日五廿月十年〇八九一歷公年九十六國民華中 育教儒
lative frequency will be:
12 How much water will
overflow if 10 marbles
are put into a tank
full of water 1000 cm2.
marbles
GOTT
1000-270T
&
E. cannot be determined 13.Find the mean height
Height mas
-No. of students4
17.From the table
find
Weight(W)Frea...(F)} WZF
1 KE
頁四第張六第日七十月九年申庚歷夏
WAH KIU YAT PO
報日僑
六期星
:64
8.The solids are similar.
A
640.
R
初中成績評核預習
52
21.3
Find volume of A if B 生日:88cm-
E.
785
C.
926"
1250
17.3
Toan
雄風出版社
EL
1800.
8.6
4.The ratio of the 2 halves
of a right pyramid is
數量
96
A 1:1
105.
Mat hematics 7-
B. 1:2
C. D. 107
1:4
1.09 7:14
1. The base of a pyramid
E.
EL 1:8
'cannot be determined
60π
with vertical height: 9
B.
270π
em is shown as below.. The volume of the pyramid.
5.The volume ratios are
9. The volume of the solid.
1000
D.
AC 40x
60-2 GM
ABCDE
22
24/3:1
:12
4
15 #6
B.
꼭 ᅲ
20
AJ
1.8
BL
1:7
1.65
D.
1.6 1.5
2.The upper and lower. sect-
ions:of a fruetrum are squares.. The vertical distance between them is
The volume is
of the above
given solids are similar. Find x
.100 cm2
10. The water in the tunnel
is filled up toe width: of 5 m. Find the area
Th Find the median of.
3
6, 2, 9,
B.
D.
E.. 72
CON
12 24
36:
114
B. 48
38 23
EX 21.3.
3 The vertical. distance
between the surfaces is
2 cm. The volume is
6
7.1
10.
De E.
19:6
cannot be determined
7.Find the total surface
erea of A, if A B are Bimilar and B is 920 cm
B
12
A
of tunnel in contact with water.
.D.
2.5
15.From the histograi
can find
·500T 76
200π/6
D.
001/6 250./6
50 π 76
11. The volume:
the solid
Mean Median
Mode
D
All the above
E.
None of the above
4 ke
3 6
24
7 kg
14
·Méan
B.
Median
C.
Mode
D
All the above
E.
Rone of the above
Answers
9. A 10.C
11. E
12.B
13. D.
14. D
18 cm2
1981
中學會考試題預習專欄
化學
明德出版社朱宏林提供資料 CHEMISTRY (3)
Reginald W.Chu
MILL &DALE PRESS LTD.
Question 4.
In the experiment as shown
| below a gas A, obtained by the
action of concentrated
hydrochloric acid on potassium permanganate crystals, was passed over some heated iron filings and a black solid B was: collected,
drying bulb
sada
HCL
jas A
filings
KML04 - water: crystals
conc H2SO
receiver.
(a) Identify and name the
substances A and B,
Solid B
(b) Give an equation for
(1) the formation of gas A;
(ii) the formation of solid B,
11817 1087:
999 846
1000
respectively.
(c) State the purpose of passing
the gas A successively: through
(j) water,
(ii) conc H 2SO
(d) (i) What is the soda lime?
(ii) State two functions of
connecting a drying bulb containing soda lime to the receiver?
(e) It was found that 3.25g of
solid B were obtained at the end in the above experiment. (i) What was the mass of
iron that had reacted?
"(ii) What was the volume of
·ges A measured at s. t. p. that had reacted with iron?
(Relative atomic masses: Fe-56, C1-35, 5)
(f) Would there be any reaction
if the iron filings in the above experiment were substituted, in turn, by (i) copper powder: (ii) carbon powder?
If there was a reaction, give an equation for the reaction. If the re was no reaction, state it:
(g) Name the substance(s) that would be obtained and write an equation for the reaction,
if any, when gas A is passed
respectively into:
(i) cold dilute potassium
hydroxide solution;
(ii) hot concentrated sodium
hydroxide solution.
Question 5
In the experiment as shown below the gas X evolved from tube Ais passed into a liquid Y in.the test-tube B.
test-tube A
gas X
test-tube B
cone H2S04
quid Y
copper turnings
(a) Give the chemical:name of
the gas X.
(b) Write an equation for the
formation of gas X.
(c) A solution Wis obtained
when liquid Yis the distilled water.
(i) Would the pH of the
Esolution W be greater or
smaller than 7? (ii) What ions would be
present in the solution W?:
(d) Describe what would you
observe when the following liquids are placed, in turn. in:the test-tube B:-
(i) liquid Y is acidified
potassium dichromate.
(i) Write the equations for
16.The greph of the cummus
·(ii).
liquid Yis bromine water;
(iii) liquid Y is neutral
barium chloride solution;
(iv) liquid Y is saturated
hydrogen sulphide
solution.
Give the equation for the reactions in (ii), (iii) and (iv).
(e) What would happen if gas X
is passed over heated. lead(IV) oxide?
Give an equation for the Creaction, if any.
(f) Is it necessary to heat the
mixture of copper turnings and concentrated sulphuric acid in the above
experiment?
(g) A white solid is obtained as
the residue in the test-tube A at the end of the experiment.
(i) What is the white solid? ii) What would you observe:
on pouring the residue. into a beaker half-full of water with stirring?
(h) Would there be any gas X
produced if copper is -- substituted, in turn, by
(i) lead; (ii) zinc?
