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Nicole
Questions (979)
What is the weight of 6.14×10^21atoms of
phosphorus?Answer in units of g.
1 answer
360 views
How many atoms of mercury are present in
3.2 cubic centimeters of liquid mercury? The density of mercury is 13.55 g/cc. Answer in
2 answers
2,866 views
An analysis of nicotine (MW = 162 g/mol)
gives 74.0% carbon, 8.65% hydrogen, and 17.3% nitrogen. What is the TRUE (MOLECULAR)
2 answers
2,666 views
What is an example of physical science? I know it is movement but can you give an example in a sentance and explain please?
2 answers
575 views
You throw a ball with a mass of 160 g into the air with an initial speed of 19.8 m/s. How high does the ball rise?
1 answer
401 views
A brick is dropped out of a window. It hits the ground 3.64 seconds later. How high is the window?
1 answer
437 views
What is the balanced net ionic equation for copper(2)chloride and potassium carbonate ?
2 answers
6,798 views
What is the velocity of an electron that has a de broglie wavelength approximately the length of a chemical bond? Assume this
2 answers
6,320 views
Pencils come in packages of 10 each. Packages are packed 20 to a box, and boxes are packed 500 to a carton. How many pencils are
3 answers
945 views
if 0.75 mole of helium gas occupies a volume of 1.5. what volume will 1.2 mole helium occupy at the same teperature and
2 answers
2,040 views
Which of the following are examples of coordinate headings?
A. 3, b, iii B. A, i, a C. ii, 2, B D. A, B, C My answer was C but i
3 answers
999 views
Which of the following are examples of coordinate headings?
A. 3, b, iii B. A, i, a C. ii, 2, B D. A, B, C My answer was C but i
2 answers
3,146 views
Why does a titrated sample that is fuschia with phenolphthalein turn colorless when the solution is blown into? HINT: Use
1 answer
437 views
A compound is 52.17 % C, 13.04 % H and 34.78 % O. What is its empirical formula?
1 answer
546 views
What is the hybridization of the Fe(C2O4)33- complex?
1 answer
1,150 views
Substances with paired orbital electrons are considered:
1 answer
551 views
Is the Fe(C2O4)33- ion an inner or outer orbital complex?
1 answer
678 views
Which reagent oxidizes the ferrous oxalate dehydrate?
2 answers
573 views
Balance the following reactions using the non-traditional method of balancing redox Nickel(II) hydroxide + oxygen = Nickel(III)
1 answer
554 views
If a solution of 0.5 M HOAc dissociates as follows: HOAc + H2O „® H3O+ + OAc-, what is the final [H3O+] in the solution? Ka
1 answer
861 views
A three sided fence is to be built next to a straight section of river, which forms the fourth side of a rectangular region.
2 answers
3,298 views
A 1X Phosphate Buffered Saline solution was prepared by adding 1.44g of Na2HPO4 and 1.44g of H2PO4- to 800mL of water.
1 answer
767 views
A road perpendicular to a highway leads to a farmhouse located 6 mile away. An automobile traveling on the highway passes
1 answer
961 views
The conversion of glucose into lactic acid drives the phosphorylation of 2 moles of ADP to ATP and has a standard free energy of
2 answers
2,961 views
n2+3I2>2NI3 if you have 28g of N2how many grams of NI3 will you be able to make?
0 answers
501 views
A particular weak acid (HA) with a Ka of 2.0e-5 is 75% titrated with a strong base to produce a buffer solution. What is the pH
1 answer
826 views
Solve the simultaneous equation
1/p minus 1/q = 3/2 1/p plus 1/q = 4
1 answer
456 views
"I backed away from him until I was atop the forecastle deck. The line of the crew had split, some to either side. 'Help me!' I
1 answer
521 views
"The steady wash of the waves, the bobbing and swaying of the ship, the creak and groan of timbers, all told me the Seahawk was
1 answer
561 views
"Scores on the Wechsler IQ test approximate a normal curve with a mean of 100 and a standard deviation of 15.
