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English Senior High

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D) LANGUAGE PRACTICE Should and have to Suggestion What should I do? You should try yoga. You shouldn't eat so much fast food! Should I drink more water? Yes, you should. Complete the sentences with should, shouldn't, have/has to, or don't/doesn't have to. 1. To be healthy, we 2. I have a car, so I 3. You 4. My sister is really busy. She should sleep seven or eight hours every night. walk to work. But I still walk for exercise. drink so much soda every day. It's bad for you. 3. You should get some fresh air 4. You shouldn't exercise Grammar Reference page 130 Obligation What do I have to do? You have to read these books. You don't have to do anything! Do I have to pay for the class? No, you don't. 2 Match the information to make complete sentences. 1. We have to pay the fees_e 2. Should we warm up 5. You don't have to go on a diet 6. How much do we have to pay I think people should exercise every day. write ten essays before the semester ends. Unreduced 1. He has to eat first. 2. I have to leave early. 3. She has to go now. 4. They have to pay. a. before we exercise? b. to lose weight. c. after a big meal. d. because you've been indoors all day. e. before we take the class. f. to join the gym? 3 PAIR WORK. What should people do to have a healthy lifestyle? List five things. Then discuss your ideas with your partner. ONLINE PRACTICE Every day? That's too much! PRONUNCIATION-Reduction of has to and have to 1 Listen. Notice the reduced sounds of has to and have to. Reduced He hasta eat first. I hafta leave early. She hasta go now. They hafta pay.

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Chemistry Senior High

(d)(e)についてなんですが弱酸でも中和反応なら少しずつ電離していって最終的には電離するから同じモル濃度の同体積を混合した時、価数の多い方の酸塩基が残る、と解釈したんですがそれなら右上の塩の水溶液の性質の表が成り立たないんじゃないかって思ってます、、、どなたか解説お願いし... Read More

150 (a),(d) HO HOOD HO-OH Key Point 酸と塩基がちょうど中和したときの液性は生じた塩の水溶 液の性質で決まる。 解法(a) 1価の強酸と1価の弱塩基⇒塩化アンモニウム水溶液にな り,加水分解して酸性を示す。 面 NH4+ + H2O NH3 + H3O+ (b) 1価の強酸と1価の強塩基 硝酸カリウム水溶液, 中性。 (c) 1価の弱酸と1価の強塩基⇒酢酸ナトリウム水溶液になり 加水分解により塩基性を示す。 HOM CH3COO¯ + H2O ←CH3COOH + OH¯ (d) 2価の弱酸と1価の強塩基⇒同じモル濃度の同体積を混合 した溶液ではシュウ酸が残るので酸性。 (e) 1価の強酸と2価の強塩基⇒同じモル濃度の同体積を混合 した溶液ではCa(OH)2が残るので塩基性。 09F 151 ① 酢酸イオン (CH3COO-) ②水素イオン (H+) ③弱酸と強塩基 ④強酸 ⑤弱酸 ⑥ 強酸と強塩基 (1) 2CH3COONa + H2SO4 2CH3COOH + Na2SO4 (2) CaCO3 + 2HCI MODO HO センサー - → CaCl2 + H2O + CO2 Key Point (1) 弱酸と強塩基の塩に強酸を加えると, 弱酸が遊離し,強 酸と強塩基の塩が生じる。→弱酸遊離 (2) 弱塩基と強酸の塩に強塩基を加えると, 弱塩基が遊離し,強酸と強 塩基の塩ができる。→弱塩基の遊離 ●塩の水溶液の性質 酸 塩基水溶液 強酸 強塩基 中性 強酸 弱塩基 酸性 弱酸強塩基 塩基性 Nom Mor 90, Mon 01x). Bar 8 酸・塩基の中和と塩 55

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