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Natash
Questions (41)
Discuss 5 major conflict between management and shareholders that can affect the performance of firm.
1 answer
177 views
One statistic used to assess professional golfers is driving accuracy, the percent of drives that land in the fairway.
Driving
0 answers
1,353 views
why does a soluble impurity reduce the melting point range of a pure compound ?
why is it advisable to run a mixed melting point
2 answers
1,683 views
the Ksp of CaF2 = 1.46*10^-10 and Ka of HF = 3.5*10^-4 Calculate the pH of a solution in which the solubility of CaF2 = .0100
1 answer
874 views
the pH of a .100 M solution of sodium formate = 8.37. Calculate the value of Ka of formic acid.
okay so I know that the anion of
4 answers
1,306 views
so we did this lab on chromatography, and in the beaker was 10 mL of HCI and 35 mL of acetone.
IF the distilled water used to
2 answers
1,441 views
suppose that there are two components, A and B, in a mixture. The chemical affinity of A for the stationary pahse is less than
1 answer
1,199 views
By trial and error with your calculator, find the angle theta for which sin theta and theta differ by 5%. This calculation must
1 answer
852 views
okay so we did a lab on muscle physiology. acquired one small 2 cm length of psoas muscle . teased the bundle of muscle fibers
0 answers
575 views
A reaction has deltaHrxn=-127 kJ and delta S rxn=314 J/K. At what temperature is the change in entropy for the reaction equal to
2 answers
1,673 views
Okay so Im doing a lab on preparation of K3[Fe(C2O4)3]*3H2O The final weight I got 2.835g. How can I find the theoretical yield
4 answers
7,264 views
2H2O2 --->2H2O + O2
What is the instantaneous rate of formation of O2 at 50s? THeres a graph with the concentration of H2O2 as a
1 answer
1,645 views
Consider the following reaction:
2N2O(g)--->2N2(g) + O2(g) a. express the rate of the reaction with respect to each of the
1 answer
4,085 views
why are sig. figs important?
1 answer
452 views
satiety would be induced by all of the following EXCEPT
a. cholecystokinin b. naloxone c. morphine d.seratonin I know its not a
0 answers
558 views
Ghrelin is postulated to ba a satiety factor. True or False.
I think its false, but im not sure
1 answer
447 views
Glucagon and cortisol increase lipolysis. True or False
Plz if your not a 100% sure don't answer, THanx!
0 answers
461 views
Find cosq and sinq if the terminal side of q lies along the line y = - 2 x in
quadrant IV.
1 answer
1,283 views
Rank the following compounds in order of decreasing boiling point:
KCI CO2 CH2O
2 answers
2,248 views
what is the appropriate hybridization for the carbon atom in CO2?
the explanation I was given is 2 electron groups around the
1 answer
864 views
order the elements Mg, K, Ca, S according to second ionization energy
I know that K would have the highest second ionization
1 answer
658 views
what is the orbital diagram for Au+, how do you fit the f orbitals in?
2 answers
2,488 views
Prove that
cos4x=8cos^4x-8cos^2x+1 so I'm guessing you begin with the left side cos4x=cos2(2x) then im kinda lost
2 answers
1,328 views
solve the following equation in the interval [0,2pi]. Give the answer as a multiple of pi. Do not use decimal numbers
(sin(t))^2=
3 answers
900 views
Find all solutions of the equation 2sin^2x-cosx=1 in the interval [0,2pi)
x1= ? x2=? x3=?
2 answers
2,589 views
Use an addition or subtraction formula to write the expression as a trigonometric function of one number:
tan75degrees-tan15degre
1 answer
685 views
simplify and write the trigonometric equation in terms of sine and cosine.
tan^2x-sec^2x
2 answers
575 views
Give exact answers
Sin(11pi/8) so this is sin(pi/4+pi/3) sin(pi/4)*cos(pi/3)+cos(pi/3)*sin(pi/4) rad2/2*1/2+1/2*rad2/2 which
1 answer
2,067 views
dizziness during hyperventilation is due to a decrease in cerebral blood flow. The decreased blood flow is caused by
a.
1 answer
918 views
Pulmonary fibrosis may be caused by
a.smoking b.allergic reactions c.breathing in coal dust. d.increased mucus production I'm
1 answer
726 views
the primary drive to breath is elicited by which of he following:
a.reduced PO2 b.reduced PCO2 c.increased PO2 d.increased PCO2
2 answers
544 views
Hypotension could be induced by
a.excessive renin secretion b.excessive antidiuretic hormone secretion c.excessive aldosterone
1 answer
796 views
Blood flow is increased by
a.hypotension b.anemia c.vasoconstriction d.edema I don't see how any of these can be the answer
1 answer
483 views
what drug that is used as a treatment for asthma, promotes bronchodilation by selectively stimulating beta2-adrenergic
1 answer
524 views
If 17.0g of MgSO4*7H2O is thoroughly heated,what mass of anhydrous magnesium sulfate will remain ?
I don't even know where to
1 answer
1,366 views
How many oxygen atoms are in 1.90g og quartz (SiO2)?
ok so 1.90g SiO2(1mol/60.0843g SiO2)(2 O mols/1 mol SiO2)
1 answer
2,302 views
anaerobic respiration is triggered when the ratio of ________falls below a critical level.
a.carbon dioxide supply to oxygen need
1 answer
839 views
Ok so I have a right triangle with the hypothenuse = to 5, one side =3 and the other =4 and X is the angle between the
0 answers
650 views
Why are titanium and gallium not very similar while lithium and sodium would be most similar ?
1 answer
1,457 views
A 92kg astronaut and a 1.2E3kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite,
0 answers
657 views
A 0.132kg baseball is dropped from rest. If the magnitude of the baseball's momentum is 0.811kg m/s just before it lands on the
1 answer
1,169 views
Answers (7)
OHHHH got it, without the ICE chart I sort of get confused. Thanx!
I know that part, but why are the conc. of OH and HA the same ?
yes Fe(NH4)2(SO4)2 is the ferrous ammonium sulfate. here is the procedure, if you can try to figure it out that'll be great thank you! 1. prepare and label the following solutions: a.10g of ferrous ammonium sulfate dissolved in 30mL of water containing 2
sorry I'm a bit confused. These are the solutions we had to prepare a. 10g of ferrous ammonium sulfate dissolved in 30mL of water containing 2 drops of 6M H2SO4. Which I got 8.87g b. 6g of oxalic acid in 50mL of water. I got 4.4008g c. 6.6 g of K2C2O4*H2O
Yes...work backwords to check your answer
thats what I did, but it's giving me a wrong answer
distribute the 5 first m+5m-5=7 6m-5=7 6m=12 m=2