ZXTape! 0Created with Ramsoft MakeTZXCHEMISTRY EEgG ""  0  400 7:0: "" !chemistry @ & @?p|@q""@qϾ>0 @! " 0"((0`qǀ! BA"qǀ`D((B " " D"p" "r/<" `0< ``D"<B (* !@ "" x" ! () @0oAq"!po@@qR(@08"!!p@1?pp?ppppqpppp?pp?pp8pppp?pp?pp8?pp?pppppqpp8?pp?pppppqppp?pp?pppppqpppppppqpppppppqpppp|88|@@@9<  `@DEPQ@@@@EB @DDA@X8y18/5:0:2+x,1;t$(r(x)) Cx He=0:d=0 MEx=1a:2+x,1;7;2;1;t$(r(x)) Wm="R"Ŧ="r"e=e+1:r$(e)=t$(r(x)):6+e,11 ;r$(e):2+x,1;t$(r(x)):870f \m="P"Ŧ="p"d=d+1:p$(d)=t$(r(x)):6+d,21;p$(d):2+x,1;t$(r(x)):870f a 855W fy=110 :y:x k0y=1620:y,0;6;S$:y p918,2;2;"CORRECT ANSWERS WILL FLASH" u y=1e:x=16 Cr$(y)=i$(x)6+y,11 ;7;2;1;r$(y) x y  y=1d:x=16 Ip$(y)=j$(x)6+y,21;7;2;1;p$(y)+" " x y 6:0 5:250  /5:y=813 :y,0;S$:y  5000  5250 a=0:b=0  x=1r  5120 ni$(x)<60<Ưi$(x)>4918,it;2;"*":a=a+1:b=a:t$(a)=i$(x):t(a)=it:980 -8,it;0;i$(x)(1i(x));s$ x !10 ,15;0;""  x=1s  5180< kj$(x)<60<Ưj$(x)>49112 ,jt;2;"*":a=a+1:t$(a)=j$(x):t(a)=jt:1010 .12 ,jt;0;j$(x)(1j(x));s$ x a=01035   6  x=1a !xb8,t(x);1;"*" "x>b12 ,t(x);1;"*"  19,2;"NOW BALANCE THE EQUATION":20,0;"(If already balanced press b)":21,4;2;"Enter number or 'b'"  m$=  m$=""1036  a=01045  1055 m$="b"10753  1050 1,-10 :1035  'm$=t$(x)(11)1060$  1070. $=xb8,t(x);5;0;t$(x)(11) %>x>b12 ,t(x);5;0;t$(x)(11) &9y=1518:v=031:y,v;" ":v:y 'x ) 10753 .1,-10 /m$=:m$=""1071/ 0 1055 30y=1921:y,0;6;S$:y 4f19,4;2;"PRESS 'n' FOR NEXT ONE":21,6;0;"PRESS 'm' FOR MENU" 5K$=:K$=""10775 6K$="n"K$="N":p 7&K$="m"K$="M"p=10 :410 8519,4;0;"PRESS ANY KEY FOR MENU" :K$=:K$=""1082: = 410 procin gron=0 w$="" hgron=1q$=15:q$=13 :gron=0:6,12 ;6;2;"********" q$=:q$=""4020 2:5 ^q$=12 Ʊw$>019,w$+10 ;" ":w$=w$(1̱w$-1):4075 q$=13 4080 Wq$=15gron=16,12 ;6;2;"********":4015 \q$=15gron=0gron=1:6,12 ;1;"GRAPHICS":4020 )gron=1q$"?"q$=(q$+47/) <w$<10 w$=w$+q$:19,w$+10 ;0;q$ #v=110 :v:4020  # 0 $ procread 3(9000(#+10 *c(p)) 8x=16:i$(x):x Bx=16:j$(x):x L  procdata 4r=6:s=6:a=0:x=16 rq=81-1:i$(x)(1q)+" "i$(x)(1q+1)i(x)=q+1:q=1:5016 i(x)=1 q  i$(x)="0 "r=r-1 -i$(x)<60<Ưi$(x)>47/5050 %a=a+1:t$(a)=i$(x):t(a)=i(x) x x=16 rq=81-1:j$(x)(1q)+" "j$(x)(1q+1)j(x)=q+1:q=1:5066 j(x)=1 q  j$(x)="0 "s=s-1 -j$(x)<60<Ưj$(x)>47/5100 %a=a+1:t$(a)=j$(x):t(a)=j(x) x   procreact  x=1it=rcentre 'x1it=it+i(x-1)+3 (i$(x)<60<Ưi$(x)>491s$="" #x=15165- (Li$(x-1)<60<Ưi$(x-1)>491it=it-3:51680 -xrs$=" + " 0 x=rs$="" 2 < procprod Fx=1jt=pcentre K'x1jt=jt+j(x-1)+3 Z(j$(x)<60<Ưj$(x)>491s$="" _x=15225i dLj$(x-1)<60<Ưj$(x-1)>491jt=jt-3:5228l ixss$=" + " l x=ss$="" n  proccentre it=0:jt=0  x=1r it=it+i(x)+3 0i$(x)<60<Ưi$(x)>47/it=it-2 x )rcentre=15-((it-3)/2)  x=1s jt=jt+j(x)+3 0j$(x)<60<Ưj$(x)>47/jt=jt-2 x )pcentre=15-((jt-3)/2)  pprocgraphics z.y=06:y,0;6;s$:y o6:2:2,2;"graphics - when sign flashes":4,3;"a = s = d = " My=066:y,0;"********************************":y @x=03131:y=15:y,x;"*":y:x  #2?"HSO","2","NaOH","0","0","0","NaSO","2","HO","0","0","0" #"Cu","2","HSO","0","0","0","CuSO","2","HO","SO","0","0" #P?"2","HCl","CaCO","0","0","0","CaCl","HO","CO","0","0","0" #Z?"AlO","2","NaOH","0","0","0","2","NaAlO","HO","0","0","0" #d;"Zn","CuSO","0","0","0","0","ZnSO","Cu","0","0","0","0" #nA"NaNO","HSO","0","0","0","0","NaHSO","HNO","0","0","0","0" #x="2","Pb(NO)","0","0","0","0","2","PbO","4","NO","O","0" #>"MnO","4","HCl","0","0","0","2","HO","MnCl","Cl","0","0" #@"Cu","4","HNO","0","0","0","Cu(NO)","2","NO","2","HO","0" #C"FeCl","3","NHOH","0","0","0","Fe(OH)","3","NHCl","0","0","0" #7"2","HS","SO","0","0","0","2","HO","3","S","0","0" #6"2","Mg","CO","0","0","0","2","MgO","C","0","0","0" #C"ZnSO","2","NaOH","0","0","0","Zn(OH)","NaSO","0","0","0","0" #B"Zn(OH)","2","NaOH","0","0","0","NaZnO","2","HO","0","0","0" #C"2","NHCl","Ca(OH)","0","0","0","CaCl","2","NH","2","HO","0" #="Ca","2","HNO","0","0","0","Ca(NO)","H","0","0","0","0" #8"2","ZnS","3","O","0","0","2","ZnO","2","SO","0","0" #<"S","6","HNO","0","0","0","HSO","2","HO","6","NO","0" #="2","Ca(NO)","0","0","0","0","2","CaO","4","NO","O","0" #?"2","NaOH","Cl","0","0","0","NaClO","NaCl","HO","0","0","0" $@"6","NaOH","3","Cl","0","0","NaClO","5","NaCl","3","HO","0" $9"CaCO","0","0","0","0","0","CaO","CO","0","0","0","0" $E"Pb(NO)","NaCO","0","0","0","0","PbCO","2","NaNO","0","0","0" $"A"CaCl","NaCO","0","0","0","0","2","NaCl","CaCO","0","0","0" $,?"CaCl","HSO","0","0","0","0","CaSO","2","HCl","0","0","0" $66"2","Mg","SO","0","0","0","2","MgO","S","0","0","0" $@9"3","Mg","Al","0","0","0","2","Al","3","MgO","0","0" $J9"Zn","2","HCl","0","0","0","ZnCl","H","0","0","0","0" $T?"2","Fe","3","HSO","0","0","Fe(SO)","3","H","0","0","0" $^9"3","Fe","4","HO","0","0","FeO","4","H","0","0","0" $h="2","FeSO","0","0","0","0","FeO","SO","SO","0","0","0" $r;"FeS","2","HCl","0","0","0","FeCl","HS","0","0","0","0" $|A"FeO","8","HCl","0","0","0","FeCl","2","FeCl","4","HO","0" $?"PbO","2","HNO","0","0","0","Pb(NO)","HO","0","0","0","0" $>"PbO","2","NaOH","0","0","0","NaPbO","HO","0","0","0","0" $A"Pb(NO)","2","HCl","0","0","0","PbCl","2","HNO","0","0","0" $>"PbO","4","HCl","0","0","0","PbCl","Cl","2","HO","0","0" $?"3","Cu","8","HNO","0","0","3","Cu(NO)","2","NO","4","H" $="2","Cu(NO)","0","0","0","0","2","CuO","4","NO","O","0" $A"Ca(HCO)","0","0","0","0","0","CaCO","CO","HO","0","0","0" $E"Ca(HCO)","Ca(OH)","0","0","0","0","2","CaCO","2","HO","0","0" $C"NaSO","HSO","0","0","0","0","NaSO","SO","HO","0","0","0" $9"2","NH","3","CuO","0","0","3","Cu","3","HO","N","0" $7"4","NH","5","O","0","0","4","NO","6","HO","0","0" $:"8","NH","3","Cl","0","0","N","6","NHCl","0","0","0" $6"2","P","3","Cl","0","0","2","PCl","0","0","0","0" %9"Br","2","NaI","0","0","0","2","NaBr","I","0","0","0" ' 0 'Ustkend=23653e\+256*23654f\:"form"23552\,stkend-23500[: tken9999' form 7\ \74v deduce 44Q6 -7:0:7:0:0 "23785",ç:"23659",1: messages/instructions  ( 2 < F P Z63000:7 d"" n x '=SAVEing instructions RUN 9999  '""23785","255":"deduce"ʰ"1": gdeduce \$# # <@T''8cnc\\\c\ccc cdd\3fX![!@P!!88W K SR P 10 23659k\,0 e205,124|,0,59;,59;,225,1,15,0,9 ,235,42*,61=,92\,115s,35#,114r,201,59;,59;,205,142,2,123{,254,255,32 ,248,58:,58:,92\,254,255,40(,33!,254,7,40(,29,254,8,40(,25,60<,502,129,92\,253,546,0,255,33!,14,39',34",66B,92\,175,502,68D,92\,253,203,1,254,195,125},27,513,513,195,3,19,205,124|,0,59;,59;,225,1,15,0,9 ,235,42*,61=,92\,115s,35#,114r,201,118v,205,142,2,123{,254,255,32 ,248,58:,58:,92\,254,12 ,40(,10 ,254,16,40(,6,254,20,40(,2,24,25,60<,502,129,92\,253,546,0,255,33!,14,39',34",66B,92\,33!,0,0,34",68D,92\,59;,59;,195,125},27,195,3,19,0,205,142,2,123{ &g=6300163150:a:g,a:g 63074b #23659k\,2 -/0:7:7:0:0: 2&1;"PLEASE LEAVE TAPE RUNNING" Z 7 d"" n '<2,-30:0:or any routine for errors 'nstkend=23653e\+256*23654f\:"deduce"23552\,stkend-23500[:60000`,133: tkenc9999' deduce \\4 )e deduce M\ M# # <@T''8˨u\\\˨\רܨȨM\3fX![!