Chemistry Flashcard

Front

What is a hydrogen bond?

Back

A hydrogen bond is a weak attraction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.

Front

Which diagram depicts how water forms hydrogen bonds?

Back

Diagram A shows the arrangement of water molecules and their hydrogen bonds.

Front

What is cellulose?

Back

Cellulose is a polysaccharide that serves as a structural component in the cell walls of plants.

Front

How many valence electrons does phosphorus (P) have?

Back

Phosphorus has 5 valence electrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in an atom's outermost shell that are involved in chemical bonding.

Front

What type of reaction builds macromolecules from monomers?

Back

Macromolecules are built by joining monomers through dehydration synthesis.

Front

What is dehydration synthesis?

Back

Dehydration synthesis is a chemical reaction that involves the removal of water to join two molecules together.

Front

What is the significance of valence electrons in chemical reactions?

Back

Valence electrons determine how an atom can bond with other atoms, influencing the chemical properties of the element.

Front

What role do hydrogen bonds play in water's properties?

Back

Hydrogen bonds contribute to water's high surface tension, boiling point, and solvent capabilities.

Front

What is a macromolecule?

Back

A macromolecule is a large complex molecule, such as proteins, nucleic acids, carbohydrates, and lipids, made up of smaller units called monomers.