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Gemma
Questions and answers by visitors named
Gemma
Questions (44)
Is melting endothermic or exothermic?
Things that are melting are taking on heat, endothermic Would freezing be the same? No, of
2 answers
1,250 views
I know that Ununhexium is in period 7, group 16. What evidence would be able to support this?
Here is a web site for an on-line
1 answer
425 views
GIVE THE EMPIRICAL FORMULAE OF THE HIGHEST HYDRIDE AND HIGHEST FLUORIDE OF UNUNHEXIUM, EXPLAINING HOW YOU ARRIVED AT YOUR
3 answers
689 views
suppose that ununhexium undergoes a succession of a-decays reactions. What isotype would be the final product?
how did you arrive
1 answer
335 views
A 0.21 g of Sulfuris acid is dissolved completely in sufficient water to make 0.25 litre of final solution. Calculate the
1 answer
457 views
Any help with s103 06 QUESTION 5??
You would do better, I think, to post your question and let everyone try to help rather than
1 answer
482 views
which action would result in the more (financially) valuable product: taking one proton from each nucleus in a sample of gold or
1 answer
1,067 views
what is the pH of Sulphuric acid?
It depends upon the molarity. pH = -log(H<sup>+</sup>) -log = ? pH = -log(H^+) find (H^+),
1 answer
443 views
When an acid and an alcohol react does it produce an ester? If so ehat type of reaction is this?
I call it esterification. It is
1 answer
480 views
what is the meaning of a glycosidic C-1 to C-4 linkage?
Since this is not my area of expertise, I searched Google under the key
1 answer
700 views
I am writing an essay on the subject of, 'The metabolism of green plant cells in relation to energy exchange process.'
Can anyone
1 answer
452 views
what differences would there be in the product cells at telephose II of meiosis if there had been one crossing over at a
1 answer
898 views
Gametes produced in the process of meiosis in humans (chromosome 4)has a long and short arm the short arm has the gene for
1 answer
538 views
Gametes produced in the process of meiosis in humans (chromosome 4)has a long and short arm the short arm has the gene for
1 answer
520 views
What are the four earth systems? and how do they interact with eachother?
Lithosphere, Biosphere, Atmosphere, and Hydrosphere.
1 answer
966 views
where does banksy come from
1 answer
290 views
A long-distance call using DEC costs 20 cents for the first minute and 16 cents for each additional minute. The same call,
2 answers
606 views
Mandi can be paid in one of two ways: Plan A-- A salary of $400 per month, plus a commission of 8% gross sales; or Plan B-- A
3 answers
1,059 views
(x+3/4)^2 = 17/16
My teacher taught us a square root method, but I am confused with it on this one! I would prefer if you show me
1 answer
377 views
A turbo-jet flies 50 mph faster than a super-prop plane. If a turbo-jet goes 2000 miles in 3 hours less time than it takes the
3 answers
623 views
Do you know a site with some practice problems for a quadratic formula (ax^2 + bx + c) for my test tomorrow? Thank you so much!
4 answers
1,123 views
What is the length of the hypotenuse of a right triangle with legs of 5 and 12 units?
What is the "hypotenuse" and "legs" of a
2 answers
932 views
Do you hyphenate 3D or leave it one word?
3 answers
430 views
give 2 legal obilgations of manufacurers and employers with regards to cleaning agents
1 answer
266 views
A student completes a titration by adding 12.0 milliliters of NaOH(aq) of unknown concentration to 16.0 milliliters of 0.15 M
3 answers
1,793 views
A biomass power station burns forestry residue which has 2000 ppm potassium in it and produces 2% ash by weight (think Ive
1 answer
352 views
standard enthalpies of formation
H20(l) = -286 LiOH(s) = -487 standard enthalpies of solution for LiOH(s) to split into it's ions
3 answers
1,523 views
is there anyway that a diagram or something can be drawn or pasted into the question box for a math problem?
2 answers
514 views
Given circle A with circumference 20 pi and the length of arc KD equal to 10/3 pi. Find the area of the shaded region.
>>>>>>>>>>
5 answers
453 views
sam weighs 720N on the earth and 120N on the moon.what does this tell you about the value of gravity on the moon?
1 answer
415 views
Pt present for suture removal. sutures removed and slight oozing occurs in midsection of wound. wound dressed and pt advised to
1 answer
435 views
2nd question, pt present for PO check of head wound Pariental area healed well. RTO prn ( pf hx/px/sf/mdm) what is the code...
