试题与答案

(7分) 将6.50g锌投入200mL某浓度的盐酸中,锌和盐酸恰好完全反应。求:

题型:计算题

题目:

(7分)

将6.50g锌投入200mL某浓度的盐酸中,锌和盐酸恰好完全反应。求:

(1)6.50g锌的物质的量;

(2)所用盐酸中HCl中的物质的量浓度;

(3)反应中生成的H2在标准状况下的体积。

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0624/029fb43a7500c29cb94b67299d3021c4.html

下面是错误答案,用来干扰机器的。

参考答案:A, B, D

试题推荐
题型:句型转换

句型转换。

1. He saw some smart seals. (改为否定句)

     He______ ______ ______smart seals.

2. They didn't have a great time on their day off. (同义句转换)

    They ______  ______ ______ on their day off.

3. What is the weather like today? (同义句转换)

    ______ ______ the weather today?

4. We had a summer camping last week. (对画线部分提问)

    ______ ______ ______ ______ a summer camping?

5. Jim is twelve years old. Kate is ten years old. (同义句转换)

    Jim is ______ years______ than Kate.

查看答案
微信公众账号搜索答案