?
300
Matter that has a uniform and definite composition
What is substance?
300
The ________________in a vacuum is 3.0 x 108 meters per second
What is speed of light?
400
The_______________ is the point on a phase diagram that represents the temperature and pressure at which three phases of a substance can coexist.
What is the triple point ?
400
are used for identification.
Examples of ________________are density, color, melting point, boiling point,
electrical conductivity, specific heat, etc.
What is intensive property?
400
are two or more forms of atoms (or ions) of the same element with different masses;
What is isotope?
400
Property that can be observed and measured
What is physical property?
400
This subshell can only hold up to 6 electrons
What is P subshell?
500
variable composition, may be separated into pure substances by physical methods, components retain their characteristic properties
What is mixture?
500
of matter describe how the substance reacts with something else. Examples of _________________are "How does it react with acids?" "Does it burn?" "Does it react with water? To observe a chemical property, one must actually let a substance react.
What is chemical properties?
500
is a charged particle. The numbers of protons and electrons are not equal