@P!!88W K SR Pg23561 \,255:23562 \,255:23658j\,0:(60000`)1330 7:7:0:0:0::1;10 ,10 ;"STOP THE TAPE":12 ,8;"THEN PRESS A KEY"; =""3  x=02:"a"+x,00000000:x:"a"+3,00011000:"a"+4,00100100$:"a"+5,00001000:"a"+6,00010000:"a"+7,00111100< x=02:"s"+x,00000000:x:"s"+3,00011000:"s"+4,00100100$:"s"+5,00001000:"s"+6,00100100$:"s"+7,00011000 x=02:"d"+x,00000000:x:"d"+3,00001000:"d"+4,00011000:"d"+5,00101000(:"d"+6,00111100<:"d"+7,00001000 x=02:"f"+x,00000000:x:"f"+3,00011100:"f"+4,00010000:"f"+5,00011000:"f"+6,00000100:"f"+7,00011000 x=02:"g"+x,00000000:x:"g"+3,00001000:"g"+4,00010000:"g"+5,001110008:"g"+6,00100100$:"g"+7,00011000 x=02:"h"+x,00000000:x:"h"+3,00011100:"h"+4,00000100:"h"+5,00001000:"h"+6,00010000:"h"+7,00010000 x=02:"j"+x,00000000:x:"j"+3,00011000:"j"+4,00100100$:"j"+5,00011000:"j"+6,00100100$:"j"+7,00011000 ( 1200 2"n(6):s$(32 ):s$=" " 7n(1)=(*sel)+ch <a=26 An(a)=(*sel)+ch Fb=1a-1 K"n(b)=n(a)b=a-1:65A Pb:a Qi=(*3) Rp=(*3)+5 Si=2p=582R T i:i:p Ua=16 Z(600X+10 *n(a)) \a$,f$ dt=15 i n390:150 xt }x$=:x$=""125} a E21,3;i+1;1;"FOR NEW SELECTION PRESS 's'" x$=:x$"s"x$"S"135 x$=:x$=""140 1340<:557 procclue [14,8;"ANSWER OR CLUE ?":18,5;1;"FOR CLUE PRESS 'ENTER'" 5000:x$=w$ x$=a$k=0305:.05|L,k:k:14,0;s$:18,0;s$:14,10 ;"WELL DONE":260:21,0;s$:21,3;1;"FOR NEXT ONE PRESS A KEY":t=5:250 t=514,0;s$:18,0;s$:14,6;"CORRECT ANSWER IS :":16,16-(.5*a$);a$:260:21,0;s$:21,3;1;"FOR NEXT ONE PRESS A KEY"   procform 2:150  &y=021:y,0;s$:y  1:2,2;"graphics - when sign flashes":4,2;"a = s = d = f = ":6,6;"g = h = j = "  y=088:y,0;"********************************":y:y=17:y,0;"*":y,31;"*":y 121,7;"For help press '?'":0 Q15,5;"Enter the formula of":17,16-(.5*a$);a$ "Rstart=((31-f$)/2):r=1̱f$:19,start+r-1;"-":r 'gron=0 ,r=1̱f$ 1`gron=1x$=15:x$=13 :gron=0:21,24;s$(18) 6x$=:x$=""3106 72:5 8Mx$=15gron=18,12 ;1;"********":3051 ;[x$=15gron=0gron=1:8,12 ;1;"GRAPHICS":3106 >)gron=1x$"?"x$=(x$+47/) @2(x$="?"x$=f$(rr))1,0:3051 J9.3,30:19,start+r-1;f$(rr):r T  procdisp q$:y=1 q=q$ .q26y+2,3;q$:470 x=261-1 [q$(xx)=" "y+2,3;q$(1x):y=y+1:q$=q$(x+1q):x=1 x  410  Xdata bw"anhydrous copper sulphate","CuSO","A white solid which gives a blue solution in water","The aqueous solution gives a gelatinous precipitate with NaOH","Zinc dust displaces a pinkish-brown solid from the aqueous solution","The aqueous solution gives a deep blue colour with ammonia","When the solid is moistened with HCl solution it gives a green colour in the flame test" l"iron (II) ammonium sulphate","Fe(NH)(SO)","A pale green solid which is soluble in water","The aqueous solution is turned yellow-brown by hydrogen peroxide","When heated with NaOH solution it evolves a gas which turns red litmus blue","The aqueous solution gives a white precipitate with barium chloride solution","The aqueous solution decolourises acidified potassium permanganate solution" vm"zinc","Zn","A grey solid which reacts with HCl solution with the liberation of a gas","The liberated gas is inflammable and is explosive when mixed with air","The resulting solution gives a white precipitate with NaOH","Addition of