1964-04-10 — Page 14

JE — MEN 12

HEIKHOU

KERRIEHS

學,於四月四日製合两校學生表演讲英红校學,當年之創辦人 村慕體中米,何雄小慶祝會,十時,由慈绣中成長,此文 【景 慕德中半大馬行 月四日,平期在恩恩

榮

收

劃師 ̇

雙L。上午九時·腾风及來賓飛-1,或創辦時之舌

一,全素而生在數欣.

聯合慶祝校慶·杰中毅過十四周年之

|校

氵 該校創辦時值得學生

兩校爲兄弟學

K - DEKLAKE

百名

十二名 現已 千八

五期盘

台十月四年六九一麼公年三十五國民海中

****

行進學大文中

升中指導英文科今在商選二台播出

時間:下午五時半

部程課外校設

WAH KIU YAT PO 道

日八廿月二年起电信

KE

撒一員之飛翀數字,無小菜一所大學之股有此部門,對於腐 一川千五百六十名,顺出能增多百五十三名。帶大校外漢榨部

歷一近公佈之盤計孢子,太年度校外課程部所有之聖強注册人數,達 一人數,只不過三百餘人,將原漸增長,恐員遞潑,根據財 | 機會學習。香港大舉在一九號六年時成立校外襟部,當時感设 而按外經難都之設立,將使此等有志作過一步研對之市民,獲得 逾三百萬,其中有不少熱素有些近大學形式之致育者, 此分朐風向冷式批出世間,李氏當時之灣醫,按照實際的形 波博士在六年十一月七日變行首次記者招待會時,本報記者团 EKKENSHVŠZZE. 1290KFEN-VED

上課地點之用。如有進一步之醤些,亦可以利用基桢址。 要將在市區內上線,而日前之間及聯合兩極,亦可以作儒將來 喜:由於全榭爾在警備當中,故日前尚未有任何决定,但主

·中文大學戰役,立校外遲部一事,資網中文大學校長李卓

任市鼎外,帶貫尙包括有香滑大學及三間中文大學成員學院之代 全都委員名,可望在不久間內正式公佈,此委員會除出城报 至於中文大學校外爆務部將來上課地點,接近方面人仕迹

當中,中文大學啞合書院校區的黃材担任主席之一個委良會, 香灣中文大學將會在不久之將來,立換外部以市民 一!交大學校當局,對於設立校外界陸都一半,目前已在黑艏

(特殊) 爲何香洲居民能於亞餘之暇作準科研討出站,

瀧下,而機鹽燒。 I REKAREKAREGNA - ETICE - EKE542 KEN - FORENKE • BOHU KHESRE KER<XBEE- IZHESKEYTKUSAAFF

「慕德中學、信義小學

$205+XKKEREMANEN • (#) •

,無形串代表會一般人士對此的教育之需,另一方面,亦開 CHEVEER-SEEKHNARENK • KMLESS | 關心人士陈戏中文大學將來之換外供部所設立之,

|分發至檣學生校服包.

「升中指南」英文科教材

今日在麗的呼聲出

上午十時半 時間:

下午六時正

TEST

PART I

Choose the best word to go in where there is an X. Write the number of the

2. milor

4. baker

2. in

word in the space. Do not write the wash.

a. A man who makes clothes is a X.

t. merchant

3. "barbar

b. The ship will sail X mid-aight.

: 2. *t

3. on

4. with

e. It is a X place to live in.

3. pleasant

4. pleasure

He used X to make bread.

1. flower

1. please

3. Boar

2. pleased

2. flour,

4. fool

*. Toin went to some water for his mother.

1. taku

$: fetch

8) Look at this map.

turn

*****

2. drink

4. send

MAIN

ROAD

d.

GREEN STREET

HIGH STREET

Ther

Using the map, tell somebody how to go from A to the school. Fill in th

blanks. The first two blanks are filled for you,

Go along High Street, Ture into

tato and cross over st

The school is there.

9) Put the words into the right order. Write out each sentence in the space

a. Him, met. I night, last.

You, which da, book, lika?.

The blackboard clean. A

d. To the book. I gave, him.

