Chapter 3

Question 1

some metals that form cations with different charges

Answer 1

CCC L TMI

Copper (l)
Copper (ll)

Cobalt (ll)
Cobalt (lll)

Chronium (ll)
Chronium (lll)

Led (ll)
Led (lV)

Tin (ll)
Tin (lV)

Mercury (l)
Mercury (ll)

Iron (ll)
Iron (lll)

Question 1

how to name binary molecular compounds

Answer 1

element with lowest EN is listed first, use prefixes, end in -ide

Question 2

how to name binary acids

Answer 2

-only 2 elements

1. begin with hydro
2. base name of nonmetal + -ic
3. end with acid

hydrochloric acid HCl

2nd: OXYACIDS aka TERNARY (3 elements)
-contains oxygen

Question 3

how to name oxyacids or ternary acids

Answer 3

-contains oxygen
-3 elements

ends in “-ate”…
1. base name of oxyanion + -ic
2. end with acid

ends in “-ite”…
1. base name of oxyanion + -ous
2. end with acid

nitrous acid HNO2
dont put hydro before

Question 4

how to calculate empirical formula when given mass in g of each elemnent

Answer 4

1. convert to moles
2. divide by smallest number