How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask R.R. Jha Your Own Question

R.R. Jha
R.R. Jha, Tutor
Category: Homework
Satisfied Customers: 5471
Experience:  B.Tech
Type Your Homework Question Here...
R.R. Jha is online now
A new question is answered every 9 seconds

The following are some chemistry questions.All mutiple questions.They

This answer was rated:

The following are some chemistry questions.All mutiple questions.They are very easy.But I have no time to do it because I got 4 exams in this week. I hope someone can help me to finish it.
1.All of the following elements are nonmetals except
a. carbon.b. beryllium.c. hydrogen. d. oxygen.
2.Which type of formula provides the most information about a compound?
a. empirical b. molecular c. simplest d. structural e. chemical
3.The name for the compound MgCO3 is _______________. The name for the compound MgCO3 is _______________.
4.Which of the following is a binary compound?
a. H2SO4 b. H2S c. NaOH d. O2 e. HCN
5.Name the following binary compound: Fe2O3.
6.A correct name for Fe(NO3)2 is __________.
a. iron nitrite b. ferrous nitrite c. ferrous nitrate d. ferric nitrite e. ferric nitrate
7.The substance, KClO3, is a strong oxidizer used in explosives, fireworks, and matches. What is its name?
a. potassium chloride b. potassium(I) chlorate c. potassium(I) chlorite d. potassium chlorite e. potassium chlorate
8.Which of the following compounds contains an ionic bond?
a. O2 b. HCl(g) c. SO2 d. NaCl e. CCl4
9.The correct formula for lead(II) sulfite is
a. Pb2SO3 b. LSO4 c. PbSO4 d. PbSO3 e. L2SO4
10.The correct formula for lead(IV) nitrate is
a. Pb(NO3)4 b. Pb4NO3 c. Pb2(NO3)4 d. PbNO3 e. Pb(NO3)2
11.Which of the following elements forms the most ionic bond with chlorine?
a. I b. K c. P d. Ga e. Ar
12.In the Lewis structure for SF6, the central sulfur atom shares __________ electrons.
a. 12 b. 10 c. None of the above, because SF6 is an ionic compound. d. 8 e. 4
13.Choose the compound with the most ionic bond.
a. LiF b. KF c. NaCl d. LiCl e. KCl
14.Using the VSEPR model, the molecular geometry of the central atom in XeF4 is __________.
a. tetrahedral b. seesaw c. square planar d. trigonal bipyramidal e. square pyramidal
15.Draw the Lewis structure for NO2 including any valid resonance structures. Which of the following statements is TRUE?
a. The nitrite ion contains one N-O single bond and one N=O double bond.


c. The nitrite ion contains two N=O double bonds.

d. The nitrite ion contains two N-O single bonds.

e. None of these are true.
16.Predict the geometry and polarity of the CS2 molecule.
a. Linear, polar b. Linear, nonpolar c. Bent, nonpolar d. Tetrahedral, nonpolar e. Bent, polar

17.A molecule containing a central atom with sp2 hybridization has a(n) __________ electron geometry.
a. linear b. trigonal bipyramidal c. trigonal planar d. tetrahedral e. bent

18.Which of the following molecules is non-polar overall?
a. OCl2 b. SF4 c. SF2 d. CCl4 e. H2S
19.What is the coefficient of H2O when the following equation is properly balanced with the smallest set of whole numbers?
___ Na + ___ H2O ? ___ NaOH + ___ H2
a. 1 b. 2 c. 3 d. 4 e. 5
20.When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type?

Pb(NO3)2 + K2CO3 PbCO3 + KNO3

a. 2 b. 3 c. 4 d. 1 e. 5

21.Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: CH3OH (methanol).

22.Identify the major ionic species present in an aqueous solution of K2SO4.

a. 2K+, SO42– b. K2+, S6+, 4O2– c. K2+, S6+, O48– d. 2K+, S6+, 4O2–
e. 2K+, S6+, O48–
You can view this answer by clicking here to Register or Login and paying $3.
If you've already paid for this answer, simply Login.
R.R. Jha, Tutor
Category: Homework
Satisfied Customers: 5471
Experience: B.Tech
R.R. Jha and 2 other Homework Specialists are ready to help you
Customer: replied 5 years ago.

It is my mistake.

Pb(NO3)2+K2CO3 - PbCO3+KNO3

I got the answer. The numer is 2. Thanks a lot.

You're welcome, and thanks for the feedback.
I'd be glad to help you with more questions. You may send the request to me by adding 'For RRJha' before your question.

Customer: replied 5 years ago.

Are you there?Are you working on my homework assignment?

I saw your another assignment, but there are too many questions and many of them requiring numerical calculations. So, I've left it open to other experts.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Previous | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX

Meet The Experts:

  • LogicPro



    Satisfied Customers:

    Expert in Java C++ C C# VB Javascript Design SQL HTML
< Last | Next >
  • LogicPro's Avatar



    Satisfied Customers:

    Expert in Java C++ C C# VB Javascript Design SQL HTML
  • Manal Elkhoshkhany's Avatar

    Manal Elkhoshkhany


    Satisfied Customers:

    More than 5000 online tutoring sessions.
  • Linda_us's Avatar


    Finance, Accounts & Homework Tutor

    Satisfied Customers:

    Post Graduate Diploma in Management (MBA)
  • Chris M.'s Avatar

    Chris M.

    M.S.W. Social Work

    Satisfied Customers:

    Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
  • F. Naz's Avatar

    F. Naz

    Chartered Accountant

    Satisfied Customers:

    Experience with chartered accountancy
  • Bizhelp's Avatar



    Satisfied Customers:

    Bachelors Degree and CPA with Accounting work experience
  • Seanna's Avatar



    Satisfied Customers:

    3,000+ satisfied customers, all topics, A+ work

Related Homework Questions