Phosphorus Oxidation
Click on the correct answer.
1
Phosphorus combines with oxygen to form a single substance. With this information alone the reaction may be said to be
a redox reaction
a double replacement reaction
a decomposition reaction
a photoemission reaction
a combination reaction
2
If the heat of a reaction is intense enough
the reaction may burst into flame
the reaction may undergo photoemission
the reaction will be a decomposition reaction
the reaction will form a gas
the reaction will be endothermic
3
The compound tetraphosphorous pentoxide
contains two different elements
contains only one phosphorus atom
contains four phosphorus atoms
contains ten oxygen atoms
contains five oxygen atoms
4
When phosphorus combines with oxygen the combination ratio is
one P to one O
two P to one O
three P to two O
four P to 10 O
six P to 10 O
5
Which are correct?
Tetra is the Greek prefix for "three"
Tetra is the Greek prefix for "four"
Penta is the Greek prefix for "five"
Deca is the Greek prefix for "six"
Deca is the Greek prefix for "ten"
6
Whether or not the phosphorus burns in this demonstration depends on
how much of it there is
how hot it is
if it is finely dispersed or not
if it can combine with oxygen or not
whether it is rubbed or not
7
Photoemission is
the dissipation of photons
the emission of heat
the combustion with oxygen
the combination with oxygen
the emission of light
8
A dictionary shows that the word "phosphorus" itself actually means
light bringer
heat maker
yellow substance
waxy material
stuff of life
9
The experiment demonstrates
an element that is exceptionally stable in air
an element that produces light
an element that combines with oxygen
an element that is very rare
an element that is a liquid
10
The photoemission in this demonstration is best described as
a glow
a bright light
an intense fire