chemistry

1. the table shows some information about the three states of matter.
separation arrangement
1 touching with some particles random slide past each
having spaces between them other at low speed
2 particles are far apart random rapid motion
in straight lines
3 touching with very little regular vibration only
space between the particles
which row is correct?
pop ts
a gas liquid solid
b liquid solid gas
cc liquid gas solid
d solid gas liquid

2 which arrow represents evaporation?
a b
solid _, liquid _, gas
cc d

3 in which states of matter does diffusion occur readily?
a gases and liquids
b_sgases only
c liquids and solids
d solids only

4 which statement about the boxes p, q and r is correct?
p q r
a box p contains two compounds, and box r contains two elements.
b- box p contains two elements, and box q contains a mixture.
c_ box p contains two elements, and box q contains one compound.
d_ box qcontains two compounds, and box r contains a mixture.

5 which information about an element is given by its atomic number?
a_ the number of protons in the nucleus of an atom of an element
b_ the number of particles in the nucleus of an atom of an element
c the relative mass of one atom of an element
d_ the total number of particles in one atom of an element

6 the symbols represent four atoms. the letters used are not the usual atomic symbols.
ne a ae
which atoms are isotopes of the same element?
a wandx b wandyy c xandy d y andz

7 covalent bonds are formed when electrons are ......1...... .
most covalent compounds have ......2...... electrical conductivity.
which words correctly complete gaps 1 and 2?
pf ot ft 2
a shared high
b shared low
cc transferred high
d transferred low

8 which row describes the structure and a use of diamond?
[saws [es
a ionic in cutting tools
b ionic as a lubricant
cc giant covalent in cutting tools
d giant covalent as a lubricant

9 which symbol equation represents the reaction between aqueous sodium hydroxide and dilute
sulfuric acid?
a nazoh + h2so, > 2naso, + h20
b na(oh), + hzso, — na2so, + 2h,0
c 2naoh + h2so, - 2naso, + 2h20
d 2naoh + h,so, + na,so, + 2h,0

10 what is the relative formula mass of magnesium bromide?
a 47 b 82 cc 104 d 184

11 three substances are listed.
1 solid copper
2 aqueous sodium bromide
3 solid lead(ii) bromide
which substances conduct electricity?
a 1,2and3 b tand2only c tand3only d 2and3only

12 hydrogen—oxygen fuel cells can be used to power cars.
which processes produce the fuel of a hydrogen—oxygen fuel cell?
1 the cracking of hydrocarbons
2 the electrolysis of dilute sulfuric acid
3 photosynthesis
4 the electrolysis of molten aluminium oxide
a 1and2 b i1and4 c 2and3 d 3and4

13 molten sodium sulfide, na2s, is electrolysed using inert electrodes.
which row identifies the product at each electrode?
[cathode [anode

a sodium sulfur
b sulfur sodium
cc hydrogen sulfur
d sodium hydrogen

14 the temperature of the water in two beakers, x and y, is measured as 21.5°c.
5g of sodium chloride is dissolved in the water in beaker x. the temperature changes to 18.0°c.
5g of calcium oxide is dissolved in the water in beaker y. the temperature changes to 29.4 °c.
which types of process are occurring in beakers x and y?
p| ox ty
a endothermic endothermic
b endothermic exothermic
cc exothermic endothermic
d exothermic exothermic

15 which process involves a chemical change?
a adding sodium chloride to water
b_ adding magnesium to hydrochloric acid
c heating solid iodine until it turns into a gas
d_ melting lead

16 which two pieces of apparatus are most useful to measure the rate of a reaction in which a gas is
given off?
a accurate balance and gas syringe
b_ accurate balance and thermometer
c gas syringe and stop-watch
d_stop-watch and thermometer

17 reaction 1 and reaction 2 both produce a gas.
the total volume of gas produced in each reaction is measured every minute for 10 minutes.
a graph of the results is shown.
100
90 2
80
70
total volume bo
of gas/cm* =n 4
40
30
20
10
0
012345 6/7 8 910
time/min
which row describes how the rate of reaction changes, if at all, during each reaction?
[easton fast
a the rate is constant the rate decreases after 2 minutes
b the rate increases the rate increases
cc the rate increases the rate decreases after 2 minutes
d the rate is constant the rate increases

18 when a few drops of water are added to a solid, e, the colour changes from blue to pink.
what is e?
a anhydrous cobalt(ii) chloride
b anhydrous copper(ii) sulfate
c hydrated cobalt(ii) chloride
d hydrated copper(ii) sulfate

19 the equation for the reaction of magnesium with copper(ii) oxide is shown.
mg + cuo —+ mgo + cu
which word describes this reaction?
a combustion
b decomposition
c neutralisation
d_ redox

20 compound m contains calcium.
two reactions of m are listed.
e mreacts with dilute hydrochloric acid to form a salt and water only.
e mreacts with aqueous ammonium chloride to form a gas that turns damp red litmus
paper blue.
what is m?
a caoh b ca(oh), c caco; d ca(cos)2