院書合聯由會員委備籌立成經 大港括包員委 席主任材鄭長校 表代之院學員成學大文中間三

九六四年度

經文中學會考試題預習專欄

華僑日報英中會考試題研究委員會 主編

12 學

(十三)

(continued from the twelfth issue }

Separation of Components in Mixtures

The components of mixtures can be separated by phy- sical or by chemical means. When only one of com- ponents of a mixture is wanted, chemical action can be employed to destroy the other, E.g., sulphur may be obtained from a mixture of iron and sulphur by the action of hydrochloric acid, or carbon monoxide from a mixture of carbon monoxide and carbon dioxide by the action of caustic soda solution. Physical meana of separation are often used as a simple way of ob- taining both components in a pure state or as a mathoc

of proving that the substance in question is a mixture and not a compound, whose constituents can only be

separated by chemical means. The following table will. serve as a guide to the separation of mixtures. by physical means:

Mixture.

contains i

liquid+solid in suspension liquid+aolid in solutiam

11d

gas.

Than. be, taller, is broches bis

Two words on each line belong together. Think what they are and underline

both.

Example: ship/_pink water/ house/ green town.

8. Vegetable/ fish/ pineapple/ meat/ mango/.beer,

b. Hong Kong/ John/ England/ Chinese/ Japan. I

[■. Insect/ inch/ yearƒ ich? yard/ leni

d. milk/ mule/ tabinƒ tea! house/ orange,)

Write the number of the correct word in the space. Use och word once only.

Example: a bowl of

As a pair of

B.

C. a piece of Dan any of

(3) sheep (4) cattia,

(5) chalk

liquid-liquid

class of

(1) puplis

(2) rice

B. crowd of

(6) shoes

4

(0) people

(8) soldiers

2.

A.

8.

C.

D.

One of the following words or phrases can be used in the passage where there Is number. Write the correct word in the space. Do not use phrase more than once.

any word

ог

live, on, pass, servant, teaching, e, so that, brother, try, mother, at the same time, sisters, carly, name, father, glad, working, studying.

I am

My (1) is Peter Chan. I have a (2) and two (3). They are all younger than I. My (4) is a headmaster and my (5) is a nurse. (6) in Primary 6 and I am going to (7) the Secondary School Entrange Bradiation. My teacher said that I am a clever boy but still I am (8) very bard (9) 1 can pass the Examination. I know that my parents and my teachers will be very (10) if I am able to do so. (1).

·(2)............... (3)......... -(5)............ (6)

(9). ....... (10)......

(?).............

(4)..

·(8).

Make the following into questions. Write the question in the space.

⚫. You are a student.

b. He cul down a tree.

c. She had seen the picture.,

d. Joho catches the thief.

He is going out,

3.

Fill in the 'anks with the corress tense of the verba

GO

Ha always

b. FAL

He

*****

LISTEN

We

d. TALK

-He

*. VISIT

They

to bed early.

#sleep already.

10 the teacher no-

when the teacher called his name."

then ungle next Sunday.

Method of: separation:

filtration

crystallisa- tion, when orys- cala of solute are desired. evaporation to dryness. distillation, when it is de aired to rec er the sol

adding so. which dissolves one component but not the other, then filter ing and evapora sublimation.

melting. sedimentation

magnetism fractional crystallisation

fractional distillation liquefaction of one component

liquefaction of mixture + frao- tional distill- ation.

Example:

water+sand

water + Glauber'

salt

water

common salt

alcohol potass dum acetate

2nd+sugar(=ol= vent water) iron+sulphur(sol-: vent carbon disul

phide)

sodium chloride ammonium chloride

or iodine+sand sulphur+gypsum powder sulphur → lead shot or gold dust + gand iron + sulphur potassium chlorate potassium chlpr-

ide

water • alcohol

nitrogen peroxide +.oxygen in the preparation of NO2 from lead nitrate manufacture of ox- ygen and nitrogen from air

Further examples of methods of separating typical mixtures.

