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Chloe

Questions and answers by Chloe, page 2

Questions (308)

If 150.0 grams of iron at 95.0 degrees Celcius, is placed in an insulated container containing 500.0 grams of water at 25.0
1. 5 answers
2. 3,960 views
12. A particular power boat travelling at V0 km/h when its power is turned off it will have its speed V given by V(t) = V0 x
1. 1 answer
2. 425 views
How would I prove:2^n + 2^n = 2^(n+1) The question asks for correct formatting in giving proof however I don't recall learning
1. 1 answer
2. 343 views
What is the molar solubility of Sr3(AsO4)2 and the concentration of Sr^+2 and AsO4^-3 in a saturated solution at 25C? the Ksp is
1. 3 answers
2. 2,057 views
From the following Information, calculate the standard change of enthalpy for the combustion of coal. SHOW WORK AND BALANCED
1. 1 answer
2. 471 views
From the following Information, calculate the standard change of enthalpy for the combustion of coal. SHOW WORK AND BALANCED
1. 2 answers
2. 618 views
a 3.00g sample of baking soda is heated and decomposes according to the reaction below. Calculate the theoretical yield in grams
1. 2 answers
2. 596 views
The state of Confusion enacted a statute requiring all trucks and towing trailers that use its highways to use a B-type truck
1. 1 answer
2. 435 views
In the story The Necklace written by Guy de Maupassant what are the examples of similes and metaphors?
1. 5 answers
2. 1,714 views
Mrs. Yale wrote a number between 35 and 48 on her board. The sum of the digits is 7. What number did Mrs. Yale write on her
1. 1 answer
2. 476 views
What type of poem is this ?We found his flag one bitter morning And knew our hopes had come to woe. We had come pursuing glory
1. 2 answers
2. 1,181 views
what is the estimated quotient of 6 divided into 75?
1. 6 answers
2. 388 views
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
1. 1 answer
2. 392 views
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
1. 2 answers
2. 550 views
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
1. 1 answer
2. 356 views
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
1. 1 answer
2. 399 views
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
1. 1 answer
2. 397 views
There are 16 cubic boxes of erasers in a case. What are all the possible dimensions for a case of erasers ? please help need in
1. 4 answers
2. 1,667 views
Sammy Sosa
1. 1 answer
2. 322 views
what wiped out most of the indigenous population of australia
1. 3 answers
2. 413 views
A 17.6ml sample of a monoprotic acid is titrated with 0.212M NaOH. If 69.2ml of base is required to reach the equivalence point,
1. 1 answer
2. 410 views
Consider the titration of 41.2ml of 0.230 M HF with 0.220 M NaOH . Calculate the ph after the addition of 11.9ml of sodium
1. 3 answers
2. 493 views
What is the ph at the equivalence point for a titration of 250 mL of 0.17M piperidine with 0.17 M nitric acid.(piperidine: Kb =
1. 1 answer
2. 411 views
how did you get (that's 0.17M x 1/2 = 0.085M)
1. 3 answers
2. 269 views
Calculate the molar solubility of MgCO3 in a solution that already contains 1.7×10−3 M sodium carbonate.MgCO3 Ksp = 6.82 x
1. 3 answers
2. 946 views
The following thermodynamic data was obtained for an unknown compound. Delta Hvap = 31.3 kj/mol and Delta S Vap= 79.7 kj/mol
1. 2 answers
2. 517 views
Given that for the vaporization of benzene Hvap= 30.7 kj/mol and Svap= 87.0 J(K * mol) , calculate Delta G (in kJ/mol) for the
1. 3 answers
2. 1,343 views
Calculate the enthalpy of fusion of naphthalene (C10H8) given that its melting point is 128 Celsius and its entropy of fusion is
1. 3 answers
2. 1,607 views
At 20 degree celsius, Ka for an unknown monoprotic weak acid is 0.00088. Calculate the Delta G (in kJ/mol) for the reaction of
1. 1 answer
2. 439 views
The following thermodynamic data was obtained for an unknown compound. Delta Hvap = 31.3 kj/mol and Delta S Vap= 79.7 kj/mol
1. 3 answers
2. 467 views
Chloroform (CHCL3) has a normal boiling point of61 'C and an enthalpy of vaporization of 29.24 kJ/mol. What is the value of
1. 4 answers
2. 1,938 views
DrBob222,I don't know how to solve this problem either. And yes, this is the question for this problem. I even double check it.
1. 6 answers
2. 714 views
What is the Ka of the amino acid serine if it is 34.5% dissociated at pH- 9.46?
