Homework

Homework Questions? Ask a Tutor for Answers ASAP

Connect one-on-one with {0} who will answer your question

Related Homework Questions
18. An electrochemical cell is prepared by coupling the
18. An electrochemical cell is prepared by coupling the following half- reactions Al+3(aq) + 3 e- à Al(s) Eo = -1.66 volts Cu+2(aq) + 2 e- à Cu(s) Eo = +0.34 volts The free energy change (expressed in… read more
Jaun
Jaun
Lecturer
Master's Degree
1,070 satisfied customers
1. What is/are one of the environmental waste products of
1. What is/are one of the environmental waste products of nuclear energy? A. Greenhouse gases B. Eutrophic water C. Acid rain D. Radioactive isotopes2. What marked the end of the Precambrian period? A… read more
Chris M.
Chris M.
M.S.W. Social Work
Master's Degree
2,850 satisfied customers
1. What is/are one of the environmental waste products of
1. What is/are one of the environmental waste products of nuclear energy? A. Greenhouse gases B. Eutrophic water C. Acid rain D. Radioactive isotopes2. What marked the end of the Precambrian period? A… read more
Chris M.
Chris M.
M.S.W. Social Work
Master's Degree
2,850 satisfied customers
If $2,000 is invested at 6% compounded continuously, how
If $2,000 is invested at 6% compounded continuously, how long (rounded to the nearest year) will it take for the investment to grow to $5,500?… read more
akch2002
akch2002
Master's Degree
3,134 satisfied customers
A radioactive sample with an initial mass of 35 mg has a
A radioactive sample with an initial mass of 35 mg has a half-life of 3 days. Which of the following equations models the exponential decay for time, t, in days? … read more
Sandhya
Sandhya
Master's Degree
5,618 satisfied customers
hey cher ( ex 7) With increasing atomic number, the atomic
hey cher ( ex 7) With increasing atomic number, the atomic size of elements? a) increases gradually with periodic sudden drops b) increases continuously c) decreases gradually with sudden increases d)… read more
Cher
Cher
JustAnswer Expert & Mentor;Teacher/Tutor
Masters Degree
1,652 satisfied customers
The radioactive isotope carbon-14 is present in small quantities
The radioactive isotope carbon-14 is present in small quantities in all life forms, and it is constantly replenished until the organism dies, after which it decays to stable carbon-12 at a rate propor… read more
R.R. Jha
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
A cup of coffee at 195 degrees is poured into a mug and left
1)A cup of coffee at 195 degrees is poured into a mug and left in a room at 72 degrees. After 1 minutes, the coffee is 144 degrees. Assume that the differential equation describing Newton's Law of Coo… read more
akch2002
akch2002
Master's Degree
3,134 satisfied customers
Part 1 Matter as Energy & Structure 1. When a pair of
Part 1 – Matter as Energy & Structure 1. When a pair of electrons is shared between two atoms, a covalent bond is said to have formed. Most often, the pair is formed a. by excess valence electrons b. … read more
Chris M.
Chris M.
M.S.W. Social Work
Master's Degree
2,850 satisfied customers
1. If you reverse the direction of an electric current in a
1. If you reverse the direction of an electric current in a wire the magnetic field around the wire will A) be oriented as it was before B) become oriented with an opposite north direction C) flip to … read more
R.R. Jha
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
The half-life of a radioactive isotope is 187 d. How many days
The half-life of a radioactive isotope is 187 d. How many days would it take for the decay rate of a sample of this isotope to fall to one-fourth of its initial value? Answer = d… read more
Curtis K
Curtis K
Computer Engineer
Master's Degree
1,397 satisfied customers
chemistry help how do i solve these 31. Polonium-208 is
chemistry help how do i solve these 31. Polonium-208 is an alpha emitter with a half-life of 2.90 years. How many milligrams of polonium from an original sample of 2.00 mg will remain after 8.00 years… read more
Safa Khan
Safa Khan
Master's Degree
63 satisfied customers
I have a chemistry test that I need help with. I have seen
I have a chemistry test that I need help with. I have seen it on your site before but I could not get the answers. There are 5 sections of 20 questions each or 100 multiple choice questions. I will pa… read more
Dr. Amit
Dr. Amit
GP & Online Health Advisor & Writer
Bachelor's Degree
976 satisfied customers
If a sample of a radioactivce isotope has a half-life of 3
If a sample of a radioactivce isotope has a half-life of 3 years, how much of the original sample will be left at the end of: a. 3 years? b. 6 years? c. 9 years? d. 15 years?… read more
muvee
muvee
Master's Degree
1,030 satisfied customers
1. Among _______ series of hydrocarbons, alkanes, _______,
1. Among _______ series of hydrocarbons, alkanes, _______, and alkynes make up distinct groups. A. carbon-hydrogen, propanes B. homologous, alkenes C. carbon-hydrogen, alkenes D. homologous, propanes … read more
lifesaver
lifesaver
Bachelor's Degree
980 satisfied customers
1. Among _______ series of hydrocarbons, alkanes, _______,
1. Among _______ series of hydrocarbons, alkanes, _______, and alkynes make up distinct groups. A. carbon-hydrogen, propanes B. homologous, alkenes C. carbon-hydrogen, alkenes D. homologous, propanes … read more
Ms Lovelee
Ms Lovelee
Economics Tutor
Associate Degree
146 satisfied customers
Buchanan Corp. is refunding $12 million worth of 10% debt which
Buchanan Corp. is refunding $12 million worth of 10% debt which orginall had a 25 year life. The new bonds will be issued for 8%, the current bond market rate. The corporation's tax rate is 35%. The c… read more
Amol srivastava
Amol srivastava
Master's Degree
446 satisfied customers
For Scott- Explain how scientists date sedimentary rock ...
For Scott- Explain how scientists date sedimentary rock layers.(include how they would use radioactive dating to be more precise)… read more
Scott
Scott
MIT Graduate
Master's Degree
16,745 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...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

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!!!!

AlexLos 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.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, 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.

EstherWoodstock, 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.

RobinElkton, 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.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

LogicPro

LogicPro

Engineer

14,482 satisfied customers

Expert in Python,Java C++ C C# VB Javascript Design SQL HTML

Manal Elkhoshkhany

Manal Elkhoshkhany

Tutor

4,720 satisfied customers

More than 5000 online tutoring sessions.

Linda_us

Linda_us

Finance, Accounts & Homework Tutor

3,138 satisfied customers

Post Graduate Diploma in Management (MBA)

Chris M.

Chris M.

M.S.W. Social Work

2,850 satisfied customers

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

F. Naz

F. Naz

Chartered Accountant

2,270 satisfied customers

Experience with chartered accountancy

Bizhelp

Bizhelp

CPA

1,887 satisfied customers

Bachelors Degree and CPA with Accounting work experience

Jabi

Jabi

Tutor

1,795 satisfied customers

I've been an Expert on JustAnswer since July 2010.

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x