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hannah

Questions (468)

are we allowed to use calculators in sat 1 math?
1. 2 answers
2. 488 views
i need help with variables and patterns algebra
1. 2 answers
2. 257 views
A 0.07 kg toy is made up of a spring of constant 375 N/m. When you place the toy on the floor, the spring 7 cm and release it,
1. 1 answer
2. 498 views
A 0.05 kg toy is made up of a spring of constant 466 N/m. When you place the toy on the floor, the spring 5 cm and release it,
1. 0 answers
2. 534 views
A 0.05 kg toy is made up of a spring of constant 466 N/m. When you place the toy on the floor, the spring 5 cm and release it,
1. 1 answer
2. 540 views
It takes 9.10 J of work to stretch a spring 5.10 cm from its unstressed length. What is the spring constant k in N/m?
1. 0 answers
2. 481 views
It takes 5.50 J of work to stretch a spring 5.90 cm from its unstressed length. What is the spring constant k in N/m?
1. 0 answers
2. 402 views
Amy threw a ball of mass m=0.79 kg horizontally with an initial velocity v=33.4 m/s from a height h=1.9 m. What is the kinetic
1. 1 answer
2. 349 views
A 0.730 kg particle has a speed of 3.00 m/s at point A and kinetic energy of 7.40 J at B. What is its speed at B? Answer in
1. 1 answer
2. 389 views
A 4.62 x 10-5 kg raindrop falls vertically at constant speed under the influence of gravity and air resistance. After the drop
1. 1 answer
2. 614 views
what allows results to be verified to maintain credibility?
1. 6 answers
2. 363 views
A movie theater seats 400 people. For any particular show, the amount of money the theater makes is a function m(n) of the
1. 1 answer
2. 1,049 views
I need help on writing a book report on anastasia absolutely
1. 3 answers
2. 396 views
After you preform your experiment, you determine that the Kf value for naphthalene is 6.9 . You are using 10g of naphthalene and
1. 1 answer
2. 1,043 views
Strontium has density of 2.64 and crystallizes with the face-centered cubic unit cell. Find the radius of the strontium atom
1. 3 answers
2. 904 views
How much heat (in ) is evolved in converting 1.00 of steam at 150.0 to ice at -55.0? The heat capacity of steam is 2.01 and of
1. 2 answers
2. 1,121 views
How much heat (in ) is evolved in converting 1.00 of steam at 150.0 to ice at -55.0? The heat capacity of steam is 2.01 and of
1. 1 answer
2. 1,143 views
Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 C. At what temperature does benzene boil
1. 1 answer
2. 755 views
What is the role of economic theory in the way economies are run today? I need some concrete examples.
1. 1 answer
2. 453 views
5x10^2 divide by 7x10^4what is the answer in standard form
1. 1 answer
2. 1,100 views
expand5(3w^2+4)
1. 2 answers
2. 393 views
assume you are standing on a dock and watching the waves pass directly under where you are standing. You count the number of
1. 0 answers
2. 581 views
arson:crime rose:_________It must be 7 letters long.
1. 1 answer
2. 852 views
the expiremental probability that ryan will have math homework on a given school day is 80%.on how many of the next30 school
1. 1 answer
2. 1,081 views
so i posted a question very similar to this yesturdya but i have now have a more spesific question. do you guys know any poems
1. 1 answer
2. 1,105 views
how to solve2x+3y=17 3x+y=31 then 2(x-3y) y=3x-2 then the last one 2(x+4) x+y=17 please help
1. 1 answer
2. 343 views
what two major political groups make up the Caribbean countries
1. 1 answer
2. 371 views
magnesium hydroxide + hydrobromic acid -->is the formula for that Mg(OH)2(s) + HBr(aq) ->H2O(l) +BrOH(s) and are the physical
1. 2 answers
2. 5,287 views
24x^2-22x+3
1. 2 answers
2. 968 views
im studying for a test and i have no idea where to even start for this practice problem..??a 0.15M(molarity im assuming)solution
1. 1 answer
2. 639 views
calculate the freezing and boiling points of each of the following solutions.(a) 0.50 m glucose in ethanol for the freezing
1. 0 answers
2. 609 views
A 26.8 mL sample of an unknown HClO4 solution requires 46.8 mL of 0.101 M NaOH for complete neutralization. What was the
1. 1 answer
2. 1,137 views
How many grams of magnesium oxide are formed when 13.5 L of oxygen gas, measured at STP, completely reacts with magnesium metal
1. 1 answer
2. 855 views
How many grams of magnesium oxide are formed when 13.5 L of oxygen gas, measured at STP, completely reacts with magnesium metal
1. 0 answers
2. 633 views
A balloon holds 29.3 kg of helium. What is the volume of the balloon if the final pressure is 1.2 atm and the temperature is
1. 1 answer
2. 572 views
An experiment shows that a 114 mL gas sample has a mass of 0.167 g at a pressure of 721 mm Hg and a temperature of 32°C. What
1. 1 answer
2. 481 views
i need help on this question:Equal masses of gaseous N2 and Ar are placed in separate flasks of equal volume at the same
1. 1 answer
2. 1,102 views
if csc theta= -5/3 and theta has its terminal side in quadrant III, find the exact value of tan 2 theta.
