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Marcus

Questions (139)

The amount or size of a force is known as ???
1. 1 answer
2. 44 views
This broach contains a miniature picture of America statesman Henry Clay. Likely owned by Clay or his ancestors, this broach is
1. 1 answer
2. 219 views
Marbles rolling down the ramp and horizontally off your desk consistantly land 72.0 cm from the base of your desk. Your desk is
1. 0 answers
2. 160 views
Give reason:Particles of steam have more energy than water at 1000 degree celsius.
1. 1 answer
2. 205 views
Explain if the situation below describes a correlation that is not a causal relationship or a correlation that is a causal
1. 2 answers
2. 416 views
how to differentiate (x^3) - 2 using [f(x+h)-f(x)]/h
1. 2 answers
2. 604 views
Identify one or two early signs of conflict in the colonies
1. 1 answer
2. 559 views
pls HELPEric owns and operates the Hot Ham food truck. The expression 3.25b+2h gives the cost of b burgers and h hot dogs. What
1. 6 answers
2. 693 views
How would you compare infrared radiation absorption and emission rates for an object at constant temperature?Thank you :)
1. 1 answer
2. 478 views
Which sentence BEST describes the role of mercantilism in the growth of transatlantic trade during the 1600s?European countries
1. 2 answers
2. 825 views
Please help ASAP I'm stuck!!!create an imaginary example of finding a given amount of Lokium and DOL in a rock, and then
1. 1 answer
2. 2,365 views
While cruising at a steady speed of 400 km/h, you identify a storm cloud straight ahead 45 km away. To avoid turbulence, you
1. 1 answer
2. 961 views
Two similar rectangular prisms have a scale factor of 4:1. The smaller prism has a volume of 6 cubic centimeters. What is the
1. 1 answer
2. 1,270 views
Ben throws a ball vertically upward from the top of a cliff. The height of the ball above the base is approximated by the model
1. 1 answer
2. 793 views
Which 3D shape has no edges, faces, or vertices?
1. 0 answers
2. 4,812 views
Why are the fairies singing a lullaby?A. to put their queen to sleep B. to put their babies to sleep C. to put the bird to sleep
1. 7 answers
2. 1,345 views
Use the excerpt to answer the question 1. Which is the best paraphrase of the lines from the poemA. We are happy when the sun is
1. 9 answers
2. 2,894 views
how did people react to the great depression
1. 9 answers
2. 662 views
Consider the functions A(x, y) = x^2y + xy − 3xy^2, and B(x, y) = xe^xy − y(a) Calculate the x derivative of A, or Ax. (b)
1. 2 answers
2. 447 views
Can some help me do a thesis on National Committee for a SANE Nuclear Policy?
1. 1 answer
2. 396 views
How can I find Indirect and Direct characterization about Ponyboy in the Outsiders?
1. 3 answers
2. 679 views
Which of the following does NOT happen when vinegar and baking soda react?true or False?
1. 4 answers
2. 1,886 views
Electrical energy is required to decompose water into hydrogen and oxygen.True or False
1. 5 answers
2. 2,270 views
Billions of dollars have been raised to help in the fight against malaria. The following table shows the value of some of the
1. 1 answer
2. 411 views
Who was Reinhard Heydrich and what did he do?
1. 1 answer
2. 310 views
Can any give a brief description of these:What was the Kristallnacht? What was like in the ghettos? What was like to lose faith
1. 9 answers
2. 501 views
I have a journal that I have to do called "Life in Camps", it's about the holocaust.Why can I write in the journal?
1. 1 answer
2. 398 views
An object is thrown upward from the top of a 160-foot building with an initial velocity of 144 feet per second. The height, h,
1. 1 answer
2. 1,989 views
A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 4 feet less than the
1. 2 answers
2. 1,608 views
Simplify the following expression. Write the result using positive exponents.(-2xy^-3)^-5 / (xy^-1)^-1
1. 3 answers
2. 625 views
(4y^-3/5x^-4)^2
1. 1 answer
2. 306 views
robby runs for 5 minutes. He walks for 10 minutes. He runs for 7 minutes. He walks another 4 minutes. He runs again for 8
1. 1 answer
2. 463 views
How to draw tow different parallelograms that each have an area of 4 square inches
1. 1 answer
2. 352 views
Suppose babies born in a large Hospital have a mean weight of 4088 in a variance of 5569. if 128 babies are sample that a random
1. 1 answer
2. 1,987 views
What is 17% of 200?.17 x 200 = 34 What is the number 200 increased by 17%? 200 x 1.17 = 234 What is the number 200 decreased by
1. 3 answers
2. 718 views
A projectile with a mass of 2.50 kg is shot horizontally from a height of 15.0 m above a flat surface. The projectile's initial
1. 3 answers
2. 995 views
A seagull flies at a velocity of 7.00 m/s straight into the wind.(a) If it takes the bird 17.0 min to travel 6.00 km relative to
1. 1 answer
2. 1,232 views
A projectile is launched at ground level with an initial speed of 51.5 m/s at an angle of 35.0° above the horizontal. It
1. 0 answers
2. 726 views
What is the difference between modern fantasy and regular fantasy. Is modern fantasy merely a subgroup of fantasy? Some examples
1. 1 answer
2. 633 views
What are the values (negative) being taught in this advertisement? The advertisement is trying to sell a military style watch.
