Electrolysis of Water

What is the name of the positive electrode?

• cathode
• anode

What is the name of the negative electrode?

• cathode
• anode

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

The negatively charged ions migrate toward the ________.

• anode
• cathode

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The chemical process to separate water into hydrogen atoms and oxygen atom is called _____________________

• photosynthesis

• electrolysis

• electrosynthesis

• composition

Tags

NGSS.HS-PS3-5

During electrolysis, choose the correct gas is collected in the electrode

• oxygen - positive electrode (anode)

• oxygen - negative electrode (cathode)

• hydrogen - positive electrode (anode)

• hydrogen - negative electrode (cathode)

The presence test for hydrogen that collected in cathode is :

• light up the glowing wooden splinter

• produce a 'pop' sound using burning wooden splinter

• produce a 'pop' sound using glowing wooden splinter

• produce rotten smell using burning wooden splinter

Tags

NGSS.MS-PS1-2

Volume of gas collected in cathode is 2 times more compare to volume of gas collected in anode.

• True

• False

Pure water is good conductor of electricity.

• True

• False

Distilled water should mixed with diluted acid to increase the conductivity of water when doing electrolysis process.

• True

• False

Gas that collected on cathode during electrolysis of water is ______________

• hydrogen

• oxygen

• nitrogen

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5