Carbons & Bonding
This is the number of valence electrons carbon has.
What is 4.
Hydrocarbons are made of these two elements.
What are carbon and hydrogen?
These are compounds with the same formula but different structures.
What are isomers?
This macromolecule provides quick energy.
What are carbohydrates?
This is the building block of a polymer.
What is a monomer?
This type of bond forms when atoms share electrons, like carbon does.
What is a covalent bond.
A hydrocarbon with only single bonds is called this.
What is an alkane?
Isomers have different properties because of this.
What is their structure?
This macromolecule is made of amino acids.
What are proteins?
A molecule with a C≡C bond is this type of hydrocarbon.
What is an alkyne?
Carbon can form single, double, and triple bonds. This is why it can form so many different ______.
What are compounds?
A molecule with a double bond is classified as this type of hydrocarbon.
What is an alkene?
Two molecules both have C₂H₆O but behave differently. What concept explains this?
What are isomers?
This macromolecule stores genetic information.
What are nucleic acids?
This functional group is written as –OH.
What is a hydroxyl group?
A triple bond is stronger than a single bond. Explain why this matters for molecule stability.
What is (it makes the molecule more stable/less flexible)?
Explain the difference between saturated and unsaturated hydrocarbons.
What is (saturated = single bonds, unsaturated = double/triple bonds)?
Explain why changing structure changes properties.
What is (shape affects how molecules interact/react)?
Explain why lipids are better for long-term energy storage.
What is (they store more energy in their bonds)?
Draw or describe a 2-carbon alkene.
What is (C=C with hydrogens attached)?
Why can carbon bond with itself to form long chains?
What is (because it has 4 valence electrons and forms stable covalent bonds)?
Why are unsaturated hydrocarbons often more reactive?
What is (because double/triple bonds are less stable/easier to break)?
Give an example of how two isomers might be used differently in real life.
What is (answers vary—alcohol vs ether, etc.)
Compare carbohydrates and lipids in terms of energy use.
What is (carbs = quick energy, lipids = long-term storage)?
A student changes a single bond to a double bond. Predict what happens to the molecule.
What is (it becomes unsaturated and properties change)?