Topic 3.3 Chemical Properties Flashcards
Define molecular covalent
only covalent when existing as molecules
What is the oxide of Na?
Na2O
Alkali metals’ reaction with water is through the ________ reaction.
displacement
Reactivity of an alkali increases (down/up) a group
down
How does sulfur oxide conduct electricity in MOLTEN (liquid) state?
none
Charge of Al?
+3
Complete the reaction:
SO3(l) + H2O(l) -> _______________
H2SO4(aq)
(sulphuric acid)
Oxide of phosphorus
P4O10
Amphoterics act as a(n) _________ when reacted with an acid.
base
Complete the Reaction:
MgO(s) + H2O(l) -> _______________
Mg(OH)2(aq)
Charge on Na?
+1
Acidic/Basic Character of Na2O
Very basic
Structure of chlorine oxide?
Molecular covalent
How does SiO2 conduct electricity in MOLTEN (liquid) state?
very LOW
Define monotomic
Monotomic: exist as SINGLE atoms.
Mono-> single
What does alkali mean?
basic
Alkali metals are found where in nature?
Trick question,
they’re too reactive to occur naturally (use electrolysis to obtain them)
Electronegavity increases across a period from ________ to ________? (element names)
From Na to Cl2
Metallic nature of P (Phosphorus)
Nonmetal
Charge of S?
+6/+4
All oxides are found to be solid except in ______, ________, and ________.
S and Cl and P
Metallic nature of Na?
Metal
Structure of Silicon Oxide
Giant covalent
How does MgO conduct electricity in MOLTEN (liquid) state?
High
Complete the reaction:
Na2O(s) + H2O(l) -> _________(__)
2NaOH(aq)
Halogens and alkaline metals form ______ through the reaction of ________
Halides, displacement
Structure of MgO
GIant ionic
Amphoteric oxides act as a(n) ______ when reacted with a base.
acid
Metallic nature of Si?
Metalloid
Why are Noble gases so unreactive? (3 reasons)
Because they’re uppity jerks.
- stable octent in e- arrangement (don’t gain electron)
- don’t form ions (gain/lose)
- uber high ionization energy (don’t lose electron)
How does Al2O3 conduct electricity in MOLTEN (liquid) state?
High
Oxide of sulfur
SO3
Acidic/basic characteristic of sulfur oxide
acidic
Structure of Al2O3
Giant Ionic
where are Alkali metals stored and why?
In oil to isolate them from air and water
Structure of phosphorus oxide
Molecular covalent
Acidic/Basic character of Aluminum Oxide (Al2O3)
Amphoteric (act as acid or base)
How does chlorine oxide conduct electricity in MOLTEN state?
none
Structure of silicon oxide
molecular covalent
Charge of Si?
+4
Charge of Cl2?
+7/+1
Acidic/basic character of silicon oxide
amphoteric (meaning?)
Chemical Properties of Alkali Metals:
- ?
- ?
- ?
- ?
Chemical Properties of Alkali Metals:
- Extremely reactive
- ionic bonds with nonmetals
- form metals+
- low ionization energy (that’s why they give up their electron so quickly)
Oxide of Mg?
MgO
Reactivity of Halogens’ increases as you go (down/up) the group
up
Chemical Properties of Halogens:
- ?
- ?
- ?
- ?
Chemical Properties of Halogens:
- very reactive with nonmetals
- form ionic bonds with metals
- high effective charge (because many protons)
- one electron fills their whole octet
Oxide of Aluminum
Al2O3
Metallic nature of Sulfur
nonmetal
Charge of Mg?
+2
acidic/basic character of chlorine oxide
acidic
Metallic nature of Mg?
Metal
How does phosphorus oxide conduct electricity in MOLTEN (liquid) state?
none
Acidic/Basic characteristic of Phosphorus oxide
acidic
Physical Properties of Alkali Metals:
- ______________
- ______________
- ______________
Physical Properties of Alkali Metals:
- good conductors of electricity
- low density
- shiny surfaces when sliced
define giant covalent
repeated covalent bonds
Charge of P?
+5/+3
Physical Properties of Halogens:
- ?
- ?
Physical Properties of Halogens:
- colurful
- turn from gas -> liquid -> solid as you go down the group
Metallic nature of Cl2
nonmetal
Acidic/Basic character of MgO
basic
Structure of Na2O
Giant Ionic Structure
Metallic nature of Al?
Metal
Oxide(s) of Chlorine?
Cl2O7 (g)
Cl2O (g)
How does Na2O conduct electricity in MOLTEN (liquid) state?
High level
Properties of Noble Gases
- __________
- __________
- __________
Properties of Noble Gases
- colorless gases
- monotomic
- unreactive