1968-11-30 — Page 15

第三張四第

日一十月十年申戊靈

WAH KIU YYT PO

日十三月一十年八六九一层公年七十五國民新

一九六九年中文中学考試題預

化學科

·林銍衡:

複習題四

複習項目

原子量 原子價

中原子 分子

子 當量

工填-

題

(1)R元素參與化學變化之最小微粒稱 只能單獨存在的最小微粒稱為

(2)一元素之原子的質量為氣原子量

之两倍其原子量應為

(3) Ca(HCO3)之分子量為

(原子量: Ca=40Hz/ C=/2, 0x/6; 4) 一元素九克能與1008克氨結合或置

換1008克星 2稍該元素之

一元素每一原子能與2個氫原子結 合則Q稱該元素之一

6)由=氧化硫之化學式 SO, 可知硫的 原子 佃能與氧的原子 __ 個結 合其重 比為8: 硫的原子價

(7)在AB中之原子價是+3,则8元 原子價是 B之镕舊的化學式應

(8)在从SO,一式中硗之原子儒是

- 式中路之原子儒是。

「克原子量 oz 克康

(0) 5克鈣合 子量的鈣

(H)5克钙合 的钙重

克雷量,

(1/2) 10 J°C NUO

克分子量 4克

分子量,NaOH

克(原子重No23)

苯

子式是

(A)

(3)乙炔分子式是G竹實驗式為

實驗式為一 敦原子說謂物質是由稱為 的微粒所構成同種元素的這些微粒 的大

都相同,異類元素

的則不同它們不能被.

194克磷可製得8.58克磷的氯化物;

克磷可製得仙 克磷另一 氯化物 合物中磷的當量並以此证明

「比定律、 一金屬M 之比熱是0-23它的氯化物的 分子量是133-5, 求川之準確原子量並 鷹出它的氯化物的化學式(氢原子量 是35.5)

複習題三解答

I UJC (2)6

丑()氫和氧

(2) 100°C. 0°C

(4)0

克/毫升

(3)無水硫酸铜(無色) 藍色

總質量 總質量

5H5O+ CuSOG

COSO SMO

(4)氯化鈣 Cacle

(5) & NH,

氯化氢 HCP

(6)總質量

質量不滅

DJ M+ 2HO

ZKOH + HT(常温)

紅熱鎂

水蒸氣)

水蒸氣

五

CC:文中學會考試題預習

地理科 (四)

劉玉領

GEOGRAPHY (4)

6. Describe the differences between sast and Nesti Pakistan in laj position (6) relief (a) climate (d) jano use.

Ans.

Fakia tan comprises a west and an East Pakistan separated by some 920 miles of Indian territory, The two Pakistana contrast greatly with each other. (a) Position: East Pakistan lies to the north-east

of India and West Pakistan, to its north-west. The former: is bisected nearly into two halves by the 90° mar id ian and the latter, by the 70°E line, East Pakistan is bounded by Burma in the east, India in the west, Nepal and Bhutan in the north, and by the Bay of Bengal In the south. West Pakistan is bordered by: India, Afghanistan, and the Arabian Sea on its sast, west, north and south respectively.

Relief: East Pakistan contains the greater part

of the combined deltas of the Ganges a and the

Brahme putra, the broad flat Su Thet Valley, and forestes Chittagong Hills in its south-east

The region is practically fle, built or fine silt, criss-crossed by a great number of distributaries and artificial channels, Ch

-ene:

ather hand, West Pakistan has a more complex

physical configuration. Nearly half of it 13 over 1000 feet above sex. level. The Highlan

occupies the western and the north-western parta

and inelude the dry plateau of Baluchisting and the hilly North-western Frontier Province, In

its saat in a large alluvial plain trained by the Indus River and its five large tribut-les The river forms a large delta Et ita mouth and

his resembles the deltats land of desti Pakistan,

(a) Climate: Loosely spesking, both regions have "a

tropical monsoon climte with not, moist summe je and warm, dry winter. Rairifall somes mostly in summer, However, Best Pakistan is much vestar, with over 60 p.a., because it receives direct on-shone 5,W. monsoon winds in summer. “MEST Pakistan, located further inland in the path "the diverted 3.W. monsoons, receive for lesá. rala, ipproximating 20a in a year. Moreover, -Nest Pakistan, as it is remote from the

moderating influence of the sea, has a more extreme continental climate. In Ita porth-west,

* Low pressure centre and a high pressure centr develop in July and in January respectively,

Though the average summer temperature in owth: areas is 85°F, the winter temperature in West Pakistan falls mome: 20°F, balow that in East

Pakistan. Climate can thus be described as more equable in East Pakistan.

