Oxides

Question 1

Basic in Period 3

Answer 1

Na2O MgO

Question 2

Amphoteric in Period 3

Answer 2

Al2O3

Question 3

Acidic in Period 3

Answer 3

SiO2 P2O5 P2O10 SO2 SO3 CL2O7

Question 4

What is the trend for oxides in period 3?

Answer 4

Basic to acidic

Question 5

Sodium hydroxide reaction with water (chemical equation)

Answer 5

Na2O (s) + H2O (l) –> 2NaOH (aq)

Question 6

Magnesium Oxide reaction with water (chemical equation)

Answer 6

MgO (s) + H2O (l) –> Mg(OH)2 (aq)

Question 7

Aluminium Oxide reaction with water (chemical equation)

Answer 7

Al2O3 (s) + H2O (l) –> no reaction

Question 8

Aluminium Oxide reaction with acid

Answer 8

Aluminium Oxide acts as base and forms a salt

Question 9

Aluminium Oxide reaction with base

Answer 9

Aluminium Oxide acts as an acid and forms a salt

Question 10

Nitrogen Dioxide reaction with water (chemical equation)

Answer 10

2NO2 + H2O –> HNO2 + HNO3

Question 11

Phosphorous Pentoxide reaction with water (chemical equation

Answer 11

P4O10 (s) + 6H2O (l) –> 4H3PO4 (aq)

Question 12

Sulfur Trioxide reaction with water (chemical equation)

Answer 12

SO3 (g) + H20 (l) –> H2SO4 (aq)

Question 13

Sulfur Dioxide reaction with water (chemical equation)

Answer 13

SO2 (g) + H2O (l) –> H2SO3 (aq)

Question 14

Dichlorine Heptoxide reaction with water (chemical equation)

Answer 14

CL2O7 (l) + H20 (l) –> 2HCLO4 (aq)