1. 1 answer
2. 1,065 views
Determine the electron and molecular geometries of each of the following molecules. For those with more than one central atom,
1. 2 answers
2. 1,129 views
I need an example of a health fraud item/ product. I need to find one product that has health fraud and that I can write 150
1. 3 answers
2. 561 views
For each of the following sets of atoms and ions, arrange the members in order of increasing size.Mg2+ F- and Na+
1. 2 answers
2. 764 views
whats the lcd of 8/9x+2/3x=1/9x+45
1. 1 answer
2. 346 views
can you unscrample this word? its in french. "ratuere"
1. 1 answer
2. 314 views
Use the periodic table to write electron configurations for each of the following elements. (Type your answer using the format
1. 3 answers
2. 864 views
What is the frequency of radiation whose wavelength is 26.80 Angstrum ?at first i got 1.000e17 and it was wrong. now i only have
1. 1 answer
2. 524 views
what properties of carbon explain its ability to form many macromolecules?
1. 2 answers
2. 445 views
ok. so this may be hard to explain and may not be enough info that you understand but ill try. I did a paper and my teacher
1. 2 answers
2. 1,295 views
For my english class i had to right a paper on civil war slang and how this topic releated to the book The Red Badge of Courage.
1. 4 answers
2. 690 views
Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling sodium bicarbonate on it and then mopping up
1. 5 answers
2. 4,114 views
Calculate the number of liters of hydrogen, measured at STP, that can be produced from the reaction of 0.155 mol of aluminum
1. 6 answers
2. 592 views
2. Given the following equation, C2H5OH(l) + 3 O2(g)---> 2 CO2(g) + 3 H2O(l)How many liter of CO2 are expected in the combustion
1. 1 answer
2. 988 views
when looking at a chemical equation what are the evidences that a chemical reaction has occured. Or what is the evidence that it
1. 1 answer
2. 395 views
I need two examples where in the book Huckleberry finn. Huck doesn't believe in himself or he is having self doubt.does anyone
1. 0 answers
2. 797 views
how would you find the answer?A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the
1. 0 answers
2. 939 views
can you explain?For each of the reactions shown, calculate how many grams of the product form when 16.8 g of the reactant in
1. 0 answers
2. 594 views
in the book huckleberry finn manys words are used that mean something like "to beat someone" for example to lick.i need to find
1. 4 answers
2. 742 views
what is the definition of dauphin this huckleberry finn?I searched on the internet but there were so many i didn't know which
1. 3 answers
2. 604 views
Ca(s) + 2 H2O(l) Ca(OH)2(aq) + H2(g)acid-base double-displacement gas evolution oxidation-reduction precipitation
1. 8 answers
2. 784 views
Classify each of the following reactions in as many ways as possible. (Select all that apply.)CuO + 2 HCl --> CuCl2 + H2O you
1. 7 answers
2. 1,452 views
I am having lots of trouble with these questions:Classify each of the following reactions in as many ways as possible. (Select
1. 4 answers
2. 800 views
what is the drug classification of inhalants?
1. 0 answers
2. 398 views
balance the equation:(i can balance the equation but the problem i have is finding the formula for the last partHC2H3O2(aq) +
1. 1 answer
2. 468 views
balance the formulaCu(OH)2(s) + HNO3(aq) -> H2O(l) + fine the formula here(aq) i did the H20 but i don't know the other formula
1. 2 answers
2. 674 views
more it itthani what does that mean??? also: EVELATOR and: DENTURES E F
1. 1 answer
2. 3,334 views
I need major help im not understanding this at all:Complete and balance each of the following equations for acid-base reactions.