further NaOH dissolves the precipitate","An acid solution of the solid discharges the solid on the addition of powdered aluminium"  "sodium chloride","NaCl","A white crystalline solid which liberates a colourless gas on reaction with concentrated sulphuric acid","The liberated gas fumes in moist air and turns moist blue litmus paper red","If the reaction mixture is heated with manganese dioxide a pungent gas is formed which bleaches moist litmus paper","An aqueous solution of the solid gives a flocculent white precipitate with silver nitrate solution","When the solid is moistened with acid it gives a bright yellow colouration in the flame test" h"sulphur","S","A yellow solid which gives a pungent odour when burned in air","The solid reacts with hot concentrated sulphuric acid to generate a gas with the same pungent odour","The gas decolourises potassium permanganate","The gas turns lime water milky","If the gas is passed into hydrogen peroxide solution the resulting solution turns blue litmus red" W"iron (II) sulphide","FeS","A black solid which produces a colourless gas on reaction with hydrochloric acid","The resulting solution decolourises acidified potassium permanganate","The gas has an odour of bad eggs","The gas blackens lead ethanoate paper","The oxidised solution gives a deep blue colour with potassium ferrocyanide solution" x"calcium carbonate","CaCO","A white solid which is insoluble in water","The heated solid evolves a gas which turns lime water milky","The residual solid reacts exothermally with water to give a solution which turns milky with carbon dioxide","The original solid appears not to react with dilute sulphuric acid","The original solid effervesces with dilute hydrochloric acid" "potassium nitrate","KNO","Probably the most soluble of all salts","When heated, it melts and evolves oxygen","It gives a positive brown ring test","It gives a lilac colour in the flame test","The flame looks red when viewed through blue glass" u"silver nitrate","AgNO","A solution of this substance gives a brown-black precipitate on addition of sodium hydroxide","The precipitate can be redissolved on the addition of nitric acid","The addition of sodium bromide solution to this solution gives a cream coloured precipitate","When the solid is heated a brown gas is evolved","A silver coloured residue is produced" "zinc sulphate","ZnSO","This is a soluble salt of a transition metal","Addition of barium chloride solution produces a white precipitate","Addition to the solution of sodium carbonate solution gives rise to a precipitate","Addition of sodium hydroxide solution to a solution of this salt gives a white precipitate","Addition of further sodium hydroxide redissolves the precipitate" "ammonia","NH","This gas is produced by heating an ammonium salt with sodium hydroxide","It may be decomposed to yield two different gases","Both of the resultant gases are elements","The initial gas is sparingly soluble in water","The resulting solution turns red litmus blue" 0"iodine","I","A brown solid","It releases a vapour which can impair vision","It is sparingly soluble in water but more soluble in the presence of halide ions","A solution of this substance is decolourised by reducing agents","A solution of the