於扭

*年間,杓多六十倍 慍校之六原生娘第一學祟健裝筑,類線劃一戰,近段加强會 曾在實激愛騰其母校做整饬辦公處,電話

KYTTEENEY ISBE (8)

及

STIK - H 尼單只有小学 • 學」,中學日於前年茳册|四年來辛餐門精神 NER-HERO CAPESHK# EXC -ZZENT 坳•「磁譲」裼校獎 五行省。早期没有校校長致篇後,職由 級閆宫校十四年來會,没有桌橋,學生兩校之監督錫安教 | 碰馊况,使赠亲惑」的省祗包括中网二十一條的後續深造者。攝

華僑工商學院校友會

BASKIE **SREDECE

九尾荷的樣 (1)

KEKGS - KFU}}

一千八百餘人,十四,大多赴台升學,當 60FERERER*** -ERR ***<*•*I

(26)

經理監事會選出籐

..,游西巓往槓爲精

ESKENK BREZICA CREEPINGE [BCHEN SKEE - (HD) E

游,仍越各方聯繫,之衰神,作有會員子-大四C CR

之智

CEREKEN

Answer?-

One of these words or pirates can be used in the patzaga mara zoara de

zumber. Write the correct summer in sech blatis. Vos quce only:

Jack, full, datead of, household, often, help, on, diffimuity, scarand eat, thrown, symolally, lying, everywhere, due, refuse

One can't (1) thinking that one is living in atter be (2) in a city.. (3), you can see rabbit of every kind (A) in the stresta. Etery (5) can have a dust bin without Buch (6) but it is (7) to ass wɔtým. (8) out of their Seladowa

(1) help

(2) in.234.of

(3) avemmers

(4) Jing

(3) hourshold

(S) METACULAR

(7) stran.

Choose var vi tim kollowing verbs to go in sach blank.spaos, Pat it i the correct tenso. Und'each word once anlgi-

te, not, punish, like, break, laura, enter, tell, go, do, thank see, kadia I have been at this school, since 1960, 1-11k it very much, an a Ang Engliun, Chinese, and Arithmetic at prosent, and next your I shall pos da ndondary school. Yesterday, I broke one of the winsown I was very honest and I want to the toucher.. I told him what I had gona. My teacher did not mente as as I Shnaked hader with mil gợư hakiêm

Anituation

The word underuzima beans panoTIATINE.

King in the purotation. (1963) (20)

Ita tem

(b) lacker sold them to Izaten ·

write the word in the space,

Some punotuatian da missed och at I. At the correct punctuation miam alearly in the brackets on the rights- (1962) (21)

#Oh I be add

How many pupils sgw wovew sa juur SIM A

{0} "Zuz," she held 2 #34; da lažni® |-

Kralme

}}

If the word underlined needs punctuating then write the word to the spust,

putting in the puntuation

.Kr. She moves to sas DN.

b. The bort father is sick.

6. The horse has broken its log.

d. The girly mother gives tàm Loodi wrazyđago,

Whate that?

Its nice to MA JOB.

La lent it yoUPS?,

b. 11 go home with you

1. Za payd

Boun punatuation in missed out at X. Put the correct prinstvattaa 'am

slearly in the tukakuta on the righti- -

What is your man 2

b. "Come here 2* add his mother

What a terrible size, thin sa k

The teacher asked the. Doye,' tåre you fightăng 24,

**X* shouted the boy

2. They did not some here yesterday X

Bo X Jakım shosted, "I OLANTE DE SAIN

*7% La night stalock 2o the indu

Ba tried Z PRip] Sly1*

Mis on slaphanh Aiken = 26. 39 asked, the MÃING ME

15mfemmeption)

If the word usdaržined meada punottuláng kim andão tão oud in the - apaan pakking in the pubabestiago

2. 1 plent on you. “

3. the Josh lo«b Ita Kiškann,”

As The Jorg Cather is very king

́ 5. The haze mother. En Retail S4 bis

.....Bose pucobertson da sipend en et 2. Pa da soprach:

alataky do the kreskóka 'nut Shi aighten

2,2 has a good activer gos saražo maži, Mazy,

2, there were three plass Of

I's tabla and a hole

{03 / MKE - KU

REK-FS**|

• BRACES HER BEK

jing, while common salt will remain in

KIMESHARK

14+NERIKK·

李安、沖水、

一審、郭訓專、半方媒 計有主導才生食品 立體體委員,人通

BEKKSZER

#REDENALI

、西翠山、潘志光、

solution

because it is almost as soluble in cold water as. in hot

for many other mixtures con-

taini Question:

