Term 2 Chemistry - Advanced Chemistry

Question 1

Cations and anions

Answer 1

Cations = positively charged ions
Anions = negatively charged ions

Question 2

Multivalent metals

Answer 2

meaning some metals form two or more different positive ions with different charges
e.g. Fe(^2+) and Fe(^3+)

Question 3

Covalent compounds

Answer 3

• 2 nonmetals
• sharing of electrons

Question 4

Ionic compounds

Answer 4

• Metal and nonmetal
• Transferring of electron

Question 5

Groups 1, 2, 13
(Ionic bonding)

Answer 5

> Cations (+)
Lose electrons
G1 (+), G2 (2+), G13 (3+)

Question 6

Groups 15, 16, 17

Answer 6

> Anions (-)
Gain electrons
G15 (-), G16 (2-), G17 (3-)

Question 7

Naming covalent compounds

Answer 7

1. Write the name of the first nonmetal
2. Write the name of the second nonmetal changing its ending to -ide
3. Add prefixes to specify how many of each element are present

Question 8

Diatomic elements

Answer 8

H2 = Have
N2 = No
F2 = Fear
O2 = Of
I2 = Ice
Cl2 = Cold
Br2 = Beer

Question 9

Word equations V.S. Formulae equations

Answer 9

Word: 𝑐𝑎𝑙𝑐𝑖𝑢𝑚 𝑐𝑎𝑟𝑏𝑜𝑛𝑎𝑡𝑒+𝑠𝑢𝑙𝑓𝑢𝑟𝑖𝑐 𝑎𝑐𝑖𝑑 →𝑐𝑎𝑙𝑐𝑖𝑢𝑚 𝑠𝑢𝑙𝑓𝑎𝑡𝑒+𝑐𝑎𝑟𝑏𝑜𝑛 𝑑𝑖𝑜𝑥𝑖𝑑𝑒+𝑤𝑎𝑡𝑒𝑟
Formulae: 𝐶a𝐶𝑂_3+ 𝐻_2 𝑆𝑂_4 → 𝐶𝑎𝑆𝑂_4+𝐶𝑂_2+ 𝐻_2 𝑂

Question 10

Reactants and products

Answer 10

Reactants - left side of eqn.
Products - right
ARROW