题目

A: Hello, what can I do for you?B: Hello. I can’t find my schoolbag.A: Let me help you. 【1】?B: It’s dark blue. And my name card is on it.A: 【2】?B: Yes. A-L-I-C-E. Alice.A: 【3】?B: A pencil case, a Peppa Pig toy and two notebooks.A: Oh, Tom found it this moming. But he is not here now. You can call him to get it.B: Okay. 【4】?A: It’s 887-6656.B: Thank you very much.A: 【5】. 答案：【答案】【1】What color is it?【2】Can you spell it, please?【3】What's in it?【4】What's his telephone number?【5】You're welcome.【解析】本对话是关于寻找丢失的书包。【1】句意：它是什么颜色的？根据下文“It's dark blue.（它是深蓝色的。）”可知问句是询问颜色，问句是“它是什么颜色的？”；故答案为What color is it?根据反应8NH3+3Cl2=6NH4Cl+N2，回答下列问题：（1）该反应的氧化剂是 ，还原剂是 （2）氧化剂与还原剂的物质的量之比为 （3）当有34gNH3被氧化时，参加反应的氯气的质量为 g．