CQ8) Hello! Please help me answer this one. Please refer to the given picture/s below for the questions. Please read the instructions and directions very carefully. Double and triple check your answers, previous tutors got it wrong. NOTE: Type only your answers. Please do not handwritten your answers. Make sure your formulas, solutions and answers' format are all correct. Answer all the questions, please copy the format in the given picture in answering this!
(CQ8)
Hello! Please help me answer this one. Please refer to the given picture/s below for the questions. Please read the instructions and directions very carefully. Double and triple check your answers, previous tutors got it wrong.
NOTE: Type only your answers. Please do not handwritten your answers. Make sure your formulas, solutions and answers' format are all correct.
Answer all the questions, please copy the format in the given picture in answering this!
![Learning Task 1
Write TRUE if the statement is correct and FALSE if the statement is wrong.
1. Iron will rust if only oxygen, but no water, is present.
2. Reduction occurs at the cathode in an electrical cell.
3.
Galvanic cells use chemical reactions to produce electricity.
4. Electroplating is commonly used to improve the appearance of metals or to prevent corrosion.
5. Tarnishing of silverware and greening of copper, bronze and brass involves electrochemical process.
Learning Task 2
Fill in the blanks. Supply the correct word from the word bank.
oxygen
alloy
chromium
corrodes
sacrificial
first
flake
stainless water
less oxidation oxide
zinc oil
paint
reactive
rusting
and
Iron or steel
to form an iron
reaction. Steel (an
faster than most other transition metals and readily does so in the presence of both
Iron corrosion is called
and the chemical change with oxygen is called an
of iron) and iron can be protected by
which provides a barrier between the
machines can be protected by a water repellent_
or grease layer.
metal. This is called
protection. By
you can make a non-rusting alloy called
steel. Coating iron or steel.
metal
no of you on to a more
with air or water. Moving parts on i
corrosion can be prevented by
mixing iron with other metals such as
layer is called galvanising. The zinc preferentially corrodes first to form a zinc oxide layer that doesn't
reactive metal is attached, the iron then rusts
as it becomes the more
a
_metal.
off. However, if a.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F92a0eb1b-c8e1-49c9-9609-54c6a81f749c%2F3f501be8-0cef-4e30-ad24-39f5c73c4686%2Foqxd3n4_processed.jpeg&w=3840&q=75)
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