chemistry Flashcards
proton charge
+1
neutron charge
0
electron charge
-1
atoms have no …
overall electrical charge
lime cycle
calcium carbonate [limewater] caco3 – add heat – calcium oxide [ quicklime] cao — add water— calcium hydroxide [slackedlime] ca[oh]2 — dissolve in water— calcium hydroxide solution [lime water] ca[oh]2— bubble dioxide into lime water—- calcuim carbonate [ lime water ] caco3
nitric acid
nitrate
sulphuric acid
sulfate
hydrochloric acid
chloride
carbonate
co3
nitric acid
hno3
sulphuric acid
h2so4
hydrochloric acid
hcl
ore
a rock containing enough metal to make it worth while digging up
metals less reactive than carbon can be …
extracted by using carbon
a shape memory alloy is ….
a metal that can be bent but when heated it goes back to its original shape.
process of fractional distillation
- crude oil it heated to make vapour. 2. vapour rises p the column. 3. the column is hot tag the bottom and cooler at the top. 4. hydrocarbons condense at different points depending on their boiling points. 5. This separates them into different oils.
emulsion
two things that when are added together do not mix
emulsifier
substances that stabilise emulsions, stop them separating out.
SAS
saturated –alkane — single
DUE
double – unsaturated — alkene
my evil pet bruno
methane – ethane– propane– butane
alkene
Cn H2n
alkane
CnH2n+2
cracking
split large hydrocarbon molecules up into smaller molecules by heating them and passing the gas over a catalyst.
