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jessie

Questions (265)

A 4.5 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=13.50 N at an angle
1. 1 answer
2. 3,621 views
in this experiment about recrytallization im having a strange problem with the calculations.we used 0.1 gram of impure unknown,
1. 0 answers
2. 493 views
% recovery: how do i calculate it?we're doing a recrystallization in chem class we used 0.1 g and we recovered 0.3 g how do i
1. 1 answer
2. 538 views
I need help with this question. the question. ask to complete the following relationship between units. question a.___g= 1Gg how
1. 0 answers
2. 559 views
i know the formulaFC = # Valence Electron - bonds - lone pairs but am i supposed to use that formula for all elements on the
1. 4 answers
2. 663 views
in 35s, sam lifts his 8 kg case from the floor to .8m above the ground (in his arms) carries it 24m across the room(at the same
1. 1 answer
2. 525 views
Calculate the solubility of magnesium hydroxide (Mg(OH)2), ksp=1.1x10^-11?i have done this problem so many times and keep
1. 2 answers
2. 2,390 views
Which compound listed below has the greatest solubility in water?CdCO3 Cd(OH)2 CaF2 AgI ZnCO3 how can i tell which on to choose,
1. 2 answers
2. 2,511 views
which solution has the highest concentration of hydroxide ions?a ph=7.93 b ph=12.59 c ph=7.00 d ph=9.82 e ph=3.21 i know the
1. 5 answers
2. 6,020 views
What is the pOH of a 0.032 M Ca(OH)2 (strong base) solution?i solved it by doing 14=-log (0.064) 14-1.19= 12.81 but the right
1. 1 answer
2. 653 views
this isnt exactly a chemistry question, but i am doing chemistry homework with my calculator.and i want to know if someone can
1. 1 answer
2. 716 views
there are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day.How much time should we spend
1. 2 answers
2. 732 views
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion?i posted this before and i tried
1. 1 answer
2. 558 views
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion?i posted this before and i tried
1. 1 answer
2. 5,493 views
What is the pH of an aqueous solution at 25°C in which [OH-] is 0.025 M?
1. 1 answer
2. 626 views
What is the pH of an aqueous solution at 25° that contains 3.98 × 10-9 M hydronium ion?
1. 1 answer
2. 455 views
Nitrosyl bromide decomposes according to the following equation.2NOBr (g)(equilibrium arrow) 2NO (g) + Br2 (g) A sample of NOBr
1. 1 answer
2. 11,893 views
Nitrosyl bromide decomposes according to the following equation.2NOBr (g)(equilibrium arrow) 2NO (g) + Br2 (g) A sample of NOBr
1. 1 answer
2. 889 views
Pendulum A is 20 cm long and has a 5 gram mass on it. Pendulum B is 30 cm long and has a 10 gram mass on it. Which one has a
1. 0 answers
2. 464 views
d is between ce=6x cd=4x+8 de=7 units find ce
1. 1 answer
2. 409 views
ok i have to plot a graph for my kineticsour teacher said in the end it'd the end the graph would give me numbers like this, y =
1. 0 answers
2. 549 views
What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2(formula weight = 164 g/mol) in 115 g of
1. 3 answers
2. 4,618 views
The concentration of a benzene solution prepared by mixing 12.0 g C6H6 with 38.0 g CCl4 is__________ molal.
1. 4 answers
2. 10,258 views
the mole fraction of urea (molar mass = 60g/mole) in a solution prepared by dissolving 16g of urea in 39g of h2o
1. 3 answers
2. 4,288 views
evaluate each function.g(x)=|x-2|+3;find g(0)
1. 2 answers
2. 461 views
John took all his money out of his savings account. He spent $50 on a radio and 3/5 of what remained on presents. Half of what
1. 1 answer
2. 2,903 views
for some independent data using the mann whitney testgroup a has rank sum of 97.5 with group size = 9 group b has a rank sum of
1. 2 answers
2. 451 views
can you just tell me if this statement is correctif a compounds conjugate base is aromatic then it is more acidic compared to a
1. 0 answers
2. 489 views
for some independent data using the mann whitney testgroup a has rank sum of 97.5 with group size = 9 group b has a rank sum of
1. 0 answers
2. 431 views
can you please explain this question to mefor part b i get t=0.7 by trial and error and 0.6 percent of the population but im
1. 0 answers
2. 419 views
how do you solve this for x i keep getting stuck with x in too many places4^x -6(2^x) -16 =0 i assume you have to use ln but i
1. 1 answer
2. 427 views
how do you form the probability tree for this??The commonly used test to assess Down's syndrome risk in the unborn foetus is the