1. 1 answer
2. 714 views
What are the values (negative) being taught in this advertisement? The advertisement is trying to sell a military style watch.
1. 2 answers
2. 604 views
50.0 mL of a solution of HCl is combined with 100.0 mL of 1.15 M NaOH in a calorimeter. The reaction mixture is initially at
1. 2 answers
2. 1,850 views
Sodium metal is immersed into graduated cylinder that holds exactly 32.5 ml. The sodium metal used to fill the cylinder weighs
1. 2 answers
2. 644 views
Simplify the exponential expression[-10x13y^12]^0 ---------------- 2x^9y^3
1. 2 answers
2. 446 views
I am sorry I didn't complete the problemHere is the question: Doris invested some money at 7% and some money at 8%. She invested
1. 1 answer
2. 725 views
Four cheeseburgers and five milkshakes cost a total of $25.50. Two milkshakes cost $1.75 more than one cheeseburger, and also
1. 1 answer
2. 588 views
Doris invested some money at 7% and some money at 8%. She did at 7%. Her yearly total from the two investments was $7.80.How
1. 1 answer
2. 621 views
You pull a sled across a horizontal frictionless patch of snow. If your pulling force is in the same direction as the sled's
1. 1 answer
2. 2,976 views
At a summer campfire, the radius of a marshmallow on a stick expands at the rate of\ {r ' (t)} = \frac{2.4 }{3 t + 6} mm/s where
1. 1 answer
2. 618 views
aluminum reacts with sulfuric acid to produce aluminum sulfate and hydrogen gas. how many grams of aluminum sulfate would be
1. 1 answer
2. 1,627 views
A running track consists of two straight 88.5m segments and two semicircles of radius 39.0mThe distance a runner travels in one
1. 0 answers
2. 658 views
Meteorologists track a storm using radar. The radar shows a storm centered 30km west of town. Ninety minutes later, it's 30km
1. 0 answers
2. 495 views
Which sentence uses proper grammar?I'm bored by math class. Or I'm bored of math class.
1. 4 answers
2. 621 views
Factor:49^2+112r+64 =
1. 3 answers
2. 362 views
Many portable gas heaters and grills use propane, C3H8(g).Using enthalpies of formation, calculate the quantity of heat produced
1. 3 answers
2. 1,722 views
To illustrate the calculation, assume that 21.95 mL of a thiosulfate solution is required to reduce the iodine liberated by
1. 3 answers
2. 653 views
Which of the following result in buffered solutions when equal volumes of the two solutions are mixed?a.) .1 M HCl and .1 M
1. 1 answer
2. 1,417 views
The question is: what is the ratio [NH3/[NH4+] in an ammonia/ammonium chloride buffer solution with pH= 10.00? (pKa for
1. 1 answer
2. 2,802 views
What is the pH of a 0.1 M NaOCl solution (Ka of HOCl is 2.95 x10-8)I did: x squared/.10= 2.95x10-8 x squared= 2.95x10-9 x=
1. 1 answer
2. 2,951 views
First, the question I'm given is: What is the pH of a 1.0 L solution containing 0.25M acetic acid and 0.75M sodium acetate ( Ka
1. 1 answer
2. 463 views
The indicator bromocresol green (HIn) can be in two different forms: As HIn the color of the indicator is yellow, an In the
1. 0 answers
2. 753 views
What is the [H+] of the 0.25 M HCl solution?I'm not given a Ka value, so I'm assuming I won't need one to solve this particular
1. 0 answers
2. 387 views
When looking at a titration curve, I have to determine which is not true and I have it narrowed down to two options:The initial
1. 0 answers
2. 460 views
When the concentration of a weak acid in solution is equal to the concentration of its conjugate base in solution, then:Would
1. 0 answers
2. 1,131 views
A function can be continuous at every point of a deleted neighborhood of some point and still not have a limit at the point
1. 1 answer
2. 570 views
A function is continuous at a point if its limit exists at that point.I think it's false because of the counterexample of
1. 1 answer
2. 425 views
lim x->0+ for 1/1+ (5^(1/x))I think there's no limit, since there is a vertical tangent at 0, is this correct?
1. 0 answers
2. 354 views
lim x->1 (1-(1/x^3))/ (1-(1/x^2))I keep seeming to get a denominator of zero when I rationalized the denominator.
