Water is added to a test-tube containing dilute sulphuric ac

我在学2022-10-04 11:39:542条回答

Water is added to a test-tube containing dilute sulphuric acid of pH 4.
What could be the pH of the resulting solution?
A 8 B 6 C 4 D 2

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stonechan101 共回答了15个问题 | 采纳率86.7%
B 加水可以使硫酸的ph值升高,但不会超过7
1年前
9d454241db0414b9 共回答了3个问题 | 采纳率
A
1年前

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Altaderm Ointment 也就是 Emulsifying Ointment B.P. 俗称猪油膏,主要是治疗干燥皮肤症状主要成分有:乳化蜡、凡士林和液体石蜡.
信用证条款翻译all presentations containing discrepancies will deduc
信用证条款翻译
all presentations containing discrepancies will deducted from the bill amount whether or not we elect to consult the applicant for a waiver
没超疯团_kazu1年前2
shanji1026 共回答了16个问题 | 采纳率87.5%
单据有不符点的扣费问题。意思就是只要有不符点就扣费,不废话。
英语翻译what could happen to a clone of a lant containing a larg
英语翻译
what could happen to a clone of a lant containing a large number of individuals if a virus affecting that plant was to appear?
只爱ZJ1年前2
flytear0215 共回答了17个问题 | 采纳率100%
如果某种植物将会感染一种致命病毒,并且在大量克隆植物体内传播,将会发生什么?
求翻译:contains cereals containing gluten and tree nuts .May co
求翻译:contains cereals containing gluten and tree nuts .May contain traces of soy and miik
cabbin0071年前1
wyh012cm 共回答了22个问题 | 采纳率86.4%
包括含有麸质的谷类和坚果,可能含有微量的大豆和miik
Treatment of pharmaceutical wastewater containing antibiotic
Treatment of pharmaceutical wastewater containing antibiotics by O3 and O3/H2O2 processes求翻译,不要翻译软件
娃哈哈l111年前4
zxb-sunhj 共回答了14个问题 | 采纳率92.9%
人工译文:
采用O3与O3/H2O2工艺处理含抗生素的制药废水.
made of 与consisted of 与containing这些做定语时有什么区别,麻烦具体讲.
made of 与consisted of 与containing这些做定语时有什么区别,麻烦具体讲.
还有这道题时该选什么.A greenhouse()glass is used for growing plants.选项就是刚才三个,麻烦你咯.用法要具体点.
wangjun_09141年前1
金笔灵芝 共回答了15个问题 | 采纳率93.3%
选A
A:用...做的
B:由.组成
C:装着,包含着.
关于including和containing的用法
关于including和containing的用法
I bought three books this morning,( )an English story book.
ddrddrddr01年前1
塞外胡人 共回答了21个问题 | 采纳率81%
答案是including 包括 containing是包含 例如大海含有盐啊
1,a short passage containing the main ideas of a longer one
1,a short passage containing the main ideas of a longer one 2,the ending of something
以s_ _ _ _ _ _
r_ _ _ _ _
根据意思写单词
xue_ni1年前1
蓝玫瑰之吻 共回答了16个问题 | 采纳率87.5%
1.summary
2.还有什么其他线索吗?肯定是6个字母?
John had a very good day and put his wallet containing $3000
John had a very good day and put his wallet containing $3000 into the micro oven for satekeeping
The wallet contained $3000 from the day's business
为什么第一句话里用的是containing,第二句话里用的是contained
John put his wallet into the microwave oven( )
A.to keep it safe B.for keeping safe C.for the safety D.to be safe keeping 应该选哪个?为什么?
3L的兄弟,怎么只答了一半啊?还有道选择呢
我自横刀笑1年前6
iijho 共回答了15个问题 | 采纳率100%
第一句话里面主干是:John put his wallet into the micro oven .
而containing 3000 只是作为后置定语修饰限定名词wallet而存在的.
第二句话里面contain 是做谓语动词使用 ,然后整个句子的时态又是过去时 ,所以contain 要变成其过去时contained.
contain和containing的区别和用法,
tianchunming86621年前2
乌拉- 共回答了7个问题 | 采纳率85.7%
这两个词的用法就是语法上的用法区别,containing应该是现在分词,如:
This map contains the maps of 4 countries.
This map is very good, containing the maps of 4 countries.
