Chemistry Final Exam Review

What volume will 15.2 moles of carbon dioxide (CO₂) occupy at STP?

• 0.67 L

• 1.5 L

• 340 L

• 7.7 L

How many milliliters are in 5.4 Liters?

• 5,400 mL

• 54 mL

• 540 mL

• 0.0054 mL

Based on the graph, what is the half-life of iodine-131?

• 5 days

• 8 days

• 13 days

• 20 days

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NGSS.HS-PS1-8

Calculate the density of a substance with a mass of 78.5 grams and a volume of 5.6 mL.

• 440 g/mL

• 14 g/mL

• 0.071 g/mL

What element has the following electron configuration? 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p².

• Titanium

• Calcium

• Germanium

• Zirconium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The (a)   are the most reactive family on the periodic table.

• Alkali metals

• Noble gases

• Carbon family

• Transition metals

What is the charge formed when phosphorus (P) satisfies the octet rule?

• +3

• -1

• -3

• +5

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons can occupy the d sublevel?

• 6

• 2

• 10

• 5

Which of the following has the largest atomic radius?

• Barium (Ba)

• Neon (Ne)

• Beryllium (Be)

• Scandium (Sc)

Tags

NGSS.HS-PS1-1

The diagram shows the Lewis electron-dot structure of element X at ground state. Which of these could be the atomic number of element X?

• 21

• 3

• 18

• 5

Tags

NGSS.HS-PS1-1