1. 1 answer
2. 837 views
how do i know what the ions present are of this formula:Na3PO4 what are the anions and what are the cations? how do you know
1. 10 answers
2. 2,940 views
Balance the skeletal equation for the synthesis of urea. (Enter 0 for any empty boxes. Use the lowest possible coefficients.)_NH
1. 1 answer
2. 481 views
i am divisible by 8 and9.i am a three digit multiple of 10. i am between 200 and 700.
1. 3 answers
2. 554 views
Aluminum hydroxide and sulfuric acid neutralize to make water and aluminum sulfate.the first step i have done: Al(OH)3 + H2SO4
1. 1 answer
2. 859 views
write a balanced equation for:Gaseous carbon dioxide and liquid water react to produce aqueous glucose (C6H12O6) and oxygen gas.
1. 4 answers
2. 1,221 views
write a balanced equation for:Gaseous carbon dioxide and liquid water react to produce aqueous glucose (C6H12O6) and oxygen gas.
1. 4 answers
2. 1,201 views
is An antacid neutralizes stomach acid.a chemical reaction?
1. 1 answer
2. 473 views
Find the value of sec theta for angle theta in standard position if the point at (–2, –4) lies on its terminal side.If 0°
1. 1 answer
2. 1,912 views
The rock in a lead ore deposit contains 84% PbS by mass. How many kilograms of the rock must be processed to obtain 1.1 kg of
1. 0 answers
2. 485 views
i had posted this question about a week ago and had gotten help from bobpursley(thank you so much btw) but i was showed how to
1. 2 answers
2. 650 views
For english i need to write a paper of the the slang words used during the civil war. I already have many examples but i cant
1. 2 answers
2. 835 views
What length pendulum will produce a period of 1.0s?
1. 1 answer
2. 699 views
you measure the period of a 2.0m pendulum and find it is 2.8s. what is the value of g at your location?
1. 1 answer
2. 567 views
Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C, 37.51%; H,
1. 2 answers
2. 2,617 views
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide.1
1. 1 answer
2. 4,031 views
suppose you had two samples of the same radioactive isotope. one sample had a mass of 25 grams. the other had a mass of 50
1. 3 answers
2. 2,050 views
Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride in grams required to
1. 7 answers
2. 6,834 views
A 4.91 g sample of aluminum completely reacts with oxygen to form 6.85 g of aluminum oxide. Use this data to calculate the mass
1. 2 answers
2. 692 views
so i posted this question yesturday and got some help. which is the stuff below. can you look at the last thing i said which was
1. 7 answers
2. 1,032 views
How many moles of O are in 13.5 mol Fe(NO3)3?i got 7.32e25 but soon realized that is totally wrong.
1. 2 answers
2. 493 views
Determine the mass(in grams) of each of the following compounds.a) 0.709 mol magnesium fluoride i got 30.7grams but it was
1. 5 answers
2. 460 views
how can you use rounding to estimate 331+193
1. 2 answers
2. 708 views
what is the equation for gamma decay?
1. 1 answer
2. 461 views
ok so I did a radiation and distance lab: this is my results:Distance(cm) Counts(30 sec) 0 1729 1 634 2 391 3 239 4 150 5 124 6
1. 1 answer
2. 418 views
A 43 kg sample of water absorbs 343 kJ of heat. If the water was initially at 22.1°C, what is its final temperature?I got 1.9
1. 5 answers
2. 1,515 views
3. Define proactive & retroactive inhibition. Create a memory strategy to help you remember & discriminate between them. Explain
1. 1 answer
2. 598 views
a)339 Cal to kilowatt-hours
1. 1 answer
2. 369 views
when Flour, water, sugar and other ingredients are combined and baked into a cakeis that a chemical change?
1. 1 answer
2. 448 views
how do u do 18t +12r over 3?
1. 1 answer
2. 409 views
is the solution to 2x^2-4x+5...1(+/-)((sqrt6)/2)i ??
1. 1 answer
2. 355 views
How do I do this 4x +3= 2x+11
1. 1 answer
2. 276 views
how do you simplify 15/56?
1. 1 answer
2. 283 views
what is the percent is 2/6
1. 1 answer
2. 288 views
True or false: If the human capital possessed by two workers is nearly the same, their wag rates will be nearly the same.
1. 0 answers
2. 370 views
if the perimeter of a parallelogram is 132cm the longest possible length of a diagonal is less then ?
1. 1 answer
2. 677 views

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