第三題和第四題拜託詳解

高中化學習作 | CHEMISTRY BYCIE. 3.下列敘述哪些正確?(應選3項) Tee D (A)酸性水溶液中只有氫離子存在 (B) NaCl 水溶液不使紅色石蕊試紙變 藍 (C) NaOH 溶解在水中是吸熱反應 (D)在 45 °C 的純水中, pH+pOH<14 (E)酸鹼中和是放熱反應 3) 4. pH 值均為 4.0 的鹽酸及醋酸水溶液各20 mL,下列有關兩溶液的比較敘 如飯 AUT 无法完全解離 述,哪些正確?(應選3項) 想同时相同 (A)兩溶液的體積莫耳濃度:醋酸>鹽酸 (B)兩溶液的[OH⁻]:醋酸>鹽 晚酸 (8)欲以同一NaOH(aq) 中和兩溶液,所需的NaOH(aq)之體積:醋酸 > 鹽酸 (D)兩溶液的 [H+]:鹽酸> 醋酸 (E) 25 °C 時,兩溶液的 pH + pOH 均等於14 (QC)5.下列有關水與水溶液的敘述,哪些正確?(應選2項) (A) 80 ℃ 時,pH + pOH>14 (B) 80 °C 時,pH = 7 為鹼性 (C) 10 ℃ 時, pH = 7 為鹼性 (D/25 °C時,pH + pOH = 14 (E)在 10 ℃ 與 80 ℃ 下的兩 杯 pH 均為 1 之溶液,前者的 [H+]較大 (Res Re 四 某節目白 否屬實。 原來 一時興起, 而馬桶上 冰為了活 3 間許久未 裡,並靜 些,但成 雪山一般 含有碳

請問第16、17要怎麼作答

It's widely known that bees are important for our ecosystem and that they are facing increasing threats from modern agricultural practices involving pesticides. What many of us don't know, 16. (is that some industries should shoulder a bigger share of blame than they're given.) The almond industry, for instance, has quite an adverse impact on bee colonies. One potential harm to bee colonies is the stress caused by transporting them over long distances to almond orchards for the task of pollination. This transportation can be stressful for the bees, hence 17. them more vulnerable to diseases and pests. Moreover, since they're 18. having limited food sources aside from almond flowers further weakens bee colonies. Still another problem is the of honeybees to pesticides and other chemicals used in almond production. 19. 20. and One sustainable solution is to make habitats and species within almond orchards more stable. By creating various ecosystems and introducing other insects among almond trees, at least we can ensure enough food supply for bees and even lower the use of pesticides for almond trees in the long run. A 16. (A) therefore (B) however C17. (A) make A (B) made 18. (A) faced with a great increase in demand (C) looked after by beekeepers carefully (B) delivery 19. (A) cultivation 2 (C) in addition (D) for a start (C) making (D) to make (B) raised in their natural environment (D) physically removed from their habitat (C) exposure (D) restriction asant (D) particular

求解

三填(10題,每題2 分,共 20 分,答錯無倒扣) 21 for these, though. Why are we so different? Some people hate the feeling of being afraid and avoid situations like visiting ghost houses, watching scary movies, and telling ghost stories around the campfire. Others have a Researchers have found the answer lies in how the chemicals in our brain work. When we are afraid, our bodies can make fight-or-flight response, a reaction that helps us to decide whether to fight or escape. In these situations, our brains combination of hormones. Interestingly, the way our bodies respond to these_20determines whether we get to the movie theater to see a horror film or not. 22 a a have Psychologists say that people who 24 themselves in scary situations need to make sure that they are in a safe environment. For example, people who visit ghost houses have the _25 that they are going to be scared. They may 26 fear when Godzilla or Count Dracula starts chasing them. However, they know the _27aren't real, so they can enjoy the high feeling associated with the fight-or-flight response. Some people also feel a sense of confidence after they live through a 28 situation, even if they know it is false. How about you? When a scary 29__ turns up, will you escape or enjoy the fear? No matter which one you choose, there is no doubt that no one wants to face the $30. (A) horrible (C) release in real life. It's natural that everyone will escape from real danger. (D) tragedy (B) place (AC) expectation (AD) monsters (E) passion (BC) creature (AB) sudden (AE) chemicals

求題目的過程與解答，問題四延續問題三，謝謝

Problem 3 Creating a 0.1 Normal Solution Suppose you must determine the amount of hydrogen halides (HCI, HBr and HF) in the flue gas leaving a chemical reactor. The emission sampling train for hydrogen halide determination calls for a total of 200 mL of 0.1 N H₂SO4 as an absorbing solution. The absorbing solution will be located on the impingers of the sampling train. How many grams of H₂SO4 should be added to water to create 200 mL of a 0.1 N H₂SO4 solution? > The chemical reaction of H₂O and H₂SO4 is as follows: H₂SO4+H₂O 2H++SO₁²+H₂O 4 > Approximate atomic weights of elements: H=1, S=32, O=16