substance turns black on the addition of starch solution" "sodium thiosulphate","NaSO","This white solid is soluble in water","The resulting solution decolourises iodine solution","It is used in photography","It has a high sulphur content","The only other non-metal component is oxygen" "iron (II) nitrate","Fe(NO)","A pale green crystalline solid","On prolonged storage it turns brownish-yellow","Addition of sodium hydroxide solution to a solution of the original substance causes the production of a pale green flocculent precipitate","A solution of the substance gives a positive result in the brown ring test","A deep blue colour is produced with potassium ferricyanide solution" "carbon","C","This element has more than one physical form","Its crystalline structure is one of the hardest substances known","Its non- crystalline form is one of the softest substances known","At high temperatures it can be converted to a gas","The gas turns lime water milky"  "dinitrogen monoxide","NO","This gas will relight a glowing splint","It is produced by heating ammonium nitrate","It is sparingly soluble in water","The resulting solution is neutral to litmus","It is used as an anaesthetic","It is sometimes called 'laughing gas'" "sulphur dioxide","SO","This gas dissolves in water to give a weakly acidic solution","The gas turns moistened dichromate paper green","Potassium permanganate is dEcolourised by it","It has a pungent odour","It is produced by heating concentrated sulphuric acid with copper turnings"  "sodium","Na","One of the most reactive elements","It reacts with oxygen to produce a yellow solid","The yellow solid is a strong oxidising agent","The element reacts violently with water","Controlled reaction with water yields a strongly alakaline solution" "neon","Ne","This belongs to a class of chemicals which are renowned for being unreactive","It is a gas","It is an element with the same number of protons and neutrons","It is in the same period as boron in the periodic table","it is used in advertising signs"  <"ammonium sulphate","(NH)SO","A white crystalline solid which is soluble in water","Sometimes used as 'smelling salts'","A gas is evolved on heating with sodium hydroxide","The gas turns moist red litmus paper blue","When barium chloride is added to a solution of the salt a heavy white precipitate is produced" *9"propene","CH","When this substance is burned in excess air or oxygen the products contain two compounds only","One of the products condenses in the cold to give a colourless liquid","If 64g of oxygen is available for every 42g of the substance, there is a 20% reduction in volume (all volumes being expressed at STP)","If the products are treated with pyrogallol, the volume of gas in the final mixture is further reduced by 25%","If the mixture, after combustion, is treated with lime water the volume of gas collected is only 20% of that of the original mixture" 4"copper (II) oxide","CuO","1.19 of this black solid reacts with 15ml molar sulphuric acid solution","A blue solution is obtained which on careful evaporation yields 3.73g of a blue solid","On more vigorous heating this loses 36% in mass to give a white solid","Complete electrolysis of the blue solution with an inert anode results in