HC Fall Final Review (2-11+22)

Front

What type of bond is formed between hydrogen and oxygen based on electronegativity values?

Back

Polar covalent bond.

Front

What is the correct formula for Phosphorus tribromide?

Back

PBr₃

Front

What type of change occurs when baking powder releases carbon dioxide in baking?

Back

Chemical Change.

Front

What type of change is represented by chewing food, and what type is represented by the conversion of starch into sugars?

Back

Physical change then Chemical change.

Front

How many carbons are in the longest chain of a molecule with 10 carbons?

Back

10.

Front

Define electronegativity.

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond.

Front

What is a polar covalent bond?

Back

A bond where electrons are shared unequally between two atoms, resulting in partial charges.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is the significance of carbon dioxide in baking?

Back

Carbon dioxide causes dough to rise, creating a light and airy texture in baked goods.

Front

What is the formula for calculating the number of carbons in a chain?

Back

Count the number of carbon atoms in the longest continuous chain.