1981-02-15 — Page 16

郭日僑華

日五十月二年一八九一圈公年十七國民華中 有教經馬

日期星

WAH KIU YAT PO

90

後能

經

華僑馬經

老吉主编

十一角。

,後來者殼粉轉向中場席,因此中楊席亦尊 紫荆大熟不保位置,第二塊太陽謀子大熱陽出,

一能够收到丁財旺之路,公衆席洲前已 五十五元,第二場刼爲大熱門,斑彩四 一加 亦發威,在刚塲新馬賽中,箂成得與大把 第一、二大熱門:榮互見:告東尼頭洛紅

快活谷昨日馬,酸梅然比較弱,但仍然

黑一關冷,派亦算不俗。 界,適嬴毎派五百八十七元一角,开成一 放到路,出入于五元一角冷門,涵嬴搭森林世 ,大丈夫與極之易俱告落黨,安得證策蘇捷由頭

·外开几次站,第四堪媽出門,首次門

久沉的陵鸠利在第五場策雄霸,過廻三海上 | 体,結果由頭帶到尾獲勝,同塲的大熱門島棉

一,跑入罩,成爲熱門客天下,號裏所派七十八 【頭到尾,易獲勝,寄策猛如飛成為大熱門 一,結果却成熱門天下,告菜尼餓松山成大圈,由

·第三場場外彩真照關,第七班馬作短途戰

「掛牌除爲一好地假快」,實際上雄是佔跑愈快的 上外有醫和丽,但中閑隔光訾照,故路塊

昨日九場賽事冷熱參半

摩氏父子連中三元

小告安德魯贏孖寶

第四名:C出口第一(騎師說文就》 勝正一位,而賀勝季軍個半馬似

((EB)

智森利師

铁南廂二蹄須小岩習在电商夫·居徐攜巡南小薇再没策内客 二:陽海舘部新絕外進在 保雨下進石組捲接 由衊側健 滅三八偡獸電單巡師需另而內進持石競影並賽嘅路轉摩芝由內 資料 際

益利出於三州

人、七、海師之內均文對勤友,後之駕師

暴物量五一匹在波閃采失之金一得馬辎堂收徐之第五百

習略習米第之直斯,個位快袋號向房。勝雨業一○第鴦開馬萊○艙。等地鄰顏藍下取急欄入真將賽片苦後受真力 合理廠於八章外開展舶,七寶路障藍之。彈及更內落色,石監次米六內庭。潭之米五報控警彤志向空戲未直與來小,令召到內 海側不說爆時閃師法師場力上童暉够登見收移待:須結之一過場時之之好燒告制告片学外位地能路。玻親在他尾粟都變竅失專

於日新然於伸運洲鄉,雜掠碍够 其燒炭 避今做在活 第閑牌四路第城聯將被後跑其越取,诗察海君觸。 嘗追府政 蹄離一一來越被。後來大須警節包師魏今銀得在忘在 之班,畫會處至 競容舉欽齊夠畢面警告 最斑後必委召至又固位次將告在塔徐赛到城有骨料美

(#)

苴名

告東尼·

無顧位@心寶貝搭值新自力量彩:八十一元一騎插徐雨石之全殺前面 位置派彩:八首名 十一元三角八大名)十娘(大過路點特質。

一 角(三名)十大元五角

獨派彩,十二八角 位置派彩:一首名》七元一(次)九元

一分四十一秒二段廿四秒五 中渊。廿八秒三,五十二秒三,一分十六秒八, 第四場,第四班,一六五〇米,出馬十匹, 江雄橫山指四猛四乘勝:七十八元。

張氣派彩:八十五元1年

文名: : "O森林世界

(WK) (EN)

·冠軍勝亞軍三馬位,亞季軍一馬頭 第四名:蔡妮(綺師聶奇

·

(BE),

安慰秀

,來

二元三角(三十元五角

薇派彩首名)元五角一次名心十

一角

·强崴位仍森林世界搭圆掎派彩;五百八十

來段廿二秒六

快速:十九秒八,四十七秒止,一分十三秒, 一分卅八秒九,兩分〇九秒九,兩分廿五秒五:一位.

