Final Exam Review (PL) - Part 4

Uranium-232 has a half-life of 70 years. How much of a 400 g sample will remain after 280 years? (Make a chart!)

• 40g

• 80g

• 160g

• 20g

According to the Law of Conservation of Matter, mass cannot be __________ or __________.

• Increased, decreased

• Measured, weighed

• Created , destroyed

Tags

NGSS.MS-PS1-5

Balance the equation: _____C + _____Fe₂O₃ → _____Fe + _____CO

• 3, 1, 2, 3

• 1, 2, 3, 1

• 2, 3, 1, 2

• 1, 3, 2, 1

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance the equation: _____KCl + _____F₂ → _____KF + _____Cl₂

• 2, 1, 2, 1

• 1, 2, 1, 2

• 2, 2, 1, 1

• 1, 1, 2, 2

Tags

NGSS.MS-PS1-5

Classify the reaction: HCl + NaOH → NaCl + H2O

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

What is the chemical formula for sulfur tetrafluoride?

• SF4

• SF6

• S2F6

• S4F2

Tags

NGSS.MS-PS1-1

What happens to the air pressure inside car tires when driving on a hot road for a long time?

• It decreases

• It remains the same

• It increases

• It fluctuates

Tags

NGSS.MS-PS1-4

What happens to the volume of car tires when driving on a hot road for a long time?

• It decreases

• It remains the same

• It increases

• It fluctuates

Tags

NGSS.MS-PS1-4

What condition allows fusion to occur on the sun?

• Low temperature and high pressure

• High temperature and low pressure

• High temperature and high pressure

• Low temperature and low pressure

Tags

NGSS.HS-ESS1-1

Which statement is true about KClO3 and KCl at 0°C?

• KClO3 is more soluble

• KCl is more soluble

• They are equally soluble

• Both are insoluble

Tags

NGSS.MS-PS1-2