chemistry Flashcards
the oppsite of a decomposition reaction is?
synthasys
what’s dose the aarow in a chemical equation mean
that a change is taking place
state the 2 elements that are liquide at room temp
mercury and bromine
what is nutrel atoms or ions
atoms
describe the bonding ablity of the elements in the far right hand colom
noble gasses don’t usually bond
when none mental atoms they what to becom what
gaine E to becom anions
what is a covelnt compound
covelnt is non metals they share valence electrons ends in ide
what is an ionic bonds
metal + none metal
valence electrons are shared
ends in ide
what is a metallic compound
valence electrons scatter and délocalise
ends in ide
what is the law of conservation of mass
of product atoms = #of reactient atoms
what’s the difrwnxe between a. lewis dot digagram and a bore rutherford
bord rutherford has all the election shells lewis dot just has the valence shells
what is a double displacement reaction
XY+WZ= XZ+WY
what is acid base nutrilizion reaction
an acid and base comw together to form water and salt
what’s is a synthasisy reaction
A+B=AB
what’s the difrwnxe between compleate and incomplete combustion
compleate = enugh oxogyn
icompleate=not enugh
incomplete causes carbon monoxide (sut) to be released beacuse it didn’t burn
what are the products of combustion
CO^2 H^2O in compleate when incomplete also CO (sut)
what do you need for combustion
a hydrocarbon and oxogyn
acid + base
salt + water
when you react a acid and a base what’s the reaction called
nutrulization
what dose PH stand for
power of hydrogen
what’s the PH of a nutrel substance
7
> 7 is
a base
<7 is
more acidic
another word for basic is
alkaline