21 the diagram shows one period of the periodic table.
which two elements form acidic oxides?
a beryllium and lithium
b_ carbon and neon
c_ carbon and nitrogen
d nitrogen and neon

22 a student tests four solutions with universal indicator.
which colour identifies the solution containing the greatest concentration of oh” ions?
a red
b_ yellow
c_ green
d_ blue

23 the following steps are done to prepare solid magnesium sulfate.
1 filtration
2 measurement of 20cm* of dilute sulfuric acid using a measuring cylinder
3 evaporation
4 addition of an excess of solid magnesium carbonate to dilute sulfuric acid
what is the correct order for these steps?
a 2545351
b 2>4>1>3
c 452>1>3
d 452>53>-1

24 which statement about the periodic table is correct?
a_ all the metals in the periodic table are transition elements.
b_ the halogens are elements in group | of the periodic table.
c_ the elements become more metallic across a period from group | to group vii.
d_ the periodic table can be used to predict the properties of the elements.

25 zinc is formed when zinc oxide is heated with carbon.
zinc oxide + carbon — zinc + carbon monoxide
which substance is oxidised in this reaction?
a carbon
b_ carbon monoxide
c zinc
d zinc oxide

26 which word equation represents the rusting of iron?
a_ iron + oxygen + water > anhydrous iron(ii) hydroxide
biron + oxygen —> hydrated iron(ii) oxide
c_ iron + oxygen + water > anhydrous iron(iii) hydroxide
d_ iron + oxygen + water — hydrated iron(iii) oxide

27 which option describes the electronic configurations of three different elements from the same
group of the periodic table?
a 2 2,2 2,8,8,2
b 2 2,8 2,8,2
c 2,1 2,8,1 2,8,8,1
d 21 22 2,3

28 which metal forms compounds that can be used to colour glass?
a aluminium
b calcium
c chromium
d_ sodium

29 two properties of element r are listed.

e it is a dark solid at room temperature.
e = itis a diatomic molecule.

where on the periodic table is r placed?

a group!

b~ group vii

c_ group viii

d transition elements

30 four metals, w, x, y and z, are tested with either cold water, steam or both.
the observations are shown.
www reacts slowly with cold water
x reacts rapidly with cold water
¥ does not react with cold water but reacts with steam
z does not react with cold water or steam
what is the order of reactivity of the metals from the least reactive to the most reactive?
least most
reactive reactive
a ww xx y zz
b ww y x z
cc z y x ww
d z y¥ ww xx

31 which statement about the displacement reactions of the halogens is correct?
a __lodine displaces bromine from aqueous sodium bromide.
b_ bromine displaces chlorine from aqueous potassium chloride.
c__lodine displaces chlorine from aqueous potassium chloride.
d_ chlorine displaces bromine from aqueous sodium bromide.

32 which substances in water from natural sources are beneficial to aquatic animals?
1 metal compounds
2 plastics
3 phosphates
4 dissolved oxygen
a iand2 b 1and4 c 2and3 d 3and4

33. what are the products formed when glucose is fermented?
a_ ethanol and carbon dioxide
b_ ethanol and oxygen
c_ ethene and carbon dioxide
d_ ethene and oxygen

35 which statement describes a homologous series?
a_ a family of elements in the same group of the periodic table
ba family of elements with similar chemical properties
ca family of compounds with the same functional group
da family of compounds with similar physical properties

36 what are the properties of aqueous ethanoic acid?
decolourises ’ reacas with turns damp red
aqueous bromine calgiunn cathionate io litmus paper blue
make carbon dioxide
a v v x
b v x v
cc x v x
d x x v

37 four different organic compounds are separated by a fractionating column.
the table shows the boiling points of the compounds.
the diagram shows the position in the fractionating column where they are separated.
boiling point/°c
q 69
r 196
is) 90
t 125
ta fraction 1
ce a ——~» fraction 2
ce a ae —» fraction 3
77 ——~» fraction 4
mixture tttttt
of organic ——»
compounds ye
which row identifies the compound in each fraction?
[| teaton + | tton2 [tracion 8 [acon
a q is) t r
b q t is) r
cc r t is) q
d r is) t q

38 which piece of apparatus is used to measure exactly 21.50 cm* of dilute sulfuric acid?
a beaker
b_burette
c measuring cylinder
d_ volumetric pipette

39 which row shows an advantage and a disadvantage for the stated apparatus used in a titration?

a 25cm? measures can only be used to
volumetric pipette volume accurately measure 25cm? of solution

b 50cm? burette measures can only be used to
volume accurately measure 50cm’ of solution

cc 100 cm® beaker suitable for can only be used to

filling burette fill a 100 cm® burette

d | 250cm* conical flask allows solutions to be not suitable for holding

mixed without spilling volumes less than 250 cm*

40 sample m contains calcium carbonate and sodium nitrate.
the result of adding water to m, stirring and filtering is shown.
no chemical reaction occurs.
¥o carbonate
i sodium nitrate
which terms describe m, calcium carbonate and aqueous sodium nitrate?
calcium aqueous
ee ao
a compound filtrate residue
b compound residue filtrate
cc mixture filtrate residue
d mixture residue filtrate

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