信用证,一句话ANY SET OF DOCUMENTS CONTAINING DISCREPANCIES AND PRE
信用证,一句话
ANY SET OF DOCUMENTS CONTAINING DISCREPANCIES AND PRESENTED TO US UNDER THIS DOCUMENTARY CREDIT,WILL BE CHARGED WITH A FEE OF EUR 10000OR EQUIVALENT AT FINAL PAYMENT TO COVER THE EXTRA WORK INVOLVED THIS CHARGE IS FOR ACCOUNT OF BENEFICIARY AND WILL BE DEDUCTED FROM ANY AMOUNTS TO BE PAID
什么意思?
wx大盗1年前1
pphr 共回答了12个问题 | 采纳率91.7%
如果提交的单据有不符点,付款时将被扣款EUR 10000或者相关的费用...由受益人支付此费用
How many helium atoms are there in a helium blimp containing
How many helium atoms are there in a helium blimp containing 539kg of helium?
是问539kg的氦气 有多少个氦原子吗?
金丫丫1年前1
49601990 共回答了15个问题 | 采纳率80%
He 单原子分子
氦原子质量=4.002 602 x 1.667e-27kg =6.672e-27kg
539kg / 6.672e-27kg = 8.0785e28 个氦原子
food containing too much fat里面 (containing too much fat)作什么成
food containing too much fat里面 (containing too much fat)作什么成分?是分词做后置定语吗?
It's not good for your health to eat food containing too much fat.还有别的什么情况,请详细一点.
随便_1年前2
liqian4008 共回答了17个问题 | 采纳率88.2%
对的,这里是现在分词作后置定语.
可以将此句变为定语从句,即
It's not good for your health to eat food (that contains too much fat ) .
因为这里food与contains构成主动关系,即 food contains too much fat .
所以可以将其变为现在分词的形式,作后置定语.
同理,如果逻辑主语和从句中的谓语构成被动关系,则,应用过去分词作后置定语表被动.
如果表示将来发生的事情,用动词不定式做后置定语.
例句:
1,Because of the bad weather,the sports meeting ( to be held next week ) will be put off .
动词不定式做后置定语表将来;
2.The sports meeting (held)last week was a great success .
过去分词作后置定语表被动.
【表示学校要开运动会了搞得我神经紧张……
John had a very good day and puthis wallet containing $3,000
John had a very good day and puthis wallet containing $3,000 into the microwave oven for safekeeping.
containing和safekeeping
为什么是ing形式?
zhangyuzy261年前4
遗忘了翅膀的鸟儿 共回答了15个问题 | 采纳率86.7%
containing是对wallet的补充 所以用ing
safekeeping是在介词for的后面 所以ing
When solutions containing 1.00 g of BaCl2 and 1.00 g of Na2S
When solutions containing 1.00 g of BaCl2 and 1.00 g of Na2SO4 were mixed,solid
BaSO4 formed.The BaSO4 precipitate was filtered out of the solution,allowed to
dry,and then weighed.The mass of BaSO4 that was isolated from solution was
1.04 g.Use this information to answer the following questions.Pay close attention
to the proper use and reporting of significant figures and units.You must show all
of your work (i.e.,your calculations) for full credit.
(b) Calculate the moles of BaCl2 that are available for reaction.
(c) Calculate the grams of BaSO4 that should form if all of the available BaCl2
reacts.
(d) Calculate the moles of Na2SO4 that are available for reaction.
(e) Calculate the grams of BaSO4 that should form if all of the available Na2SO4
reacts.
(f) Which reactant (BaCl2 or Na2SO4) is the limiting reagent in this reaction?
Why?
(g) What is the theoretical yield of BaSO4?
(h) What is the percent yield of BaSO4?(See Section 4.3 of your textbook for
information regarding the calculation of a percent yield.)
(i) If this reaction went to completion,then how many grams of the excess reagent
should remain after the reaction is complete?
