第24題為什麼選c

Ar 20. (A) into 第21 至 25 題為題組 Hair usually gets greasy when it has not been washed because it soaks up oil-hence the need for shampoo! 21 this oil-absorbing feature might not always be so great for our hygiene, it can be great for the environment. (A) equipment Matter of Trust, a nonprofit organization, has an innovative solution for removing the large-scale oil 10 26 spill in the Gulf of Mexico in 2010, using the ultimate renewable 22 human hair, of which there is an unlimited supply. Since its founding in 1998, Matter of Trust has collected donations of human hair and animal fur to 23 the thousands of oil spills that happen each year. The hair and fur are made into mats and brooms and sent to 24 waters to absorb the oil. √2B (A). №24. (B) without Across the United States each day, 300,000 pounds of hair and fur are cut. Matter of Trust is helping organize the collection of this 25 hair and fur through thousands of salons, pet groomers, and ranchers. Individuals can also speak to local hair stylists and pet groomers about sending in leftover hair and fur. 21. (A) For B (B) While (C) In case (D) As long as (C) product (B) ingredient (B) clean up after (D) resource 鄙視 (D) look down upon (C) run out of (B) polluting (C) polluted (D) pollution (B) overthrown (C) excluded (D) disconnected get away with (C) under 24. (A) pollute (D) beyond 25. (A) unneeded T - 2 -

求問這題的c小題

4. A solid mixture of Na2SO4 and K2SO4. A 0.205 g of sample of the mixture is dissolved in water. A excess of an aqueous solution of BaC12 is added. The BaSO4 is formed is 0.289 g. a. What mass of SO4-2 ion is in the sample? b. What is the mass percent of SO4-2 ion in the sample? c. What are the percent compositions by mass of Na2SO4 and K2SO4 the sample? a. 0.123 g of SO4-2 ion b. 60% of SO4-2 ion c. the mixture is 61% K2SO4 and 39% Na2SO4

請問c7.的domain和range 是這樣寫嗎？

f(x1= Di R x 2 -2 YER X20 TECH TUTOR is the range range of f1 is the domain of f, which 2.00). ✓ Checkpoint 7 Worked-out solution available at LarsonAppliedCalculus.com Find the inverse function of f(x) = x² + 2 for x ≥ 0. After you have found an inverse function, you should check your results. You can ƒ-¹ are reflections check your results graphically by observing that the graphs of ƒ and

Solution formula and how to do this

問題 明霖盃數學競試共有 25 題,每答對一題 得6分,未作答者不 給分,答錯一題倒扣 2分,右表是小明與小華作答的情形,試算 兩人的成績相差多少分? 答對 答錯 未答 5 2 2 3 小明 18 | 小華 20

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

請問這題PH值要怎麼求出來呢 算到這裡就接不下去了 謝謝😭

AIC13 (S) Calculate the pH of a 0.010 M aluminium chloride solution. The Ką value for Al(H₂O)6³* is 1.4 × 10³. (A) pH=1.35 (B) pH=2.38 (D) pH=4.31 (E) pH=5.36 (C) pH=3.43 AlCl3 = Al³+3c1 0.01 AI(H₂0)6+ H₂0A1 (H₂0)3 + H30* x X=0.0037 -3 X = 1.4×10²

請問這題這樣算錯在哪呢@@重看了幾遍還是想不出少了什麼

=0.01875 mol Mg02416-40 D (D) 1. If 0.750 grams of magnesium oxide is placed in a coffee-cup calorimeter and then 100.0mL of 1.00 M HCI is added, the temperature of the HCI solution increases from 22.8°C to 28.7°C/Based on this information, calculate the enthalpy change for this reaction per mol of MgO. You may assume that the specific heat of the solution is 4.20 J/g. K and the density of the HCI solution is 1.00 g/mL. (A) -2.54 kJ/mol (B) -29.8 kJ/mol (C)-65.3 kJ/mol (D) -134 kJ/mol

請問這題我這樣計算是正確的嗎？ 我直接拿PV=nRT把溶解度給的毫升代進去算出莫耳數 還是有其他正確解法呢TT謝謝🙏

D& mo The aqueous solubility of O₂ 44.8 mL per liter. What is the molarity of O₂ in a standard water solution when the O₂ is under its normal partial pressure in air in 0.20 atm? 0.2x (44.8x10³) = 18.082x298 =) n = 3x104. (A)1x10 4M (B)2x10-4M 4x10 M 3.6~4. PX=nRX Pin x10 M Poz=0₁2 S= 44,8 ml/ # E5x10-4M 10 9

綠色螢光筆的不是很了解 1. 為什麼會有5呢？ 2. 為何要加52000

dand 2. (LO 3, 4) On January 1, 2020, Hayslett AG had the following equity accounts. Share Capital-Ordinary (€10 par value, 260,000 shares issued and outstanding) Share Premium-Ordinary Retained Earnings During the year, the following transactions occurred. April 1 May 1 June 1 Aug. 1 31 Dec. 1 Declared a €1.50 cash dividend per share to shareholders of record on April 15, payable May 1. Paid the dividend declared in April. Announced a 2-for-1 share split. Prior to the split, the market price per share was €24. Declared a 10% share dividend to shareholders of record on August 15, distributable August 31. On August 1, the market price of the shares was €10 per share. Issued the shares for the share dividend. Declared a €1.50 per share dividend to shareholders of record on December 15, payable January 5, 2021. Determined that net income for the year was €600,000. 31 Instructions Solution 2. a. Apr. 1 May 1 June 1 Aug. 1 31 Dec. 1 31 1 Cash Dividends (260,000 × €1.50) Dividends Payable Dividends Payable Cash No journal entry needed for share split Share Dividends (52,000* × €10) Ordinary Share Dividends Distributable (52,000 × €5) Share Premium-Ordinary (52,000 × €5) *520,000 x.10 Ordinary Share Dividends Distributable Share Capital-Ordinary Cash Dividends (572,000** × €1.50) Dividends Payable **(260,000 × 2) + 52,000 Income Summary €2,600,000 1,500,000 3,200,000 Retained Earnings Retained Earnings Share Dividends Cash Dividends (€390,000+ €858,000) 390,000 390,000 520,000 | 260,000 858,000 600,000 1,768,000 390,000 390,000 260,000 260,000 Prepare dividend ent section. 260,000 858,000 600,000 520,000 1.248,000 14. Luz (a) r equ 15. pre 16- 17 for 18

1. The doctor's prognosis for the patient's condition was __________, giving little hope for recovery. a) pessimistic b) optimist... 繼續閱讀