Chemical Changes Review Practice

Multiple Choice

Which of these would be a sign of a chemical change?

• Unexpected color change

• Expected color change

• Change in shape

• Melting/Freezing (change in state of matter)

Multiple Select

Which of these would be a sign of a chemical change?

• Change in size

• Change in melting point

• Item is broken into smaller pieces

• Forms a precipitate

Multiple Select

Which of these would be a sign of a chemical chage?

• Unexpected color change

• Expected color change

• Forms a precipitate

• Change in melting point

Multiple Select

Na + Cl ---> NaCL

Select all that are true.

• A new substance was created

• No new substance was created

• A chemical change occurred

• A physical change occurred

Multiple Choice

There is a new element called Laynium. It is very rare. Here is a chart to show you before after heating. What kind of change occurred and why?

• Chemical change, formed a gas

• Physical change, unexpected color change

• Chemical change, change in size

• Physical change, change in melting point

Multiple Select

There is a new element called Laynium. It is very rare. Here is a chart to show you before after heating. Select all that would be signs of a chemical change?

• Formed a gas

• Unexpected color change

• Change in size

• Solid to solid

Multiple Choice

When you heat up an element it:

• always goes through a chemical change

• sometimes goes through a chemical change

• always goes through a physical change

• never goes through a change

Multiple Choice

This is an example of:

• A chemical change because nothing new was created

• A physical change because something new was created

• A chemical change because something new was created

• A physical change because nothing new was created

Multiple Choice

Which letter shows the solid?

• A

• B

• C

• D

Multiple Choice

Which would show a change from ice to liquid water?

• A to C

• B to C

• C to A

• A to B

Multiple Choice

Which letter shows the gas?

• A

• B

• C

• D