How wo

a mixt

yo salt and

From this sa MgSO 7H20) "how would you prepa (a) magnesium hydroxide, (b) magnesium oxide? How would you show that Epsom salt (o) conains. water of crystallisation. (d) is a guinhate? Answer

Ag

one component of the mixture is soluble in water while the other is not, water can be used for the separation, The mixture is stirred with hot dis- tilled water and filtered, The insoluble sand re- mains on the filter paper and is rejected, as it. is not required. The filtrate, a solution of Epson salt, is evaporated until some drops taken out a glass rod crystallise on cooling. The hot aque- Ous solution 1s now

set aside to cool, and the magnesium sulphate separates in the form of colour less rhombic crystals of the heptahydrate. The Bother liquor is poured off, and the crystals are dried between filter paper.

which

(a) If sodium hydroxide solution is added to a solution of Epsom salt, magnesium hydroxide is aparingly soluble in water, is formed as white precipitate.

HASOL

2NaOH = Mg(OH)2

It is filtered off, washed and dried at a temper-] ature of 100°c. because it decomposes at higher temperatures.

(b) If magnesium hydroxide is heated until it

decomposes, water is given off in the form of

steam, and magnesium oxide remains which is aj

powder.“

who to

com-

?

1. Salt and sand. Add water, filter and evaporate.

Similarly for other mixtures of which one ponent is soluble in water and the other insol– į uble.

2. Gunpowder. · {

= nitre charcoal+sulphur ). Extract the nitre as in (1), leaving charcoal and sulphur.

the sulphur, using carbon disulphide

Then extract

48 the solvent. Similarly we may separate yellow phosphorus (sol- uble in CS2) from red phosphorus (insoluble).

3. Ammonium chloride, and sodium chloride. Heat.

Ammonium salt volatilises, and may be condensed on cool surface, leaving NaCl. Similarly for other mixtures containing an ammonium salt. (Iodine and sulphur are also easily volatilised.} Alcohol and Water. (alcohol b.p. 78°C.. water b.p. 100 c.)

The mixture is placed in a distill- ing flask which is joined to a Liebig's condenser. Heat and collett the portion of the distillate which comes over at 78°C. and separately the other portion at 100.

4.

5.

Similarly for other mixtures containing liquids of very different boiling points, .., sulphuric acid and water; liquid oxygen and liquid nitrogen; sulphuric and nitric acida: separation of coal

in gas-works..

tar

Mixtures containing iron, use magnet.

6. Hydrogen and Ammonia (gas). Shake up with water.

Ammonia dissolves (may be recovered if necăuary by boiling the solution),

Similarly for any very soluble gas mixed with

a comparatively insoluble one (NO, and NO, SO, and CO2, etc.).

7. Common salt and Nitre.

tion. The nitre,

Make a

strang hot solu- water than in hot, will crystallise out

being much less soluble in cold

on cool-

Mg(OH)2

贴 M60

+

H20

(c) Some Epsom salt is gently heated in a test..

tube carrying a thermomether and a delivery tube.]

tube containing The tube dips into an open test some anhydrous copper sulphate. On heating, the Epsom salt loses its crystalline shape, E col- ourless liquid condenses on the cold walls of the second test tube, the white anhydrous copper} sulphate turns blue and the thermometer risea to 100°C. The colour change of the copper sul- phate indicates the presence of water in the vapours given off, by the Epsom salt, and the vapour temperature of 100ʻ shows that the sub- stance given off is pure water. A9 the Epsom salt and the test tubes were dry at the begin- ning of the experiment, the water must have been contained in the crystals chemically combined. 1.0. in the form of water of crystallisation.

Me507H20 CuSO4 (white)

1

SH20

•

Meson

7H20 CuSO. SH2O (blue)

•

(d) Some Epsom salt is dissolved in distillea water, and a solution of barium chloride is added. A white precipitate forms and remains after addition of some drops of concentrated hydrochloric acid even on heating. The In- solubility in hydrochloric acid shows the pre** cipitate to be barium sulphate, Epsom salt therefore is a sulphate,

MgSO..

*

8a12

** Jaso