Saturday, June 19, 2010
HEY 4E1!
a really great THANK YOU for coming down and making this BBQ happening!
Few special credits:
1. Qutub Khan : for starting the idea and helping up this event and me a lot
2. Jason Liew : For really persuading so many ppl to come down and have fun.
3. Xie Yuancai King : for willingly come down to seng song today morning... ;D
4. Our Main Chief: YC, Shaikh Muhammad Najib Bahajjaj , Qutub, chris and many more~
and lastly,
5. EVERYONE WHO CAME DOWN!!!
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Also, juz FYI.total BBQ cost is $295.65. [ya i did the math]
Catering- $200
BBQ Pit- $10.70
Seng Song- $75.95
Additional supplies - $9
Total amount collected: $192.00/=
Total amount owed: $20.00/=
Overflow: $85.65/=
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PICs, can Dinah Kam, please upload in class group and tagg everyone., thx ;D
Really had an enjoyable day.., ;D
Hope to ketchup with everyone soon
and please, STAY IN CONTACT PPL!!!
;D
Regards,
Tuesday, February 17, 2009
since there's MT CT after school tmr
there isn't chemistry remedial for those
compulsory ones..thus we
don't have to bring
the chem related books and file
Please hold on to the remedial worksheet
he will go through two weeks later i think
but homework given in class are still to be
handed in on
thurs and friday..~Jiamin
P.S those people who manage to have a glimpse
on this message..pls kindly pass around to the rest
of the 39 peoples in the class..thanks :)
Thursday, January 15, 2009
Quiz on metals (SEC4E:16/01/2009) - Attempt 2
Question 1
Marks: 1/1
What are the products of the reaction between calcium and cold water?
Choose at least one answer.
A. potassium oxide
B. water
C. potassium hydroxide
D. hydrogen
Correct
Marks for this submission: 1/1.
Question 2
Marks: 1/1
Metals are ________________.
Choose at least one answer.
A. ductile
B. malleable
C. strong
D. weak
Correct
Marks for this submission: 1/1.
Question 3
Marks: 1/1
Magnesium is _________ reactive than aluminium.
Choose one answer.
A. less
B. more
Correct
Marks for this submission: 1/1.
Question 4
Marks: 1/1
Which of the following is NOT a method to prevent rusting?
Choose one answer.
A. Coating surface with water
B. Coating surface with oil
C. Coating surface with plastic
D. Painting surface
Correct
Marks for this submission: 1/1.
Question 5
Marks: 1/1
Magnesium can displace calcium from calcium chloride solution.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 6
Marks: 1/1
Lead is ________ reactive than zinc.
Choose one answer.
A. more
B. less
Correct
Marks for this submission: 1/1.
Question 7
Marks: 1/1
Tin is ___________ reactive than lead.
Choose one answer.
A. less
B. more
Correct
Marks for this submission: 1/1.
Question 8
Marks: 1/1
Metals ___________ hydrogen in the series DO NOT react with acids to produce hydrogen gas.
Choose one answer.
A. below
B. above
Correct
Marks for this submission: 1/1.
Question 9
Marks: 1/1
Lead reacts with water to form a hydroxide.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 10
Marks: 1/1
What are the products of the reaction between potassium and cold water?
Choose at least one answer.
A. hydrogen
B. potassium hydroxide
C. water
D. potassium oxide
Correct
Marks for this submission: 1/1.
Question 11
Marks: 1/1
Metals have a dull appearance.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 12
Marks: 1/1
What is/are the condition/s necessary for rusting to occur?
Choose at least one answer.
A. Presence of air
B. Presence of salt
C. Presence of water
Correct
Marks for this submission: 1/1.
Question 13
Marks: 1/1
Sodium is __________ reactive than calcium.
Choose one answer.
A. more
B. less
Correct
Marks for this submission: 1/1.
Question 14
Marks: 1/1
Zinc can displace copper from copper sulphate solution.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 15
Marks: 1/1
ALL metals are ___________ conductors electricity and heat.
Choose one answer.
A. poor
B. good
Correct
Marks for this submission: 1/1.
Question 16
Marks: 0/1
Copper reacts with dilute hydrochloric acid.
Answer:
True False
Correct
Marks for this submission: 1/1. With previous penalties this gives 0/1.
Question 17
Marks: 1/1
What are the products of the reaction between zinc and steam?
Choose at least one answer.
A. water
B. hydrogen
C. zinc hydroxide
D. zinc oxide
Correct
Marks for this submission: 1/1.
Question 18
Marks: 1/1
Metals have ____________ densities because there is very little space between the atoms.
Choose one answer.
A. low
B. high
Correct
Marks for this submission: 1/1.
Question 19
Marks: 1/1
Magnesium reacts with dilute hydrochloric acid to form ______________.
Choose at least one answer.
A. magnesium hydroxide
B. hydrogen
C. magnesium chloride
D. water
Correct
Marks for this submission: 1/1.
Question 20
Marks: 1/1
Alloys are made up of ________________________.
Choose one answer.
A. more than one type of atom
B. only one type of atom
Correct
Marks for this submission: 1/1.
PureChem
