Chapter 6 😄

Question 1

CaCl2 How many of each element is there

Answer 1

Ca: 1
Cl:2

Question 2

CaC2 How many of each element is there

Answer 2

Ca: 1
C: 2

Question 3

C6H5OH How many of each element is there

Answer 3

C: 6
H: 5
O: 1
H: 1

Question 4

CO2 How many of each element is there

Answer 4

C: 1
O: 2

Question 5

(C2H5)2O How many of each element is there

Answer 5

C: 4
H: 10
O: 1

Question 6

2PbCO3

Answer 6

Pb: 2
C: 2
O: 6

Question 7

What are properties of an Ionic compound?

Answer 7

METAL + NON-METALS
High Melting Point
Crystals
Dissolve in water
Conduct electricity in solution Brittle

Question 8

What are properties of a molecular compound?

Answer 8

ONLY Non- metals
Weak bond
Solid / liquid/ gas
Insulators
Low boiling point

Question 9

What is the diffrence between an Ionic and molecular compound?

Answer 9

An Ionic compound is a mix of Metals and Non-Metals. Molecular Compound are Insulators and Ionic compounds are conducters in solution.

Question 10

What are the physical and chemical properties of salt. (include chemical formula)

Answer 10

Chemical formula: NaCl

Physical Properties: White Crystaline Powder, Souluble, Salty taste, no odour,.

Chemical Properties: Non-combustible, Non-Toxic, Non-decomposible

Question 11

What are the physical and chemical properties of Glucose. (include chemical formula)

Answer 11

Chemical formula: C6 H12 O6

Physical Properties: Clear, sweet flavour, Soluble.

Chemical Properties: Insulator, combstible, Non-Toxic. Flammable.

Question 12

What are the physical and chemical properties of Insulin. (include chemical formula)

Answer 12

Chemical formula: C254 H377 N65 O75 S6

Physical Properties: Soluble, clear, Chemical like smell, liquid.

Chemical Properties: Non combustible/flammable, absorbs light.