Period 3 Flashcards by Georgia McVay

Na20 ph

How well did you know this?

Not at all

Perfectly

Na20 structure

Ionic

How well did you know this?

Not at all

Perfectly

Na20 + water équations

Na20 + H20—>2NaOH(aq)
Then dissolves
O2- + H20 —> 2 OH-

How well did you know this?

Not at all

Perfectly

Na20 + acid equation

Na20 + 2H+—>2Na+ + H20

How well did you know this?

Not at all

Perfectly

What two oxides are basic

Mg0
Na20

How well did you know this?

Not at all

Perfectly

What pH does MgO have

How well did you know this?

Not at all

Perfectly

P4O10 ph

How well did you know this?

Not at all

Perfectly

SO2 pH

How well did you know this?

Not at all

Perfectly

SO3 pH

How well did you know this?

Not at all

Perfectly

MgO structure

Ionic
-higher mp than Na20 due to smaller atomic radius and higher nuclear charge with similar shielding

How well did you know this?

Not at all

Perfectly

MgO + water equations

Mg0 + H2O—>Mg(OH)2 (aq)
Some dissolve in water(less than Na20 due to higher lattice enthalapy
02- + H20–> 20H-

How well did you know this?

Not at all

Perfectly

What oxide is amphoteric

Al203

How well did you know this?

Not at all

Perfectly

MgO reaction with an acid

MgO + 2H+—>Mg2+ + H2O

How well did you know this?

Not at all

Perfectly

Al203 + acid

Al203 + 6H+ —>2Al3+ + 3H2O

How well did you know this?

Not at all

Perfectly

Al2O3 + alkali

Al2O3 + 2OH- + 3H20–>2 Al(OH)4-

How well did you know this?

Not at all

Perfectly

SiO2 + alkali

SiO2 + 2OH- —> Si03 2- + H2O

How well did you know this?

Not at all

Perfectly

P4O10 + alkali

P4O10 + 12 OH- —>4PO4 3- + 6 H2O

SO2 + alkali

SO2 + 2OH- —> SO3 2- + H2O

SO3 + alkali

SO3 + 2OH- —>SO4 2- + H2O

4N’a + O2

2Na2O

2Mg + O2

2 MgO

4Al + 302

2Al2O3

Si + O2

SiO2

P4 + 5O2

P4O10

S+ O2

SO2

2Na2O observation

Yellow orange flame White powder

2MgO observation

White flame Powder

2Al203 observation

White flame Powder

SiO2 observation

White flame Powder

P4010 observation

Bright white flame Powder

SO2 observation

Blue flame Choking gas

Electronegativity

Ability to attract a pair of electrons

Why does electronegativity increase across period 3

Increased nuclear charge Similar shielding

First ionisation energy

Energy needed to remove one electron from 1 electron from 1 mole of gaseous atom

2NaOH + H2

Effervescence Yellow orange flame

MgO + H2

White flame Powder

Mg(OH)2 + H2

Very slow

HCl + HOCl

Pale green solution

Acid plus base

Salt with bases metal and water

Phosphorus oxide plus water

P4O10 + 6H2O—> 4H3PO4

Sulfur dioxide plus water

SO2 + H2O —>H2SO3

Sulfur trioxide plus water

SO3 + H2O —>H2SO4