Period 3 Elements – Flashcards

Unlock all answers in this set

Unlock answers
question
What would be observed when Sodium burns in oxygen?
answer
Yellow flame
question
What would be observed when Magnesium burns in oxygen?
answer
white flame / white light
solid / powder / smoke / ash / white fumes
question
What would be observed when Aluminium burns in oxygen?
answer
White flame
question
What would be observed when Silicon burns in oxygen?
answer
White flame
White smoke
question
What would be observed when Phosphorus burns in oxygen?
answer
White flame
Smoke
question
What would be observed when Sulphur burns in oxygen?
answer
blue flame
fumes or misty or pungent/choking/smelly gas
question
What is the equation for the reaction that takes place when Sodium burns in oxygen?
answer
4Na + O2 -> 2Na2O
question
What is the equation for the reaction that takes place when Magnesium burns in oxygen?
answer
2Mg + O2 -> 2MgO
question
What is the equation for the reaction that takes place when Aluminium burns in oxygen?
answer
4Al + 3O2 -> 2Al2O3
question
What is the equation for the reaction that takes place when Silicon burns in oxygen?
answer
Si + O2 -> SiO2
question
What is the equation for the reaction that takes place when Phosphorus burns in oxygen?
answer
4P + 5O2 -> P4O10
question
What is the equation for the reaction that takes place when Sulphur burns in oxygen?
answer
S + O2 -> SO2
question
What is the bonding in Sodium oxide?
answer
Ionic
question
What is the bonding in Magnesium oxide?
answer
Ionic
question
What is the bonding in Aluminium oxide?
answer
Ionic
question
What is the bonding in Silicon oxide?
answer
Covalent
question
What is the bonding in Phosphorus oxide?
answer
Covalent
question
What is the bonding in Sulphur dioxide?
answer
Covalent
question
What are the properties of Sodium?
answer
Soft, silver, shiny
Conducts electricity
question
What are the properties of Magnesium?
answer
Soft, silver, shiny
Conducts electricity
question
What are the properties of Aluminium?
answer
Easily malleable, silver, shiny
Conducts electricity
question
What are the properties of Silicon?
answer
Hard, grey-blue solid
Partial conductor of electricity (check this)
question
What are the properties of Phosphorus?
answer
Red or white solid, low melting and boiling point
Doesn't conduct electricity
question
What are the properties of Sulphur?
answer
Yellow solid, low melting and boiling point
Doesn't conduct electricity
question
What are the properties of Chlorine?
answer
Green gas, low melting and boiling point
Doesn't conduct electricity
question
What are the properties of Argon?
answer
Colourless, odourless gas
Unreactive
question
What are the observations when Sodium reacts with water?
answer
Violent reaction
Hydrogen released
question
What are the observations when Magnesium reacts with water?
answer
Slow reaction
Hydrogen released
question
What are the observations when Magnesium reacts with steam?
answer
Fast reaction
Hydrogen released
question
What are the observations when Chlorine reacts with water?
answer
Chlorine dissolves
Hydrochloric acid formed
Chloric acid formed
question
What is the equation for the reaction of Sodium with water?
answer
2Na(s) + 2H2O(l) -> 2NaOH(aq) + H2(g)
question
What is the equation for the reaction of magnesium with water?
answer
Mg(s) + 2H2O(l) -> Mg(OH)2(aq) + H2(g)
question
What is the equation for the reaction of magnesium with steam?
answer
Mg(s) + H2O(g) -> MgO(s) + H2(g)
question
What is the equation for the reaction of Chlorine with water?
answer
Cl2(aq) + H2O(l) HClO(aq) + HCl(aq)
question
What are the properties of sodium oxide?
answer
White
High melting point (1548K)
question
What are the properties of the magnesium oxide?
answer
White
High melting point (3125K)
question
What are the properties of the Aluminium oxide?
answer
White
High melting point (2345K)
question
What are the properties of the Silicon oxide?
