section 3: compounds

Question 1

ionic compound

Answer 1

non metal and a metal
electron from the metal atom transfers to the nonmetal atom

Question 2

covalent/molecular compound

Answer 2

non metal and non metal
two atoms share electrons to fill their outer ring

Question 3

ionic properties

Answer 3

solid at room temp
high bp and mp
conduct electricity when dissolved in water
stronger bonds holding atoms
forms crystals

Question 4

covalent/molecular properties

Answer 4

not solid at room temp
low mp and bp
not conductors when in water
weaker bonds holding atoms

Question 5

how to write a compound name (IONIC)

Answer 5

metal name first
non-metal name second
ending of the nonmetal to “ide”

Question 6

how to write a formula (IONIC)

Answer 6

cross/switch the charges from the symbols
Al₃ and O₂ become Al₂O₃

Question 7

multivalent ions

Answer 7

more than one option for the charge
roman numerals in name tells the charge

Question 8

writing COVALENT compound names

Answer 8

write name of the elements in the order they appear
change the end of the last element to “ide”
use prefix to know how many of each element is needed

Question 9

writing COVALENT compound formulas

Answer 9

find name of the element for the given symbol
PREFIX number becomes the SUBSCRIPT number.

ex. carbon DIoxide
CO₂

Question 10

prefixes

Answer 10

1: MONO
2: DI
3: TRI
4: TETRA
5: PENTA

drop mono if its before the first element !!