"Land sue: Consequent to great variations in olim te, methods of land utilisation differ- widely, In West Pakistan, the Indus Plain 15 se dry that it is practically impossible to grow anything without irrigation. Over 60% of the cultivated Land depend on irrigation. In west Punjab and Sind lies. the greatest irrigation: region in the world. "Wells, inundation ornale and perennial canals are employed. In dast Pakistan, drainage rather than irrigation is necessary sa heavy rainfall often leads to waterlogging and flooding.

Agriculture is the main octupa 21on in both regions, Wheat, millet, and maize are the major food crops in West. Pakistan, Wheat covera nearly one-third of the cultivated land. Cotton is the most important cash erop. Double cropping of: winter wheat and sumer cotton is comon..

In East Pakistan, only tropical crops are groma;

rice, jute, tea and sugar-cane. Rice covers three-quarters of the arable land in use. ang. two to three crops are harvested in a year.

comes from East Fakistan. Here, the dry-zone

crops - wheat, barley, maize, millet → have

Per three quarters of world's output of jute

entirely disappeared, Farming is more intensive in East Pakistan than in West Pakistan.

Industrial development 18 backward in both

regions even though West Pakistan is better

andawad with mineral rermuross (cil, salt, gas)

and H.E.F. potentials waerens East Pakistan in

poor, in mineral wealth. Fianing is, an

importart occupation in fast Pakistan put not

of great significance in West Pekistan, excent at Karachi.

summer wines

WINTER Wings".

iprinsted land

ATTERY

Questions for next weer

PAKISTAN

Sunder

WEST

EAST PAKISTIT

Land over 12009

Relef & Position.

Jepute due: sdør 5

7. Compere and contrast the geographica i cónditions of

Ceylon and Luzon, 3. Write a geographical account on the Dry Lone of

與一定重量之甲元素結合所需乙元

素之各重量間必成簡單整数比,

解

[氮的氧化物

含氮名

461 30

(3) 3 Fe + 4 42 0 → Fe, 0, +4H;↑ ( &=**

(49) Q+ +0 4 (不起作用)

氣的方法

{{)用活潑金屬(如鋅)厪換稀酸(如硝酸)

中的氢

2n+ H2SO4 → ZnSO4 + H2↑

(2)最活潑全屬(如钠)與水作用

2H3O → 2NaOH + N

(3)電解水(加入少量硫酸)在陰極可得

2420 72 HET * OT-

(4)水蒸氣通過赤熱的焦碳生成一氧化 碳與氯之混合氧体(水煤氣),再將混 合氣体冷却使-氯化碳液化分離,

10

COM

女足比定律:凡同一種純淨的化合物都 由同樣的幾種元素依一定重量比率結 合而成

解

•氧化銅

重量 2-653克 含銅重 2.12克 含銅%

4.36

含氧2

53.989.6 36.9

53.9

合需氧要

41

30.4

2./2

3.98克 7959元 3.18兔.36页 3.18

9.95)

=29.89

=2828

含氟% -2.9%

-2997

=20.1%

2018

2012

三種氧化銅中皆金铜 79.9%氧20/% 符合定比定律.

各氧重之比

氮輿氣两元素結合成=種氧的氧化 物,在各化合物中與一定重量的要結 合所需之氧重為 21411 是簡單整数 比符合倍比定律,

ZA & NO

1 B 是NO (氧固定 承重24卸1:2)

是 MO (哭4比較需要回乌康亚

是211, A 是NO CL NOL 倍為要教得 203

正倍比定律, 甲、乙两種元素若能結合成 两種(多種)不同的化合物剔在各化合物

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