Checkpoint 1 Review

Which of the following is a property of metals?

• Brittle

• Good conductor of electricity

• Dull

• Poor conductor of heat

Tags

TEKS.SCI.6.6C

What is the chemical symbol for sodium?

• S

• Na

• So

• N

Tags

TEKS.SCI.7.6B

Which of the following is a nonmetal?

• Iron

• Oxygen

• Copper

• Silver

Tags

TEKS.SCI.6.6C

What does the Law of Conservation of Mass state?

• Mass can be created

• Mass can be destroyed

• Mass is neither created nor destroyed in a chemical reaction

• Mass is always lost in a chemical reaction

Tags

TEKS.SCI.8.6E

Which element is a metalloid?

• Silicon

• Gold

• Helium

• Sodium

Tags

TEKS.SCI.6.6C

• 1

• 2

• 3

• 0

Tags

TEKS.SCI.7.6B

Which of the following is a rare Earth element?

• Neodymium

• Carbon

• Oxygen

• Sodium

Tags

TEKS.SCI.6.6C

If a block floats in water but sinks in oil, what can you infer about its density?

• It is less than water and oil

• It is more than water but less than oil

• It is less than water but more than oil

• It is more than both water and oil

Tags

TEKS.SCI.6.6D

• 1

• 2

• 3

• 0

Tags

TEKS.SCI.7.6B

Which of the following best describes the rearrangement of atoms in a chemical reaction?

• Atoms are destroyed

• Atoms are created

• Atoms are rearranged to form new substances

• Atoms disappear

Tags

TEKS.SCI.8.6E