b. What percentage
3 answers
1,232 views
In chapter 18 of The True Confessions of Charlotte Doyle, how is the crew beguiled (tricked) into believing Captain Jaggery's
1 answer
619 views
"Though I tried to keep my head up, my eyes steady, it was not easy. They looked at me as if I were some loathsome thing. At the
0 answers
494 views
In chapter 13 of The True Confessions of Charlotte Doyle, why are the sailors hesitant about Charlotte taking Mr. Johnson's
1 answer
504 views
In chapter 10 of The True Confessions of Charlotte Doyle, why does Cranick suggest that Captain Jaggery have Charlotte defend
0 answers
496 views
In chapter 9 of The True Confessions of Charlotte Doyle, what does Charlotte try to work out in her head? What conclusion does
0 answers
640 views
In chapter 9 of The True Confessions of Charlotte Doyle, Charlotte goes to the forecastle for the first time since she has been
0 answers
642 views
In chapter 9 of The True Confessions of Charlotte Doyle, where does Charlotte go for the first time since she has been aboard
1 answer
570 views
Calculate the slant height for the given cone. Round to the nearest tenth.
Diameter=18 cm. Height=7 cm. A.11.2 B.12.5 C.14.8
2 answers
877 views
Calculate the size of the gravitational pull of a sphere of mass 10kg on a mass 2.0kg when their centres are 0.2m apart.
What is
0 answers
649 views
Calculate the weight of an astronaut whose mass (including spacesuit)is 72kg on the surface of the moon?
What is the astronauts
1 answer
1,158 views
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the
3 answers
748 views
Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the
1 answer
1,787 views
A diamond is purchased for $3500. Its value increases 5% each year. Find the value of the diamond at the end of the sixth year
1 answer
482 views
A large asteroid crashed into a moon of a planet, causing several boulders from the moon to be propelled into space toward the
24 answers
15,783 views
What is the sum of the multiples of 4 from 16 to 100?
1 answer
2,370 views
It takes You, riding a motorcycle, 2 hours less time to travel 60 miles than it takes Marley to travel 50 miles riding a horse.
2 answers
695 views
The Roice family have a rectangular swimming pool. It measures 16' x 32'. This summer they are installing a sidewalk around the
0 answers
664 views
What is the centripetal force acting on an object with a mass of 20 kg moving at a velocity of 10 m/s in a circle with a
1 answer
701 views
A rope can withstand a maximum tension force of 500N before breaking. If we use the rope to pull a 24 kg bucket of water from a
1 answer
1,931 views
A 750 kg rocket accelerates straight upward from the ground at 60 m/s2. What is the force (thrust) provided by the engine?
1 answer
471 views
Human nerve impulses travel at about 10 m/s. Estimate the minimum reaction time from the moment you perceive an obstacle in
1 answer
586 views
Find (a) the magnitude and (b) the direction of the net force on an object given that the following forces act on the object at
1 answer
828 views
if x = ucos(pi/4) - vsin(pi/4) and y = usin(pi/4) + vcos(pi/4), find A, B and C so that,
5x^2 - 6xy + 5y^2 = Au^2 + Buv + Cv^2.
1 answer
483 views
In "Why, You Reckon?" what argument does the other man use to convince the narrator to team up with him? What lesson do you
4 answers
3,273 views
Identify the principal part of the underlined verb.
Lucia got the majority of the votes. (Points : 1) present present participle
2 answers
1,100 views
Identify the underlined word in the sentence. Write either D for direct object or I for indirect object.
Get that dog and those
1 answer
695 views
14 loins to 10 tigers
1 answer
409 views
Which of the following statements best describes the purpose of the motif of falling leaves in Gerard Manley Hopkins poem
1 answer
745 views
In works like "To Build a Fire", Naturalist writers such as Jack London advocated
x trusting in the wisdom of the natural world
2 answers
632 views
can we predict when a hurricane will occur? explain.
I have tried so man website and still no answer.. please help
0 answers
502 views
when do huricanes happen??
3 answers
473 views
Janet bought 1/2 cake. She ate 1/4 of the cake she bought. Then she cut the remainder into 2 equal pieces. What fraction of a
2 answers
1,564 views
-Athens does not live up to Pericles ideal democracy because Athenians use of ostracism contradicts Pericles statement that all
26 answers
1,198 views
How many grams of water, H2O, can be formed from the reaction of 8.9 grams of 2-propanol, C3H8O?
0 answers
704 views
Can someone please explain what "cultivating a winning personality" means?
