Download Properties, Symbols and Elements

Chemical Olympiad 2014
Tie #2 2014
1
Tie #2
South Wales West Local Section
Round 1
INDIVIDUAL ROUND
Read & Learn the Given Reduced Periodic Table
You are given an summary form of the Periodic Table and two minutes in which to try and
remember the relevant points. The Table will then be collected and questions are
specifically related to the content of the Table you have just seen.
CAPTAIN WHO WON THE TOSS TO DECIDE WHICH TEAM GOES FIRST
YEAR
8/9
1
2
YEAR
9
YEAR
10
Give the name of the element Atomic No.
2 in the Table
HELIUM
Give the name of the element Atomic No 1
in the Table
HYDROGEN
1
Give the name of one of the elements in the
Group below He in the given Table
2
Give the name of one of the elements in the
Group below F in the given Table.
1
What element lies below Be in the Table.
(Clue: it burns very brightly in air)
2 What element lies to the left of F in the
Table, and has At. No. 8
YEAR
11
1
(a) Choose an element from the Transition
row and give (b) a typical commercial use of
that element.
2
(a) Choose another element from the
Transition row and give (b) a typical
commercial use of that element.
Read out the scores
Neon,Argon,Krypton,
Xenon or Radon
Chlorine, Bromine or
Iodine
MAGNESIUM
OXYGEN
Many answers possible.
QM to decide on quality
of answers.
Many answers possible.
QM to decide on quality
of answers.
Chemical Olympiad 2014
Tie #2 2014
2
Tie #2
South Wales West Local Section
Round 2
BUZZER ROUND
CHEMICAL CHANGES
YEAR
8/9
YEAR
9
Which of the following involves a chemical reaction?
(a) freezing water
(b) toasting bread
(c) crushing apples
(d) magnetising iron
Which of these results in chemical change?
(a) mixing iron and sulphur powders
(b) adding lime to vinegar
(c) adding milk to tea
(d) mixing salt with water
Energy is needed to make a mixture of methane and
YEAR oxygen react. The mixture explodes when a lighted
10
splint is applied. What type of energy is supplied by
the splint:
TOASTING
BREAD
ADDING
LIME TO
VINEGAR
ACTIVATION
ENERGY
(a) catalyst energy
(b) activation energy
(c) potential energy or
(d) renewable energy
When ammonium nitrate is added to water an
YEAR endothermic process occurs and….
11
(a) temperature falls or
(b) heat is given out or
(c) surroundings get hotter, or
(d) temperature rises.
Read out the scores
TEMPERATURE
FALLS
Tie #2 2014
Chemical Olympiad 2014
3
Tie #2
South Wales West Local Section
Round 3
Team Progression Round
This is a team round and written answers will be received by the question
master from the captain of each team. Each team can go on with no penalties
until they have the correct answer.
Clue 1
It is a substance involved in photosynthesis.
Clue 2
It could be described as a covalent hydride of a non-metal.
( 6 points)
Clue 3
It is the essential reactant in the hydrolysis of fats to fatty acids, proteins to
amino acids, and polysaccharides to monosacharides.
(4 points)
Clue 4
It releases two gases on electrolysis, and exists on Earth in the three states of solid,
liquid, and gas
(2 points)
Clue 5
Approximately 66% of the human body, 75% of the human brain is composed of
this substance
(1 point)
Answer
WATER
Chemical Olympiad 2014
Tie #2 2014
4
Tie #2
South Wales West Local Section
Round 4
INDIVIDUAL ROUND
Chemistry in the Pharmacy
CAPTAIN WHO LOST THE TOSS TO DECIDE WHICH TEAM GOES FIRST
YEAR
8/9
1
2
YEAR
9
YEAR
10
What painkiller whose name starts with P
can be bought over the counter.
PARACETAMOL
(PANADOL)
What painkiller whose name starts with A
can be bought over the counter.
ASPIRIN
1
What type of drug would the doctor obtain
from the hospital pharmacy to put you to
sleep before an operation.
2
What type of drug is prescribed in capsules or
tablets to counteract bacterial infections.
1
What drug is prescribed for rheumatism, but is
mis-used as a performance drug by athletes.
2 Very acute pain is often controlled by an
injection of a drug obtained from the Opium
Poppy
YEAR
11
1
Pharmacies now sell a wide variey of hair –
styling kits. What chemical is used to produce
a blonde effect?
2
Disinfectants often contain phenols. What
type of organic compound is a phenol?
Read out the scores
ANAESTHETIC
ANTIBIOTICS (or
PENICILLINS)
STEROIDS
MORPHINE
PEROXIDE
Aromatic alcohol?
OH attached to Benzene
Ring?
Carbolic acid?
Chemical Olympiad 2014
Tie #2 2014
5
Tie #2
South Wales West Local Section
ROUND 5
BUZZER ROUND
A ‘BLOCKBUSTER’ ROUND
In each case the answer is one word starting with the letter ‘N’
YEAR What ‘N’ is a tough and elastic synthetic fibre?
8/9
NYLON
Oxides of this ‘N’element cause acid rain, while
YEAR another is used as a dentist’s anaesthetic gas.
9
NITROGEN
What ‘N’ is a silvery metal often used with silver
YEAR in electroplating.
10
NICKEL
YEAR What ‘N’ is an addictive alkaloid used in
e-cigarettes.
11
Read out the Scores
NICOTINE
Chemical Olympiad 2014
Tie #2 2014
6
Tie #2
South Wales West Local Section
ROUND 6
INDIVIDUAL ROUND
Who wants to be a millionaire?