1. 1 answer
2. 426 views
A. Find and list all of the different half- cell combinations. Hint 15 combinations!1. Copper/ Cu2+ 2. Lead/ Pb2+ 3. Magnesium/
1. 4 answers
2. 904 views
An airplane is flying at an altitude of 6 miles and passes directly over a radar antenna. When the plane is 10 miles away, the
1. 1 answer
2. 916 views
Using your experimental data, calculate E0cell. Standard voltaic cells contain 1M solutions, but we used 0.10M solutions in all
1. 2 answers
2. 608 views
How to calculate Q in Nernst Equations, we used 0.10M solutions in all of our half cells.Nernst equation: Ecell = E0cell - RT/nF
1. 1 answer
2. 511 views
In the following sentence identify the appositive or appositive phrase and the noun or pronoun defined by the appositive.Mr.
1. 2 answers
2. 754 views
The value of y varies directly with x. If y = 64 when x is 16, what is x when y is 288?
1. 7 answers
2. 4,889 views
A 5.0 kg \rm kg, 52-cm \rm cm-diameter cylinder rotates on an axle passing through one edge. The axle is parallel to the floor.
1. 2 answers
2. 594 views
if a 16 ounce can of soup costs 64 cents, what is the cost for each ounce of soup?
1. 2 answers
2. 496 views
A gas diffuses twice as fast as CF4 (g). The molecular mass of the gas is:I'm not sure how to figure this out without the rates
1. 7 answers
2. 2,092 views
1.) Solve for x. 2x(x - 12) = -402.) Solve for x. 3x2 + 2x = 12 - 7x 3.) Simplify the expression. 8sqrt[-63] 4.) Find the
1. 2 answers
2. 787 views
1.) Solve for x. 2x(x - 12) = -402.) Solve for x. 3x2 + 2x = 12 - 7x 3.) Simplify the expression. 8sqrt[-63] 4.) Find the
1. 6 answers
2. 1,082 views
The diameter of a circular pizza is 24 in. How much pizza is eaten (in square inches) if half of it is consumed?
1. 4 answers
2. 1,023 views
If the equilibrium constant for a reaction A + B <----> C + D is K, which is true of the equilibrium constant K* for the
1. 1 answer
2. 396 views
Given the equilibrium reaction N2(g) + 3 H2(g) <---> 2NH3(g) + heat, an increase in temperature will:a) Increase the value of K
1. 5 answers
2. 6,365 views
You have to choose a battery brand to use in your smoke alarm. Company A's batteries have a mean lifespan of 1.2 years, with a
1. 1 answer
2. 431 views
nutrition is the process of the body using foods that we eat in order to sustain lifetrue or false
1. 4 answers
2. 1,409 views
1. A class of 10 students all received a 90 on the final exam. What is the standard deviation?_________
1. 1 answer
2. 405 views
DO I NEED TO USE 2-TAILED OR 2-TAILED RESULTS? WHY?A researcher believed that 2 hours per week of intensive exercise would
1. 3 answers
2. 828 views
Grant stands 3 meters from the check out at the grocery store holding a 20N bag of potatoes for 10 minutes. How much work does
1. 6 answers
2. 1,777 views
What point is the apex of a bridge?
1. 2 answers
2. 832 views
1. What happens to companies with high operating leverage when the market declines? What happens when the market expands?
1. 1 answer
2. 505 views
What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm
1. 1 answer
2. 429 views
What happens to companies with high operating leverage when the market declines? What happens when the market expands?
1. 1 answer
2. 462 views
What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm
1. 1 answer
2. 334 views
-6(8k+4) = 21 + 3k
1. 1 answer
2. 436 views
Given a 1.00 M solution of NaOH, describe how you would prepare 500 mL of 0.05 M NaOH solution. You have a 500 mL volumetric
1. 2 answers
2. 653 views
How would a scientist determine the absolute age of a fossil?
1. 3 answers
2. 507 views
A plane flies due north at 300km/h but a crosswind blows north-west at 40km/h. Find the resultant velocity of the plane.Once I
1. 2 answers
2. 648 views
You (m=75.0 kg) are floating outside your space station, and- oh no- a siren sounds, and the doors start to close! At the
1. 1 answer
2. 495 views
Which explains how the greenhouse effect and greenhouse gases can affect global temperatures?A. The more greenhouse gases that
1. 2 answers
2. 646 views
Can someone please check my answers?A yard has a square gate that has an area of 8 square meters. 1. What is the height of the
1. 5 answers
2. 2,128 views
Profit from a car boot sale-Shared 5:2 Sita. Rhys Sita gets £30 How much does Rhys get? PLEASE SOMEBODY HELP ME WITH THIS
1. 4 answers
2. 477 views
I really need help with this I am really confused with the law, I have looked at multiple examples and I am still so confused, I
1. 3 answers
2. 794 views
suppose that a large volume of 3% hydrogen peroxide decomposes to produce 12mL of oxygen gas in 100 s at 298 K. Estimate how
1. 3 answers
2. 1,226 views
Use the data in the table to determine how long it will take for half of the original amount of SO2Cl2 to decompose at the
1. 4 answers
2. 1,304 views
A cash drawer has $267.00 total. There are no bills larger than a 10. There are 11 tens and 7 more 1s than 5s. How many of each
1. 3 answers
2. 378 views
1)Carson lost 5 pounds in one week. What property is used in this situation? Why?2)Frankie wanted to buy a new hat for $14, but
1. 1 answer
2. 395 views
Can you please tell me how to do this question:Translate the phrase "8 less than the quantity 17 times a number, n.
