Since

A chemical change is different than a physical change because in a chemical change

• Molecules do not physically touch.

•          

  A new substance is formed and in a physical no new substance is formed

What indicates that a chemical reaction occurred?

• All of the above.

• Heat or Light is released heat or light is produced.

• Gas (bubbles) produced.

What is the law of conservation of mass?

• Mass increases during a chemical reaction. 

• Mass increases during a chemical reaction. 

In a chemical reaction, everything to the right of the arrow is call

• Yields

• Products

Which of the following is NOT an example of a chemical reaction?

• Mixing salt and water

• 
  Burning wood

• You now

• 
  Melting ice

The ________________ of a substance are ones that can be observed or measured withoutchanging the substance’s identity. 

• Mass

• Abe

• Physical propertiesYo

• Physical properties

A chemical change is different than a physical change because in a chemical change

• Molecules do not physically touch.

•          

  A new substance is formed and in a physical no new substance is formed