Dr. Williams Chem 2 Final

Addition of Br2 to cyclohexene gives which compound as the final product?

1,2-dibromocyclohexane

give the number of covalent bonds that a carbon atom can form

4

An Alkyne with 4 carbon atoms has how many hydrogen atoms?

6

All of the following are isomers of 2-butene (C4H8) except: A. cis-2-butene B. trans-2-butene C. cyclobutene D. 1-butene E. 2-methylpropene

C. cyclobutene

Which of the following compounds cannot exist: C2H3, C2H4, C3H8, C4H10, C3H4?

C2H3

Write a balanced chemical equation to represent the combustion of 2,2-dimethylpropane.

C5H12 + 8O2 ---> 5CO2 +6H2O

Identify the formula for an alkene

CnH2n

What is the IUPAC name for formaldehyde?

methanal

Write the balanced chemical equation to represent the reaction of 3-ethyl-2-methylhexane with Br2

C9H20 + Br2 ---> C9H19Br + HBr

give the product for the dehydration (removal of water) of Ch3Ch2CH3Ch2OH

CH3CH=CH2

identify the formula for an alkane

CnH2n+2

Hydrogen bonding occurs between hydrogen and... A. Oxygen B. fluorine C. nitrogen D. all of these E. none of these

D. all of these

Determine the products in the following reaction: Benzene + CH3CH2Cl

ethylbenzene and HCl

True or False? 2-pentanone can be oxidized

false

What is the chief source of hydrocarbons in nature

fossil fuels

Comparison of the boiling points of aldehydes and ketones with those of other compounds of similar mass shows that they are

higher than those of alkanes but lower than those of alcohols

oxidation of a secondary alcohol produces a

ketone

A molecule of propene contains

one carbon-carbon double bond

What kind of carbon is 3-methylheptane? (Unsaturated or saturated)

saturated

True of false? Ketones are resistant to oxidation and aldehydes readily undergo oxidation

True

True or false? Aldehyde molecules cannot hydrogen bond to other aldehyde molecules

True

Ethyne burns in oxygen to form carbon dioxide and water. What are the coefficients required to balance the chemical equation for the combustion of ether below? C2H2 + XO2 ---> YCO2 + ZH2O

X = 2.5, Y=2, Z=1

Alkenes undergo what kinds of reactions?

addition and combustion

When a primary alcohol undergoes an oxidation reaction, it results in a...

aldehyde

What kind of compound is CH3CH2CH=O

an aldehyde

Oxidation of an aldehyde results in a

carboxylic acid

The main types of reactions that saturated hydrocarbons participate in are

combustion and substitution

Two atoms share four electrons. What type of bond is formed between these two atoms?

double bond

Organic compounds called isomers have

the same molecular formulas but different physical structures