chemical reactions

Front

Which of the following is evidence of a chemical reaction?

Back

fizzing

Front

What are Chemical Reactions?

Back

a process in which atoms rearrange to form new substances

Front

Which of the following is NOT evidence that a chemical reaction has occurred?

• produces light/heat
• production of a gas
• formation of a precipitate
• melting

Back

melting

Front

What type of change results in no new substances?

Back

A physical change

Front

Which is an example of a physical change? Options: Burning wood, Freezing water, Rust on a car, Cooking food

Back

Freezing water

Front

Properties of matter: Magnetism, Colour, Odour

Back

All of the above