answer
White
High melting point (1883K)
question
What are the properties of the Phosphorus oxide?
answer
Low melting point (573K)
question
What are the properties of the Sulphur oxide?
answer
Low melting point (200 for SO2, 290K for SO3)
question
What is the structure of the sodium oxide?
answer
Giant ionic
question
What is the structure of the magnesium oxide?
answer
Giant ionic
question
What is the structure of the aluminium oxide?
answer
Giant ionic
question
What is the structure of the silicon oxide?
answer
Giant covalent / Macromolecular
question
What is the structure of the phosphorus oxide?
answer
Molecular
question
What is the structure of the sulphur oxide?
answer
Molecular
question
What is observed when the sodium oxide is reacted with water?
answer
Strongly alkaline solution formed
pH 13-14
question
What is observed when the magnesium oxide is reacted with water?
answer
Weakly alkaline solution formed
pH 10
question
What is observed when the aluminium oxide is reacted with water?
answer
No reaction
question
What is observed when the silicon oxide is reacted with water?
answer
No reaction
question
What is observed when the phosphorus oxide is reacted with water?
answer
Strongly acidic solution produced
pH 0-1
question
What is observed when sulphur dioxide is reacted with water?
answer
Acidic solution produced pH 2-3
question
What is observed when sulphur trioxide is reacted with water?
answer
White foggy droplets of acid form pH 0-1
question
What is the equation for reaction of water with the sodium oxide?
answer
Na2O + H2O -> Na+ + 2OH-
question
What is the equation/s for reaction of water with the magnesium oxide?
answer
Mg + H2O -> Mg(OH)2
Mg(OH)2 -> Mg2+ + 2OH-
question
What is the equation for reaction of water with the Aluminium oxide?
answer
No reaction
question
What is the equation for reaction of water with the silicon oxide?
answer
No reaction
question
What is the equation for reaction of water with the phosphorus oxide?
answer
P4O10 + 6H2O -> 4H3PO4
question
What is the equation/s for reaction of water with sulphur dioxide?
answer
SO2 + H2O -> H2SO3
H2SO3 -> H+ + HSO3-
question
What is the equation/s for reaction of water with sulphur trioxide?
answer
SO3 + H2O -> H2SO4
H2SO4 -> H+ + HSO4-
question
What is the equation for the reaction that occurs when sodium oxide reacts with hydrochloric acid?
answer
Na2O + 2HCl -> 2NaCl + H2O
question
What is the equation for the reaction that occurs when magnesium oxide reacts with sulphuric acid?
answer
MgO + H2SO4 -> MgSO4 + H2O
question
What is the equation for the reaction that occurs when aluminium oxide reacts with sulphuric acid?
answer
Al2O3 + 3H2SO4 -> Al2(SO4)3 + 3H2O
question
What is the equation for the reaction that occurs when aluminium oxide reacts with hot, concentrated sodium hydroxide (and water)?
answer
Al2O3 + 2NaOH + 3H2O -; 2NaAl(OH)4
question
What is the equation for the reaction that occurs when aluminium oxide reacts with hydrochloric acid?
answer
Al2O3 + 6H+ -> 2Al3+ + 3H2O
question
What is the equation for the reaction that occurs when aluminium oxide reacts with sodium hydroxide?
answer
Al2O3 + 2OH– + 3H2O -> 2Al(OH)4–
question
What is the equation for the reaction that occurs when silicon oxide reacts with hot, concentrated sodium hydroxide?
answer
SiO2 + 2NaOH -; Na2SiO3 + H20
question
What is the equation for the reaction that occurs when phosphorus oxide reacts with hot, concentrated sodium hydroxide?
answer
12NaOH + P4O10 -; 4Na3PO4 + 6H2O
question
What is the equation/s for the reaction that occurs when sulphur dioxide reacts with sodium hydroxide?
answer
SO2 + NaOH -> NaHSO3
NaHSO3 + NaOH -> Na2SO3 + H2O
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New