Chemistry Flashcards
metal + oxygen
= metal oxide
nitrogen + oxygen
= nitrous oxide
diatomic elements
Have no fear of ice cold beer
have
hydrogen H2
No
Nitrogen N2
Fear
Fluorine F2
Of
Oxygen O2
Ice
Iodine I2
Cold
Chlorine Cl2
Beer
Bromine Br2
sodium + oxygen = sodium oxide
Na + O = NaO
hydrogen + bromine = hydrogen bromide
H + Br = HBr
Sodium + chlorine = sodium chloride
Na + Cl = NaCl
sodium + oxygen = sodium oxide
Na + O2 = NaO
hydrogen + bromine= hydrogen bromide
H2 + Br2 = HBr
sodium + chlorine = sodium chloride
Na + Cl2 = NaCl
What is the rule of conservation of mass?
During reaction, number of atoms of each element remains the same. No atoms are gained or lost during a reaction; the atoms are simply rearranged.
how to write 2 molecules of o2
2o2
metal + acid
makes salt + hydrogen
Displacement reaction
when a more reactive element , replaces a less reactive one in a compound
Indication of a reaction is
A color change
Complete combustion
When oxygen reacts with a fuel to produce carbon dioxide and water
Incomplete Combustion
Occurs when the supply of air / oxygen is poor. water as still produced, but carbon monoxide and carbon are produced instead of carbon dioxide.
What would be the equation for combustion
fuel + oxygen - water + carbon dioxide
