Select the keyword or phrase that will best complete each sentence. a. alkenes
b. -ene-
c. syn and anti
d. alkanes
e. syn
f. nucleophiles
g. -yne-
h. -ane-
i. alkynes
f. electrophiles
g. anti

Compounds that contain a carbon-carbon double bond are known as
Alkenes are electron rich; therefore, simple alkenes do not react with or bases, but will react with or acids.
In the IUPAC system, an alkene is identified by the suffix -ene-
Addition reactions in which two parts Of a reagent are added to the same side of
a double bond are known as additions.
Addition reactions in which two parts of a reagent are added from opposite
sides of a double bond are called additions
Halogenation and halohydrin formation occur with -additions.

alkenes

nucleophiles

electrophiles

syn

anti

syn and anti

Explanation:

Compounds that contain a carbon-carbon double bond are known as alkenes

Alkenes are electron rich; therefore, simple alkenes do not react with nucleophiles or bases, but will react with electrophiles or acids.

In the IUPAC system, an alkene is identified by the suffix -ene-

Addition reactions in which two parts Of a reagent are added to the same side of

a double bond are known as syn additions.

Addition reactions in which two parts of a reagent are added from opposite

sides of a double bond are called anti additions

Halogenation and halohydrin formation occur with syn and anti -additions.

Further explanations:

Compounds that contain a carbon-carbon single bond are known as alkanes. Compounds that contain a carbon-carbon double bond are known as alkenes. Compounds that contain a carbon-carbon triple bond are known as alkynes.

Nucleophiles are electron rich so they react with electron deficient centers while Electrophiles are electron deficient so they react with electron rich centers.

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.