··第一班,1100米,出馬五匹,做 油酸鞬因健康鬨對退出,實出賽者於九二七

中孖嫩,告東尼中一口熱門孖號,太皇于與極 山、西粹之寶中孖寶,安以盡、西洋之資 飛得落第,佐治摩亞亦以氣撈顾,雅達亦以私 冠軍,四埵亞軍一季軍,他有一塲第七班的

·加對重振雄焉,日出是无垢,阿人三

一成三拨,爆出中冷門收場。 一寶,尾塔隆加利箂安權威,力放到底獲勝,完 加利維亞地遠輝而獲勝,至此安格魯亦中开 安德魯在第八格策西洋之死,由頭領到昆力

追上,上方極蚚有力獲勝,則婚女後上與第三 「冷,祗有六四馬參戰,小人物大网倍,攻 心透貝三倍,起步後新自力公放入直路心寶貝

元六角,連線都有一百卅六六角之多。.. | 匹易飽落工,致冷的威朗,力鬥之下參入明軍, 駒,同入西區,與第三的菠茲與富與第四的籍 大門爲猴四、二、三熱門出戰果仍算正 【中科實,四重彩與塲外孖這皆出冷門。第七張是天文台 C觭黃狸 )

成爲大冷因,出馬少而派彩多于分很翠绿派{] a 快樂也是冷門,跑到第六場,告東尼與摩加利者

. 第六融四風彩,大熱門盤盛題,考公門業 一號,偈落孫山,第三門,好心火拼粉步

好萊 名 獨派勝收一元六角

,冠軍辦亞軍三馬位,正軍勝季軍短馬頭

首名雄霸利 SCEXOCET) GY (BE).

萊鹽

您

陳謀保要開失服利九在於位路跑肉粉 出名勝遊由二由懒廷小九展嵴智華跟少令乘之之奇將貓東

日培銀號皂意死之失開五一

若日齡、智力多利盔開米缩下一

菑立國之猛翻出问

・九七五米愛時外

識及全程跑來吮成熟。

在城欠 路摩多

六元八角

位钫李搭国良家戰國派肜·二百七十,於最後一百五十米內時 ,位置):八首)十一元四角(大名

利安滯立襠內倒壯

試閘滿意始准出賽

·莫理斯徐雨石藍志祥俱受警告

第一場,姚魔,一二三五米,出馬十匹,時一,但有三位周習騎師,人愛之後部。見習將師, 汪:十八秒一,五十二秒五,一分十六秒一,末」策縫不善而分别受到新,友唐斯賽後被它對此中,納之藤雄由於黨的是最 沙田區最大游九比,快活谷馬房變白卷。「我後搶熱時都被前作賽,生前洗時會我度對黃河米製,織 一賽小組需售,三人分別志爾梅羅瑟影片及受族|爾飾何鑑乘之水同樣而

下

愛師獲利四路

美均醫何准安足 外安習師敬再須在 閃步蘭森次程

親師伸之

香香林

外

徐之道 均益 徐健志

受智雨除

段于三秒大。.

: 冠軍鍪至一又四份一位,亞軍季短篇策遊龍之莫理斯, 賽小組運轉櫛告。

“後閃師

·第四名:人人致〔洪偉平)

「夫之殷志祥。

(NK) (EN) (EE)

二告並何確保 【米粥白東馬識到近灉

「銀之徐雨石,及大空 一門科學日與蔡立財之後。 屋桡之一大熱狗外附橫越史檄夫之俠 轉直路灣時,游 告東尼之太陽皇子 第 | 搭四) 外樂與希林仕能之油旋 喉後一百五十米內時內,大娘上行落。蘇毙 四百二十八五二街 i太張桌子落,森林世界

