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CHEM S1 STACK
Chemistry semester 1 review
Question | Answer |
---|---|
2 categories used to classify properties of matter | extensive or intensive |
what is an intensive property? | property that depends on the type of matter in the sample, not the amount. |
what is an extensive property? | property that depends on the amount of matter in a sample, not the type. |
what is volume? | the volume of an object is the measure of space occupied by that object. |
what is mass? | the mass of an object is the measure of the amount of matter the object contains. |
define substance? | matter that has a uniform and definite composition. |
what are the 3 states of matter? | solid, liquid and gas. |
define solid? | definite shape, definite volume, not easily compressed. |
define liquid? | indefinite shape, definite volume, not easily compressed. |
define gas? | indefinite shape, indefinite volume, easily compressed |
what is a mixture? | a mixture is a physical blend of two or more components |
what is a heterogeneous mixture? | a mixture in which the composition is not uniform throughout |
what is a homogeneous mixture? | a mixture in which the composition is uniform throughout |
what is another word for homogeneous mixture? | solution |
what is an element? | the simplest form of matter that has a unique set of properties |
what is the atomic radius? | one half the distance between the nuclei of two atoms of the same element when the atoms are joined |
define cation? | an ion with a positive charge |
define anion? | an ion with a negative charge |
what is ionization energy? | the energy required to remove an electron from an atom |
define coordination number | the number of opposite charged ions that surround an ion in a crystal |