RC Pre Lab Quiz for Flame Test Lab

What is the correct way to extinguish a Bunsen burner?

• Blow out the flame

• Turn off the gas supply

• Cover it with a cloth

• Pour water on it

Part D is called the -?-

• barrel

• collar

• gas control

• gas inlet

• base

Part D is used for...

• burning the gas

• controlling the amount of natural gas

• controlling the amount of oxygen allowed

• stability

Which part of the Bunsen flame is the hottest?

• A

• B

• C

• D

When you first light a Bunsen burner, the flame should be:

• Yellow

• Blue

• Either

How do electrons become excited?

• Emitting light/energy

• Absorbing light/energy

• Going down an orbital/energy level

• Going up an orbital/energy level

What particles in the heated compounds are responsible for the production of the colored light?

• proton

• neutron

• electron

• proton and neutron

What form of energy is emitted when an excited electron returns to the ground state?

• Photon (light)

• Heat

• Kinetic

• Potential

The two big circles in the picture represent

• Energy levels

• The nucleus

• Planets

• Boundaries of the atom

Tags

NGSS.MS-PS1-1

When an atom _______________ _____________, its electrons can use this energy to move to a higher energy level.

• releases energy

• absorbs energy

• emits radiation

• gets rid

Tags

NGSS.HS-PS1-2