Chemistry Flashcard

Front

Paper burning is a __________________ change.

Back

chemical

Front

Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a

Back

physical change

Front

Which of these phrases describes the results of a chemical change? Options: charred wood, ash, and smoke, salt dissolving in water, gold nuggets melting, a dented car door

Back

charred wood, ash, and smoke

Front

An iron nail rusting is a _______________ change. The ________________ property of reactivity explains the iron’s ability to form a new substance.

Back

chemical, chemical

Front

Dissolving Kool-Aid into water is an example of a

Back

physical change

Front

Which example below is a chemical reaction? ice melting, water boiling, lighting a match, grape juice freezing

Back

lighting a match

Front

The following changes (melting wax, evaporating gasoline, freezing water) are all examples of

Back

physical changes.

Front

Which of these BEST describes a physical change? Options: fireworks explode, a log in the campfire turns into ashes, rust forms on your bicycle, the amount of water in a pan decreases

Back

the amount of water in a pan decreases

Front

Density is what kind of property?

Back

physical

Front

Matt's cube had an average density of 7.40 g/cm³. What was it made of? Options: aluminum, gold, nickel, zinc

Back

zinc