chemistry definitions unit one Flashcards
what is plasma
defintion: super heated gas.
what is the definition of gas?
definition: the least dense state of matter.
what is the definition of liquid.
definition: less dense, has a fixed volume
what is the definition of solid?
definition: does not change to fit the container that its on, fixed volume, most dense,
what is the definition of density?
definition: density is the amount of stuff in a space.
what is the definition of a molecule?
definition: a molecule is two or more atoms bound together.
what is a atom?
definition: an atom is the smallest complete unit of matter.
what is the definition of volume?
definition: volume is the amount of space it takes up.
what is the definition of mass
definition: mass is the amount of stuff in something.
electron
smallest piece of an atom has a negative charge
proton
positive charge piece that determines what the element is
neutron
neutral piece of an atom that prevents the protons from spreading out
ionic bond
is when atoms give up or take electrons
covalent bond
a bond that forms when atoms share pairs of electrons
mole
a conversion unit from atoms to grams or grams to atoms
chemical equation
the written form of a chemical reaction
chemical reaction
when two or more substances combine together or change form
element
any substance thats made up of only one type of atom/ any atom with a specific identity
compound
any substance made up of one element
coefficiant
is the number that tells us how many moles we have in a chemical balance
acid
any substance that gives up protons in a liquid
base
any substance that recives protons in a liquid
neutralize
to remove the potential of doing damage
ph scale
how we measure how strong an acid or a base is
