unit 10 quiz Flashcards
whats a combination reaction
when two or more substances combine to form one new substance
what is a decomposition reaction
a single compound breaks down into two or more simpler products
whats a single replacement reaction
one element replaces a second element in a compound
when do single replacements occur (only when…)
occur only if the outside element is more reactive than the element in the compound
what exchange to we have to worry about in single replacement reactions
between two metals or two halogens
what is the activity series and what is its use
it lists metals in order of decreasing activity. its used to predict if a single replacement reaction will occur
what is a double replacement reaction
when positive ions are exchanged between two compounds
in a double replacement reaction, if one thing is a solid, the other one is ___
aqueous
whats a combustion reaction
when an element or a compound reacts with oxygen, producing carbon dioxide and oxygen.
what are the diatomics
Hydrogen, chlorine, flourine, oxygen, nitrogen, bromine, mercury (have no fear of ice cold beer)
which of the diatomics are liquid
mercury and bromine
are ionic compounds aqueous, gas, solid, or liquid
solid, unless dissolved in water, making them aqueous
is NH3 aqueous, gas, solid, or liquid
gas
