Chemistry MOY

Front

What are the three phases of water?

Back

Solid (ice), Liquid (water), Gas (vapor)

Front

What happens to intermolecular attractions when vapor is cooled?

Back

Intermolecular attractions increase as the vapor cools and condenses into a liquid.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance, such as melting or freezing.

Front

What is sublimation?

Back

The process where a solid changes directly into a gas without becoming a liquid.

Front

What is a characteristic of alkali metals?

Back

They have a single electron in their outermost shell, making them highly reactive.

Front

What is a covalent bond?

Back

A chemical bond formed by the sharing of electrons between atoms.

Front

Which compound contains a covalent bond: MgCl2, Rb2, SO3, or KCl?

Back

SO3 (sulfur trioxide) contains covalent bonds.

Front

What is the formula for lithium nitride?

Back

Li3N.

Front

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

Back

A physical change affects the form of a substance, while a chemical change alters its chemical composition.

Front

What is the boiling point of water?

Back

100 degrees Celsius (at standard atmospheric pressure).