the deposition of 0.95g of a pinkish metal on the cathode","The metal reacts with concentrated nitric acid with the evolution of 672ml of a brown gas (corrected to STP)" >"iron","Fe","A grey magnetic solid which increases in mass by approx 38% when heated in air","1.86g of the solid liberates 1.12 litres of hydrogen from dilute hydrochloric acid (corrected to STP)","When heated with 57% of its mass of sulphur, a black residue remains","In the presence of moist aIr it forms a compound which contains 25.2% water","Reaction with dilute sulphuric acid gives a salt heptahydrate with a molecular mass of 277.8" Hp"nitrogen monoxide","NO","A gas produced by the catalytic oxidation of ammonia","1 mole is produced by oxidation of 17g of ammonia","1 mole of the gas is further oxidised by 16g oxygen to yield a brown gas","The brown gas, in the presence of further oxygen, is dissolved in water as a further step in an industrial process","The original gas contains 46.7% nitrogen" R"potassium dichromate","KCrO","An orange solid containing 38% oxygen and 26.6% potassium","An aqueous solution of the substance, acidified with sulphuric acid, is turned green by sulphur dioxide","It oxidises iron (II) sulphate","One of the products contains 73.5% sulphate ion","The molecular mass of the orange solid is 294.2","The orange solid contains a transition element in period 4 of the periodic table" \e"phosphorus","P","This element represents 20% of its main geological source","When this compound is heated it forms a thermally stable derivative containing 24.4% of the element","The sulphide of this element is used in match manufacture","The sulphide contains 43.6% sulphur","The element has two physical forms, one of which has a molecular mass of 124" f"calcium oxide","CaO","This compound is produced by the action of heat on a carbonate","It reacts vigorously with water resulting in an increase of 32.1% in its mass","A solution of the resulting compound absorbs carbon dioxide to give a white precipitate","The resulting precipitate weighs approx 100g for each mole of carbon dioxide absorbed","The action of heat on the precipitate yields the original compound" pM"manganese (IV) oxide","MnO","A black powder which catalyses the liberation of oxygen from potassium chlorate","1 mole of this compound liberates 71g of chlorine from hydrogen chloride","The black powder contains 36.8% oxygen","1 mole contains 32g oxygen","The only other constituent is an element in the first transition period" zm"calcium carbide","CaC","This grey solid reacts vigorously with water to liberate a gas which contains 92.3% carbon","Complete combustion of 1 mole of this gas in oxygen produces 88g carbon dioxide","Complete combustion of 1 litre of the gas (at STP) requires 3.6g oxygen","The original grey solid contains 37.4% carbon","The molecular mass of the solid is 64.1" _"ammonium nitrate","NHNO","This salt decomposes on heating to produce a gas which contains 63.6% nitrogen","The salt contains 35% nitrogen","Heating 4g of the salt with sodium hydroxide solution yields 0.85g of a gas with a nitrogen content of 82.4%","A solution of the salt gives a positive brown ring test","The molecular mass of the salt is 80" "aluminium hydroxide","Al(OH)","When