If there is no reaction, state so and explain briefly.
If there is a reaction write
15. D
16. D
17. D
an equation for the reaction. Question 6
(a) Metal X belongs to the ground
2 of the Periodic Table. 0.24g of X are completely dissolved in 50cm of 0.5M hydrochloric acid to give its chloride. The resulting solution is then diluted to 250cm and Sucm of the diluted solution require/ 25cm 3.
of 0.02M sodium carbonate solution for complete neutralization,
the reactions involved. (ii) Calculate the relative
atomic mass of the: metal X.
(b) What would you observe in
each of the following cases? Give equation(s) for any reactions that might have taken place.
(i) Chlorine gas is passed
in an aqueous solution of potassium iodide for- some time. A few drops of starch solution is then added.
(ii) Silver nitrate solution
acidified with dilute nitric acid, is added into an aqueous solution of sodium chloride. An
excess of ammonia solution is then added
into the resulting
mixture.
啰音節-嶗閿讀,自由新話·英 ,单好漢語拚音有三級標準:唯 J,作爲給漢字注音的符號。
替了一九一八年公布的「花音字母
*演音入小李藝文課本,
,稱爲「科技嘅用」,如 ::語文教學以外漢語音應用的
故優學了一個月就「丟拐街」的老 一、漢語拼音字母作「代號」以為是,盡力培狻漢語拼音,使它費金
但不平衡。文字改革工作者的任務一證湛。《螈)
竹 月廿七日普通話初、
會」一九七七年染用漢語拼音作 掛寓中國地名的國姫繋率; ... ·
三、聯合國「地名國皆標準化,中級诋嘉明划一,四下午七時 分至九時上稷,電話五!110|
尚有教育
八五
·來件寄軒尼詩道郵箱
*
亞,弱智及四肢殘疾之一帆等,參賽共 近11百名,分别爲,船技巧,船鸟換器及
·目前報名參加校已拍 高錦標賽事分別塔 以机純其自祫及自信心 標,獨木舟錦標及格力 參展童年的露营活動,童軍划船機,蒸氣 成員能在藏常安排下,一項目計有微童軍錦標,
·是使身股有钴陷之窟|上活勤中心舉行,比賽 地洞梓營地舉行。目的 日(星期日)在大海 廿五至廿*日在該會大骀大會亦定於十月十大 童軍渡假餐,定於十月 毎年一度之前軍賽 之一九八〇年全港特 習等。 由香港意鹬合舉辦,發技大賽及童軍技能 童軍賽船亦同時舉行 八十餘獄。歡迎各界人
溵假音之節目計有 出庭時到參觀。 成
特能童軍渡假 下月廿五舉行
。楚漢語拼音向漢語拼音文字前進,
·珠大溪語拼管的「科技應用一
·四,在電腦上利用語拼音源
篇車生
例
外
:是一位教書的朋友親
將與談話。張
上一般學生跌了手
·某日- 陳光生
往。 ,但樣好的一條公路-爲甚麼偏多交通意外。
給治、陳先生是班主任,就由他跟救傷車的 車行屯門公路,既平豆道,陳先生跨甘
逖市夏某公立醫院 臂,學校在新界,
不覺就抵達了目的地。 -先生到純甄鍵,人有問有答,越設 和司機閒談,從生活甘苦談到社會百態, 陳先生經驗熙富,臨危不亂,找些話題 一。而前後左右的車輛牒都得風馳花梨。一 腌,他的半半開,只是靠下意識在駕駛 ,原來司變先生的頭也一點一點的在那裏打 之下,陳先生睡意全消,而且驚出一身冷汗
·均莒睡去·再對證可號,不精的肉,一 坐呻吟 - 腳脚向後君去,卻見兩名恕那人撬
·说,就在司旁读打起來,中赠得
·致傷車平铟地向前滑行,陳先生無意識
這個故事告訴我們,世界上任何事都有
一
例外,包括「清勿與司機談話」在內。
之人士可留意「中國 程爲教育司成人 敦 對中國財學有興運一準常識福介」課程,熱 中國醫學常識簡介
官立中文夜學院辦
五十七號五〇二本會 二〇三二七號或骆克道
我課程旨在會中
中包括人體生理、病理 、 即斷及按定等之基本
鞀□亳鹘一般常識,其
一第消
頁
息
刊
在
NEW METHODE. EVENING SCHOOL
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A.招收明年26.9, 月份、第11, 12, 13班大學預科新生
歡迎香港及澳門F.3F.6學生申請報名,協助辦理簽証
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张如下
這一期繼續介紹
·葉三、關於漢語拼音,周的說
·鍋的撥盤,漢字和幸速篩等部分, 「國文字改革的現狀和問題」淇焦器 上兩期低箱介紹了周有光「中
一九五八年「全國人民代表大 會」希為並公布「漢語:音方案》,
.的一個重要方面。.
文字。
而非业大
避。爲有條理的科
程共分大洋二
無識。八三)經絡:經 橫大膽與、氣、神的 概念。(二)雖象:五 的關係,及陰陽五行的 〔一導論:人與自然
中國政策,漢語拼音不是拼音 ),中心問題是「分詞寫法」。独臂爆院上來。 象是拼酀法的規窃化〔「正齮法」於九如士居道路薮洪
·漢語拼音文字發胜。研究的主要對十五分至九時十五分, 拼音字母的任何利用;拼音向星推二,下午七時
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