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WorksheetsFlame Experiments 12345
Total questions: 8
Worksheet time: 4mins
What is the Chemical formula of ammonium dichromate?
(NH3)2Cr2O7
(NH4)2Cr2O7
NH3Cr2O7
NH4Cr2O7
What is the chemisal formula of the green compound that is formed when ammonium dichromate is burned?
NO2
H2O
Cr2O3
CrO
Why are Pharaoh's Snakes dangerous to do? (2 answers)
Because mercury compounds are released during this reaction
Because of amount of heat produced during reaction
Because of possibility of explosion during that experiment
Because of use of mercuric rhodanide
Is manganese heptoxide stable compound?
yes
no
Wich element reacts violently with Aluminium (Al)
Br2
H2SO4
Fe
HCl
Wich Ion makes Green Flame?
BO3 3-
Cl -
Sr 2+
Na +
What solvent is most commonly used to make coloured flames?
CH3OH
C2H5OH
C3H7OH
C4H9OH
Wich of these doesn't change flame color?
Li +
Cu 2+
H +
Cs +