1. 1 answer
2. 507 views
Write a 1,750- to 2,450-word paper that formulates your personal code of ethics, using one of the major ethical frameworks as a
1. 1 answer
2. 1,277 views
Describe the functions of organizational networks and specialized criminal justice databases in 200 to 300 words, recognizing
1. 0 answers
2. 1,068 views
A mixture contains two chemicals, A and B, with masses mA and mB. The total mass of the mixture, m, remains constant. B is
1. 0 answers
2. 576 views
A mixture contains two chemicals, A and B, with masses mA and mB. The total mass of the mixture, m, remains constant. B is
1. 1 answer
2. 521 views
what amount of solute present in each of the following solutions?(a) 750 ml of 2.00 M HNO3 (1.50 moles, 94.5g)
1. 1 answer
2. 520 views
1. what amount of solute present in each of the following solutions?(a) 750 ml of 2.00 M HNO3 (1.50 moles, 94.5g)
1. 1 answer
2. 785 views
if a van de graaff generator is charged to 50,000 volts, how much energy does it take to add an additional electron to the
1. 1 answer
2. 1,165 views
Explain how evaluation and management (E/M) codes are grouped
1. 1 answer
2. 541 views
Now that you understand the historical background of the juvenile justice system, consider issues facing the juvenile court
1. 8 answers
2. 698 views
Which is NOT a human benefit of bacteria?combat viral infections clean the environment make food fix nitrogen thanks
1. 1 answer
2. 408 views
write the words in a expression::::: A subtracted from the product of 4 and B
1. 1 answer
2. 841 views
i need help with linear equations...HELP
1. 1 answer
2. 372 views
Tommy was weaving different-sized squares of yarn for a class quilt. He had a skein of yarn that was 5 2/3 yards long.He made
1. 1 answer
2. 558 views
what is the vertix and axis of symmetry of the graph of a quadrantic function
1. 1 answer
2. 392 views
Write the numeral in base ten 555six
1. 4 answers
2. 2,631 views
Find A u B, given A = {6, 15, 3} and B = {15, 3, 100}.
1. 1 answer
2. 293 views
Write or illustrate the number 7589, using expanded notation with exponents
1. 4 answers
2. 602 views
Express as a rational expression : [(x^3+y^3+z^3-3xyz)/(a^3+b^3+c^3-3abc)] * [(a^2+b^2+c^2-ab-bc-ca)/(x^2+y^2+z^2-xy-xz-zy)]Show
1. 1 answer
2. 442 views
Express as a rational expression : [(x^3+y^3+z^3-3xyz)/(a^3+b^3+c^3-3abc)] * [(a^2+b^2+c^2-ab-bc-ca)/(x^2+y^2+z^2-xy-xz-zy)]Show
1. 1 answer
2. 468 views
Where can I find answers to questions about genetic alterations?
1. 1 answer
2. 503 views
discuss the competitive adavntages that can accure to an organization that genuinely is committed to workplace diversity, and
1. 0 answers
2. 417 views
Place the North Pole of a bar magnet to the North Pole of another bar magnet. Note the distance at which they repel each other.
1. 0 answers
2. 520 views
When the roller coaster is at the top of the loop, why doesn’t the person fall off the roller coaster?What forces are acting
1. 2 answers
2. 1,108 views
what are three ways to use electromagnetic energy?
1. 1 answer
2. 568 views
write a balanced reaction for 50.92 grams of carbon disulfide,including molar masses. then calculate the moles of carbon
1. 2 answers
2. 1,242 views
my topic is chlamydia in the community.How do i support my thesis statement with compelling arguments and counterarguments
1. 2 answers
2. 637 views
how do i make 100ml of (0.01mol/L) KMnO4 out of 10.0ml(0.10mol/L)KMnO4
1. 4 answers
2. 533 views
Please help me to correct my grammar. ThanksExercise is bodily activity that helps for the development and maintenance of
1. 1 answer
2. 748 views
can someone help me to proofread my argument paragraph and to see whether this is a good argument paragraph or not? if not,
1. 5 answers
2. 835 views
i have written an argument paragraph, but my grammar is bad. so can someone tell me how to proofread my paragraph. thxThe issue
1. 2 answers
2. 653 views
What is the defintion of supplementary angles and complimentary angles and what is the difference?
1. 2 answers
2. 711 views
iam doing a project on a lily and i need to know if it reproduces asexually, sexually or bothtrumpet lily Your question has
1. 0 answers
2. 589 views
i am doing a project on a lily and i need to know if it reproduces asexually, sexually or botha lilium -lily trumpet lily The
1. 0 answers
2. 581 views

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