1. 1 answer
2. 417 views
Why is the Grand Canyon a natural physical system
1. 1 answer
2. 379 views
Write the fraction as a percent. If necessary, round to the nearest tenth of a percent.6/15 a. 40.0% *** b. 37.5% c. 33.3% d.
1. 10 answers
2. 3,500 views
Write the fraction as a percent. If necessary, round to the nearest tenth of a percent.6/15 a. 40.0% *** b. 37.5% c. 33.3% d.
1. 11 answers
2. 4,729 views
A new law requires that 15 of an individual’s income be invested in the stock market. Your accounts show that you need to put
1. 7 answers
2. 3,825 views
An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr[1]=0.05, Pr[2]=0.1, Pr[3]=0.25,
1. 4 answers
2. 1,757 views
How do i prove that left side equals right?Cot(A+B)=cotAcotB-1/(cotA + cotB)
1. 4 answers
2. 1,241 views
a flag pole is 25 ft high. your line of sight is 5 ft from the ground. the angle of elevation is 23 degrees, how far away from
1. 1 answer
2. 476 views
In which countries are the borno people found? What challenges might this create? Could there be any advantages to these
1. 3 answers
2. 484 views
Jay weighs 20 pounds more than Dan whose weight is twice what Kirsten's is. Their total weight is 320 pounds. How much does
1. 3 answers
2. 820 views
Use substitution to solve:sec^2x/(tan^2x -1) dx What substitution should I use (what should I let 'u' equal)? I've tried using
1. 1 answer
2. 361 views
Find, using substitution, the integral of:e^x /sqrt[e^(2x) -1] dx
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2. 377 views
Find using substitution:∫ 1/[x(1+lnx)^2] dx I'm not sure what substitution to use.
1. 3 answers
2. 500 views
Ethan had $12 more than Dakota. Ethan then gave 1/3 of his money to Dakota. The ratio of money Ethan had to the amount of money
1. 1 answer
2. 508 views
A Surprising Point of View: A Television Play in Two ActsCharacters: (in order of appearance) 1. JASON: a boy of about 14. He is
1. 10 answers
2. 1,657 views
What are the political, economic,and social reasons why the stamp act was not fair to the colonist?
1. 14 answers
2. 561 views
A trapezoid has an area of 220m^2, a height of 11m, and one base is 13m. Find the other base.
1. 1 answer
2. 390 views
A rock falls straight down from a height of 10 m. How long will it take the rock to hit the ground?
1. 1 answer
2. 414 views
Which fraction is the largest 3/4, 31/50 or 17/40
1. 1 answer
2. 308 views
In which sentence is the word periscope used correctly?A. Excited about her finding, the scientist used a periscope to view the
1. 4 answers
2. 688 views
Day had broken cold and gray, exceedingly cold and gray, when the man turned aside from the main Yukon trail and climbed the
1. 4 answers
2. 3,462 views
If a basketball player has a vertical leap of 1.29 m , then what is his takeoff speed and his hang time ( total time to move
1. 4 answers
2. 2,076 views
The angle of elevation to the top of a tower is 27 degrees, taken from a point 19 meters from the base of the tower. How high is
1. 2 answers
2. 513 views
A piece of decorated pottery from the Woodland Era is considered a(n)...a. fossil b. artifact c. hieroglyph d. chert I know its
1. 9 answers
2. 1,706 views
If my clothes are like this the hundred digit is greater than 7 the tens is one more than the hundreds digit and the ones digit
1. 3 answers
2. 488 views
3. Which ordered pair is a solution of the equation y=x-4?a. (2,6) b. (6,2) c. (-2,6) d. (3,1) 4. Which ordered pair is a
1. 4 answers
2. 980 views
What is the 9th multiple of 100
1. 2 answers
2. 606 views
If kelly has a blue shirt, a red shirt, an yellow shirt an only one pair of jeans. If kelly wears one shirt at a time, how many
1. 3 answers
2. 560 views
Were do the brackets go to make this equation true. 23+4=10🤓
1. 2 answers
2. 534 views
One number is three times the another number. If both numbers are positive and their product is 27, find the numbers
1. 1 answer
2. 439 views

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