用英文回答上面的问题
咖啡骑士1年前1
emituofusxly 共回答了18个问题 | 采纳率100%
) 1.00/208.23 = 0.00480 mol
c) 0.00480*233.43 = 1.12g
d) 1.00/142.04 = 0.00704
e) 0.00704*233.43 = 1.64g
f) BaCl2 is the limiting reagent,since it's availability is lower at 0.00480mol.
g) The theoretical yield is 1.12g.
h)1.04/1.12 * 100% = 92.9%
i) There will be following amount of NaSO4:
(0.00704-0.00480)*142.04 = 0.318g
想了解基因CCDC55 coiled-coil domain containing 55是什么功能,小弟英文不才,
璐瑶J1年前2
zhang_2958 共回答了29个问题 | 采纳率93.1%
该基因有一个高度保守的区域,从真菌到人,序列很近,编码130个氨基酸残基(螺旋结构).目前对其具体功能还没有研究.
保守序列的比对在此
http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=pfam09745
人的mRNA全序列:
http://www.ncbi.nlm.nih.gov/nuccore/NM_032141.2
he had put his wallet containing the day's takings into the
he had put his wallet containing the day's takings into the oven for safekeeping.这里的
day's是什么用法
steven_pan1年前2
ljh0 共回答了14个问题 | 采纳率92.9%
意思是:他已经把装有一天营业收入的钱包放进箱子里来安全保管.
day是名词,“一日,白天”,day's是变成所有格形式“一天的”,后面接了名词taking(营业收入).词类用法众多,又如:Li Lei's book 名字变成所有格形式,意思是“李磊的书”
求it makes the skin bright clear and elastic with containing.
求it makes the skin bright clear and elastic with containing.Herb exteact for visible sign of skin
老鬼1231年前2
只爱靓妹 共回答了17个问题 | 采纳率100%
其实你应该写错一个单词extract 精华的意思还不是exteact.哈哈 这段话 肯定来自什么护肤品吧.意思是,这个包含植物精华的产品会给肌肤带来非常显著的变化,让肌肤亮白、清爽有弹性~什么品种的化妆护肤品啊 我可以给点意见哦 女生嘛~
2 g of sample added to beaker containing 50 mls of water.5 m
2 g of sample added to beaker containing 50 mls of water.5 mls of c HNO3 added.Beaker swirled to
du19791年前1
qq631007 共回答了14个问题 | 采纳率92.9%
两克样品加入到装有20毫升水的烧杯中.再加入五毫升硝酸,烧杯搅动
英翻中,在线等①CFU per milliliter for the flask containing the trea
英翻中,在线等
①CFU per milliliter for the flask containing the treated substrate after 24h contact time
②CFU per milliliter for the "inoculum only"flask after 24h contact time
③CFU per milliliter for the flask containing the untreated substrate after 24h contact time
不要翻译器翻译的...我自己拿翻译器试过了,都不对...
这是个抗菌试验的结果报告里出来的,都是测试项目...
望英语牛人速来解答~
龙yumi1年前1
zest_0169 共回答了14个问题 | 采纳率92.9%
24小时接触时间后烧瓶中每毫升含有已处理过的培养基的CFU的数量
24小时接触时间后仅接种菌剂烧瓶内每毫升CFU数量
24小时接触时间后烧瓶中每毫升含有未处理过的培养基的CFU的数量
很多专有名词,试着帮你翻译了一下,你看还能理解吗?
不难我只是想要标准的解答过程,怎么设方程,怎么写A solution containing 35% fungicide
不难
我只是想要标准的解答过程,怎么设方程,怎么写
A solution containing 35% fungicide is to be mixed with a solution containing 75% fungicide to make 200L of a solution containing 69% fungicide.How much of the 75% solution should be used
就一设35%的为X 75%为Y x+y=200
35%x+75%y=69%*200
再解方程组就可以了
索尔011年前1
天外来客88 共回答了19个问题 | 采纳率89.5%
也就是把含量35%和75%的两种消毒剂混合制成一个200毫升的含量69%的溶液...嗨...我数学嗨真就不好...还真就不会做...你翻译成汉语再问问别人吧,问出答案我告诉你怎么写...
翻译containing noun clauses什麽意思?
到底有真爱吗1年前3
xian521 共回答了15个问题 | 采纳率93.3%
包含名词性从句
σd平面什么意思,求翻译Plane containing the principal axis, and bisecti
σd平面什么意思,求翻译
Plane containing the principal axis, and bisecting the included angle of the C2axes perpendicular to the principal axis
流爱MM1年前1
df其d事地 共回答了21个问题 | 采纳率85.7%
平面有一条主轴,C2轴是夹角的角平分线,它垂直于主轴.