Shared Flashcard Set

Details

Chemistry Review
This review will help with Ms. P's chemistry test on Tuesday.
33
Science
8th Grade
10/22/2015

Additional Science Flashcards

 


 

Cards

Term
Atom
Definition
The smallest particle in the universe
Term
Element
Definition
A pure substance made up of one type of atom
Term
Neutron
Definition
Sub-atomic particle located in the nucleus with no charge
Term
Electron
Definition
Sub-atomic particle located outside the nucleus with a negative charge
Term
Proton
Definition
Sub-atomic particle located in the nucleus with a positive charge
Term
Valence electrons
Definition
Electrons on the outermost shell that bond with other atoms
Term
Mixture
Definition
When elements or compounds are combined physically
Term
Heterogeneous Mixture
Definition
When parts of a mixture can be pulled out of a substance Ex. pizza
Term
Homogeneous mixture
Definition
When particles are completely mixed into a substance, cannot be separated. Ex. sweet tea
Term
Density
Definition
Physical property that can be found by dividing mass/volume
Term
Density
Definition
Physical property that can be found by dividing mass/volume
Term
Reactivity
Definition
Chemical property that describes how likely an element is to react violently to another element
Term
Toxicity
Definition
Chemical property explaining how poisonous the element is
Term
Flammabililty
Definition
Chemical property describing how likely an element is to catch fire
Term
Products
Definition
On the right side of a chemical equation; after a chemical reaction
Term
Reactants
Definition
On the left side of a chemical equation; before a chemical reaction
Term
Coefficient
Definition
Number in front of an element or compound in a chemical equation Ex. 6NaCl
Term
Subscript
Definition
Number located below an element saying how many atoms the element has
Term
Compound
Definition
When two or more elements combine
Term
Law of Conservation of Mass
Definition
Matter cannot be created or destroyed
Term
Periodic Table
Definition
Elements are organized by atomic number and similar properties
Term
Non-metals
Definition
Group on the Periodic Table that are poor conductors, less reactive than other groups
Term
Metals
Definition
Largest group on Periodic Table that are great conductors; most reactive group
Term
Metalloid
Definition
Group on Periodic Table that share properties with metals & non-metals
Term
Families
Definition
Divide elements on Periodic Table based on similar physical and chemical properties
Term
Endothermic Reaction
Definition
Chemical reaction where heat is absorbed
Term
Exothermic Reaction
Definition
Chemical reaction where heat is released
Term
Physical property
Definition
Property that describes a substance without changing its identity
Term
Physical change
Definition
A change that occurs where the substance remains the same, but in a different state
Ex. liquid water - ice - steam
Term
Chemical property
Definition
Properties only observed during a chemical change
Term
Chemical Change
Definition
Change where a substance becomes a different substance. Cannot be reversed.
Term
Ionic bonding
Definition
Where valence electrons are shared between a metal & a non-metal
Term
Covalent bonding
Definition
Where valence electrons are shared between non-metals
Supporting users have an ad free experience!