-米太婆氷

內陽。同閃燈

塲外彩池派彩表

頁四第張四第

日一十月正年酉辛歷夏

叙述元

獸醫報告沛您及紅開,保榮表現

朴能

CARIE

位置:九元六角?廿元,千二元五角。

強威位:西游黜搭国威得藏彩:四百五十五墅,送記及殘足均全程二三五米

運來欠缺。

·第二埏,新一三三五米,出萬四,

- 昨日賽事董事小組:

· 亞軍馬位,無銀劉季軍四馬位。

第四:無水劉勝何淼

珍藏由首席受薪對事

(90) (EN) (BE)

幹名

之費後檢討,該錄

圆大·把·

K

第三日大搭入場

「濶烹沓可獲准再大出 新馬賽事中,行好|行好深全程跑來次城熟,下周行 (1)1

· ·兇郜毙師文就之一並將見習騎商號志祥握 王牌第三,此為損式,笑氣均擦傷右後蹄。不受約束,以後是盤立5媟叫孫,新日力 二元四角

「關閘時保榮花見習

·見習船師洪偉平之後向兩旁叉開,當

騎師陳日有之新摄殒之“好心瘘 地道 北大旡衛

豹均失位。......

有代優質養小組所设 四重彩冷門天下

步恶悅,我九七五米陽一六五 來之生猛猛 第四 第四

複式每派二萬四

十九元九章

六百九十四元七角,

5 5.

一定

獨:九元五角。

位置:六元,六元八角,廿五元八角。

三五米

一四紀二十七界山

黃派

元權新中一挺腹

表

诚嬴位:太陽桌于搭@大把彩·四十一步緩慢。

元八角。

習。七

出十三秒一,三十七秒]·五十九秒七,未殿·

九步勤

牛絲百果?

彩彩+夜神·適不第

金三式快闖入天

二萬6樂位澜城

四波

袁跑,門

佈出跑露

E3效粉業

九派

|騎師莫理斯之游常在在彩金二萬四千九百四十七元。6

納役柱·五百八十六萬四千元

(TARREE)

1981

中學會考試題預習專欄

化學

(十九)

明德出版社朱宏林提供資料

Chemistry (19)

Reginald V. Chu

MILL & DALE PRESS LTD”

Question 28

(a) A large

Volume 'of Cing.

corrected to .z.p./cm2.

carbonaraystal of calcium

was added c

to

100cm) of 2m hydrochloric. acid in a flask and the mixture was shaken gently until the crystal was completely dissolved.

A crystal of a pure. metallic carbonate, MC03 weighing 4.2g was then added into the flask. The flask was kept at constant temperature and the c

carbon

dioxide evolved was

collected in a graduated:

vessel. The volume of

carbon dioxide was

recorded at 20-minute

intervals aud corrected to

s.t.p. The following graph showing. the results of the experiment was given.

1200)

10001

800

-000

-400

200

20

100-

Time from start of reaction/mins

(i) Write an equation fo

the: reaction between

(the metallic carbonate

and the hydrochloric

(11) What is the purpose of

initially adding a

large crystal of

calcium carbonate to

the hydrochloric acid?

(iii) When is the reaction a

its greatest speed?

(iv) Why is there no

increase in volume of

gas after 100 minutes?

(v) What is the maximum

volume of carbon

dioxide obtained?

(vi) Calculate the relative

atomic mass of the

metal M.

- 12, 0 = 16, er - 35.5)

(vii) How many minutes would have elapsed when half of the metallic:

had reacted

(b) Suguest.a simple method

by which you would be able to obtain a sample of the first-named substance from each of the following mixture

(1) copper and zinc, (ii) oxygen-and

dinitrogen tetroxide; (iii) nitrogen and

carbon dioxide; (iv) sodium bromide and

ammonium bromide,

(v) sodium carbonate and

calcium carbonate;

(vi)

concentrated: nitric acid and

concentrated" sulphuric acid; (vii) ethene and ethane; (viii) hydrogen gas and carbon monoxide, (ix) sulphur and iron;

(x) magnesium oxide and

zine(11)oxide.

