
初三上 第二章 碱和盐

Quiz
•
Science
•
7th - 9th Grade
•
Medium
YEE HANG余浩瀚
Used 665+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
电离时,产生的负离子全部为氢氧根离子(OH-)的化合物称为?
酸
甜
碱
苦
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
碱能使紫色石蕊试剂和酚酞变什么颜色?
红,红
紫,红
蓝,紫
蓝,红
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
下列哪些是碱的通性?
能使酸碱指示剂变色
能与某些非金属氧化物反应
能与金属氧化物反应
能与某些盐反应
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
固态氢氧化钠,吸收了空气中的水分而使得表面溶解的现象称为?
潮湿
潮解
潮汐
潮牌
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
氢氧化钙暴露在空气中会与下列哪些物质发生反应?
二氧化碳
二氧化氮
二氧化钛
二氧化硫
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
氢氧化钠溶液的 pH>7,如果加入少量盐酸,溶液pH值会有什么变化?
=7
<7
接近7
>7
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
中和反应的实质是什么?
氢离子和氢氧根离子结合生成水
产生新的酸
产生新的碱
有沉淀物
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