Exit Ticket P.7.5A.2

When a chocolate bar melts, the chemical properties of that substance are [BLANK]

• different

• the same

• density

• pure substance

10. The temperature at which a solids becomes a liquid is its ____________________.

• freezing point

• melting point

• density

• solubility

Which of the following is NOT an indicator that a chemical change has occurred?

• a change in state

• a temperature change

• a color change

• bubbles

Which of the following is NOT an example of a physical change?

• dissolving sugar in water

• bending a metal rod

• melting an ice cube

• burning paper

A student pours one liquid into another. The mixture changes color to a bright red and then becomes cold. In this process, what is the FIRST evidence that a new substance has formed?

• The liquids were mixed.

• The mixture turns a bright red.

• The temperature decreases.

• There is more liquid now.

The smallest particle of any type of matter which has the properties of the element is known by which of the following terms?

• element

• compound

• chemical

• atom

What is a property that requires a chemical interaction to observe?

• Chemical property

• Chemical reaction

• Physical property

• Pure substance

What occurs when one or more substances change to produce one or more different substances?

• Chemical property

• Chemical reaction

• Physical property

• Pure substance

Select the chemical reactions

• Combining hydrogen and oxygen to create water

• Water is heated and turns to steam

• Water freezes and turns to ice

• An egg is cooked and fried

Which of the following is not a chemical property? 

• rusting 
• boiling 
• rotting 
• burning