Hi, I 'm Peter. This is the photo of my family. My grandfather is with glasses. He has little hair. The one standing next to him is my father. He is wearing a cap. My grandmother has gray hair. She is a kind woman. She is holding my younger sister. She has short curly hair. The woman standing behind me is my mom. She has straight( 笔直的 ) brown hair. There is a little boy sitting on the table. His name is Paul. He is my brother. He is wearing a green T-shirt and a pair of green socks. It's his favorite color. Which one is my uncle? Well, he is wearing glasses, too. He is in brown shorts and brown shoes. His name is Sam. Now, do you know where he is?

请指出下列过程需要破坏的作用力

①离子键  ②极性共价键 ③非极性共价键 ④氢键 ⑤分子间作用力

（1）干冰熔化　 ____　；   

（2）氢氧化钠溶于水　 ____　；

（3）过氧化钠溶于水　 ____　；

（4）氯化氢气体溶于水　　 ____；

（5）冰熔化　 ____　．

分析说明：聚焦“乡村文明行动”

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