1 answer
413 views
help ...Pt present for suture removal. sutures removed and slight oozing occurs in midsection of wound. wound dressed and pt
3 answers
510 views
Calculate the concentration of nitrate ions, NO3- , in mol dm-3, of a solution made by dissolving 2.5000 g of ferric nitrate
2 answers
706 views
calculate the mass of iron in 2.5000g of feric nitrate nonahydrate Fe(NO3)3.9H2O
2 answers
526 views
Preform dilution calculations for 10 ml of 2 M stock solution. Molecular weight for the component is 48.6 g / mol
1 answer
418 views
Jean has a total of 24 coins consisting of just quarters and nickels. The coins total $3.40. How many of them are quarters?
2 answers
827 views
Whats my rule
Input 140. Output. 22 Input 100. Output. 62 Input. 91. Output. 71 So if the input is 10 what is the output?
2 answers
568 views
were there any similarities between the roman emperors nero and caligula, and the roman general mark antony?
2 answers
556 views
P4 (g) + 3O2 (g) <-> P4O6(s)
At a particular temperature, Keq = 4.6. If [P4O6] at this temperature is 1.2M, calculate the
1 answer
426 views
A point P(x,y) moves so that the line joining P to A(9,-5) is perpendicular to B(4,5). Derive an equation specifying the locus
3 answers
406 views
The mass of potassium iodate (KIO3) contained in an impure sample was determined by titration with sodium thiosulfate (0.1005
6 answers
759 views
Correlate the concentrations of solutions in the cytosol to the concentration of the solutions outside of the cell during
1 answer
262 views
When doing jump rope activities what type of stretch is important to add to your warm-up?
A) Calf stretches B) Abdominal twists
1 answer
285 views
Answers (37)
Find the arc length and area of a sector and a circle if the arc measure is 80• and the length of the radius is 6 cm.
Answer the following
15! I have the same homework-
X = 20! Easy my dude
yea i think it is D/ 6x5+6x3
just tell me the right answers
oh thx matt
look i just need help.
i need to show the work pls help mrs,sue
thank you sid.V you rock. oh and plus everyone got the answers off of sid.V so you guys sould be saying thank you to sid.V
what are the answers for the whole test
thx kya i got 100%
i have 5 quistions
oh yes is wrong i got 7/9 like wow but thx
thx nikki H it help when you have someone giving you the answers thx :D
omg thank you a normal tree i got 100%
ok but what about part two
ok i only got a 67 i got one wrong with nikki so i think unicorns is right
yeah i think it is d :) i have a A+ in science.
thxs woah dude i got an 100% thank you sooo much:)
Thx so much I am passing because of this website
Is that correry?
I got 0.1099g
How do I find mL?
I did using my materials but I get comfuse do I code twice.
I beieve is Gumbo
diagnose is 681.11 E/M 99202, I&D great toe 10060 modifier TA, Excision great toe 11750 modifier TA, and 99024 PO check..
Reiny?
The shaded region is between IKD THere are to lnes opposite of each other. Then to parallel lines through those lines. Thers is a circle in the middle with a circumference of 20 pi. THen there is a triangle that connected to the outer lines to the right.
Molarity = moles/volume (dm3) so you need to convert your volume into dm3. 1dm3 = 1000ml so your equation should be; molarity = 0.56/0.100 = 5.6moldm-3
Not sure about the KBr and the sand but iron is magnetic so that can be removed with a magnet. Sorry I cannot answer fully.
The first step would be to calculate the MR's of each substance so you could get the reacting masses so: 3H2 = (3 x 2 x 1) = 6 N2 = 14 x 2 = 28 2NH3 = (2 x 14) + (2 x 3 x 1) = 34 so in theory you need 6litres of H2 and 28litres of N2 to produce 34litres of
Electrostatic bonding forces relates to covalent compounds and the shared pair of electrons, it is when the nucleus of one atom attracts the electron of another atom and the electrons become shared between the two atoms. All you need to do now is pick out
Use the formula moles = mass/Mr Mr of sodium = 23 Rearrange the equation to make mass the subject. mass = moles x Mr and put in the numbers... mass = 2 x 23 = 46g Hope this helps
You need to know the formula for silver nitrate which is AgNO3 Then you work out the MR of silver nitrate = 108+14+(16x3) = 170 Then you work out the MR of the nitrogen contained in silver nitrate. There is just one nitrogen atom so it would be 14. Then
first of all you would need to find out the number of moles in solution using moles = mass/Mr Mr of AgNO3 = 108+14+(16x3) = 170 moles = 1.70g/170 = 0.01 Then you can use the formula: concentration = moles/volume(dm3) = 0.01/0.250 = 0.04moldm-3 hope this
Thank you for your help!
