12.1

Higher pressure means ______________ collisions between gas particles and the walls of their container.

• more

• less

• faster

• harder

Tags

NGSS.MS-PS1-4

Lighter gases have a ________________ rate of effusion.

• faster 

• slower

• rate of effusion does not depend on mass.

If all these flasks have the same amount of gas, which has the least pressure?

• flask 1

• flask 2

• flask 3

• flask 4

The picture below is an example of _________________ .

• osmosis

• effusion

• diffusion

Atmospheric condition where warm air traps cooler air near Earth’s surface, pollutants are trapped at Earth's surface

• secondary pollutants

• temperature inversion

• particulate matter pollution

Have no emissions from tailpipes or gasoline

• primary pollutants

• zero-emission vehicles (ZEVs)

• electrostatic precipitators

Tags

NGSS.MS-ETS1-2

A mixture of smoke and fog that results from chemical reactions involving sunlight, air, exhaust, and ozone

• smog

• primary pollutants

• temperature inversion

Which pollution-control device helps clean car exhaust and is required in all vehicles?

• electrostatic precipitator

• scrubber

• catalytic converter

Tags

NGSS.MS-ETS1-2

What is the atomic number of Magnesium?

• 10

• 11

• 12

• 13

Which of the following elements has an atomic number of 12?

• Sodium

• Magnesium

• Aluminum

• Silicon