Question 29

(a) The experiment as shown

below was to determine the composition of water by mass Hydrogen gas was passed slowly through the apparatus,

anhydrous

caierum.

achloride:

不隨禮柯多新彩,無報請遠 另報拜式采穎色任販就道 收附出印多雜華歡訂閱 费送版刷姿誌僑迎閱向户

drying:

bulb

[f-tubes coutaining:

anhydrous

copper(IT)sulphate:

hydrogen

dry copper(11) oxide:

boat containing.

heat

anhydrous:

calcium

chloride

The following results were obtained:-

Mass of copper(II)sulphate tubes at the start of experiment = 32.362 @

Mass of copper(II)sulphate tube at the end of: experiment = 37.375g

Mass of copper(II)oxide boat at the beginning = 12:147段

Mass of copper(11)øxide: boat at the end - 16.590g

(i) what changes would you

observe of

(1) copper(II)oxide

(2):anhydrous

copper(11)sulphate? (ii) Give equations for the

changes observed in (i). (iii) Mhat is the purpose of

attacking a drying bulb with anhydrous calcium chloride to the U-tube? (iv) What is the mass of

water formed?

(v) What is the mass of

oxygen contained in the water obtained at the end of experiment? (vi) Calculate.the

percentage of oxygen water by masa. (vii) Hence, what is the

ratio by mass of hydrogen to oxygen?

(viii) Why must-

copper(II) oxide be dry?

(b)(i) Etirane is considered to

be a "saturated"" hydrocarbón,

What is meant by the

term "saturated"?

(ii) Name the compound that would be obtained when

in one molecule of ethane,

(1) one H-atom is

replaced by an Ull groupi. (2) one Il-atom is replaced by a COO group; (5) two H-atou are.

removed, one from each carbon atom. (iii) If two H-aton in the

molecule of ethane are replaced by chlorine atoms, it is possible to obtain two different compounds as products. (1) Give the formulae and names of the: two possible products.

(2) What are these two possible compounda

known as?

Question 3000

(a) A series of reactions is

:summarized. in th

following block diagram, Study it carefully and then answer the question which follow.

dark”

dil. pale- SO green

solut'n

grey power 2

evapora tion and crystal- lization

pale-

green crystal- line solid c.

heat strongly

la colourm less, inflame

mable explosive lgas. B.. excesR dil NaOH

dirty-green precipitate

D

evaporate to dryness and heat strongly

reddish-brown| laolid E

dil. HOSOy

yellow-brown solution F

excess

ļdil. Naoff

reddish-brown precipitate G

On heating solid C

strongly, water vapour and white dense funes consisting of a gas X and

a sublimate Y are also

obtained. Gas X has a pungent smell and turns acidified potassium___~ dichromate green while... sublimate Y reacts with barium chloride solution: to give white precipitate insoluble in dilute hydrochloric acid (i) Identify and name substances. A,

E, P, G, X and Y. respectively . (11) Give an equation

the following

(1) A+ diT IF_S0)

reactions:-

SO

E X Y

water. vapour

(3

E

F

4

F

-G

pale-green solu

(6) D

dil NaOH

(iii) Suggest a suitable

reagent for converting E to A and give the appropriate

quation

(b) When dilute sulphuric is electrolysed using platinum electrodes two

are evolved. (i) Name the gases formed

at the cathode and anode: respectively (ii) Write ionic equations

for the reactions at the cathode and the anode respectively. The volume of gases collected are expected to be in a 1:2 ratio, yet the volume of one- gas actually collected during the early part of the electrolysis is always slightly less than half of the other; (1) Why is a 1:2ratio

(2)

(111

報日僑華閱訂期長請

訂閱電話 5-229081內線3號

reason

why it is not obtained in practice.

How does the method)

conduction of

electricity thro

dilute sulphuri

differ from: that

through a"copper wi

全經包專新歷 僑濟羅刋聞史 稱報萬豐翔悠 許導有富貴名。