题干

将物质X逐渐加入(或滴入)Y溶液中,其生成沉淀的量与加入X的物质的量关系如下图所示,符合图示情况的是(   )

A

B

C

D

X

CO2

HCl

NaOH

AlCl3

Y

Ca(OH)2

NaAlO2

AlCl3

NaOH

A:A  

B:B  

C:C  

D:D

上一题 下一题 0.0难度 选择题 更新时间:2018-05-07 07:40:08

答案(点此获取答案解析)

C

同类题5

阅读理解

Hello friends,

    This is Christmas Week, when you may have any emotions of happiness or sadness, pain or panic, fears or frustrations. Put the negative emotions aside and focus on building better relationships with our tips below.

    Relationship Tips for Getting Along at the Holidays

    1). Speak Your Love in Words. The best gift you can give another person is words of praise, thankfulness, and appreciation from your lips.

    2). Hear What Your Friends and Family are Voicing Their Stress. Listen carefully to those around you -- a gift that will lower their stress.

    3). Center Your Heart. Focus on the true, deeper meaning of the holiday season. This will help everyone become easier to get along with because the heart of Christmas will remain whole.

    4). Ask those who are celebrating with you what their expectations are. Communicate the plans clearly so people feel informed.

    5). Be prepared for changes. Don't be a Christmas Scrooge ordering family around. Instead slow the pace, be agreeable, and give choices so that you create an environment of connecting and sharing.

    6). Take Time for being Romantic. The greatest gift you can give your husband or wife, children, and friends is harmony at home.

    7). Express Your Joy. Make memories (and take lots of pictures) by making the most of all your relationships. Capture the best moments with your camera.

    Get the rest of the10 Holiday Tips from each of 14 Experts like this in Simplify Your Holiday Season, available HERE. Get one of the 50 free copies on a first-come, first-served basis or a 50% discount off $30 by Jan 1.2017.

    Mark Your Calendar(日历) for January 4 & 5 our free next online workshop "New Year, New You: Maximize Your Time, Minimize Your Weight."

    Have a very lovely Christmas and Happy New Year! I hope I prepared you well for Christmas, since over 1,000 people downloaded my 8 week Holiday Plan. I hope you were one of them and are peaceful and ready.

Warmly,

Marcia Ramsland, The Holiday Coach

www.OrganizingPro.com/Holidays

"Coaching Busy People to Make Every Day Count!"