求3、4小題解法🙇🏻‍♀️

096 配合單元練習:基礎題單選3、單選4 是中东版水 SO CHEMISTRY 2 100-200 2 某單質子弱酸,其分子式為CaH8O2,在25°C 時,取該酸 2.2 克配製成 100 mL 的水溶液, 測得該溶液 pH 值為3,已知 10=3.16,則: 20 (1)試計算依上述方式配製的 100 mL 水溶液中,單質子弱酸之解離百分率%。 (2)試計算該單質子弱酸於25°C時之解離常數。福寶出2001 号 (3)將該單質子弱酸水溶液加水稀釋至10L,試計算稀釋後水溶液的pH值。 T (4)試計算該單質子弱酸稀釋成 10 L 水溶液時,單質子弱酸之解離百分率%。(ps) (5)比較弱酸水溶液稀釋前後的解離百分率,可歸納出什麼樣的結論,簡述並解釋之。

請問第87和90題🙏

AC pd AS (C) highest melting point of any metal (D) metal's highest melting point of any 87. Biochemists use fireflies to study bioluminescence, (A) the heatless light given off by certain plants and animals (B) certain plants and animals give off the heatless light (C) which certain plants and animals give off the heatless light (D) is the heatless light given off by certain plants and animals 88. Canada has two official languages, (A) they are French and English (B) French and English (C) which they are French and English (D) French and English they are a shock wave caused by a convulsion deep in the ground. 89. An earthquake (A) is (B) that is (C) as (D) although 90. Kenyon Cox, an art critic and painter, best known for his murals, portraits, and decorative designs in public buildings throughout the United States. (A) who is (B) he is (C) is (D) and he is

第三小題錯在哪裡

3.)* True/false: Find the incorrect conclusions from the following sentences and correct them. (12 points) b H2 •T2 H An ideal gas changes its states isothermally through a chemical reaction. AH is zero because AH is equal to Cp x AT. H TI ® The pressure change does not contribute to the energy state (U or H) of ideal gases. P * Figure 1 is correct for illustrating the enthalpy state of real gases. Fig. 1 AT1 ATL+1a na:daalraa ahonnan kantot fo. U +- IT 1.1 D1

請問B、D選項 什麼是混合態？

(AD 12. 下列關於溶液的敘述,何者正確? (A)溶液必呈均匀相 (B)寒冷 時,呼出的白煙是空氣與小水滴所形成的混合態,其中水為溶劑(C) 濃度95%的乙醇水溶液中,乙醇量較水多,故為溶劑(D)鐵粉加於

請問化學🙏

Fe = 0 =2-3 3 CHEM 23 13 9. (A) Fe2O3 (8) FeO(氧化亞鋪) (C) Fe2O3 (1) eCO2(姜) 二物何者不同?(A)同重時,燃燒所需氧重(B)結構式(C)實驗式 (D)分子式。 ( B B)母有關鐵之化合物,下列何者含鐵之百分組成最高?(A)氧化鐵(1) 鐵, (B)氧化鐵(II) (C)四氧化三鐵 (D) FeCO3。 LATE (R)鑽石(C)水(D)

排列組合 想問第19題為什麼不能直接這樣寫

「用度目標己的松鼠數量之期望值為1 (5)若m=10,c=10,r=2,則可估計大約為50 |||| ||| n mlmt2n-1)=b2 = 31+2 the m= 31. & mtan-1=2 she m = 24 mtan-1=31 2n=70, n=15 ) 书 18 一條鐵路原有n個車站,若新增m 個車站後(m>1),火車票因此增加62 種(A站到B站與B 站到4站為兩種不同車票),則原有5 個車站。 19 +2 Lua C2 C2 Geth Ch 12 th chem , 素養題 霍格華滋高中舉辦校慶,現有10名志願者擔任接待工作。若有早、中、晚三班,每班2人,每 人最多值一班,校慶當天有一種不同的排班方法。 012 86 素養題 18900 20 文山營養餐廳的菜單中分為主餐、湯品、飲品、甜點四大類,其中主餐又分為排餐與飯麵兩 類,甜點分為正式與西式兩類,其菜單如下: 主餐 湯品 飲品 甜點 排餐 飯麵 口玉米濃湯 口咖啡 中式 西式 口牛排 口排骨飯 口南瓜濃湯 口紅茶 口紅豆餅 口小蛋糕 口豬排 口牛肉麵 口綠茶 口綠豆糕 口奶酪 口檔檬汁 口布丁 口雞排 彥成看到菜單後,打算選一樣主餐,湯品或飲品選其中一樣,再選一樣甜點作為今日午餐, 果他選了排餐,就一定選湯品和 西式甜點;如果選了飯麵,就一定選中式甜點,但是如果主 則彥成午餐的點法有 38 種 素養 o 三呢,