The idea comes from the TV programme, but there are no cash prizes to be won! You will be
asked a question and given 4 possible answers, only one of which is correct. For a correct
answer you get 2 points. If you have doubts, you may go 50:50 or ask a friend (any
specified individual in your team) in which case a correct answer wins only 1 point.
If a wrong answer is given, the question passes to the opposing team who will NOT be
allowed a life line, but will be given one point for a correct answer.
CAPTAIN WHO WON THE TOSS TO DECIDE WHICH TEAM GOES FIRST
YEAR
1
Which of the following is not a gas at standard
temperature and pressure?
OXYGEN
8/9
CHLORINE
NITROGEN
Which one of the following is not a chemical element?
2
YEAR
9
1
Ca
Ag
Pb
Sh
or Sh
What test could be used on a test tube full of oxygen to
show that it was really oxygen?
(a) Burns with a pop
(b) Relights a glowing splint
(c) Extinguishes a lighted splint
(d) Lime water turns milky
2
MAGNESIUM
MAGNESIUM
Which is not the definition of a state of matter?
Solid
Emulsion
Liquid
Gas
(b) Relights a glowing
splint
Emulsion
Chemical Olympiad 2014
Tie #2 2014
7
Tie #2
South Wales West Local Section
Round 6 continued
YEAR
10
1
2
The mass number of an atom gives the……
(a) Number of protons in the nucleus
(b) Number of protons + neutrons in the nucleus
(c) Number of electrons in the outer energy level
(d) Number of protons + electrons
Oil floats on water, the most accurate reason for this is
because……….
(a) Oil is less dense than water.
(b) Oil is immiscible in water
(c) Oil is both less dense and immiscible in water
(d) Water is heavier than oil
YEAR
11
1
How many bonds are present in a molecule of methane,
and what type of bonding is it?
(a) 3 and covalent
(b) 4 and ionic
(c) 4 and covalent
(d) 8 and covalent
(b) Number of
protons +
neutrons in the
nucleus
(c)
Oil is both less
dense and
immiscible in
water
(c) 4 and covalent
Noble gases are chemically inert because:2
(a) They have too many electrons in their outer shell
(b) They have too few electrons in their outer shell
(c) There is a stable arrangement of electrons in shells
(d) They have no electrons
READ OUT THE SCORES
Stable
arrangement of
electrons in shells
Chemical Olympiad 2014
Tie #2 2014
8
Tie #2
South Wales West Local Section
Round 7
INDIVIDUAL ROUND
Acids and Bases
CAPTAIN WHO LOST THE TOSS TO DECIDE WHICH TEAM GOES FIRST
YEAR
8/9
1
Which of the following substances contain an acid?
(a) an orange
2
(b) distilled water (c) washing powder
Which of the following substances contain a base?
(a) washing soda
YEAR
9
1
1
(b) 5
(c) 7
(b) 5
(c) 7
We can react an acid and a base together to produce a salt.
What is the correct name for this type of reaction. Is it
(a) combustion (b) oxidation or (c) neutralisation
(a) oxygen
1
(c)
neutralisation
(b) hydrogen
(b) hydrogen or (c) carbon dioxide
Which one of the following statements is true?
(a) A strong acid has a high pH number
2
7
(d) 14
2 Salts can be made by reacting metals with acids. What
gas is given off in this reaction? Is it
YEAR
11
14
(d) 14
Which of the following pH numbers indicates a neutral substance?
(a)1
YEAR
10
(c) vinegar
(a) washing
soda
Which of the following pH numbers indicates a strong base?
(a) 1
2
(b) Coca Cola
(a) an orange
(b) A strong acid is partially ionised in water or
(c) A strong acid is 100% ionised in water
When an acid and base react, salt and water are formed. Pick
the correct salt produced when dilute ammonium reacts with
nitric acid
(a) ammonium chloride (b) ammonium sulphate
or (c) ammonium nitrate
(c) 100%
ionised
(c)
ammonium
nitrate
Chemical Olympiad 2014
Tie #2 2014
9
Tie #2
South Wales West Local Section
Read out the scores
Round 8
BUZZER ROUND
PROPERTIES, SYMBOLS AND ELEMENTS
NAME THE ELEMENT AS AN ANSWER
EACH QUESTION CARRIES TWO POINTS.
In addition there is a challenging question which carries one bonus point.
The winner of the initial two points may confer with his team to answer it..
YEAR
8/9
YEAR
9
YEAR
10
YEAR
11
Its purity is measured in carats, its symbol is Au. What is it?
GOLD
………………………………………………………………………
………………..
(Bonus to winning team who can confer, for 1 point
–give one chemical property of gold)
Unreactive to
acid
It is added to water to kill dangerous bacteria. Its symbol is Cl
CHLORINE
……………………………………………………………………….
………………...
(Bonus to winning team who can confer, for 1 point
–how many isotopes does chlorine have?)
TWO
It exists in two allotropic forms – red and white. Its symbol is P
PHOSPHORUS
……………………………………………………………………….
…………………
(Bonus to winning team who can confer, for 1 point
– in what form is phosphorus used as fertiliser)
Phosphate
It is an artificial radioactive element produced in nuclear reactors.
Its symbol is Pu.
PLUTONIUM
……………………………………………………………………….
………………..
(Bonus to winning team who can confer, for 1 point
–what main type of radiation would be produced by
a radioactive isotope of plutonium?)
α – radiation
/particles
Read out the scores
Tie #2 2014
Chemical Olympiad 2014
10
Tie #2
South Wales West Local Section
Tie Breaker - All hands on the Buzzer
Which alloy consists of copper and tin and gives its name to a period
of time before the Iron Age?
BRONZE