Chemical Reactions - Corrosion

Whats is corrosion?

Please select CORRECT answer.

• Elecctrochemical process by which a metal returns to its natural state

• The process of eroding or being eroded by wind, water, or other natural agents

What is oxidation?

• A reaction involving oxygen

• A reaction involving non-metals

Rusting is a _____________ process.

• Mechanical

• Chemical

• Physical

What two things cause Iron to Rust ?

• Air and Oxygen

• Oxygen and Water

• Water and Carbon dioxide

• Carbon dioxide and Air

Which of the following metals is very unreactive and unlikely to corrode. 

• Copper
• Gold
• sodium
• Potassium

Galvanizing is a process of:

• Applying a Zinc coating to bare steel

• Washing the body with the phosphate coating

• dipping a body in E-COAT

• Chemically etching primer to steel

To protect iron against corrosion, the most durable metal plating on it, is:

• Zinc plating
• Nickel plating

Is this an example of corrosion?

• Yes
• No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which diagram shows the most favourable conditions for rust to appear on the nail?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-2

two elemants joined together is called an __________

• inget

• element

• alloy

• gem