Thank you :D
3 answers
479 views
A 0.500kg ball is tied to the end of a 1.50m string and revolved so its andle thata is 35 degrees.
a.) find the velocity of the
0 answers
638 views
An 8.00g bullet is fired at 220m/s into a 250g wooden block that is initially at rest. The bullet remains in the block and after
1 answer
551 views
Two tracking stations are on the equator 161 miles apart. A weather balloon is located on a bearing of N 32°E from the western
1 answer
1,448 views
A Coach found the correlation between physical fitness and athletic ability to be r=.65. the mean and standard deviation of the
0 answers
559 views
Juan’s first 3 exam scores are 85, 93, and 87. What does he need to score on his next exam to average 90 for all 4 exams?
let x
5 answers
2,382 views
I'm curious to know why does energy changes form?
2 answers
424 views
=weight of oranges in a 5-lb bag ~ N(m,0.2); (a) How many customers get cheated, if E(X)=5? (proportion p=________?) (b) What
0 answers
416 views
At the end of their paddling trip, Natalie and Herb drive back in separate vehicles. Natalie has 8 gallons of gas left in the
2 answers
800 views
Identify the italicized part of the sentence.
The main event will be a memory contest. subject predicate direct object indirect
5 answers
3,895 views
A weight is oscillating on the end of a spring. The position of the weight relative to the point of equilibrium is given by
4 answers
8,109 views
I have to write an argument in standard form before writing an essay on it. I'm using an article written by Jenny Price on
0 answers
707 views
My apologies if I make a mistake. I'm new to this, and my Health teacher has asked me to interview a smoker (a person that
1 answer
742 views
1. If alum is heated at first too strongly causing it to splatter out of the crucible what effect will this have on the
1 answer
928 views
Why is it important to use the maximum force reading from a data collection?
0 answers
536 views
If an author is skillful at representing the point of view and attitudes of a hobo, a nurse, a corporate CEO, and a variety of
1 answer
519 views
Kangaroos can easily jump as far as 8.0 m. If a kangaroo makes five such jumps westward and then seven such jumps northward,
1 answer
1,488 views
today, johns mom is 5 times as old as he is. in 7 years she will only be 3 times as old. what is johns age today?
1 answer
412 views
You are to write a short C program. The program will input two numbers: 1) number of miles to ship a package, and 2) the weight
1 answer
606 views
A standardized test has a mean of 88 and a standard deviation of 12. What is the score at the 90th percentile? Assume a normal
4 answers
2,366 views
Calculate how you would make 0.5L of a 0.5M (500mM) acetate buffer at a pH of 4.7. Available is sodium acetate and glacial
2 answers
1,702 views
∑(x+y)
c. ∑(x+∑(y)) d. ∑x+ ∑y e. ∑(x)+ ∑(y)* what do each of these mean? what's the differences?
3 answers
424 views
How far does your automobile travel in meters during your reaction time if
you are moving at 55 mi/h (25 m/s)?
1 answer
529 views
A ball is thrown from the ground. Its velocity after 4
^ ^ seconds is (15x -3y ) m/s. the range of the ball is 205 m. 189 m. 111
0 answers
508 views
How do I get the write out the problem for : The sample space is orange, purple and white. If P(orange)=2/5 and P(purple)=3/10,
2 answers
883 views
Please paraphrase this:
“In my experience as both a learner and later a language practitioner, one has to have a drive that
1 answer
466 views
3. Correct the following sentences for subject-verb agreement, tenses and fragments.
i) My car it is very beautiful. ii) When he
2 answers
667 views
If a*b=2a+b such that 2*3=2(2)+3,find (i) b when 3*b=b*5
(ii) d when d*(3*d)=(d*3)*d
1 answer
323 views
A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 5.9 m due east.
1 answer
1,540 views
The following random sample was collected: 22 33 44 6. The 80% confidence interval for the mean is?
I have the answers; however,
1 answer
487 views
A triangular-shaped wall has a base of 2x=4 and a height of x+3. The area of the triangle is 56 squared inches. What is the
1 answer
627 views
what does base mean?
2 answers
343 views
The mean is 18.1
The z-score for 13.0 is - 1.7. What is the standard deviation for this data set.
2 answers
2,190 views
A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee.
3 answers
1,591 views
A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is
1 answer
468 views
A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is
1 answer
468 views
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