1. 1 answer
2. 421 views
lim as x approaches 3+x^2+x-6/18-3x-x^2 I factored it into (x+3)(x-2)/(6+x)(3-x)
1. 2 answers
2. 352 views
solve (x-3)/(x+1) > 5I get x < -2 every time, but it doesnt work when I plug it back in. (I plugged in -5)
1. 3 answers
2. 336 views
Is 3.05313131313131313131313131... irrational or rational? Thanks.
1. 2 answers
2. 344 views
Domain of g(x)g(x)= sqrt(3-(sqrt(25-x^2)) I got -5, -4, 4, and 5. I wrote it like [-5, -4] U [4, 5] I don't think that's right?
1. 3 answers
2. 514 views
I'm working on a problem dealing with calculating the heat of vaporization for vapor pressures problem.By substituting the
1. 1 answer
2. 900 views
Same kind of problem. How to rearrange to put an equation in quadratic form.Example I'm given is 49.7= 2x^2 / (1.00-x)(2.00-x)
1. 1 answer
2. 474 views
Stupid question time. I need to figure out how to rearrange equations to solve for x in my chemistry homework, which involves
1. 1 answer
2. 554 views
A proton is put on the positive Y axis a large distance (100km) from the origin. What is the minimum speed required in the - Y
1. 2 answers
2. 533 views
A proton is put on the positive Y axis a large distance (100km) from the origin. What is the minimum speed required in the - Y
1. 4 answers
2. 1,109 views
A sample of propane C3H8 contains 13.5 moles of carbon atoms how many total moles of atoms does the sample contain?
1. 2 answers
2. 5,204 views
The molal boiling-point constant for water is 0.51 degrees C/molal. The boiling point of a 1.00 molal solution of Ca(NO3)2
1. 1 answer
2. 2,464 views
Another proposed mechanism problem:H2O2 + I ---> H2O +IO slow H2O2 + IO ---> H2O + O2 + I fast Which of the following statements
1. 0 answers
2. 791 views
The decomposition of ozone may occur through the two-step mechanism shown below:step 1 O3 ----> O2 + O step 2 O3 + O ---> 2O2
1. 1 answer
2. 1,440 views
Which of the following solutes, dissolved in 1000g of water, would provide a solution would the lowest freezing point?.030 mol
1. 1 answer
2. 1,645 views
Which of the following solutes in aqueous solution would be expected to exhibit the smallest freezing-point lowering (assuming
1. 3 answers
2. 5,290 views
Which of the following pure liquids is the best solvent for sodium fluoride?CCl4 C2C6 HCl BCl3 or PCl5 My guess would be either
1. 1 answer
2. 1,423 views
In a given 1st order reaction A ---> products, the initial concentration of A is 0.40 M. What will be the concentration of A
1. 1 answer
2. 2,554 views
Cyclopropane rearranges to form propene:CH2CH2CH2 --> CH2=CHCH3 by first-order kinetics. The rate constant is k = 2.74 x 10-3
1. 1 answer
2. 1,815 views
The decomposition of N2O5(g) --> NO2(g) + NO3(g) proceeds as a first order reaction with a half-life of 30.0 seconds at a
1. 1 answer
2. 1,103 views
In a given 1st order reaction A ---> products, the initial concentration of A is 0.40 M. What will be the concentration of A
1. 1 answer
2. 671 views
2A + B2 + C --> A2B + BCRun # Initial Rate (M-1s-1) (A)o (B)o (C)o 1 1.6 x 106 1.2 M 1. x 10-2 M 1.0 M 2 1.6 x 106 2.4 M 1. x
1. 1 answer
2. 933 views
What is the vapor pressure of a aqueous solution containing 10 % (by weight) ethylene glycol (62 g/mol) at 25 °C. PH2O = 24.3
1. 2 answers
2. 3,820 views
When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the
1. 2 answers
2. 3,910 views
A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C6H14 and 10.0 g benzene, C6H6. What is the mole fraction of hexane?I
1. 1 answer
2. 2,508 views
What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal solution of ethanol?
1. 10 answers
2. 3,521 views
What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass?
1. 26 answers
2. 4,262 views
The rate of a reaction A ---> B is expressed by the rate expression rate=k(A)2. If the molar concentration of A is tripled, the
1. 1 answer
2. 832 views
how do I write equation for the following?input a 20/28/36/44/52 output b 5/7/9/11/ ? ? is 13
1. 1 answer
2. 355 views
You have 2/3 bag of flour. Use 3/4 ofthe flour to make cookie dough. How much of the entire bag do you use to make cookie dough?
1. 5 answers
2. 2,713 views
The teacher asked Laura to give eachstudent 2/5 sheets of paper. If there are 20 students in the class how much paper did Laura
1. 1 answer
2. 496 views
A weightlifter has a basal metabolic rateof 80.0 W. As he is working out, his metabolic rate increases by about 650 W. (a) How
1. 0 answers
2. 1,016 views
What is the acceleration of a 50kg person is pushed with a force of 4N
1. 1 answer
2. 403 views

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