Chemistry chapter 7&8&9 test study guide
what is the ending for the names of all binary compounds, both ionic and molecular
-ide
when the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix
-ous
What is the formula unit of aluminum oxide?
Al2O3
Write the formula for the compound boron chloride
BCl3
What is the correct formula for barium chlorate?
Ba(ClO3)2
write the formula for the compound barium oxide
BaO
What covalent bond is most polar of a.H-N b. H-F c. H-H d. H-C
H-F
what is the formula for hydrosulfuric acid
H2S
what is the formula for sulfurous acid
H2SO3
what is the formula for phosphoric acid
H3PO4
what is the formula for potassium sulfide?
K2S
What is the correct formula for potassium sulfite?
K2SO3
what is the formula for sodium sulfate?
Na2SO4
what is the formula unit of sodium nitride?
Na3N
Write the formula for the compound rubidium phoshide
Rb3P
A) 2 How many valence electrons are in an atom of magnesium? A) 2 B) 3 C) 4 D) 5
a
how does oxygen obey the octet rule when reacting to form compounds A. it gains electrons B. oxygen does not obey the octet rule C. it gives up electrons D. it does not change its number of electrons
a
how many electrons does nitrogen gain in order to achieve a noble-gas electron configuration A. 3 B. 4 C. 2 D. 1
a
What type of ions have names ending in -ide? a. only cations b. only anions c. only metal ions only d. only gaseous ions
b
what is the formula of the ion formed when phosphorus achieves a noble-gas electron configuration A. P²+ B. P³- C. P³+ D. P²-
b
what is the name given to the electrons in the highest occupied energy level of an atom? a. orbital electrons b. valence electrons c. anions d. cations
b
how many electrons does barium have to give up to achieve a noble gas electron configuration A. 4 B. 3 C. 2 D. 1
c
the octet rule states that, in chemical compounds, atoms tend to have _____. A. eight elctrons in their principal energy level B. more protons than electrons C. the electron configuration of a noble gas D. more electrons than protons
c
what is the electron configuration of the calcium ion? A. 1s²2s²2p⁶3s²3p⁴4s² B. 1s²2s²2p⁶3s² C. 1s²2s²2p⁶3s²3p D. 1s²2s²2p⁶3s²3p⁵4s¹
c
How many valence electrons are in an atom of phosphorus? A) 2 B) 3 C) 4 D) 5
d
how does calcium obey the octet rule one reacting to form compounds? A. calcium does not obey the octet rule when reacting to form compounds B. it does not change its number of electrons C. it gains electrons D. it gives up electrons
d
what is the charge on the cation in the ionic compound sodium sulfide A. 3+ B. 2+ C. 0 D. 1+
d
what is the formula of the ion formed when potassium achieves noble-gas electron configuration A. K¹- B. K²- C. K²+ D. K+
d
Which of the following particles are free to drift in metals?
electrons
Suppose you encounter a chemical formula with H as the cation. What do you know about this compound immediately?
its an acid
what determines that an element is a metal?
its position on the periodic table
What is the name of the ionic compound formed from lithium and bromine?
lithium bromide
What are the properties of covalent compounds?
low melting point
what types of elements make up ionic compounds?
metals and nonmetals
A bond formed between a silicon atom and an oxygen atom is likely to be...
polar covalent
what is the name of the formula KNO3
potassium nitrate
The name for the acid H2SO4 is
sulfuric acid
What is the correct name for Sn3(PO4)2
tin(ii) phosphate
