Organic compound families, structures, and properties.
Test your knowledge with these top questions!
Which chemical formula represents methane?
The 4 means four hydrogen atoms bond to one carbon atom in each methane molecule.
What happens when vinegar containing acetic acid mixes with baking soda?
Acetic acid reacts with sodium bicarbonate to release carbon dioxide gas, the fizz in volcano experiments.
Which acetic acid salt flavors salt-and-vinegar snacks without liquid vinegar?
Sodium acetate forms when acetic acid reacts with baking soda, so the dry powder carries vinegar flavor.
Gas companies add smelly sulfur compounds to methane supplies to achieve what?
Methane has no odor, so the added sulfur smell alerts people to leaks before gas can ignite.
Which household fuel consists mostly of methane?
Natural gas is roughly 70 to 90 percent methane, which is why gas stoves and furnaces burn it for heat.
Which term describes pure acetic acid that freezes near room temperature?
Pure acetic acid freezes near 17 degrees Celsius into ice-like crystals, inspiring the word glacial.
Which farm animals release large amounts of methane during digestion?
Microbes in cattle stomachs ferment grass and release methane, mostly through burping.
Which acid gives vinegar a sharp sour taste?
Household vinegar is about 5% acetic acid in water, which creates its tangy bite.
Which acid gives vinegar its sharp sour taste?
Table vinegar is about five percent acetic acid in water, produced when bacteria ferment alcohol.
Which chemical formula represents acetic acid?
The COOH group marks acetic acid as a carboxylic acid, which releases the hydrogen that makes vinegar acidic.