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Copy of Physical Chemical Change Bell Ringer (11/8/2024)

Last updated over 1 year ago

4 questions

1

7.6.C

1

1

1

Question 1

1.

Your friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke. Is this a physical or a chemical change?

It is a physical change because the bread has formed a new substance

It is a chemical change because the burning of the bread has formed a new substance and released a gas.

It is a chemical change because the bread is still bread just toasted

It is a physical change because it just changed the color

Question 2

2.

What type of change happens when a match is lit?

Physical change

Chemical change

Question 3

3.

Blue Color
Density

Question 4

4.

Is NaCl (table salt) dissolving in water a physical or a chemical change?

Physical change because a new substance was created

Chemical change because a new substance was created

Physical change because a new substance was not created 

Chemical change

Flammability

Solubility 

Supports Combustion

Sour Taste

Melting Point

Reacts with water

Hardness

Boiling point 

Reacts with air

Chemical Property

Physical Property