EOY Review #1

Which of the following is not a compound?

• HCl

• NaCl

• Cl

• CO₂

What cannot be broken down into other substances?

• Compound

• Solids

• Mixture

• Element

What is made up two or more elements that are chemically combined?

• Element

• Compound

• Mixture

• Solids

This picture represents which of the following?

• element

• mixture

• compound

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Frank has a paper clip. It has a mass of 9g and a volume of 3cm³. What is its density?

• 3 g/cm³
• 1/3 g/cm³
• 27 g/cm³
• 39 g/cm³

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

At which point is potential energy greatest?

• W
• X
• Y
• Z

When a pendulum swings, at which point is potential energy at its greatest?

• 1
• 2
• 3
• 4

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction
• convection
• radiation
• Insolation