heated this compound loses water to give a white powder which is insoluble in water","Both the original compound and the resulting white powder dissolve in excess sodium hydroxide solution to give a substance which contains 39% oxygen" "The original compound and white powder both react with sulphuric acid to yield the same sulphate","The resulting sulphate has molecular mass 342","All compounds contain a group 3 metal" ."hydrogen chloride","HCl","3.65mg per 100ml solution of this gas has pH value 3","A solution containing 1g of this gas generates approximately 307ml of CO (corrected to STP) from NaCO","Addition of 10ml of 0.05 molar AgNO solution to excess solution of the gas yields 72mg of a white precipitate" "When heated with excess MnO, 5ml of 0.1 molar solution of the gas liberates 35.5 mg of a green gas which bleaches moist litmus paper","163.5mg Zn liberates 5mg hydrogen from a dilute solution of the gas" "water","HO","This is a colourless liquid","It is a poor conductor of electricity","When a small quantity of NaCl is dissolved in the liquid the resulting solution conducts electricity" "965 coulombs of electricity liberates 10mg of hydrogen at the anode","193 coulombs of electricity liberates 16mg of oxygen at the anode" "calcium hydrogen carbonate","CaCO","When 250ml of a molar aqueous solution of this substance is heated, 2.5g of a white insoluble solid is produced","The insoluble solid will liberate 560ml of a gas (corrected to STP) from dilute hydrochloric acid"  "150mg of the original substance will neutralise 18.5ml of 0.1 molar aqueous NaOH solution","150mg of the original substance will neutralise 18.5 ml of 0.1 molar hydrochloric acid with the evolution of CO","The presence of the original substance in water produces 'temporary hardness'" 7:7: ;10 ,6;1;7;"CHEMICAL DEDUCTIONS" 5:250 S:3,0;2;"This is designed to test your powers of deduction" P6,0;1;"The computer will think of a chemical compound" g10 ,0;0;"Your task is to outwit the computer by deducing what it hasselected" j14,0;2;"You are given an initial clue and can ask for a maximum of four others" +21,11 ;2;"PRESS A KEY" i=120:i x$=:x$=""1280  :3,0;1;"When you think you know the answer, type it in lower case letters. Alternatively you can ask for the next clue by pressing the 'ENTER' key" 12 ,0;2;"A wrong answer will automatically summon the next clue":21,11 ;0;"PRESS A KEY":i=120:i =""1296 \:0,0;2;"When the correct answer has beenguessed or revealed by the computer, you will be asked to provide the correct formula.":6,0;1;"Use upper and lower case lettersas you would on paper.":10 ,0;0;"Use graphic keys a,s,d,f,g,h and j for subscript numbers ,,,,, and " J19,0;0;"When you are ready to begin, press a key" #i=120:i (x$=:x$=""1320( <76:6::3,14;2;"MENU" F1:6,1;"1 Non-numerical problems":9 ,1;"2 Numerical problems":12 ,1;"3 Mixed selection": 15,1;"4 Leave program":20,6;2;"Select 1, 2, 3 or 4" Px$=:x$=""1360P Z8x$<491ůx$>5241,0:1360P dx=x$ n'x=1sel=20:ch=1: x(x=2sel=14:ch=20: 'x=3sel=34":ch=1: x=40  procinput w$="" i$=:i$=""5020 i$=" "w$=""5020 ]i$=12 Ʊw$>021,w$-1;" ":w$=w$(1̱w$-1):5075 i$=13 5080 ;w$30w$=w$+i$:21,w$-1;0;i$ #v=110 :v:5020  ' 0 'Wstkend=23653e\+256*23654f\:"deduce"23552\,stkend-23500[: tken٨9999' deduce M\ \ M4