Ionic Bonding

Question 1

How to show the bonding

Answer 1

1. State the Lewis dot diagram for each element
2. Use arrows to transfer electrons until both atoms are happy and full
3. Write the ion number for each atom
4. Formula and name

Question 2

Which element always comes first when naming?

Answer 2

The metal

Question 3

What is the ending for ionic compounds?

Answer 3

IDE

Question 4

What are polyatomic ions?

Answer 4

A charged particle that contains many atoms

Question 5

What charge do grouped ions get?

Answer 5

When 2 or more atoms are grouped together the whole group assumes a particle charge

Question 6

Criss cross formula

Answer 6

1. State ion symbols (-/+)
2. Eliminate charges and cross numbers
3. Name and formula reduced!!

Question 7

What are Binary acids

Answer 7

(H) hydrogen plus a single atom

Question 8

What are Oxy acids

Answer 8

(H) hydrogen plus polyatomic atoms

Question 9

what is an acid?

Answer 9

Ionic compounds that have hydrogen acting as a cation (if its first in the formula)

Question 10

What is covalent bonding

Answer 10

The sharing of electrons between 2 non metals

Question 11

•• what are these?

Answer 11

These are paired electrons they are full and happy and are not involved with any co Valent bonding

Question 12

• what is this

Answer 12

This is an unpaired electron it is involved with co Valent bonding

Question 13

What is a combining capacity

Answer 13

The number of unpaired electrons

Question 14

Which atom is placed at the centre?

Answer 14

The atom with the greatest combining capacity

Question 15

What are synthesis reactions?

Answer 15

A+B=AB

Question 16

What are decomposition reactions?

Answer 16

AB=A+B

Question 17

What is single displacement?

Answer 17

AB+C=AC+B

Question 18

What is combustion?

Answer 18

Feul+ O2=CO2+H2O+NRG

Question 19

What is double displacement?

Answer 19

AB+CD=AD+BC

Question 20

What is neutralization?

Answer 20

Acid +base = salt +water

Question 21

How to balance chemical equations?

Answer 21

1. Divide reactants from products.
2. Place “_____” in front of each element/compound
3. Change the co-efficient using a guess and check method until reactants and products are balanced
   * KEEP POLYATOMICS GROUPED IF ON BOTH SIDES OF EQUATIONS*

Question 22

What is the activity series

Answer 22

• only single displacement reactions

* the higher up the MORE attractive

Question 23

What is an ionic bond

Answer 23

It is the transfer of electrons from a metal to a non metal

Question 24

How long have steel swords been made?

Answer 24

1000 years or 1200 years

Question 25

What two raw materials are put into the smelting furnace (tatara) to make steel?

Answer 25

Charcoal

Iron or sand

Question 26

What two elements are found in these raw materials?

Answer 26

Iron and carbon

Question 27

How does carbon affect the properties of steel

Answer 27

Gives it more strength, makes it harder

Question 28

What happens if there is too much carbon in the steel

Answer 28

It makes the steel brittle

Question 29

How many days does it take to produce the steel?

Answer 29

4 days

Question 30

What are the impurities in steel called?

Answer 30

Slag

Question 31

What element makes steel weak?

Answer 31

Sulfue and phosphorus

Question 32

What does the sword maker do that makes the steel hard and less bendable?

Answer 32

Hammering

Question 33

Are tough metals better at bending or holding an edge?

Answer 33

Bending

Question 34

Are hard metals better at bending or holding an edge?

Answer 34

Holding an edge

Question 35

What temperature is the awkward heated to before quenching?

Answer 35

1500 degrees F

Question 36

What causes the sword to bend?

Answer 36

The contracting of the two metals at different times

Question 37

How many people and how much time is needed to make a samurai sword

Answer 37

15 people

6 months